614 Commits

Author SHA1 Message Date
Deluan Quintão
dc40bcaf80
feat(cli): add an artwork command group for diagnosing and re-driving artwork (#5957)
* feat(artwork): add a resolution chain trace collector

* feat(artwork): trace the local priority chain

* fix(artwork): record priority candidates the chain never evaluated

* refactor(artwork): report never-evaluated candidates as skipped

* feat(artwork): trace external agents at the gate seam

* feat(artwork): add repository queries to enqueue by current source

* feat(artwork): expose a tracing resolver for the CLI

* feat(artwork): read a single queue row by item

The explain CLI must report whether an item is queued, at what priority and when it
retries; the queue repository could only be drained in eligibility batches, which
cannot see a row that is still backing off.

* feat(cli): add artwork explain

Prints why an item has the artwork it has: the stored state, its queue row, the
governing config, the resolver's priority-chain walk and the verdict. Offline by
default so a diagnostic run cannot add load to an external provider; --live asks
the agents for real. Playlists and radios do not walk a priority chain, so they
report that instead of an empty chain table.

* fix(artwork): trace an external tier that never reaches an agent

A configured 'external' token vanished from the chain when no enabled agent provided
images for that entity type, and for synthetic artists, leaving the trace unable to
say whether the tier was even considered.

* fix(cli): never state an artwork outcome the walk did not observe

A transient external failure traced as 'error' fell through to 'not resolved', which
is the most common state behind a missing-artwork report. It is now indeterminate, and
an offline win that a skipped higher-priority external candidate could have taken says
so instead of naming a winner the live chain might not pick.

* feat(cli): add artwork refresh

* feat(cli): add artwork reprocess

Bulk re-enqueues artwork by kind and/or by the source an item currently
resolves from, previewing the matched count and confirming before queueing.

The preview counts with CountBySource (rows matched) and reports separately
what EnqueueBySource inserted: its DO NOTHING conflict policy leaves an
already-queued row untouched, so the two numbers differ and the output must
not claim the skipped rows were re-queued.

An unknown --source is rejected against the sources present in item_artwork,
rather than silently matching nothing and printing a reassuring 0.

* fix(cli): cover the reprocess selection rule and validate sources table-wide

The reconciliation that makes --source alone target every kind was only
exercised through runReprocess, which no test calls: mutating it to
`all := reprocessAll` left the suite green. It is now reprocessSelectsAll,
covered for all three selectors.

Scoping source validation to the selected kinds made the same well-formed
filter valid or invalid depending on which other kinds were selected, and its
error read the same for a typo as for a source that simply does not apply to
the chosen kind. Validation is now table-wide: a typo still aborts, while a
valid-but-inapplicable source falls through to "Nothing matches".

Also: the prompt now counts only the kinds that reach an external agent as
external cost, and --dry-run on an empty selection reports a dry run.

* fix(cli): cover the reprocess --yes guard and preview the external cost

Mutating the --yes check to `if true` left the suite green, so the one bypass
of the confirmation was unverified. The choice is now reprocessConfirm(yes, in),
covered in both directions.

The external estimate only reached the operator through the prompt, which
--dry-run skips — hiding the number in the one mode that exists to show it
before committing. The preview now carries it, and the prompt drops the clause
when no lookup will be made.

An empty selection says so again under --dry-run.

* feat(artwork): add read-only queue and absent counters

Both are needed by the artwork status CLI: a queue breakdown by kind and priority, and
the absent totals split against the recheck cutoff.

* feat(cli): add artwork status

Reports the queue, where artwork currently resolves from, absent counts against the 24h
recheck window, and the stored config fingerprint versus the current one — the line that
turns 'why is my server re-resolving everything?' into one command.

fingerprint() and staleAbsentAge are exported so the CLI reports the values backfill
itself compares, instead of a second copy of the formula that can silently drift.

* fix(cli): lead the artwork status backfill line with the queued backlog

By the time anyone runs a diagnostic, backfill has usually already stored the new
fingerprint, so 'up to date' was printed while thousands of items churned through external
providers. The backlog is the finding; the fingerprint is context.

Also echoes the config inputs the fingerprint covers, so a change can be traced to the
setting that caused it, and pins the rendered rows: the Absent values, the queue TOTAL and
a queue-scoped kind/priority pair were all unasserted, so kindName and priorityName were
effectively untested. FingerprintInputs is now the single listing ConfigFingerprint hashes;
a pinned hash proves the value did not change.

* refactor(artwork): export the trace outcome vocabulary

The CLI hardcoded the outcome literals and the "external:" prefix, so renaming a
constant's value in core/artwork left cmd compiling and the suite green while
`artwork explain` silently degraded its verdict.

Renaming a value now fails the golden vocabulary test in core/artwork and the
explainResult tests in cmd.

* fix(cli): keep the re-enqueue warning when a backfill is already running

A stale stored fingerprint with items already queued is the worst state the
system can be in: a second full re-enqueue is pending on top of the one running.
The line carried the weakest wording of the three, and was untested.

* refactor(artwork): drop the unreachable breaker branch from the tracing gate

--live wires the tracing gate straight to passthroughGate, so errBreakerOpen can
never reach it; the test only passed by injecting a fake gate.

* refactor(artwork): delete the never-emitted not-reached outcome

Candidates after the winner are lower priority and say nothing about why a source
won; the ones that matter sit above it and are already recorded.

* refactor(artwork): make the trace nil-safe in one place only

add already handles a nil trace, so record's own guard was dead; Steps was the
odd one out and would panic where every other method tolerates nil.

* refactor(artwork): export the trace types directly

ChainTrace and TraceStep were unexported types re-exported through aliases,
which existed only so the CLI had a name to refer to them by. The types are
public API — Resolver.Steps returns []TraceStep and the CLI constructs a
ChainTrace — so name them that way and drop the indirection.

Encapsulation is unchanged: add, mu and steps stay unexported, so only this
package can write a step.

* refactor(cli): simplify parseArtworkKind with slices.Contains

Replaces a nested loop and a manual append with slices.Contains and the
repo's slice.Map helper. Same behaviour, same error message.

* fix(cli): print the absent artwork source under the name --source accepts

`artwork explain` rendered the stored empty source as "(absent)", while
`artwork reprocess --source` only accepts "absent", so pasting what explain
printed straight back into reprocess was rejected as an unknown source.

* refactor(artwork): own the kind list and the chain predicate in the package

Export RecheckKinds and add WalksPriorityChain so the CLI stops keeping its
own copies of both, and unexport externalCandidate, which nothing outside the
package consumes.

* refactor(cli): drop the artwork command's duplicated state and formatting

Reuse artwork.RecheckKinds and artwork.WalksPriorityChain, extract
newTabWriter and externalEstimate, fold reprocessSelectsAll into
selectedKinds, and derive the queue total and the walks-chain flag instead of
carrying them in the report structs.

* test(persistence): drop two artwork-queue specs that cannot fail

One seeded hash and source together and then asserted the two counts agree,
so its setup guaranteed the result; the other repeated the count-does-not-
enqueue property already covered by the CountBySource spec.

* refactor(artwork): rename Resolver to TracingResolver for clarity

* fix(cli): count playlists in the artwork reprocess external estimate

The estimate used WalksPriorityChain, which is true only for artist and album,
so a playlist-only reprocess reported "External lookups: none" and the
confirmation prompt dropped the external-cost warning. Playlists do reach the
network: through the m3u ExternalImageURL fetch when EnableM3UExternalAlbumArt
is on, and — verified by test — through the generated grid, whose tiles resolve
album art via the full album priority chain.

Adds artwork.MayFetchExternal, a config-aware predicate for "can this kind's
resolver reach the network", and uses it for the estimate. WalksPriorityChain
keeps its separate job of deciding whether explain prints a chain block.

* fix(cli): estimate artwork reprocess external lookups per agent, not per item

The reprocess prompt billed one external lookup per externally-capable item.
fetchArtistImage/fetchAlbumImage try every enabled image agent and stop early
only on a hit, and resolvePlaylist can fetch the m3u image and then resolve up
to four sampled albums for the grid, each walking the album agents again. The
number the operator confirmed could understate real provider traffic several
fold, in the prompt whose whole job is to stop a provider flood.

ExternalLookupsPerItem now multiplies by the visible image-agent count and adds
the playlist grid factor. It stays a floor: the CLI never calls Manager.Start(),
so the plugin registry is empty and plugin-provided agents are dropped by
getEnabledAgentNames. On an install with 5 agents of which 3 are plugins the
count is well under the truth, so the wording is now "at least N" rather than
"up to N" — a zero visible count still bills one lookup for the same reason.

Fixing the plugin visibility is out of scope: Manager.Start() needs a Subsonic
router and writes to the DB via syncPlugins, breaking this command group's
read-only guarantee.

* fix(cli): state the artwork reprocess estimate as an estimate, not a bound

Neither bound is true. A ceiling is false because plugin agents are invisible to
a CLI that never starts the plugin manager, and a floor is false because a local
hit ends the walk before any agent is asked and a hit on the first agent skips
the rest. "at least N" traded one wrong claim for another.

The line now names its blind spots instead:

  External lookups: ~340 estimated (plugin agents not counted; local hits may
  need fewer).

The same line is reused in the confirmation prompt, and the zero case still
reads "External lookups: none." with the prompt dropping the clause entirely.
The count itself is unchanged.

* fix(cli): account for every configured agent in artwork explain

The Agents: line printed the raw config while the Chain only showed the agents the CLI could
construct, with nothing explaining the gap: plugin agents are never registered in a CLI that does
not start the plugin manager, and a built-in without credentials returns nil. Three of five agents
could vanish, including ones ranked above the one shown.

Also treat a live external error before the winning hit like the already-handled would-try case:
the resolver serves such a hit provisionally and retries later, so the verdict is indeterminate.

The Result line is still not qualified when an unavailable agent might have won; that needs agent
ranking, and is left to the follow-up that makes the CLI load plugin agents for real.

* fix(cli): do not call an external artwork win indeterminate

explainResult qualified the verdict whenever an external OutcomeError
appeared before the winning hit. When a later external agent returns an
image, fetchArtistImage/fetchAlbumImage discard the earlier error, so
extError is false: the worker settles the item and schedules no retry.
Telling the operator it may resolve differently on a retry was wrong.

The warning is only correct when a lower-priority local source won while
an external error was recorded, which is the case that carries extError.

* fix(cli): accept --source absent when nothing is currently absent

validateSources checks the requested sources against the ones item_artwork
actually uses, to catch a typo. The reserved empty source (spelled 'absent' on
the CLI) is a valid filter even when it matches nothing, so a scheduled
'artwork reprocess --source absent --yes' stopped working the moment the
library finished resolving. Treat it as intrinsically valid and let the
existing zero-match path report it.

* feat(artwork): explain disc and media file artwork from the CLI

`artwork explain` rejected `dc` and `mf` because it validated against RecheckKinds,
the list of kinds the backfill revisits. Those are different questions: a kind with no
recheck path still has artwork someone can report as wrong.

Disc artwork now walks DiscArtPriority under a trace, so explain reports which entry won
and why the others lost, including entries that map to no source at all (external is
unsupported, a disc with no subtitle, an album folder with no images). Media file artwork
traces its single embedded candidate, separating "EnableMediaFileCoverArt is off" from
"the track has no embedded art" — stored state cannot tell those apart.

Each command now validates against the kinds it can actually serve: explain takes all six,
refresh takes artwork.RefreshableKinds (which nativeapi now shares instead of keeping its
own copy), reprocess still takes RecheckKinds. Disc artwork stays out of refresh: the
worker cannot resolve it, so the queue row would be rejected on every drain.

WalksPriorityChain becomes Explainable, and ResolveArtist/ResolveAlbum collapse into
Resolve(kind, id).

* refactor(artwork): one disc-artwork walk for serving and explain

resolveDisc duplicated the loop selectImageReader already ran: try each source in
priority order, take the first that yields an image. The serving path and the CLI
diverged on two details as a result — only selectImageReader checked ctx between
candidates and logged each attempt.

Both now call discArtworkReader.selectImage, which takes the chainState the CLI already
uses for the other kinds. The serving path passes an untraced one, whose nil trace makes
recording a no-op. selectImageReader had no other caller and is gone.

The disc tests move from fromDiscArtPriority to discCandidates, so they assert the skip
reason for an entry that maps to no source rather than that it silently vanished, and
cancellation mid-walk is now covered.

* fix(artwork): reject a nil reader in the resize cache instead of panicking

resizedItem.Reader closes what open() hands back, so an open() that reports "no image"
as (nil, nil) rather than an error takes the request down with a nil-pointer panic. Every
caller returns an error today, and no test covered it: the resolution e2e harness stubs
the resize reader out entirely, so no e2e path reaches this code at all.

Guard it and cover Reader directly.

* refactor(artwork): move the keeps-state fact into core, drop a redundant guard

keepsArtworkState lived in package cmd and re-derived by hand what RefreshableKinds
already encodes: the same five-of-six kinds. It is now artwork.KeepsState, beside the
list, with a test pinning the two together — nothing else stopped them drifting, and a
drift would have explain report stored state for a kind that keeps none.

serveDisc's closure also hand-rolled a nil-reader error that both consumers of open()
now produce themselves: serveSource for a full-size request, resizedItem.Reader for a
resized one.

* fix(artwork): route disc candidates through the shared resolvers

openCandidate ran its own source loop and threw the error away, so a disc track that
exists but cannot be parsed traced as "miss" — indistinguishable from a track with no
embedded art. fromTag and fromFFmpegTag already report that case as errSourceUnreadable;
only this loop was discarding it. Telling those two apart is what the trace is for.

Candidates now carry a resolve func instead of raw sources: embedded goes to
resolveEmbedded, and the folder-backed entries to resolveFolderSource, extracted from
resolveFolderFile so both callers classify an unopenable file the same way. openCandidate
and its absolute-path special case go away with it.

Disc's own fromExternalFile and fromDiscSubtitle still swallow open errors, so folder
candidates cannot report unreadable yet; that is a change to their error contracts.

* fix(artwork): report an unreadable local candidate as indeterminate

processor.acquire treats resolution.localError exactly as it treats extError: a fault is
not a definitive "no image", so it retries instead of settling absent. explainResult
qualified only the external case, so a chain that ended on an unreadable local candidate
printed "not resolved" — the one verdict that says the walk was conclusive.

The qualification belongs only to the unresolved branch. chainState.try stamps extErr onto
a hit and deliberately drops localErr, so an unreadable step followed by a hit is settled
as found and must not carry a warning; a test pins that.

Found by Codex on 5f65d7cfa.
2026-08-14 21:07:56 -04:00
Deluan Quintão
b617a878b9
feat(insights): report the app store or hosting platform via ND_PLATFORM (#5956)
* feat(insights): report the app store or hosting platform via ND_PLATFORM

Insights had no way to tell where an instance is deployed. The existing `os.package` field is written only by our own packagers and holds just `deb`, `rpm` or `msi`, so it answers "which installer", not "which platform". Overloading it would mix two unrelated dimensions in the same field.

This adds a separate top-level `platform` field, self-declared by the deployer through the `ND_PLATFORM` environment variable. App stores and hosting providers (ZimaOS, PikaPods, TrueNAS, Unraid, and others) generally deploy our container image unmodified and can only inject environment variables, so an env var is the one marker they can all set. It is deliberately not a config option: it is a packager marker, not something users should tune, and it stays out of the config surface.

Both values are now whitespace-trimmed. The msi packager writes the file with `echo`, so `os.package` has been arriving as `"msi\n"` and sorting separately from `"msi"` in any aggregation.

* test(insights): isolate hostingPlatform specs from an inherited ND_PLATFORM

The spec asserting an empty result read the real environment, so it failed on any machine that already had ND_PLATFORM set. Unset it per-spec, using Setenv first so Ginkgo restores the original value on cleanup.
2026-08-14 13:46:52 -04:00
Deluan Quintão
95615bcb18
fix(artwork): serve images whose format has no registered decoder (#5952)
* fix(artwork): serve images whose format has no registered decoder

The new pipeline derives dimensions, mime and the placeholder hashes at
resolution time, so a decode became a precondition for recording artwork at
all. An image in a format Go has no decoder for therefore failed acquisition,
retried until the 12h budget ran out, and then settled as absent, serving a
placeholder from that point on. The old pipeline decoded only to resize and
fell back to the original bytes when that failed, so these covers used to work.

A local file is picked by matching an image extension, so bytes it cannot
decode are most likely a codec we lack: image.ErrFormat on a folder, upload or
embedded source now yields an Artwork row carrying just the hash and mime, and
the bytes stay servable. An external response carries no such guarantee, so it
still fails and retries rather than pinning a non-image body as a cover. A
corrupt image of a known format and an over-cap declared size still fail, so
the decompression bomb guard is unchanged. Absent rows recorded by earlier
builds are re-resolved by the existing stale-absent recheck within a day, so
no epoch bump is needed to repair them.

Reusing a stored image now re-decodes when it carries no dimensions, so a
row recorded while a decoder was missing can still be upgraded later.

Registers jxl, heic and heif in mime_types.yaml: image detection resolves the
extension through the host MIME table, and the Alpine release image ships no
/etc/mime.types, so those covers were never recorded in folder.ImageFiles
there and never reached the pipeline at all.

* fix(artwork): never record empty bytes as artwork

image.DecodeConfig returns image.ErrFormat for an empty payload just as it
does for a codec with no registered decoder, so a zero-byte cover file was
recorded as found artwork and served as an empty response instead of falling
back to the placeholder. A truncated image of a known format already fails
with unexpected EOF rather than ErrFormat, so only the empty case needed the
guard.
2026-08-14 09:43:13 -04:00
Deluan Quintão
59a4ed8e79
fix(plugins): stop reporting plugin call failures as not-found (#5953)
* fix(plugins): stop reporting plugin call failures as not-found

MetadataAgent joined agents.ErrNotFound onto every failed plugin call, so a
transport fault was indistinguishable from a definitive miss. The artwork
circuit breaker treats a not-found as a successful, definitive answer and
resets its failure counter, so it never opened for a failing plugin and kept
calling it on every request. Observed with the apple-music plugin against
prod: ~900 iTunes 429s in 27 minutes with the breaker never tripping.

Return the underlying error instead. The genuine empty-result branches still
return agents.ErrNotFound, and agent fallback is unaffected because
callAgentMethod/callAgentSliceMethod continue on any error, not only on
ErrNotFound.

* test(plugins): fold duplicate metadata agent error specs into one table

The error-handling container drove all 11 MetadataAgent methods twice: once
to assert the message, once to assert the failure is not an ErrNotFound. The
argument lists were identical, so each method cost two WASM instantiations for
one method's worth of coverage, and a new capability had to be registered in
two places to stay guarded.

Fold both assertions into a single DescribeTable, document the ErrNotFound
contract at the sentinel where agent implementers will read it, and collapse
breaker.record's hand-inlined predicate onto isTransientExternal, which it
already duplicated by hand with a keep-in-sync comment.

* fix(plugins): keep an unimplemented plugin method a definitive miss

Returning the raw plugin error made errNotImplemented and errFunctionNotFound
look like provider faults. Every MetadataAgent satisfies ArtistImageRetriever
and AlbumImageRetriever regardless of what the plugin actually exports, so
artwork resolution calls those stubs on a partially-implemented plugin: each
call counted toward the artwork circuit breaker and kept the item in the retry
queue instead of settling it absent.

Map both sentinels back onto agents.ErrNotFound, joined so the underlying
reason survives for diagnostics, and leave real call failures untouched. This
matches what ScrobblerPlugin already does for the same two sentinels.

The partial-implementation specs asserted only MatchError(errNotImplemented),
which the previous errors.Join satisfied incidentally, so nothing caught the
lost not-found semantics. They now assert both and are folded into one table.

* test(plugins): cover the missing-export arm of agentErr

The partial-metadata-agent fixture registers through the Go PDK, which exports
every method and answers with the not-implemented code, so no fixture reaches
the errFunctionNotFound branch. Building one would mean hand-writing Extism
exports to deliberately omit a function, which tests the manager's function
lookup rather than the mapping this PR added.

Cover agentErr directly instead: both sentinels classify as a definitive miss,
a call failure and a non-zero exit stay faults, and the underlying reason
survives in every case.

* fix(artwork): stop counting a cancelled run against the circuit breaker

callPluginFunction returns ctx.Err() when a plugin call is cancelled, and that
reached breaker.record as an ordinary error, so cancellations counted toward
the five consecutive failures that open a gate. A cancellation says nothing
about the provider, so it now neither counts nor clears the failure run.

Deliberately scoped to breaker.record rather than isTransientExternal: the
latter also drives whether the queue item is rescheduled, and a cancelled item
must still be retried rather than settling absent. context.DeadlineExceeded is
left counting as a fault, since a provider that blows the budget is one worth
backing off from.

Reachable today only at shutdown, where the in-memory breaker state is
discarded anyway. It becomes live the moment Worker.gate is used on a
request-scoped context, which is why it is worth closing now.
2026-08-13 22:56:09 -04:00
Deluan Quintão
757ca783d3
fix(instant-mix): top short mixes up instead of returning what the first source found (#5951)
* fix(instant-mix): top short mixes up instead of returning what the first source found

SimilarSongs returned the first non-empty source's tracks, however few. For a
thinly-represented artist that meant a 3-track mix no matter the requested count:
the artist agent found nothing, the similar-artists fallback matched 3 library
tracks, and `len(res) > 0` kept seed-track sampling from ever running.

Clients treat that as a failed mix and retry with a bigger limit forever. Finamp
cycles limit 34 through 472 and starts over, ~1 request every 2s indefinitely,
each one re-hitting Last.fm, Deezer and AudioMuse.

Sources are now chained rather than raced: each one tops the mix up until it
holds count tracks, so the agent's picks, the similar-artists fallback and
seed-track sampling all contribute instead of the first one winning outright.

* refactor(external): move similar-songs code to its own file

provider.go held two distinct concerns: artist/album external metadata and the
similar-songs mix pipeline. The mix code was already one contiguous block, and
maxSeeds, maxSimilarSongs and dedupByID were used by nothing else.

Moved SimilarSongs and its helpers to provider_similarsongs.go, matching the
existing provider_similarsongs_test.go. Pure code motion: the moved block is
byte-for-byte unchanged and provider.go has no additions, only deletions.

* fix(instant-mix): dedup before deciding a mix is full

topUp measured res before deduplicating it. Matcher.MatchSongs deliberately
re-emits a library track when the same input song repeats, and the similar-artists
fallback can reach one track through several artists, so len(res) could equal count
while holding fewer unique tracks. That returned a mix with duplicates in it and
stopped the top-up early; the caller then deduplicated and handed back a short mix,
which is the client retry loop this branch set out to fix.

Deduplicate first, so the length check counts what the client will actually receive.

* perf(instant-mix): skip a fallback once the mix is already full

The artist path nested one topUp inside another, so the inner one measured only
similarSongsFallback's own result against the full count. With 49 agent matches and
one fallback match for count=50 the mix was already full, yet seed-track sampling
still ran and fired up to five GetSimilarSongsByTrack calls whose results the outer
topUp then truncated away.

topUp now takes the sources as a variadic list and re-checks the accumulated mix
before each one, so a later, costlier source only runs while the mix is still short.
That also flattens the artist case: the agent, the similar-artists fallback and
seed-track sampling are now three peers in one chain instead of two nested calls.

* fix(instant-mix): count distinct tracks when picking the fallback mix

similarSongsFallback stopped after count picks from the weighted chooser, but a
track can sit in that chooser once per artist listing it in their top songs, and
Pick removes the entry it returns. Repeats therefore consumed pick slots and left
unique candidates stranded, so the batch could come back short of count. On the
track path this is the only source, so that short mix reached the client and kept
the retry loop alive.

Track the ids already picked and keep drawing until count distinct tracks are held
or the chooser is empty.

* fix(instant-mix): match the whole agent response before trimming

MatchSongs was capped at count, and it re-emits a track when the same song repeats,
so [A, A, B] with count=2 returned [A, A] and never reached B. topUp then shrank
that to [A] and, with an empty or overlapping fallback, the mix stayed short even
though B had been available all along. seedMix already matched its full merged set
for this reason; mixFromAgent now does the same and leaves the trim to topUp.

Also drop the capacity hint on the picked-ids map. It was sized from the caller's
count, which CodeQL flags as an allocation sized by user input (go/uncontrolled-
allocation-size). SimilarSongs clamps count to maxSimilarSongs long before this
point, so the hint bought nothing worth the alert.

* refactor(instant-mix): tidy the mix chain and its specs

Quality pass over the new code, no behaviour change:

- topUp: drop the first-vs-last error bookkeeping (the value is only read when the
  mix is empty, so the distinction is unobservable) and the redundant nil guard
  (dedupByID returns nil for an empty result, so both branches already agreed).
- mixFromAgent: assign through the if-scoped err instead of a second error name.
- Hoist the similar-artists fallback closure written verbatim in two switch arms.
- Use map[string]struct{} in the pick loop, matching dedupByID in the same file.
- Trim three comments back within budget; two restated the line below them and one
  carried commit-message rationale.
- Tests: add an ids() helper for the ID assertion repeated seven times, and fold
  the track-entity stub block copied into three specs into stubTrackEntity. The
  block hard-coded .Twice() on GetEntityByID, which pinned an implementation
  detail no spec asserts.

* revert(instant-mix): inline the similar-artists fallback closure again

Hoisting it to a shared artistFallback var moved the call away from the arm that
uses it and saved nothing: each arm reads better spelling out its own sources.
2026-08-13 18:50:34 -04:00
Deluan Quintão
6c3e7e268b
feat(instant-mix): support album, playlist and genre sources (#5948)
* feat(agents): local agent genre-hint similar songs fallback

* feat(external): playlist instant mix via seed-track sampling

* test(external): cover playlist mix never-empty fallback and maxSeeds cap

Adds coverage for the empty-match seed fallback and the maxSeeds
call cap on GetSimilarSongsByTrack, per code review finding.

* feat(external): genre instant mix via seed-track sampling

* feat(external): album instant mix falls back to AudioMuse track similarity

* feat(external): artist instant mix falls back to seed-track sampling

* fix(jellyfin): route genre seeds through instant mix instead of empty

* feat(jellyfin): add /Albums/{id}/Similar route for albumMix radio

* perf(external): bound playlist seed sampling to a random N

samplePlaylistTracks loaded an entire playlist's joined rows just to keep
5 random seeds; push the bound and randomization into the query instead,
matching the other samplers (GetRandom/GetAllByTags with Max).

Fixing this surfaced a real bug: resetSeededRandom's SEEDEDRAND rewrite
assumed every table's id is TEXT, but playlist_tracks.id is an INTEGER
position, so the random sort silently dropped every row. Cast the id to
TEXT before hashing (no-op for the other, TEXT-id tables).

Also trims a changelog-flavored comment and a duplicated rationale in
server/jellyfin/similar_test.go.

* refactor(external): parallelize seed mix and dedup mix helpers

Run the up-to-5 per-seed GetSimilarSongsByTrack calls concurrently (errgroup),
route the four container cases through a shared seedMix helper, flatten the
genre lookup, and sample playlist seeds without forcing a smart-playlist
rebuild. Share the media-file->Song mapping in the local agent.

* perf(agents): use the indexed genre filter for local similarity

Replace GetAllByTags (a json_tree scan of every media_file row) with the
media_file_tags semi-join from #5940, deriving the seed's genre tag ids
locally since they hash from (name, value).

Also carry the library id and the recording MBID on the returned songs:
the matcher resolves by id first and looks up mbz_recording_id, so the
release-track id it got before matched nothing and the local fallback
silently returned no songs.

* refactor: drop redundant MBID and fold mixFromSeeds into seedMix

The local agent returns library tracks, so the id alone resolves them in the
matcher's first phase; the MBID was never consulted. mixFromSeeds had no
caller other than seedMix.

* docs: trim redundant comments

* fix(jellyfin): adopt the GUID id codec in the merged similar routes

getSimilarAlbums still used resolveItemID/DecodeID, which #5942 replaced with
itemIDParam; its tests passed raw ids that the strict codec now rejects.

* fix(external): guard non-positive counts and blend every seed

A negative Subsonic count reached matched[:count] and panicked. The matcher
also keeps input order and stops at count, so seed-grouped results let the
first seed fill the whole mix; interleaving gives every seed a share.

Drops the duplicate playlist-track mock in favour of tests.MockPlaylistTrackRepo,
which pages like the real repository and records the query options.

* fix(external): refresh smart playlists before sampling seeds

A smart playlist materializes no playlist_tracks until it is evaluated, so
sampling without the refresh mixed an empty seed set. The refresh is a no-op
for regular playlists, inside the refresh delay, and for non-owners.

* fix(external): skip missing tracks and a nil playlist-track repo when sampling

Tracks() logs and returns a nil repository when its own lookup fails, so the
chained GetAll panicked. Seeds can also reach the mix verbatim when the agents
find nothing, so a missing file would surface as an unplayable entry.

* fix(jellyfin): never report the seed album as its own similar album

The sampled-seed fallback returns the album's own tracks, which similarAlbums
mapped straight back to the requested album, often as the only result.

* test(agents): assert the genre predicate instead of relying on the mock

MockMediaFileRepo ignores QueryOptions.Filters, so the spec passed even with
no genre filter at all. It now checks the generated predicate carries the
seed's own tag id, the indexed join and the missing exclusion.

* fix(external): clamp the requested count before it becomes a query limit

Subsonic passes the client's count through unbounded. At MaxInt64 the local
agent's count+1 overflows negative, and GetRandom omits the SQL limit unless
Max is positive, so one request would hydrate every matching track. 500 is
what the widest caller (similarAlbums, limit*5) legitimately asks for.

* fix(external): deduplicate playlist seeds by media file

A playlist can hold the same file at several positions, so sampling its rows
could seed the mix twice: a wasted agent call, and a duplicate track whenever
the seed fallback kicks in.

* fix(external): drop tracks two seeds both recommend

The matcher re-emits a track when two inputs are identical, so overlapping
recommendations took several slots in the mix. Match the whole merged set and
dedup before trimming. Playlist sampling now over-fetches before its own
dedup, so repeated positions cannot collapse the seed count.

* test(external): make the seed-blend assertion independent of the shuffle

It matched four tracks and kept two at random, so both could come from the
first seed once in six runs. Keeping three of the four makes a seed-two track
unavoidable.

* fix(external): seed artist mixes from every credited role

media_file.artist_id is the deprecated primary artist, so an artist credited
only on the album, as on compilations, sampled no seeds at all. Use the same
participant filter the artist listings use.

* refactor(external): drop the now-vestigial seed interleaving

Matching the whole merged set removed the early truncation the interleave
guarded against, and the shuffle before the trim makes input order irrelevant.
Its comment described the old behaviour.

* test(agents): give the id-mapping fixture a matching genre

The related track carried no genre, so the real query would never return it;
the spec only passed because the mock ignores QueryOptions.Filters.

* test(agents): drop the MBID from the id-mapping fixture

Local agent candidates are non-missing library rows, so the matcher always
resolves them in its id phase and never reads the MBID. The field guarded a
regression that could not change behaviour.

* test(agents): remove unnecessary comment about MBID in GetArtistTopSongs test

* fix(jellyfin): only let a not-found entity fall through in getInstantMix

Discarding the error conflated a genre id, which never resolves, with a real
lookup failure, which then made a provider call that fails the same way.

* test: pin the invariants the specs only appeared to cover

The missing filter was asserted by substring, so flipping it to true passed
everywhere, including the spec named for it. Matching the whole merged set,
the local agent's over-fetch, and its no-genres early return had no coverage
at all; each is now pinned by a spec that fails when the code is broken.

* test: make the remaining specs say what they actually guard

The playlist-track spec named a sort whitelist it does not exercise; it guards
the integer-id CAST, so it now asserts no rows are dropped. The maxSeeds cap
passed with either bound removed, and the over-fetch was pinned by its literal
value rather than the duplicate positions it exists for. Also drops setup the
count guard returns before reaching.

* fix(external): fall back when the agent's picks are not in this library

A non-empty answer whose songs are all absent locally matched nothing and was
returned as-is, so the mix came back empty with sampleable source tracks
sitting right there.

* refactor(external): name the agent-then-fallback flow once

Each entity case repeated the same error and emptiness plumbing around the
matcher. mixFromAgent states it once and each case supplies only what differs:
how to ask, and what to do when the answer is unusable.
2026-08-12 23:02:13 -04:00
Deluan Quintão
752b38609c
feat(artist): add Share and Download actions to the Artist detail page (#5944)
* feat(ui): add Share button to artist detail page

* feat(ui): add Download button to artist detail page

* fix(ui): scope artist share/download to album-artist content

Gate the artist Share/Download actions on album-artist stats and show the
album-artist size, since ZipArtist and the share query only cover
album_artist_id songs. Previously the total (role-inclusive) size was shown
and guest-only artists could produce an empty archive. Applies to the artist
toolbar, the shared context menu, and the download dialog title.

* fix: match artist download/share to album-artist participation

ZipArtist and the artist share query filtered the deprecated album_artist_id
column, which only stores the first album artist of a track. Secondary
album-artists (co-credited but not first) got an empty download/share even
though the UI offered it. Filter by the album-artist role participation
instead, matching the artist's album-artist stats used to gate the actions.
Also cover the artist-specific size branch of the download dialog.

* fix(share): scope artist shares to the owner's libraries

The artist share query broadened to album-artist participation, which could
pull a secondary album artist's tracks from libraries the (non-admin) share
owner cannot access into the public share. Load the artist share as the owner
so their library access is applied, mirroring how playlist shares already work.
Adds a repository test covering co-album-artist inclusion and library scoping.

* test(share): assert album participation branch of artist shares

Link the co-album-artist fixtures to albums and assert share.Albums (used by
Subsonic getShares) includes the accessible album and excludes the one in a
library the owner cannot access, so the album participation + scoping branch
is covered too.

* fix: exclude missing files from artist download/share actions

An artist's stats still count files that went missing, so the toolbar/context
menu could offer Download/Share for an artist whose files are all gone, while
the share query (missing=false) returns nothing and downloads open dead paths.
Hide the actions when the artist is missing and exclude missing files from
ZipArtist, matching the share semantics.

* refactor: dedupe artist download-size and share-owner lookups

Extract the 'album-artist download size (or none when missing)' rule into a
single artistDownloadSize() helper shared by the toolbar, context menu, and
download dialog, and factor the duplicated share-owner context lookup into a
shareRepository.ownerContext() method used by both the artist and playlist
share cases.

* refactor(ui): move artistDownloadSize helper to common

utils is for domain-agnostic, potentially portable code; this helper is
Navidrome-specific (artist stats shape), so it belongs in common. Consumers
import it directly from common/artist to avoid pulling in the common barrel.
2026-08-12 11:59:56 -04:00
Deluan
8978c7b9fa Revert "feat(jellyfin): send a synthetic placeholder blurhash for unresolved artwork (#5941)"
This reverts commit 036c9cab9671505c83fce6523f55d97b152b3b32.
2026-08-12 11:46:23 -04:00
Deluan Quintão
036c9cab96
feat(jellyfin): send a synthetic placeholder blurhash for unresolved artwork (#5941)
* refactor(artwork): let callers pin the blurhash component counts

* feat(artwork): synthesize a unique placeholder blurhash from a seed

* fix(artwork): base the synthetic-hash no-collision guarantee on the prefix, not length

The prior comment and test claimed a synthetic value could never collide with a
real one because it's always shorter. That's false: components() targets ~16
tiles by scaling one axis down as the other hits the 9 cap, so an extreme
aspect ratio (e.g. 10x200) collapses to 1x9 = 9 components, which encodes to
the same 22 characters as a 3x3 synthetic hash. The old test only exercised a
square 64x64 gradient, so it never caught this.

The real guarantee is structural, not length-based: the first character encodes
shape as (xComp-1)+(yComp-1)*9, and components() derives xf*yf = 16 exactly
before flooring/capping (xf = sqrt(16w/h), yf = xf*h/w = sqrt(16h/w), so
xf*yf = sqrt(256) = 16). Two factors both in [2,3) can't multiply to 16, so
Encode can never derive 3x3 - the synthetic prefix 'K' is structurally
exclusive to Synthetic. Replaced the length-based test with one that sweeps
extreme aspect ratios and asserts no real encode ever produces prefix 'K',
alongside the assertion that Synthetic always does.

* feat(artwork): tint a synthetic blurhash from a base colour

Parses baseColor into HSL and clamps saturation/lightness so the tint
stays muted; per-cell hashing (unchanged) is what keeps a shared tint
across an album's tracks from colliding, as the new 1M-seed spec
proves under a single fixed colour.

* fix(artwork): trim over-long comment in synthetic blurhash test

Review flagged the collision spec's comment for exceeding the 2-line
budget; the Finamp rationale it restated already lives in the design
doc and commit history.

* feat(jellyfin): send a synthetic blurhash for unresolved artwork

Clients render nothing where a placeholder belongs when ImageBlurHashes
is omitted for pending artwork. primaryImage now synthesizes a value
(seeded on the tag, so a cover swap re-keys it) whenever a tag is
present but no blurhash has been computed yet. Known-absent artwork
(ImageAbsent) is unaffected: it still emits neither tag nor blurhash,
since GetOrPlaceholder would otherwise pin a shared placeholder under a
distinct cache key for a year.

* fix(jellyfin): avoid computing a synthetic blurhash when a real one exists

cmp.Or evaluates both arguments before choosing between them, so
blurhash.Synthetic ran (and was discarded) on every call even when
img.BlurHash was already set. That's the common case in production:
artwork_repository.go populates BlurHash from persisted values once a
scan resolves it, so a healthy library paid the synthesis cost (xxh3
hashing, HSL conversion, image alloc, DCT encode) on every mapped item
for a value it never used. Branch on emptiness first instead.

* feat(jellyfin): tint a pending track's placeholder with its album's colour

primaryImage never reaches the embeddedArtPending branch of
SongToBaseItem, since there is no resolved image yet to feed it. Seed
the synthetic blurhash on mf.ID (so the value stays unique and the
client still issues the read-through request) but tint it with the
album's DominantColor, which is already hydrated on MediaFile at no
extra cost.

* style(artwork): trim synthetic blurhash comments to the budget

* docs(jellyfin): fix stale blurhash README bullet + two review nits

The "Blurhashes are synthetic" bullet under Known limitations described
dto/blurhash.go, which was deleted when the real core/artwork-computed
blurhash + synthetic-fallback pipeline landed; every claim in it was
false. Replaced it with an accurate paragraph in the Images section,
since the described behaviour is now the finished design, not a gap.

Also: fix a doc/body comment mismatch in blurhash.go (component counts
are 2..9, not 1..9), and deduplicate the inline DC-extraction logic in
synthetic_test.go by reusing the existing dcOf helper.

* refactor(artwork): slice the synthetic cell jitter on byte boundaries

The three perturbations came off one hash with mismatched masks and shifts
(0xFF at 0, 0x3F at 8, 0x3F at 14), so a reader had to do the arithmetic to
confirm the fields did not overlap. Only 20 of the 64 bits were in use either
way, so the narrower fields bought nothing.

Uniform byte slices at 0/8/16 are non-overlapping by inspection and give each
field the full 8 bits. Both 1,000,000-seed collision specs still measure
1,000,000 distinct values. Also drops the local `n` alias, which was a second
name for synthComponents inside a 15-line function.

* docs(jellyfin): fix the blurhash paragraph's opening sentence

It opened with "follow the same principle", pointing back at the preceding
paragraph on admin-context artwork resolution — an unrelated subject, so the
reader looks for a connection that is not there.

* fix(artwork): render the synthetic grid larger than its component count

The 3x3 cell grid was handed straight to the encoder as a 3x3 image, so the
source had exactly as many samples as basis functions. Blurhash normalises its
coefficients by 1/(w*h) and 2/(w*h), which assumes many samples per component,
so the AC terms came out far too large. At the bottom-right corner the x and y
bases are both [1, -0.5, -0.5], everything lines up negative, and the result
clamped to black — a dark blob on every synthetic placeholder.

Rendering the same nine colours bilinearly at 8x8 first removes it: measured
over three seeds, the darkest corner goes from 13 to 74 and the darkest pixel
from 1 to 63. 8px is the smallest size that clears the artefact; 12 and 16 are
visually indistinguishable and cost 1.7x and 2.7x more.

The interpolation is hand-rolled rather than x/image's scaler, which allocated
528 times per call against 14 for this. Both 1,000,000-seed collision specs
still measure 1,000,000 distinct values.

* refactor(artwork): tidy the synthetic upscale helpers

cellWeight nudged its upper bound with a 1e-9 epsilon so int() could never
land on the last cell. Clamping the coordinate and then the index says the
same thing without a magic constant, and makes the clamp-don't-extrapolate
intent explicit — edge pixels map outside the cell centres, so the fraction
would otherwise run past 1.

The grid type is spelled once as colorGrid rather than repeated in the local
and the upscale signature, and encodeAt's doc now states the source-size
contract that Synthetic depends on, so the next caller sees it at the
function rather than only in synthetic.go.

Output is unchanged: all seven sample hashes match byte for byte.

* perf(artwork): make the synthetic upscale separable

Both axes are square and constant-sized, so the per-pixel cell index and
weight were the same 8 values recomputed 64 times per call. They are now
built once by sync.OnceValue, matching the srgbToLinearTable pattern.

The interpolation is also separable: stretching each of the 3 grid rows
horizontally once and then blending rows vertically does 264 lerps where
the per-pixel form did 576.

upscale drops from 347ns to 260ns, Synthetic from 1780ns to 1669ns. Output
is byte-identical across all seven sample hashes — same operations in the
same order, only hoisted.

* refactor(artwork): let a caller supply the cosine basis

encodeAt built its cosine tables inline, so Synthetic rebuilt bit-identical
ones on every call — its shape is always 3 components over 8 pixels. Splitting
the table construction into cosBasis and the encoder proper into encodePixels
lets Synthetic build the basis once via sync.OnceValue, and leaves encodeAt's
signature and behaviour untouched.

Synthetic drops from 14 allocations to 6 (1669ns to 1508ns). The time saving
is small and this path only runs while artwork is still unresolved; the
allocation cut is the point, alongside a shorter encodeAt.

Every hash is unchanged: nine real Encode outputs spanning square, 10x200,
200x10, 1x50 and a real JPEG, plus all seven synthetic samples, all byte for
byte identical before and after.
2026-08-11 18:34:27 -04:00
Deluan Quintão
9e95b19a4f
feat(artwork): make the artwork image size cap configurable (#5931)
* feat(artwork): make the artwork image size cap configurable

Replace the hardcoded 20MB cap on resolved image reads with a new
MaxImageSize config option. Load floors it at MaxImageUploadSize so an
accepted upload can never be too large for the resolver to read back.

* fix(conf): reject zero-valued byte-size options at startup

ParseBytes accepts "0", but parseSize silently substitutes the default
for it, so the accepted config would differ from the effective limit.

* fix(conf): reject byte-size options that overflow int64

A raw value above math.MaxInt64 parses as a valid uint64 but wraps to a
negative int64 in parseSize, giving readCapped a non-positive LimitReader
bound so every artwork read comes back empty.
2026-08-11 10:42:39 -04:00
Deluan Quintão
7736bbb545
fix(cache): write the completion marker before closing the cache writer (#5927)
* fix(cache): write the completion marker before closing the cache writer

Readers of an in-progress cache write see EOF the moment the writer closes,
but the .complete marker was created after the close, on the background
goroutine — so a fully-read stream did not mean the cache was done touching
disk. The new artwork precache spec ends right at EOF, and its
GinkgoT().TempDir() cleanup raced the marker creation, failing the Windows CI
job with 'unlinkat ...: The directory is not empty' (the race also reproduces
on macOS, 2 of 3 runs, with the tightened test).

Writing the marker after a clean copy but before Close makes reader-EOF imply
every on-disk write for the entry is finished. A failed writer Close still
invalidates the entry, which removes both the marker and the data file. The
existing marker test now asserts the marker exists immediately at EOF instead
of Eventually.

* fix(artwork): never dispatch queue items after the drain context is cancelled

The 10x Windows stress run for the previous commit surfaced a second flake in
the same package: 'leaves undispatched items queued when cancelled mid-batch'
lost row alc7 in 4 of 10 runs. In drain, when a semaphore slot is free and the
context is already cancelled, both cases of the blocking select are ready and
Go picks one at random — so a cancelled drain could still dispatch items. A
non-blocking Done check before the select gives cancellation priority.

The race was invisible on Linux/macOS only by accident: the spec seeded the
album repo with a single album (each SetData overwrote the last), so only the
final row (alc7) resolved to absent and got deleted when dispatched; the
others fell on the retry path and survived. Nanosecond enqueue timestamps
made alc0 always first out of the mock dequeue, masking the race, while
Windows' coarse clock ties the timestamps and randomizes the order. The spec
now seeds all eight albums, which made the race reproduce locally on the
first try (row alc0) and now guards the fix on every platform.

* test: give cache-init waits a 10s timeout for loaded CI runners

A 10x parallel Windows stress run timed out one artwork spec in BeforeEach:
the FileCache init goroutine (mkdir + reload walk) took over Gomega's default
1s Eventually timeout under shared-runner disk contention. Bump the three
identical init waits (two artwork suites and the utils/cache helper) to 10s.

* test(scanner): widen watcher debounce margins for loaded CI runners

The watcher debouncing spec asserts 'no scan yet' inside 20ms Consistently
windows while the debounce wait was only 50ms — a 2.5x margin that a loaded
Windows runner blows through by delaying the timer-reset notification, firing
the scan early (failed all three FlakeAttempts in a 10x stress run). Raise the
test debounce wait to 200ms (10x the observation windows) and the scan-fired
Eventually timeouts to 2s to match.

* refactor(artwork): collapse drain cancellation into a single exit path

Replace the non-blocking ctx pre-check plus duplicated select exit with one
select and a ctx.Err() check after it. Besides removing the duplication, this
closes the residual race: a cancellation landing between the two selects could
still let the blocking select randomly pick the free semaphore slot and
dispatch the item. Now a dispatch is only possible when the context was live
after slot acquisition.

* style: trim flaky-test fix comments to single lines

Compress each two-line comment added by this PR to the one line that carries
the invariant; drop the narration around it.
2026-08-10 14:10:05 -04:00
Deluan Quintão
944ca3100f
feat(artwork): new artwork pipeline with background resolution and Low Quality Image Placeholders (#5847)
* feat(artwork): add artwork, item_artwork and artwork_queue tables

* feat(artwork): add artwork models, repository interfaces and mocks

* feat(artwork): implement artwork repository

* feat(artwork): implement item_artwork repository with batched hydration

* feat(artwork): implement artwork_queue repository

* feat(artwork): add content-addressed originals store

* feat(artwork): add artwork prune (orphan cleanup)

* fix(artwork): never sweep files on transient DB errors during prune

* refactor(artwork): fold originals package into core/artwork as ImageStore

* refactor(artwork): merge item artwork state into ArtworkRepository

* fix(artwork): chunk unbounded IN clauses and restore interface docs

* refactor(artwork): apply simplify-pass cleanups

Internal item_artwork sqlRepository helper, toSQLArgs upserts, batched queue enqueue, EnqueueStaleAbsent moved to queue repo, snapshot-based prune sweep, mock/real semantics aligned.

* fix(artwork): address review findings on prune/sweep races and mock fidelity

Sweep now honors an mtime grace window (in-flight acquisitions and temp files), reacquired orphans reset the prune grace window, and the queue mock implements real stale-absent semantics.

* fix(artwork): atomic orphan deletion and timestamp semantics from review

DeleteOrphans re-checks age+references at delete time, PutItemArtwork defaults attempted_at, queue mock timestamps mirror SQL.

* fix(artwork): guard orphan file removal with the prune grace window

Duplicate ImageStore writes refresh the file mtime and Remove skips files newer than the cutoff, so overlapping acquisitions cannot lose their store files to a concurrent prune.

* fix(artwork): rewrite vanished duplicates and sweep stale mime variants

Write falls through to a real write when the liveness touch fails, and sweep retention now matches the recorded mime's extension so obsolete variants are reclaimed.

* fix(artwork): index artwork_queue in dequeue order

The previous leading retry_at range column forced a temp B-tree sort of the whole eligible set on every DequeueBatch; ordering the index by (priority DESC, enqueued_at) lets scans stop after the batch size.

* fix(artwork): honor the orphan cutoff in the repository mock

The mock's DeleteOrphans now applies createdBefore like the SQL implementation, and a new spec covers a freshly reacquired row surviving prune.

* fix(artwork): reject malformed hashes in ImageStore operations

Known-absent states carry an empty hash and malformed persisted hashes could panic path sharding or inject separators; Write/Open/Remove now return an error for anything but 16 lowercase hex chars.

* fix(artwork): mock PutImage refreshes created_at like the SQL repository

Prune specs now age fixtures directly instead of seeding stale timestamps through the upsert.

* fix(artwork): store backing-file provenance per item, not per hash

* feat(artwork): import blurhash encoder from #5797

* feat(artwork): add worker-side artwork resolvers

* fix(artwork): propagate playlist tile failures and dedupe external step

* feat(artwork): add acquisition processor

Resolves one queue item end to end: hash/dedup, decode + 128px thumbnail
blurhash, place bytes (store vs source file), and persist found/absent/
failed state for the worker (Task 4) to act on.

* style(artwork): tighten processor comments to budget

* feat(artwork): add acquisition worker service

* feat(artwork): enqueue artwork resolution from scan and CRUD paths

* feat(artwork): artwork backfill, fingerprint re-resolution and scheduled jobs

* test(artwork): leak/soak coverage and deferred assertions

* fix(artwork): propagate transient artist image errors to the worker

callGetImage swallowed all agent errors, so an agent outage surfaced as ErrNotFound and the worker settled artist artwork as a definitive absent (and reset the breaker). Add an additive ArtistImageResult path that returns the underlying agent error on transient failure while keeping ArtistImage byte-identical for existing callers; the worker's artist external step uses it via fromArtistExternalResult.

* fix(artwork): resolve full playlist source chain

resolvePlaylist only built the generated grid, dropping the uploaded-image, sidecar and ExternalImageURL sources the old reader_playlist.go chain serves. Port the full chain before the grid fallback: uploaded (upload), sidecar (folder), and ExternalImageURL routed through extGate with the same extError semantics as the other external steps. Also rewires the artist external step onto ArtistImageResult.

* fix(artwork): purge dangling queue rows and guard concurrent re-enqueues

Queue rows for deleted entities failed forever (Get -> ErrNotFound -> failed -> capped retries, unbounded). Add ArtworkQueueRepository.PurgeDangling, called from Prune next to the item_artwork purge. Separately, the found/absent path unconditionally deleted the dequeued row, erasing a concurrent scan re-enqueue; switch to DeleteIfUnchanged, which deletes only while retry_at still matches the dequeued value (verified retry_at is the column an Enqueue upsert resets).

* style(artwork): fix comment accuracy and budget; fingerprint ArtistImageFolder

Correct the inverted workerDeps.extGate comment, trim over-budget doc comments, and add conf.Server.ArtistImageFolder to the resolution fingerprint so an image-folder change re-resolves artist artwork.

* fix(artwork): treat missing local playlist cover as definitive, not transient

A playlist ExternalImageURL pointing at a local file that fails to open was
routed through extError, causing failed/48h-retry loops that burn a rate
limiter token forever instead of falling through to the generated grid.

* refactor(artwork): deduplicate purge loop, backfill table, and extGate alias

* fix(artwork): cap resolved image reads

A user-editable ExternalImageURL can point at an arbitrarily large endpoint;
a fast server could make the worker buffer hundreds of MB inside the 5s HTTP
timeout. Bound the read to a fixed 20MB cap (no config knob) via io.LimitReader
and fail the item if it is exceeded.

* fix(artwork): retry higher-priority external art after fallback hit

With CoverArtPriority="external,cover.jpg", a transient external failure
followed by a folder hit dropped the external error: the worker recorded
found and deleted the queue row, so the configured higher-priority external
art was never retried. Carry extError onto the fallback resolution and add
an outcomeFoundStale that persists+serves the art but reschedules via
MarkFailed, giving the external source another chance. When external later
answers definitively-not-found, the hit is not stale and the row is deleted.

* fix(artwork): treat playlist cover URL 404 as definitive miss

The playlist ExternalImageURL step used sources.go's fromURL, which maps any
non-200 to a generic error, so a stale URL returning 404/410 was classified
transient: infinite backoff plus it counted toward the circuit breaker,
blocking valid external work. Add a local fetch in resolve.go that maps
404/410 to model.ErrNotFound (definitive) while keeping other non-200s
transient. sources.go is left untouched.

* test(artwork): move soak test into the Ginkgo suite

* test(artwork): make leak and permission tests pass on linux

goleak now ignores notify's nonrecursive-tree goroutines (linux uses
inotify, which spawns dispatch+internal instead of darwin's recursive
dispatch), and the read-only-dir prune spec skips under root, where
permission bits cannot make Remove fail.

* fix(artwork): reject decompression-bomb dimensions before decoding

* fix(artwork): keep fresh re-enqueues ahead of stale failure backoff

* fix(artwork): include M3U external art flag in the config fingerprint

* fix(artwork): resolve private playlists with an admin context

* test(artwork): convert non-synctest timing tests to Ginkgo specs

TestArtworkBackoffSchedule and TestArtworkWorkerRunNoLeak needed no real
*testing.T (no synctest), so move them into worker_test.go as Ginkgo
specs. TestArtworkBreakerHalfOpen stays plain since testing/synctest
requires a real *testing.T, matching core/scrobbler's precedent.

* fix(artwork): store backing-file provenance per item, not per hash

* fix(artwork): apply image limits to playlist tile decoding

decodeTile ran image.Decode on every sampled album's resolved bytes
before processItem's maxImageBytes/maxImagePixels guards applied,
letting an oversized or decompression-bomb tile fully decode
unbounded. Enforce both caps inside decodeTile itself.

* refactor(artwork): reuse auth.WithAdminUser and dedupe image cap guards

* perf(artwork): fetch only IDs for backfill enumeration

Backfill enumerated every album, artist, playlist and radio via GetAll
and mapped out just the ID. GetAll materializes full entities (library
joins, participant/stats/tags JSON, annotation, artwork hydration), so on
a large library it loaded tens of thousands of heavy structs only to read
one field each — spiking transient RSS to ~1GB during the one-time
upgrade backfill, a memory risk on small NAS/Pi hardware.

Add GetAllIDs to the album, artist, playlist and radio repositories: it
reuses each repo's base row-set filter (library visibility, artist
content join, playlist userFilter) but projects only id, skipping the
heavy columns and post-processing. A per-repo parity test asserts
GetAllIDs returns exactly the same id set as GetAll.

Verified on a 727MB / 29k-artist production DB copy: peak RSS during
backfill dropped from ~1012MB to ~89MB, file descriptors flat, same
36,138 items enqueued.

* feat(artwork): promote worker concurrency and external rate to real configs

The artwork worker's drain speed was governed by two hidden Dev flags,
DevArtworkWorkerConcurrency and DevArtworkExternalRPS, both defaulting to 2.
On a large library's one-time backfill the external rate limiter is the real
ceiling: every art-less item waits on it before the (rate-limited) external
lookup, so the drain crawls at ~RPS items/sec while local-art items are
unaffected.

Promote both to documented, supported options: ArtworkWorkerConcurrency
(default 4) sets local-resolution parallelism, ArtworkExternalMaxRPS
(default 2, 0 = unlimited) caps external-agent lookups to stay polite to
Last.fm/Deezer/etc. Operators can now trade first-backfill speed against
external-API rate limits. The old Dev names still map for backward compat.

* fix(deezer): never return empty-image-id placeholder pictures

* feat(agents): enumerate enabled image-retriever agents per capability

* feat(artwork): worker fetches agent images directly with per-agent rate limits and breakers

* fix(artwork): treat agent not-found as breaker success

* feat(model): content-hash artwork id suffix and hydratable per-entity image state

* feat(persistence): hydrate artwork hash and absence onto entity pages

* feat(artwork): resolve media_file embedded art in the worker, invalidate on rescan

* feat(artwork): broadcast refresh events when artwork lands

* fix(artwork): broadcast refresh for stale-found artwork too

* feat(artwork): state-backed serving path with provisional read-through

* feat(server): serve artwork from persisted state with content-hash caching

* feat(subsonic): content-hash coverArt ids, omit artwork on known-absent

* refactor(artwork): delete the legacy reader chain, cache warmer, and provider image methods

* feat(artwork): precache on acquisition, bump on upload/radio changes, manual re-resolve API

* test(artwork): end-to-end coverage for the serving cutover

* chore(artwork): generic 500 bodies on refresh endpoint, trim stale test comments

* fix(artwork): request read-through must not reset the failure backoff

The provisional read-through and dangling re-enqueue used Enqueue, whose upsert
resets retry_at, so any browse of an unresolved entity that was backing off after
an external failure made it immediately eligible again — defeating the exponential
backoff during a provider outage. Add EnqueueBump, which raises priority but leaves
an existing row's retry_at intact, and route the serving path through it. Scan and
manual re-resolve keep Enqueue's reset (a detected change wants immediate retry).

* fix(artwork): keep an eligible track's cover requestable when its album is absent

An embedded-eligible track with no resolved item_artwork row inherited the album's
ImageAbsent, so when the album resolved absent (e.g. CoverArtPriority without
'embedded') the track's coverArt was omitted permanently — the client never
requested it, so the lazy mediafile path never resolved it — even though the
serving path would extract and serve the track's own embedded art. Hydration now
never copies the album's absence onto an eligible-but-unresolved track.

* fix(artwork): validate each agent image URL before picking the largest

bestImageURL selected the largest by size and only then parsed it, so a malformed
largest URL (e.g. a bad percent-escape) returned nil and shadowed a valid smaller
candidate, contradicting the documented skip-unparseable behavior. Parse per
candidate and compare sizes only among URLs that parse.

* fix(artwork): fall back to disc art, not the album, for multi-disc tracks

serveMediaFile delegated an absent/ineligible track straight to AlbumCoverArtID,
skipping the disc-specific lookup that MediaFile.CoverArtID (and the deleted legacy
reader) use. On multi-disc albums with per-disc images that served the album cover
instead of the configured disc artwork. Delegate through DiscCoverArtID.

* fix(artwork): enqueue uploaded artwork only after the filename is persisted

SetImage cleared state and enqueued the bump before the caller stored the new
filename, so a worker drain in that window could resolve against the old (already
deleted) file and settle absent, leaving the upload unused until a later scan. Move
the invalidate+enqueue into EnqueueArtwork, which each caller now invokes after the
entity Put.

* fix(artwork): keep multi-disc tracks requestable when the album is absent

Round-1's hydration fix still copied the album's known-absent onto a non-eligible
(or own-absent) track, but MediaFile.CoverArtID routes a multi-disc track to disc
art, which resolves provisionally and is never known-absent. Marking it absent made
Subsonic omit coverArt so clients never requested a valid disc image. Only mark a
single-disc track absent, and only when its own art won't resolve.

* fix(artwork): serve a local playlist ExternalImageURL as a file-backed reference

A local ExternalImageURL was resolved through the external step and labelled
external, so placeBytes copied it into the content-addressed store and dropped its
path/mtime — replacing the file never tripped the staleness check. Classify local
references as file-backed (resolved in place, even on the request path) and keep
store-backed behaviour only for http(s) URLs.

* fix(artwork): requeue playlist cover when its track set changes

A generated-grid cover went stale after track mutations: nothing re-resolved the
playlist's artwork, and the request path deliberately never rebuilds the grid, so
serveEntity kept returning the old grid hash indefinitely. Enqueue pl artwork from
refreshCounters (the choke point for every track-set change); no clear, so the old
cover keeps serving until the worker rebuilds.

* fix(artwork): open library-backed artwork through its on-disk root

A library configured with a file:// path stored absRoot as the raw URI, so Abs
produced strings like file:/music/cover.jpg that os.Open/os.Stat reject — folder,
upload and embedded art were treated as dangling on every request, looping forever.
Normalize a file:// path to its parsed OS path (the same root os.DirFS uses);
non-local schemes are left unchanged (out of scope, per the artwork-musicfs TODO).

* fix(artwork): only use disc resolution for multi-disc albums

DiscCoverArtID returns a dc- id for any track with DiscNumber>0, so serveDisc ran
the full DiscArtPriority chain even for single-disc albums, where a stray disc*/
embedded image could shadow higher-priority album art. Gate disc resolution on the
album having more than one disc, matching the legacy reader; single-disc tracks
serve album art directly.

* fix(artwork): invalidate artwork when an uploaded image is deleted

Deleting an artist/radio/playlist upload cleared the filename but left the found
item_artwork row and its hash, so lists kept advertising the deleted cover's
hash-suffixed immutable URL and clients could display it indefinitely. Call
EnqueueArtwork after the delete-side Put, symmetric with upload, so the state is
cleared and re-resolved to the next source (or absent).

* fix(artwork): restore synthetic-artist guard and unicode normalization in agent lookups

Moving agent calls into the worker bypassed two behaviors of the aggregate provider:
Agents.GetArtistImages' guard for Unknown/Various Artists (a direct retriever call
could assign an unrelated image to a synthetic artist), and auxAlbum/auxArtist.Name's
DevPreserveUnicodeInExternalCalls normalization (records with typographic quotes/dashes
missed exact-name searches). Re-apply both before enumerating retrievers.

* fix(artwork): enforce entity visibility on the Subsonic getCoverArt path

serveEntity reads persisted item_artwork by id, bypassing the library and private-
playlist filters that the legacy entity-load applied. On the authenticated Subsonic
path a user could fetch artwork for an inaccessible album or someone else's private
playlist by guessing an id. getCoverArt now resolves the underlying entity through
the request-scoped (filtered) repositories and serves the placeholder when it is not
visible, so existence isn't leaked and the always-an-image invariant holds. The
public share (JWT-authorized) and Jellyfin (admin) paths are intentionally untouched.

* fix(artwork): version the artwork ETag with the served representation

The ETag was the pixel hash of the original image, so a CoverArtQuality or
EnableWebPEncoding change altered the resized bytes without changing the ETag —
revalidating clients got a spurious 304 and kept the old encoding. Resized responses
now carry a representation ETag (hash + size + square + encode settings) used for the
ETag header and If-None-Match, while the immutable decision stays on the pixel hash
(URLs remain pixel-identity per the spec, so hash-suffixed clients keep zero-request
caching). Full-size originals fall back to the pixel hash as before.

* fix(artwork): don't stamp the album hash onto multi-disc tracks

The hydration fallback assigned a found album hash to every fallback track, but a
multi-disc track's CoverArtID emits a dc- id served from disc-specific art whose hash
is unknown at hydration time. Advertising dc-..._<albumHash> gave clients a content-
version that never changes when the disc image does, breaking id-based refresh. Only
stamp the album hash for single-disc tracks (DiscNumber == 0); multi-disc tracks stay
unhashed and rely on the correct ETag returned by the served response.

* fix(artwork): enqueue new empty playlists by id, and refresh on absent outcomes

Two worker/enqueue fixes from review:
- playlistRepository.Put assigned the generated id to the caller's Playlist but passed
  the stale copy (empty id) to refreshCounters, enqueueing a pl|"" row the worker
  failed until the daily dangling purge while the real playlist went unresolved. Set
  the id on the copy before enqueueing.
- The drain refresh batch only included found/foundStale, so a cover removed by a scan
  (found -> absent) never notified clients, leaving the old immutable image displayed.
  Broadcast absent outcomes too; precache still only warms found/foundStale.

* fix(artwork): honor disabled per-track art at serve time; use nanosecond mtime provenance

Two serving-correctness fixes from review:
- serveMediaFile served a persisted mf embedded image even after EnableMediaFileCoverArt
  was turned off (the setting isn't in the config fingerprint, so found rows aren't
  reprocessed). Direct mf- URLs now honor the setting at serve time and fall back to
  disc/album art.
- The file-backed staleness check compared whole-second mtimes, so a same-second content
  replacement (two writes in one second, or timestamp-preserving tools) could serve
  different bytes under the old hash + immutable policy. RefMtime is now unix-nanoseconds
  (no schema change; int64 column), detecting sub-second changes where the filesystem
  records them.

* fix(artwork): preserve the drive when normalizing Windows file:// library paths

url.Parse puts the volume of file://C:/Music in Host, not Path, so localOSRoot dropped
it and returned /Music — os.Open/os.Stat then failed and folder/embedded art on Windows
looped as dangling. Rejoin the host volume, matching core/storage/local's newLocalStorage.

* fix(artwork): clamp negative sizes to full-size; convert imghttp test to Ginkgo

- A negative size (Subsonic size / Jellyfin maxwidth accept signed ints) reached
  resizeStaticImage, where the square path builds image.NewNRGBA(Rect(0,0,size,size))
  — a giant rectangle that panics/OOMs. Clamp size<0 to 0 (full-size) at the Service
  entry. Positive sizes were already clamped to the original.
- imghttp used a plain func Test with a table; convert to a Ginkgo DescribeTable with
  the suite entry point in imghttp_suite_test.go (AGENTS.md test-framework requirement).

* test(artwork): use renamed ArtworkWorkerConcurrency in e2e tests

* feat(artwork): carry blurhash through item image hydration

* feat(nativeapi): expose artwork hash, absence and blurhash

* feat(artwork): hydrate the parent album's artwork state onto tracks

* test(artwork): add hydrateArtwork regression guard for AlbumImage wiring

Drives hydrateArtwork itself (not applyItemImage directly) over tracks that
take each of the loop's continue branches, so a future edit moving the
AlbumImage fill below a continue would fail loudly instead of passing silently.

* feat(jellyfin): version album and artist image tags by content hash

* fix(jellyfin): trim primaryImageTag comment to why-only, within budget

* feat(jellyfin): emit real blurhashes and drop the synthesized fallback

* feat(ui): version cover art urls by content hash and skip absent art

* feat(ui): add BlurHashCanvas placeholder component

* fix(ui): clear stale blurhash pixels and assert the draw path in tests

Clear the canvas before each decode attempt so a hash change that fails
to decode doesn't leave the previous frame's pixels on screen once this
wires into a list that recycles items. Also strengthen the specs to
assert createImageData/putImageData were actually invoked (and with
what), instead of only checking that a <canvas> element exists.

* feat(ui): show the blurhash while an album cover loads

* fix(artwork): hydrate cursor streams via an id pre-pass

The album, artist and playlist GetCursor built their own select and never
called hydrateArtwork, so every Jellyfin list endpoint (all six stream via
GetCursor) emitted entity-id image tags and no blurhash. Only GetAll
hydrated, which is why Subsonic and the native API were unaffected.

Each cursor now resolves its ordered/filtered/paginated id set with the
cheap id-only GetAllIDs query, then streams those ids in chunks through the
repo's existing GetAll, which already hydrates and applies the full select.
Max/Offset are consumed by the pre-pass alone; the chunk query carries only
the caller's filters, Sort and Order.

This also removes a pre-existing deep-pagination cost: keeping OFFSET out of
the joined query makes the pre-pass a covering index scan instead of paying
the library and annotation joins for every skipped row. Benchmarked on a
synthetic 100k-album DB with the real schema, page=500 at offset 90,000:
3.9ms via the id pre-pass, 52.5ms for the current shape, 192.7ms for a naive
join. An unpaginated full stream costs ~24% more, which is the trade.

GetAllIDs gains the annotation join whenever the caller's filters or sort
reference an annotation column (same gate CountAll uses), otherwise
Filters=IsFavorite and SortBy=PlayCount would fail in the pre-pass. The
playlist pre-pass repeats GetAll's columns so ORDER BY keeps resolving to
playlist.name rather than the joined user.name.

* fix(jellyfin): hydrate artwork on the song cursor

Jellyfin's listSongs streamed media files via GetCursor, which never
hydrates artwork, so songs emitted entity-id image tags and no blurhash.

media_file now uses the same id pre-pass as the other three cursors
(album/artist/playlist), for consistency, but on a separate method,
GetCursorWithArtwork: GetCursor itself must stay untouched, since it's
also the scanner's hot path and the scanner never reads artwork.

Measured on 1,000,000 tracks, the pre-pass over all ids costs +41.8 MB
heap and +298 ms versus GetCursor's bounded +0.0 MB. The Jellyfin path
is paginated, though, so in practice it only ever pre-passes a page's
worth of ids, not the full library, and doesn't pay that cost.

* feat(jellyfin): emit a song's own cover art when it differs from the album's

Real Jellyfin fills ImageTags from each item's own images before falling back
to the parent album, and Finamp checks imageTags.Primary before AlbumId. Our
mapper read only the album's image, so a track with distinct embedded art
silently showed the album cover.

Emit exactly one entry under ImageBlurHashes.Primary: Go marshals
map[string]string in sorted key order rather than insertion order, so a
second entry could pair the wrong blurhash with the image imageId resolves
to, and Finamp pins that pairing in its cache for 365 days.

* test(persistence): scope the GetCursorWithArtwork full-stream spec to tie-free ids

The fixture has title ties (e.g. three "Antenna" tracks), so the unscoped
positional comparison against GetAll only passed because SQLite's tie order
happened to coincide between the full scan and the pre-pass's id IN (...)
fetch. Scope it to onlySongs like the sibling ordering specs already do.

* refactor(artwork): route song own-art through primaryImageTag; align chunk size

Cleanups surfaced by /simplify: the song mapper's own-art branch reimplemented
primaryImageTag's tag+blurhash-map construction (and its one-entry invariant) — route
it through the helper so that invariant lives in one place. Tie artworkChunkSize to a
whole multiple of artworkBatchSize so a cursor page re-chunks into even hydration
batches. Hoist a duplicated imageLoading && blurHash boolean in the album grid.

* fix(ui): serve the placeholder for known-absent art instead of a broken icon

getCoverArtUrl returned '' for an imageAbsent record, so <img src={undefined}> rendered as the browser's broken-image icon on every absent cover. The server already serves a proper placeholder for absent art, so build the url and let it render.

* feat(ui): show the blurhash as the loading placeholder across cover surfaces

Add a shared CoverImage component (useImageUrl blob cache + blurhash + fade) and render the blurhash while a cover loads on the list thumbnails (CoverArtAvatar, radio) and the artist/album/playlist detail pages. The detail pages now go through CoverImage instead of a plain CardMedia, so their images come from the in-memory blob cache and survive React remounts without re-fetching. BlurHashCanvas gains an optional style prop.

* refactor(ui): unify list cover surfaces onto the shared CoverImage component

Route the album grid, CoverArtAvatar (artist/playlist lists) and the radio list's cover field through CoverImage instead of each carrying its own useImageUrl + blurhash-overlay wiring. CoverImage gains a default object-fit: cover. Radio keeps its uploaded-image gate and the generic radio placeholder for stations with no art.

* fix(ui): address CoverImage review findings

Restructure CoverImage so the size/shape lives on the root and the blurhash + image are absolute fills: the <img> mounts only once its blob is ready, so an unresolved cover never flashes a broken <img>. Add a fit prop (default cover) so album/playlist detail keep their letterbox instead of being cropped by a hardcoded object-fit. Remove the orphaned coverLoading styles and an unused subsonic import; add a CoverImage unit test.

* perf(ui): only refetch already-loaded records on SSE refresh

The artwork worker broadcasts a RefreshResource event per resolved chunk,
carrying every id in the chunk. useResourceRefresh was doing a getMany for
all of them, so any open list/detail page fetched hundreds of artists it
was not displaying. Filter the event ids to records already in the store;
the rest load fresh (with their new artwork) when navigated to.

* refactor(artwork): scale worker concurrency with CPU count

ArtworkWorkerConcurrency now defaults to max(2, NumCPU()/2) instead of a
fixed 4, mirroring MaxOpenConns: local resolution scales with the host but
stays at half the SQLite pool so it never starves the scanner/UI. External
RPS stays a fixed 2 — it gates third-party API calls and is bounded by their
tolerance, not the host, so it must not scale with CPUs.

Also drop the DevArtworkWorkerConcurrency/DevArtworkExternalRPS deprecated
aliases: those names were never released, so there is nothing to migrate.

* feat(artwork): re-queue an absent cover when its page is viewed

serveEntity now schedules a Bump recheck for an entity whose art was recorded
absent, so viewing a missing cover re-triggers resolution (e.g. after an
external source that was down during the scan comes back), matching the
request-time bump that already covers never-resolved entities.

Throttled by attempted_at against requestRecheckAge (1h) so repeatedly opening
a genuinely-absent page can't hammer external services. EnqueueBump preserves
an existing failed-state backoff via MAX(priority,...) and inserts a fresh,
immediately-eligible recheck for a settled-absent row (whose queue row was
already deleted).

* refactor(artwork): move ImageUploadService to artwork.Uploader

Relocate the image-upload service from core to core/artwork as
artwork.Uploader, co-locating it with the resolver/worker/serving that own
the artwork state it invalidates. MaxImageUploadSize moves too — its only
callers are the two image-upload handlers — which lets core/image_upload.go
be deleted entirely.

Extract the shared "clear resolved state + re-queue at Bump" invalidation
into artwork.Refresh and fold nativeapi's refreshArtwork handler onto it,
removing the duplicated DeleteForItem+Enqueue block that had drifted into
three places.

The wire provider moves from core's set to artwork's; the
playlists.ImageUploadService binding moves to the top-level injector so
core/artwork stays unaware of playlists. Behavior is unchanged.

* refactor(artwork): thread model.Kind through the artwork API

Entity-level artwork queries now take a typed model.Kind instead of a bare
prefix string. GetItemArtwork, DeleteForItem(s), GetInfoForItems,
EnqueueStaleAbsent, hydrateItemImages, enqueueBackfillKind and artwork.Refresh
convert to the prefix string only at the two real boundaries: the SQL
item_kind column (kind.Prefix() inside each repo) and external string inputs
(a new model.ParseKind for the nativeapi URL param, which also validates it).

The Backfill/stale-absent kind slices, the resolve.go dispatch switch, and the
kind→resource / kind→table lookup maps now use the Kind vars directly. The
queue lifecycle methods (MarkFailed/Delete*) keep string kinds — they operate
on a dequeued item's raw ItemKind column, which stays a string field, always
populated via kind.Prefix().

Removes every bare "al"/"ar"/… prefix literal from non-test code (27 -> 0);
behavior is unchanged.

* tune(artwork): drop backoff base from 5m to 15s

The exponential retry (base × 4^attempts, cap 48h) started at 5 minutes, so a
single transient failure — a timeout under load, an external blip — parked a
cover for 5 minutes even though a retry seconds later would have resolved it.
Start at 15s instead: transient failures recover almost immediately (15s → 1m
→ 4m → 16m …), while persistent failures still escalate to the 48h cap (now at
the 8th attempt instead of the 5th).

* tune(artwork): 5s backoff base + 12h give-up, drop the cap

Retry backoff now starts at 5s (was 15s) so a transient failure recovers on
essentially the next drain, and jitter widens to ±40% so a wave of correlated
failures doesn't re-clump into one poll.

Add a 12h give-up budget measured from enqueued_at: once the next backoff would
land past it, the worker stops retrying instead of grinding at a cap forever. A
bare failure settles absent (handed to the 24h stale-absent sweep, and still
recoverable on a page view); a found-stale keeps its already-served art. The
budget bounds the tail, so the separate 48h backoffCap is removed.

* fix(lastfm): match album.getInfo on name+artist only, not MBID

Last.fm's album.getInfo by MBID is unreliable: a correct MBID can return a
different album, or none. Observed with black midi's "7-eleven" (whose correct
MBID returned a FLEETWOOD release) and both missing The Chats albums (one MBID
404s, the other resolves to a different self-titled release). The worker then
recorded covers absent — or would fetch the wrong art — even though the correct
cover is on Last.fm by name+artist.

Stop passing the MBID to album.getInfo; query by name+artist only, which also
drops the now-dead error-6 MBID-retry fallback. The low-level client keeps its
MBID support for other callers; only the album lookup changes.

* fix(lastfm): return agents.ErrNotFound on error 6 (not found)

Last.fm returns error 6 for a missing artist/album — a definitive negative —
but the agent returned the raw *lastFMError, so the artwork worker treated
every not-found as a real fault: it counted toward the per-source circuit
breaker (5 in a row opens it, fast-failing all Last.fm calls including valid
ones) and was retried as a transient error instead of settling absent. On a
first scan of a library with many artists Last.fm lacks, this stalled valid
cover lookups and left entities churning in backoff.

Translate error 6 to the shared agents.ErrNotFound at the agent boundary
(callAlbumGetInfo / callArtistGetInfo), matching how the Deezer agent maps its
client's not-found, and log it at Debug instead of Error — which also removes
the not-found log spam.

* feat(artwork): log external image-lookup failures at debug

The worker's res.reader==nil && extError branch returned outcomeFailed with no
log, so a failing external cover lookup (agent error, dead image URL, download
timeout) was undiagnosable. Log the agent, entity, and underlying error at the
fetch site where it's in hand — this surfaced a Last.fm album.getInfo returning
an image URL that itself 404s.

* fix(artwork): treat a 404/410 image URL as not-found, not a transient fault

An agent (notably Last.fm's album.getInfo) can advertise a cover URL that is
itself dead — a 404. sources.go's fromURL returned a generic error for any
non-200, so a dead URL was treated as a transient failure: it churned in
backoff and counted toward the circuit breaker, stalling valid lookups.

Map 404/410 to model.ErrNotFound in fromURL so a dead URL settles absent, and
collapse the near-identical fetchPlaylistImageURL (which already did this for
M3U covers) into it.

* feat(artwork): make artwork re-resolution targeted, not blunt

Two gaps in when the pipeline re-resolves artwork:

The recheck job only requeued absent-state rows (hash=''), so an entity that was
never processed — added between scans, or on a server with the scanner disabled —
had no periodic safety net and stayed without artwork indefinitely. Add
EnqueueMissing(kind): a SQL set-difference enqueueing entities with no
item_artwork row at Recheck priority (ON CONFLICT DO NOTHING, so it never
disturbs a queued row). Run it once at startup and hourly alongside the
stale-absent recheck. Rename staleAbsentKinds -> recheckKinds accordingly.

Conversely, the config fingerprint included consts.Version, which embeds the git
SHA and so changed on every build, re-enqueueing every entity in the library
(~34k here) and re-querying external agents at the configured RPS for anything
without local art. Replace it with an explicit artworkEpoch constant, bumped
deliberately when resolution semantics change. The cases that motivated the
version input — absent art becoming available — are already covered by the
stale-absent and missing-row rechecks; only a corrected wrong-pick needs the
epoch. A test guards against reintroducing the version.

* test(artwork): restore resolution edge-case e2e coverage

The serving cutover removed the album/disc/artist/mediafile/playlist/radio e2e
specs that documented the folder-selection rules and guarded the #5376/#5456/
#5451/#5457 regressions; nothing replaced them, so compareImageFiles and the
parent-fallback logic were left untested.

Restore them driving the real pipeline: a real scanner populates the folder
graph from an in-memory library, the real Worker drains the queue, and the real
Service serves. Folder-backed art is file-backed (served via os.Open, which the
in-memory FS can't satisfy) so its selection is asserted on the persisted state
row; store-backed and real-disk sources are asserted byte-for-byte. Single-disc
disc resolution now serves album art directly, so only multi-disc disc scenarios
are ported.

* fix(artwork): run disc resolution for single-disc albums too

ed4178a6 gated serveDisc on len(album.Discs) > 1, claiming parity with the legacy
reader. The legacy reader has no such gate: artwork.go dispatches every dc- id to
newDiscArtworkReader, whose Reader() walks DiscArtPriority unconditionally.

The gate also lost art. For a single-disc album whose only image is disc1.jpg,
the disc request skipped the chain and fell through to album art, which does not
match CoverArtPriority — so tracks tagged disc 1 (whose CoverArtID is a dc- id)
served nothing at all, where before they served disc1.jpg.

A single disc can legitimately have its own cover, distinct from the album's, and
DiscArtPriority is what expresses that preference. Drop the gate and restore the
single-disc e2e scenarios that covered it.

* fix(artwork): register the GIF decoder in core/artwork

The deleted artwork.go carried blank imports for image/gif and
x/image/webp. WebP came back via resize.go's gen2brain/webp, which
self-registers, but GIF did not: core/artwork claims GIF support in
mimeForFormat and extForMime while relying on an unrelated server
package to have imported the decoder.

The guard lives in the e2e suite because that test binary has no other
image/gif importer; a spec in core/artwork would pass regardless, since
animation_test.go imports the package non-blank.

* fix(artwork): never record absent after a local I/O failure

Local sources swallowed their open errors, so a stale NFS/SMB mount was
indistinguishable from "this entity has no artwork": the chain returned
no reader, processItem took the absent branch, and the upsert replaced a
good content hash with the empty string. Clients then saw a placeholder
until the 1h request recheck or the 24h stale-absent sweep, and the
orphaned bytes became eligible for the next prune.

A candidate the resolver knows about — a file in the folder listing, a
track's own audio file — failing to open is not evidence of absence, so
it now forces a retry the same way an external agent error does.

* fix(artwork): keep served art when the retry budget runs out

Exhausting the 12h budget called writeAbsent unconditionally, so an
entity whose art was already resolved and serving lost it to a long
upstream outage: the hash went empty, clients fell back to the
placeholder, and the now-unreferenced bytes were freed by the next
prune even though nothing about the image had changed.

Exhaustion means the source stayed unreachable, not that the cover
disappeared, so absent is now recorded only when there is nothing to
keep.

* fix(artwork): restart the retry budget on re-enqueue

The conflict clause updated only priority and retry_at, so a row that
already existed kept its original attempts and enqueued_at. The worker
measures the 12h give-up budget from enqueued_at, so any row that had
been pending across a longer gap — a server left off, an upgrade, a
laptop asleep — gave up on its very first attempt and settled absent.

The manual re-resolve endpoint is the sharpest case: it clears artwork
state and re-queues, but inherited the old row's spent window, so a
deliberate retry got one shot. A fresh request now gets a fresh budget,
with the mock updated to match.

* fix(artwork): keep not-found distinct from artwork-absent

GetOrPlaceholder folded model.ErrNotFound in with ErrUnavailable, so an
id matching no entity returned 200 and the placeholder PNG. That made
the ErrorDataNotFound branch in getCoverArt unreachable: Subsonic went
from error 70 to a successful placeholder, and Jellyfin's Primary image
endpoint from 404 to 200. Neither is ours to change.

An entity with no art and an id with no entity are different answers;
only the first is a placeholder.

* fix(artwork): make the prune sweep cancellable

Sweep walked the whole store with no context, and RunPrune holds the
prune write lock for its full duration. In-flight acquisitions park on
the read lock, drain's WaitGroup never returns, and Run never reaches
its ctx.Err() check — so a SIGTERM during a daily prune over a large
store on slow storage waits out the container's grace period and dies
mid-remove.

* fix(artwork): hydrate the tracks reached through a playlist

loadTracks and the playlist-track cursor were the only entity-page
paths that never hydrated artwork state, so a song reached through a
playlist behaved differently from the same song in the songs list:
Subsonic emitted a hashless coverArt id, which imghttp downgrades to
no-cache, and advertised art even for known-absent albums; Jellyfin
emitted AlbumPrimaryImageTag as the bare album id — a tag that never
changes when the cover does — and no blurhash at all.

The media-file hydration moves next to the other hydration helpers so
both paths share one implementation rather than growing a third.

* feat(ui): cross-fade the cover over its blurhash

The blurhash unmounted the moment the blob arrived, so the placeholder
vanished a frame before the image painted. The image now mounts
transparent and fades in over the blurhash, which stays behind it until
the fade completes. A blob already cached when the instance mounts
skips the fade, so a remount does not re-animate.

* fix(ui): retire the blurhash on a timer, not transitionend

Under prefers-reduced-motion the img rule sets transition:none, so
toggling opacity fires no transitionend and the handler that unmounts
the blurhash never ran. The placeholder stayed mounted for the life of
the component — visible in the letterbox bars wherever the cover is
rendered with fit="contain", and a live canvas per tile everywhere else.

One duration constant now drives both the CSS transition and the timer,
so they cannot drift.

* fix(artwork): stop advertising a hash for bytes that won't be served

Hydration stamped the album's hash and blurhash onto an embedded-eligible
track that had no state row yet. Serving takes provisionalEmbedded for
exactly that case and returns the track's own embedded image, so the id
carried a content-version belonging to a different picture: every such
request fell back to no-cache instead of immutable, and a client keying
its cover cache on the blurhash paired the album's with the track's art.

AlbumCoverArtID had the mirror-image problem, building the album id from
the track's own ItemImage. It happened to work only because hydration
overwrote ImageHash in precisely the fallback cases; a track with its own
resolved art would have stamped that hash onto the album's id.

* perf(artwork): precache from the bytes just acquired

Warming the resize cache re-read the two rows and the file the
acquisition had just written, so every acquired image cost two extra
queries and a second full read of a file whose bytes were still in
memory. processItem now hands back what it persisted and precache warms
from that, under the same cache key the serving path computes.

Resolving the admin user also moves behind the empty-queue check: it is
needed only to resolve private playlists, so an idle server no longer
runs a user lookup on every poll.

* perf(artwork): keep the worker pool fed across a drain

The pool was fed from a batch sized to the pool itself (2x concurrency)
with a WaitGroup barrier before the next dequeue, so one item burning
its external timeout idled every other slot until it finished. The
legacy cache warmer had no such barrier: it streamed through a pipeline
of 4.

Dequeuing well past the pool keeps the slots fed for the whole pass at
no extra cost, since DequeueBatch does not mark rows taken and was
already one query per pass. Acquiring a slot now also observes
cancellation, so a larger batch cannot delay shutdown.

* perf(artwork): drain local and external artwork in separate pools

A first backfill enqueues artists before albums at a single priority, so
the drain took them in that order. Artists resolve through a
rate-limited agent, and gate() waits for its permit while holding a
worker slot, so the whole pool sat asleep in the limiter with every
album queued behind it.

Measured on a 96k-track library (29,115 artists to 6,949 albums, 4:1):
zero albums resolved in seven minutes, and roughly 3.3 hours before the
first album cover would have appeared. Splitting the drain gives each
class its own slots: albums now finish in under eight minutes while
artists trickle at the same 2/s they were always limited to.

The two budgets are carved out of MaxOpenConns so a second pool cannot
take connections the scanner and the UI need. Dequeue filters by kind,
and the drain index leads with item_kind so each pool seeks to its own
work instead of scanning past the other's backlog.

* fix(artwork): treat an unreadable upload as a failure, not a miss

resolveLocalFile swallowed every os.Open error, so uploads, playlist
sidecars, a local M3U image and the artist image folder still had the
bug that was fixed for folder and embedded sources: a permission or
transient I/O error on a file that exists read as "no image here". The
worker then settled the item absent and dropped its queue row.

Uploads outrank every other source, so an unreadable one now stops the
chain rather than letting a lower-priority image be persisted in its
place. A genuinely missing file stays a clean miss.

Reported by Codex on #5847.

* fix(artwork): make the pool-split worker test race-clean

CI runs the suite under -race, which the local `make test` does not, so
this only showed up there: 230 specs passed and the detector still
failed the run.

The drain-pools spec started Run and never waited for it, so pool
goroutines outlived the spec and raced the config snapshot Ginkgo
restores on cleanup. It now cancels, unparks the blocked lookups and
waits for Run to return.

Two test doubles also had to become concurrency-safe, since the spec is
the first to resolve several artists at once: fakeImageAgent's call
counters, and MockAlbumRepo.GetAll, which records the last query options
on a read path. MockDataStore's lazy accessors get the same treatment —
only MediaFile was guarded before, and two pools now reach them
concurrently. ArtworkQueue takes an unlocked helper for its internal
Artwork call, since repoMu is not reentrant.

* perf(artwork): stop reading and hashing disc art on every request

The resize-cache key was the content hash, which cannot be computed
without reading the file, so a warm cache never prevented the I/O: every
sized disc request read up to 20MB and hashed it before the lookup. The
legacy reader keyed on the id and the album's mtime and touched the file
only on a miss.

Disc art has no state row and therefore no stored hash, so the key is
that same identity — id, album mtime, DiscArtPriority — and the
selection chain now runs only when the cache misses. Full-size requests
stream the source instead of buffering and hashing it.

This matters more now that single-disc albums keep running the disc
chain, which puts every disc-tagged track without embedded art on this
path.

* fix(artwork): key disc art on folder image changes, not just the album

The identity cache key used album.UpdatedAt alone, which a replaced
disc image does not necessarily move — the sized response would then
serve the old image indefinitely. The legacy reader folded ImportedAt
and the folder's ImagesUpdatedAt into its key for exactly this reason,
and loadAlbumFoldersPaths already returns that timestamp; the disc
reader was discarding it.

* fix(artwork): return undispatched items when a drain is cancelled

claim() reserves the whole batch before dispatch, but the cancellation
path returned without releasing what it had not yet started, leaving
those items in the in-flight set permanently — no later drain could
claim them again.

Harmless until the batch grew past the pool size; now a cancel strands
up to a full batch. The e2e harness cancels mid-drain after every
acquire, so it surfaced there first: one spec timed out waiting for an
item that had been claimed and abandoned, and the suite went from 59s
to 87s on CI.

* fix(jellyfin): make a track's own cover reachable for Jellyfin clients

Media files are never enqueued — the scanner drops their state without
queueing them and the recheck kinds exclude them — so an unresolved
track keeps an empty ImageHash and SongToBaseItem always fell through to
AlbumPrimaryImageTag. Finamp then asks for the album image, nothing ever
requests mf-, and the read-through that resolves the track never fires:
the own-cover branch was unreachable for Jellyfin-only users.

An eligible, unresolved, not-known-absent track now advertises its id as
the Primary tag, which is what makes the client ask. The request serves
the embedded art and queues the track so the worker persists a real
hash. No blurhash is sent, since none exists yet and a fake would be
cached against that tag forever.

Serving gains the album fallback that made this safe to advertise: an
eligible track whose frame will not extract now falls back the way
CoverArtID does instead of answering with a placeholder.

Reported by Codex on #5847.

* fix(artwork): treat an unreadable artist-folder image as a failure

Third and last site in this class: findImageInFolder logged and skipped
an image the glob had already matched, so a permissions or mount failure
during the artist-folder traversal read as "no image here" and let
processItem settle the artist absent, discarding any artwork already
resolved.

A matched-but-unreadable file now propagates through fromArtistFolder
and lands as localError, the same as album folder art, embedded art and
uploads. A folder with no match stays a definitive miss.

Also normalizes the e2e path assertions with filepath.ToSlash: the
stored SourcePath is OS-native, so the forward-slash suffixes failed
all 23 folder specs on Windows.

Reported by Codex on #5847.

* fix(artwork): give full-size disc art a real ETag

Regression from 04d5a556. Keying the resize cache on identity meant the
disc response no longer carried a content hash, and the full-size branch
set no ETag either — so WriteImageHeaders fell back to the empty hash
and emitted `ETag: ""` for every full-size disc image. Since ifNoneMatch
compares the unquoted value, a client echoing that back matched, and got
a 304 even after the image was replaced.

The full-size branch now carries the same identity validator the sized
branch uses, so it moves when the folder's images change.

WriteImageHeaders is hardened against the class as well: an empty
validator is no validator, so it is neither emitted nor matched.

Reported by Codex on #5847.

* test(artwork): inject the unreadable source instead of chmod

os.Chmod cannot revoke read access on Windows — it only toggles the
read-only attribute — so the findImageInFolder spec opened the file
happily and failed there, and the upload spec passed for the wrong
reason: outcomeFailed came from the 1-byte payload failing to decode,
not from the source being unreadable.

findImageInFolder takes an fs.FS, so the failure is now injected and
the spec is filesystem-independent. The upload path goes through
os.Open directly and has nothing to inject, so it skips on Windows
rather than pretend to cover it.

* fix(artwork): compare the pixel cap without multiplying

Defence in depth rather than a live hole: the reported crafted PNG
(0xffffffff square) never reaches the multiplication, because
image/png rejects it at DecodeConfig, and the largest dimensions any
supported format can declare — 2^30-1 for PNG, 16-bit for JPEG and
GIF, 14-bit for WebP — cannot overflow the int64 product.

decodeCapped is format-agnostic though, so the guard should not depend
on a decoder's own limits staying where they are. Comparing by division
holds for any dimensions a decoder might report, and non-positive ones
are now rejected outright.

* refactor(ui): rename cover artwork components

* fix(ui): remove Artwork rendering gate

Signed-off-by: Deluan <deluan@navidrome.org>

* fix(cache): re-fetch when a cache entry outlives its data file

fscache's Remove drops the in-memory entry, releases the lock, and only then
unlinks - blocking until every outstanding reader closes. A Get landing in that
window re-creates the file at the same path under a fresh entry, and the deferred
unlink deletes those new bytes. The entry survives pointing at nothing, and since
a present entry is treated as a hit, every later Get for that key returns ENOENT
for the rest of the process's life. Only a restart, which rebuilds the map from
disk, cleared it.

Get now drops such an entry and retries once, so a vanished data file costs one
re-fetch instead of poisoning the key permanently. This also covers a file
disappearing for reasons unrelated to that race, such as external deletion or a
restored backup.

Specs cover an in-process entry, one adopted at startup, and the deferred-removal
race itself.

* fix(artwork): log why a sized cover fell back to the placeholder

serveHash routed every non-cancel cache error into dangling(), which returns
ErrUnavailable and is then rendered as a placeholder at 200 OK. A cache-layer
fault was therefore indistinguishable from an album genuinely having no artwork,
and left no trace: a broken resize cache silently served placeholders for a
quarter of the library while the logs stayed clean.

Log the error before falling back, so the cause is recoverable from the logs.

* fix(artwork): precache the cover variant the UI actually requests

precache built its resizedItem without setting square, so it warmed
h-<hash>.<size>.false.<quality>. The list surfaces - album grid, artwork avatars,
playlist and radio details - all request square covers, so the warmed entry was
never read and every grid cover stayed a cold miss on first view.

Set square on the precache item so the key matches the request path. The existing
specs asserted the '.300.false.' key and were updated accordingly.

* fix(cache): give a re-created cache entry its own file

Create re-opened the path with O_TRUNC, which shrinks the file out from under an
older stream that may still be serving readers. stream.Reader then hits EOF from
the OS at the new, shorter length while the broadcaster still reports the original
size, so Wait() reports 'more data exists' and the reader retries forever - a tight
pread loop that burns a core and never releases its handle, which in turn blocks
Stream.Remove() indefinitely.

Unlink first and create with O_EXCL so the new entry gets a fresh inode. Existing
readers keep their descriptor on the old inode, see its full contents, and reach a
clean EOF.

Note this does not address the deferred unlink deleting the re-created file, which
is handled separately by the re-fetch in fileCache.Get.

* fix(cache): keep the in-place truncate on windows

Unlinking before re-creating fixes the premature-EOF spin on unix, but Windows
refuses to remove a file another handle still has open and returns a sharing
violation. Because Create surfaces that error, every cache miss on a path with a
live reader would have failed outright - worse than the spin it was meant to fix.

Split the create behind a build tag: unix unlinks for a fresh inode, Windows keeps
truncating in place and stays exposed to the spin, which is the behaviour it
already had. The unix-only spec is skipped there.

* fix(artwork): shape the blurhash placeholder to the artwork's aspect ratio

The UI decoded every blurhash into a 32x32 bitmap and stretched it to fill its
container, so a non-square cover showed a full-box blur that collapsed into a
letterboxed image the moment it loaded. On the album detail page the
placeholder overhung the image by a third of the box height.

A blurhash string carries no aspect ratio of its own, so the dimensions have to
come from the server. artwork.width/height were already stored and read by
nobody; they now surface on ItemImage as imageWidth/imageHeight, hydrated
through the join that was already in place. Existing rows already carry them,
so no migration or rescan is needed.

A square request is padded rather than cropped, which aspect-fits the content
inside the square the server returns. That made the grid a second instance of
the same bug, so `square` now implies contain for the image as well as the
placeholder, instead of the two renderers reading it differently.

* feat(jellyfin): expose PrimaryImageAspectRatio

Real Jellyfin carries width/height of the Primary image on BaseItemDto
(MediaBrowser.Model/Dto/BaseItemDto.cs), attaching it only when the request's
Fields asks for it (DtoService.cs ContainsField). The dimensions are now on
model.ItemImage for the web UI's blurhash placeholder, so the adapter can
report the same thing for free.

Gated behind Fields to match, and omitted rather than defaulted when the item
has no image or unknown dimensions: real Jellyfin falls back to a per-type
default of 1 for music, but a wrong ratio mis-shapes a client's placeholder,
and we only lack dimensions when the artwork is genuinely unresolved.

primaryImageTag becomes primaryImage, returning the tag, blurhashes and ratio
together, so the choice of which image is Primary is made once per mapper
rather than the same ItemImage being threaded through two calls.

ArtistToBaseItem and PlaylistToBaseItem take Fields now, like the album and
song mappers already did.

* refactor(model): give ItemImage an AspectRatio method

The zero/absent guards around width/height are ItemImage's own invariant, not
the Jellyfin adapter's. Moving them onto the model keeps one definition for
every consumer, so a second one cannot quietly disagree about what an unknown
ratio means.

* fix(ui): anchor detail pages to the top when opened from a list

React Router keeps the previous page's scroll offset, so opening an album from
a scrolled list started the detail page mid-song-list. Artist pages had the
same bug; it just shows less because the artist list is rarely long enough to
scroll far.

Keyed on the record id rather than mount, so detail-to-detail navigation (an
album's artist link) resets too, and so the scroll waits for the record instead
of firing against an empty page.

* fix(ui): stop the Random album grid collapsing on every keystroke

The grid was replaced by a spinner whenever the random list was loading, so
each search keystroke collapsed it to spinner height and back. That blanket
blanking is the flicker commit 9e559311a removed for every other list; random
kept the exception so a re-roll would not flash the roll it is replacing.

Blank on a seed change instead of on any load: a re-roll gets a new seed and
still blanks, while a search keeps the seed and leaves the grid in place. The
seed is tracked from empty rather than from the current value because a re-roll
redirects and remounts the grid, which would otherwise look already-settled
with the previous roll still on screen.

Same rule for the pagination, which was hidden on the same condition.

* refactor(artwork): move fingerprint property key const to `consts` package

Signed-off-by: Deluan <deluan@navidrome.org>

* refactor(tests): enhance database handling with resettable tables and truncation

Signed-off-by: Deluan <deluan@navidrome.org>

* refactor(artwork): narrow the prune lock and drop redundant in-flight tracking

The prune read-lock wrapped all of processItem, including external fetches under
their own timeout. Since a pending RWMutex writer blocks new readers, one prune
arriving behind a slow provider stalled every subsequent item in both drain
pools. Extract persist() so the lock covers only the window it protects: store
placement plus the two row writes.

The in-flight set guarded against a queue row appearing twice in one batch, but
artwork_queue's primary key makes that impossible, drains are serial per pool,
and the pools' kind lists are disjoint. Removing it also retires the cancellation
unwind loop that existed only to release those claims.

* fix(artwork): never settle absent for a kind no recheck job revisits

The 12h retry budget hands a bare failure to the periodic stale-absent
sweep, which is what makes the resulting absent row recoverable. Media
files are deliberately excluded from that sweep -- they resolve embedded
only, at scan or on view -- so exhausting the budget on a transient read
error recorded a "this track has no cover" verdict that nothing would
ever revisit.

Settle absent only for kinds a recheck job covers. Without a row the
track stays unresolved, so the next view re-enqueues it.

* refactor(artwork): remove dead plumbing from the serving path

artworkReader.LastUpdated had no callers: invalidation rides entirely on
the cache key, so the interface member, the resizedItem field and its
four assignments were vestigial. Reader's second return value was
likewise discarded at all three call sites.

resizedItem.Key duplicated representationTag's format string over
identical inputs, where drift would serve a wrong-keyed entry under a
right-looking validator; it now derives from it. newResizedItem had one
caller and a doc comment claiming a sharing with worker.precache that
never existed -- precache builds its own literal.

Also unexport Prune, which no caller outside the package used while
RunPrune documented itself as the only sanctioned path, drop a
single-call placeholder wrapper, and delete five fakeFolderRepo fields
no spec ever set.

* refactor(artwork): drop queue repository methods only tests called

MarkFailed and Delete had no production caller: the worker only ever uses
MarkFailedIfUnchanged and DeleteIfUnchanged, which refuse to act on a row
a concurrent scan re-enqueued. Keeping the unconditional pair meant the
interface offered the racy variant under the more obvious name.

MarkFailedIfUnchanged does not build on MarkFailed, so nothing in the
implementation needed them either. The repository tests used them to put
a row into a backed-off state; they now do that directly.

* test(artwork): pin that a request never fetches or samples album art

resolveItemLocal's guard against the remote ExternalImageURL fetch and
the 2x2 grid had no coverage: deleting it left the whole suite green
while putting synchronous network calls on the request path.

The worker resolving the same playlist is asserted alongside, so the
spec cannot pass by simply resolving nothing.

* refactor(artwork): give the resolver a receiver and one capability field

The resolve* chain walkers each took seven parameters -- ds, agents,
ffmpeg, gate, localOnly -- while the package already had workerDeps
bundling the same collaborators for processItem. They are now methods on
a resolver.

The external capability is one nilable field instead of three values
that had to agree. Previously a local-only resolution passed agents=nil,
gate=denyGate and localOnly=true, and only the localOnly check actually
protected anything: the external branch dereferences agents in the loop
header, before the gate closure runs, so denyGate could never fire. It
is deleted. A nil ext now both marks the resolution local-only and
removes the agents there were to dereference, and newLocalResolver takes
no parameter that could supply one.

The playlist tile loop hardcoded localOnly=false, safe only because an
early return 22 lines above it made that unreachable; it now inherits
the resolver's capability.

* refactor(artwork): funnel every served representation through one path

serveHash, serveBytes and serveDisc each hand-copied the same five steps
-- test for full size, stream or build a resizedItem, call the cache,
wrap with a validator -- with a different error policy bolted on. The
ETag rule was restated at four sites and applied inconsistently.

serveSource now states it once: full size streams open() directly, and
an ETag is attached only when the bytes are resized or there is no hash
to validate against. Each caller keeps just its own error policy, and
serveBytes folds into its single caller.

Two behavior changes fall out, both narrowing an aborted request's blast
radius: serveDisc propagates context.Canceled instead of falling back to
a full album resolution, and serveHash's full-size path propagates it
instead of going dangling, which would have enqueued a re-resolution for
a request nobody is waiting on.

* style(artwork): use one log prefix, spelled the way the codebase does

The package logged under three spellings of its own name -- "artwork: "
lowercase, "Prune: " and one "Artwork: " -- and the lowercase ones
carried lowercase message text, against 568 capitalized to 48 lowercase
elsewhere.

Prefixing itself is the convention here (Scanner:, API:, Watcher:) and
it earns its place: DevLogSourceLine is off by default, so without it a
line does not say which subsystem emitted it. So this normalizes the
spelling rather than dropping the prefix. Error strings stay lowercase
and unprefixed per Go convention.

* refactor(artwork): give workerDeps only what the processor uses

The bag carried cache, which processItem never reads and only the
worker's precache uses, and carried agents/ffmpeg/gate solely to
reconstruct a resolver on every queue item. cache and ffmpeg move to
Worker, where precache actually uses them, and the resolver is built
once in NewWorker.

persist's hash parameter was redundant: decodeArtwork sets Hash and
GetImage selects it, so art.Hash already holds it on both paths.

The type itself now lives beside Worker, which owns it, rather than in
the file of the function it is passed to.

* refactor(artwork): make acquisition a processor with its own receiver

workerDeps was a parameter bag threaded into two free functions that
nothing outside the worker calls. It becomes the processor type, with
processItem and persist as acquire and persist methods on it, and Worker
holds one collaborator instead of reaching through a bag.

Kept as a separate type rather than folding onto Worker: acquisition
takes a queue item and returns bytes, while Worker.process settles the
queue row around it. That boundary is what keeps retry policy out of the
image pipeline, and what lets the acquisition specs build a three-field
value instead of a Worker with drain pools, gates, a broker and a
real on-disk cache.

* refactor(artwork): collect the external gate contract in one file

gateFunc, passthroughGate and isTransientExternal sat in agent_images.go
while every implementation lived in worker.go: extGate, breaker,
Worker.gate, gateFor. isTransientExternal even carries a comment saying
it must stay consistent with breaker.record, which was in the other
file -- a rule spanning two files with only a comment holding it
together.

Pure move into gate.go: no symbol added or removed.

* refactor(artwork): put the whole playlist grid in playlist_cover.go

decodeTile and assembleTiles were in resolve.go while the geometry they
depend on -- rect, fillCenter, tileSize -- was in playlist_cover.go and
used nowhere else, so one file held the grid's helpers and another its
assembly.

Pure move.

* refactor(artwork): move resizedItem next to the interface it implements

resizedItem is the only implementation of artworkReader, which is
declared in image_cache.go, and it is used by the worker's precache as
well as the serving path -- so worker.go was reaching into serving.go
for a cache type. representationTag stays in serving.go, where the
HTTP validator belongs.

Pure move.

* refactor(artwork): fold Refresh into housekeeping

refresh.go was a 21-line file for one function that clears artwork state
and enqueues -- the same thing Backfill, EnqueueStaleAbsentAll and
EnqueueMissingAll already do next door.

Pure move.

* refactor(artwork): accumulate priority-chain state in one place

Every source in the album and artist chains repeated the same five
lines: stamp the accumulated external failure onto a hit, or OR the
local fault into the running total on a miss. Each new source was a
chance to forget the OR, which is how the local-I/O-settles-absent bug
happened.

chainState.try does both, so each case drops to three lines and the
omission is no longer expressible. Semantics are unchanged: a hit still
carries extErr only. Also drops localErr from resolvePlaylist, which
declared it but never assigned it.

* refactor(artwork): expose housekeeping through the Worker

scheduleArtworkHousekeeping received a *artwork.Worker and then called
CreateDataStore() for a second handle onto the state that Worker already
owns, because Backfill, EnqueueStaleAbsentAll and EnqueueMissingAll were
free functions taking a DataStore.

They are now Worker methods over unexported implementations, the same
shape prune/RunPrune already uses: one public path, and the specs keep
calling the plain function with a mock store instead of standing up a
Worker. Fingerprint is unexported too -- nothing outside the package
used it.

* refactor(artwork): name the service for its domain, not its role

Every other core interface is named for what it is -- Playlists,
Library, Scrobbler, MediaStreamer -- while this one was artwork.Service,
the only X.Service in the tree. It becomes artwork.Artwork/NewArtwork,
and serving.go follows the type to artwork.go.

ProvideImageStore was likewise the only "func Provide" in the repo; it
is GetImageStore now, matching GetImageCache beside it. cmd/wire_gen.go
regenerated via make wire.

* docs(artwork): give each Worker housekeeping method its own godoc

The three methods shared one comment attached to Backfill, so godoc
rendered the other two undocumented and the one it did show described
the group rather than the call. Each now opens with its own name and
says what that call does, including Backfill's bool return.

* refactor(artwork): move fakeFolderRepo to artwork_suite_test.go

Signed-off-by: Deluan <deluan@navidrome.org>

* refactor(artwork): unexport artwork.HashImage function

* fix(log): stop ShortDur eating significant trailing zeros

TrimSuffix(s, "0s") was meant to turn "4h0m0s" into "4h", but it strips
any trailing "0s"/"0m" -- so 10s logged as "1", 20s as "2", 1m30s as
"1m3", 2h30m as "2h3", and a zero duration as the empty string. Every
elapsed/duration field in the app was affected.

The suffix now has to include the preceding unit, so only a whole
zero-valued component is dropped. The existing table only covered values
that dodge the bug (4m, 4h, 4m3s); added the ones that don't.

* feat(artwork): prefix every log message and time the slow steps

Prefix: 22 messages still logged unprefixed, so a line from this package
was indistinguishable from any other subsystem's. All 40 now carry
"Artwork: ", matching Scanner:/API:/Watcher: -- which earns its place
because DevLogSourceLine is off by default.

Timing on what can actually be slow: total per acquisition (on every
exit, failures included), the read that also covers the provider
download, hashing, decode+blurhash, resize, drain batch, precache,
prune, backfill, and the external agent call -- with the rate-limiter
wait counted separately, since a throttled agent and a slow one look
identical from the drain.

Debug coverage for states that were previously silent: dedup hit vs
decode, settling absent, serving a lower-priority source after an
external failure, retry scheduling with attempts and budget left, giving
up when the budget runs out, breaker open/close per agent, provisional
read-through, dangling state rows, and the mtime mismatch that makes art
appear to vanish. outcome gained a String() so it reads as a name.

* refactor(artwork): log decoded dimensions as fields, not a formatted string

fmt.Sprintf ran on every newly-decoded image even with Debug off, since
Go evaluates log arguments regardless of level. Separate width/height
fields also query better than a "300x300" string.

Correction to e0f1acd1a's message: it said "all 40" messages carry the
prefix. The package has 68 log call sites and 62 distinct messages; 40
was only what the test suite happened to exercise. The sweep itself was
complete -- zero unprefixed messages remain.

* fix(subsonic): stop serving artwork for a deleted radio

artworkAccessible checked every kind except radio, which fell through to
the default "no per-user access control" branch and returned true without
a lookup. Radio deletion removes only the entity row -- item_artwork and
the uploaded file survive until the next prune -- so the old ra- id kept
serving the removed radio's image for up to a day.

This is a regression against master, where newRadioArtworkReader loaded
the radio first and returned its error, so deletion took effect at once.
Radios stay globally visible; only existence is checked.

CreateMockedRadioRepo left Data nil, so its own Put panicked on first
use; initialized it.

Reported by Codex on #5847.

* fix(artwork): stop serving artwork for entities that no longer exist

Artwork state and its bytes outlive a deleted entity until the next
prune (@daily), and the serving path consulted only item_artwork, so a
Subsonic id or a signed public token kept serving a removed entity's
image in the meantime. Master's readers loaded the entity first, so this
was a regression.

The check goes in serveHash, the one path that can hand back a found
row's bytes: absent rows are already unavailable, and the provisional
and disc paths load their entity to resolve at all. Doing it there
instead of per-handler also settles who owns the invariant. Subsonic had
worked around it with artworkAccessible, whose comment described the
service "bypassing the library and private-playlist filters"; that
workaround is now deleted, since the service resolves through the
request-scoped repositories and enforces the filters itself.

Because those repositories are ctx-scoped, each caller says what it
wants by what it passes: Subsonic hands over the request context and so
gets visibility as well as existence, while the public image route
elevates like the Jellyfin one already did -- a token is the
authorization there, and a visibility check would hide a shared private
playlist, the very case shares exist for.

Two supporting fixes. albumRepository.Exists and mediaFileRepository
.Exists used the plain exists() helper, which applies no library filter,
so they reported rows in libraries the caller cannot see; they now count
through applyLibraryFilter as CountAll and artistRepository.Exists
already do. Neither had a production caller. RadioRepository gained the
Exists it lacked.

Tests follow the layers: the service refuses a found row whose entity is
gone, the repositories hide rows the caller may not see, and the
handlers only assert the context they hand over. Jellyfin needed no
change -- resolveArtworkID probes the entity tables, so a deleted item
yields an empty artwork id -- but that protection was incidental and
untested, so it is pinned now.

* fix(playlist): rebuild the generated cover only when the tracks change

The enqueue sat in refreshCounters, which Put also reaches for an
ordinary metadata update, so renaming a playlist or editing its comment
re-resolved the cover. The 2x2 grid samples albums with random(), so
that silently handed the playlist a different cover for an edit that
touched no tracks -- and refetched remote artwork to do it.

It now happens where the track set actually changes: addTracks (which
Put-with-tracks and updatePlaylist both funnel through) and renumber
(reached from removeOrphans). Creation still enqueues even with no
tracks, since an imported m3u can carry an ExternalImageURL.

Reported by Codex on #5847.

* style(artwork): trim verbose comments to the 1-2 line budget

Comments only; no executable code changed. Verified by comparing the Go
token stream of every touched file before and after: identical.

Removes 375 of the 1104 comment lines this branch added, targeting content
that belongs in a commit message or PR body rather than in the code:
rejected alternatives ("DeleteIfUnchanged, not Delete", "Waking all beats
routing by kind"), refactor history ("as the legacy reader did"), issue
references (#5798, #5597, #5376), benchmark numbers (~400ms, ~16k allocs),
and four persistence doc comments that duplicated the interface godoc in
model/artwork.go verbatim.

Comments predating this branch are left untouched.

The ASCII fixture trees in the e2e suites are deliberately kept above the
line budget: they diagram the fixture layout with its expected outcomes,
and every pre-existing block in those files carries one.

* test(artwork): make the artists-first backfill assertion non-vacuous

The follow-up loop could never fail: once the first "ar" index is asserted
to be 0, every non-"ar" element is necessarily at an index greater than 0.
A sequence like ["ar", "al", "ar"] passed both assertions, which is exactly
the interleaving the check exists to forbid.

Assert the partition directly instead: nothing after the first non-artist
call may be an artist. Verified by mutation — enqueueing artists a second
time after albums now fails the spec.

* refactor: use stdlib slices/maps and utils helpers in artwork code

Mechanical cleanups, no behavior change:

- 15 copies of the same id-extraction loop collapse to slice.Map (5 repo
  mocks, the scanner's track sweep, 4 wantIDs assertions) and slice.ToMap
  (6 index-by-id loops in the hydration specs).
- disc.go built a map[string]bool purely to dedup folder ids and then
  walked it back into a slice; slice.Unique says that directly.
- folders_artist.go's image filter is slice.Filter over model.IsImageFile.
- mock_artwork_repo deleted from a map while ranging it; maps.DeleteFunc
  states the intent.
- sort.Slice -> slices.SortFunc + cmp.Or; math.Min/Max -> builtin min/max;
  make+copy -> bytes.Clone; strings.Split -> SplitSeq on a per-request
  path; three-clause pixel loops -> for range.
- Reuse utils.BaseName where a stem was recomputed by hand. Not at
  playlist_cover.go:27: that path is a full OS path and utils.BaseName
  uses path.Base, which does not split backslashes.
- Drop a dead nil-guard in agents.go: getAgent returns a bare nil
  interface, and a type assertion on nil already yields ok == false.

cmp.Or was rejected for the gate fallback (func types are not comparable,
does not compile) and for ItemArtwork.AttemptedAt (cmp.Or compares
time.Time with ==, which includes loc; IsZero does not).

* refactor(persistence): collapse the four hydrateArtwork copies into one generic

album/artist/playlist/radio each carried the same eight lines, differing
only in element type and model.Kind. hydrateItems takes a ref callback
yielding an item's id and the ItemImage to fill, which is all that varied.

The len()==0 guards drop out: hydrateItemImages already short-circuits an
empty id list, and both loops are no-ops on an empty slice. applyItemImage
stays as-is; hydrateMediaFileArtwork and its own specs still use it.

* perf(scanner): stop reprocessing album and artist artwork on every full scan

A full scan re-imports every track, so the per-entity artwork enqueue in
persistChanges fired for every album and artist in the library — measured as
100% of both on a live instance, and ~8.5k artists / ~16.7k Deezer fetches on a
96k-file library. Re-importing a track is no evidence the art changed: artist
art has no track-content source at all, and the albums re-derived to identical
hashes across three consecutive scans.

Enqueue through EnqueueIfMissing on a full scan, which anti-joins item_artwork
so only entities that never resolved are queued. Incremental scans keep the
unconditional Enqueue, where a re-import does mean the file changed. Doing this
at the enqueue site rather than skipping it wholesale keeps a first scan filling
in covers as it walks, instead of stalling every cover until the scan ends.

EnqueueMissing grows a priority argument and runs once at end of scan, so an
entity phase 1 never saw still resolves, at Scan priority rather than dropping
to Recheck behind the backfill.

* refactor(artwork): derive blurhash components inside Encode

Components had a single caller, which only ever fed it the bounds of the image
it then passed to Encode. Exporting it gave callers two ways to get it wrong —
components mismatched with the image, or out of the 1..9 range — in exchange for
a knob nobody turned.

Derive them from img.Bounds() at the top of Encode and unexport the helper. The
counts must come from the pre-downscale bounds: downscale's integer rounding can
shift the ratio across a component boundary, and the hash is a client-side cache
key. Verified byte-identical over 18 hashes spanning 9 aspect ratios.

The out-of-range validation goes with it, being unreachable once the counts are
always derived. The aspect-ratio table now asserts through Encode's size flag,
which encodes (x-1)+(y-1)*9.

* refactor(ui): replace the blurhash package with a local decoder

The UI pulled in the `blurhash` dependency for one function, `decode`, called
from a single component. The decoder is ~80 lines of well-specified arithmetic,
so carrying a dependency for it costs more in supply chain and bundle than it
saves.

Equivalence was proven against the package before removing it: 84 hashes — three
real ones plus every component count from 1x1 to 9x9 — decoded at six sizes,
compared byte for byte, plus parity on which malformed inputs throw. Those pixel
values are now pinned in the spec, so drift from the reference algorithm fails.

The punch parameter is dropped rather than reproduced: no caller passes one, and
the package applies `punch | 1`, which silently turns a punch of 2 into 3.

* refactor: simplify the artwork enqueue and blurhash paths

Cleanup pass over the three preceding commits.

Tabulate the cosine terms in the UI blurhash decoder instead of calling Math.cos
per pixel per component: 248us -> 75us for a 32x32 decode, and an album grid
mounts one decoder per tile. Output is unchanged, which the pinned pixel specs
enforce. The Go encoder already tabulated the same terms.

Drop the dead paths that deriving components inside Encode left behind: the
zero-size guard in components, the post-downscale empty check, and the
no-AC-factor branch, which cannot be reached now that the counts are always at
least 1x9. The empty-image check moves ahead of the derivation, where it belongs.

In the queue mock, look up item_artwork by its existing iaKey rather than
scanning the map, and hold the lock across EnqueueIfMissing through a shared
unlocked helper instead of releasing it mid-operation. Extract the duplicated
drain-and-resolve block in the scanner specs into one helper.

* fix(artwork): refresh songs when their album's artwork changes

A track with no art of its own is served its album's, so hydration copies the
album's hash onto the track record. When an album resolution changed, the worker
broadcast only an `album` refresh, leaving song and now-playing surfaces holding
the previous hash-suffixed URL until something else refetched them.

Pair the album refresh with a song one. The dependent id list is unbounded — an
album has arbitrarily many tracks and a drained batch arbitrarily many albums —
so this refreshes the resource as a whole via the protocol's existing wildcard
rather than enumerating ids.

Reported by Codex on #5847.

* feat(persistence): log SQLite result codes on failed statements

SQLite reuses one message for errors that need different responses: "database
is locked" is both SQLITE_BUSY, which busy_timeout retries, and
SQLITE_BUSY_SNAPSHOT, which it can never retry because the transaction's read
snapshot is already stale. Reading only the message, the two are
indistinguishable, and a lock error seen in the wild could not be diagnosed
without guessing which one it was.

Add db.ErrorCodes to unwrap a sqlite3.Error and report its result and extended
result codes, and include them in the SQL error log. The helper lives in db
because that package already owns the driver, so persistence does not need to
import it. Constraint, readonly and disk-full errors share messages the same
way, so this applies to every failed statement, not just locks.

* fix(ui): keep the Random grid blank while a refresh re-rolls

Refresh bumps the list version, which changes the random seed and remounts the
grid. useRollChanged tracked the seed on screen in a ref inside the grid, so the
remount started it empty and adopted the new seed on the first render, while the
refetch had not begun and the store still held the previous roll. The grid
painted the old albums for the length of the request and swapped when the new
roll arrived.

Move the ref up to AlbumList, which a refresh does not remount, and pass it to
the grid and the pagination. The seed on screen then survives the remount, so a
refresh reads as a re-roll and blanks until the new roll lands. A search
keystroke keeps the seed and still leaves the grid in place.

* fix(ui): keep the album grid working outside the Random list

Hoisting the shown-seed ref into AlbumList made the prop mandatory in practice:
ArtistShow renders the same grid through ReferenceManyField and passes no seed
tracking, so useRollChanged dereferenced undefined and the artist page died with
"Cannot read properties of undefined (reading 'current')".

Own a ref in the grid when none is passed. A caller with no roll to track then
behaves as it did before, while the Random list keeps the ref that has to outlive
the refresh remount.

* refactor(config): make the artwork tuning options dev flags

ArtworkWorkerConcurrency and ArtworkExternalMaxRPS become
DevArtworkWorkerConcurrency and DevArtworkExternalMaxRPS, joining the
other DevArtwork* flags. Their defaults should not need tuning, so they
do not belong in the documented, user-facing option set.

* refactor(artwork): name the hashed image store folder for how it is addressed

The content-addressed store sat in artwork/store/, which did not
distinguish it from the artist/, playlist/ and radio/ upload folders
beside it — those hold artwork too. It is now artwork/hashed/, naming the
one property that sets it apart, and the path comes from a consts entry
rather than a bare literal, matching how the sibling folders are built.

Deliberately not under cache/: that folder holds resizes that rebuild
offline from a local source, while this one holds the only local copy of
externally fetched images, whose re-fetch depends on a third party still
serving them and whose bytes back the stored blurhash and dimensions.

No migration: anything left in the old artwork/store/ is orphaned and
re-resolved into the new location.

* refactor(artwork): call the album e2e helpers by their real names

album_test.go aliased expectAlbumFolderCover and expectAlbumAbsent to
shorter local names, which cost a lookup to resolve and hid the prefix
that distinguishes them from the artist and playlist helpers.

* test(artwork): cover the album-root and artist-folder path arithmetic

The unit specs for these helpers lived in the readers #5856 patched, both
deleted here, leaving the album-root promotion and the artist-folder climb
covered only end-to-end. A layout can show which image won but not why, so
these pin the parts behind it: that the parent is fetched only when it could
qualify as an album root, that a failed fetch propagates or degrades, and
that commonDir keeps a shared name fragment from reading as a shared folder.

Each spec was checked against a mutant: removing the library-root guard, the
other-album audio check, the single-folder short circuit, the single-root
climb, or commonDir's separator all turn one red.

Master's remaining specs were dropped as redundant — they cover sources this
branch already exercises under different names.

* fix(ui): stop artwork refreshes reloading the whole page

Resolving an album broadcast song:["*"], because a track with no art of its
own is served its album's and the dependent ids are unbounded server-side.
useResourceRefresh checked for that wildcard across every resource in the
payload, not just the ones a component shows, so the album grid called
refresh() — a full page reload — for every drained batch. Upgrading a large
library reloaded the grid thousands of times.

The client knows what the server cannot: which tracks are loaded, and their
albumId. So the fan-out moves there, the wildcard check is scoped to watched
resources, and the backend now names only what it resolved.

The playlist views watch playlistTrack too: their rows carry albumId but are
keyed by playlist entry, so a song refresh never reached them — previously
masked by the wildcard's page reload.

Signed-off-by: Deluan <deluan@navidrome.org>

* fix(ui): stop the album grid blanking its covers on refresh

Cover takes its height from react-measure, which reports nothing until it
re-measures. That was harmless while the cover class sat on the img itself,
which has intrinsic size; it now sits on the Artwork root, whose img fills it
absolutely and so lends no height. A refresh remounts the tiles, and for the
frame before measurement lands the box collapsed to zero and every cover
vanished.

Give the box its own aspect ratio as a floor. The measured height still wins
once it arrives.

* refactor(artwork): drop the unused Bump/wake path from the worker

Worker.Bump had no production callers. Every real bump writes the queue row
through the repository instead: artwork.Refresh (the refresh endpoint and the
uploader), service.enqueue (read-through and stale-absent views), and
radio_repository. None of them wake a pool.

Bump was also the only sender to drainPool.wake, so the select case it fed was
unreachable outside tests, and runPool read as if a bump were picked up
promptly when it always waited for the 5s poll.

The e2e and unit suites used Bump only as a driver, never as the subject, so
they now enqueue with EnqueueBump and exercise the path production takes.
EnqueueBump rather than Refresh because Refresh also clears the state row,
which would change semantics for the re-bump-after-state and dedup specs.

Both harnesses start Run after enqueueing, so a fresh pool drains on its first
iteration and the wake never affected them: core/artwork/e2e averaged 3.26s
before and 3.30s after over 5 runs, within noise.

Signed-off-by: Deluan <deluan@navidrome.org>

* refactor(artwork): unexport what nothing outside the package calls

PlaceholderFor had no callers at all. Its comment offered it to callers that
must not consult persisted state, but no such caller was ever written, so it
is removed rather than unexported.

entityExists and encode83 are only reached from inside their own packages;
their tests are package-internal (artwork) or never touch them (blurhash_test).

ImageStore stays exported: server/subsonic/e2e constructs one to wire up the
worker, and that suite cannot move into package artwork.

Signed-off-by: Deluan <deluan@navidrome.org>

* refactor(persistence): name the backoff-preserving enqueue for what it does

EnqueueBump was named for a priority, but its behaviour is preserving an
existing row's retry_at; the priority comes from the item. Its one caller
passes ArtworkPriorityScan, which read like a bug at the call site and is not.

The three DO NOTHING inserts each repeated the INSERT prefix, the column list
and the conflict clause. They now share insertIfNotQueued, with the CTE that
EnqueueIfMissing needs passed as a prefix, and the column list lives in one
slice used by both squirrel and the raw SQL.

EnqueueIfMissing had no test against real SQL, only a mock mirroring the
anti-join by hand, so the rewritten statement had nothing verifying it. Two
specs now cover it: items with a state row are skipped, and an already-queued
row keeps its priority.

Signed-off-by: Deluan <deluan@navidrome.org>

* test(thumbhash): vendor the reference and generate golden vectors

* test(thumbhash): add a faithful reference port as the differential oracle

* fix(thumbhash): re-condition alpha fixture and assert solid.png header

alpha.png varied only alpha over a constant color, so compositing atop the
average canceled L/P/Q exactly like solid.png, leaving it just as float-noise
unstable and silently dropping alpha-path coverage. Vary R/G/B with position
too so alpha.png carries real signal and reproduces byte-exactly, then
replace the blanket solid.png skip with a precise assertion on its
well-conditioned header bytes and quantized-zero scales.

Also apply a range-over-int modernizer hint in reference_test.go.

* test(thumbhash): dither the fixtures so no DCT coefficient is degenerate

The gradient fixtures are smooth analytic ramps, and alpha.png's alpha channel varied
along x only. Both make whole families of DCT coefficients mathematically zero: 13 of
alpha.png's 38 AC nibbles, and at least one in every other ramp fixture.

A zero coefficient normalizes to exactly the 0.5 midpoint, i.e. 15*f = 7.5, so which of
nibble 7 or 8 it quantizes to is decided by ~1e-16 of float rounding noise. Those nibbles
are therefore unstable across any two summation orders -- the vendored JS and the Go port
already disagreed on solid.png for this reason -- and they carry no signal, so a bug that
transposed two of them would be invisible.

A deterministic +/-4 dither, plus an alpha ramp that varies in x and y, leaves every
coefficient at least 4.8e-5 from the tie boundary: ~1e9 times the observed inter-
implementation noise. solid.png and tiny.png regenerate byte-identical and keep their
existing carve-outs.

* feat(thumbhash): add a two-pass separable ThumbHash encoder

Encode replaces the reference's four w*h scratch arrays (~320 KB at 100x100) and its 40
re-reads of every pixel with a single pixel pass that folds each row into per-frequency
sums, then a second fold over rows. The transform drops from O(terms * pixels) to
O(nx * pixels + terms * h), nx <= 7.

Verified against the vendored JS goldens and, differentially, against the literal Go port
on 500 randomized images. On the fixtures the two implementations' AC coefficients agree
to 8e-15; the separable inner loop reassociates the additions, so exact agreement holds
only where a coefficient is not sitting on a quantization tie, which is why the fixtures
are now dithered.

* test(thumbhash): fuzz the opaque path and drop an ill-conditioned golden

The 500-image randomized differential filled every byte randomly, so hasAlpha
(avgA < w*h) was true for all 500 images: the 7x7 no-alpha layout, terms(7,7),
nx=7 and the `if hasAlpha` false branch were never fuzzed. Force full opacity on
alternating iterations, which splits the run 250/250 with the seed and iteration
count unchanged. All 500 still match the reference port.

tiny.png is 1x1, so it has no non-zero AC content: 12 of its 37 AC coefficients
sit exactly on the round(15*f) = .5 tie and 24 are within 1e-12. It passed only
because a single pixel admits no summation reassociation. Give it the same
header-only carve-out solid.png already had, in both test files. The four
well-conditioned fixtures keep strict full byte equality.

Also document the divergence class on Encode itself rather than only in test
comments, add a sub-image regression spec, and use the max builtin over
math.Max. The toNRGBA Rect.Min gate turns out to protect nothing — SubImage
re-slices Pix so Pix[0] is the Rect.Min pixel and the loops read it correctly
either way — so its comment, which claimed the opposite, is corrected. The gate
is kept for now; removing it is a separate call.

* test(thumbhash): benchmark against blurhash at the pipeline input size

* feat(artwork): persist a thumbhash alongside the blurhash

The artwork table is content-addressed, so this costs one row per unique image
rather than per entity. Measured on a 25k-image library: +0.6MB on a 727MB DB.

The column is added to the existing add_artwork_tables migration rather than a
new one, since #5847 has not been released and the table it extends ships in
that same PR.

* feat(artwork): hydrate and expose thumbHash on every entity

ItemArtworkInfo.Image() is the single projection every hydration branch goes
through, so adding the field there covers albums, artists, playlists and both
the own-art and inherited media-file branches.

* feat(artwork): encode blurhash and thumbhash from one 100px thumbnail

thumbnailSize drops 128 -> 100 so a single CatmullRom scale feeds both encoders;
thumbhash hard-rejects anything larger and a second downscale would cost more
than shrinking the shared one.

decodeArtwork on a 1000x1000 JPEG, before -> after:
  15.53ms -> 15.45ms/op, 5878122 -> 5014796 B/op, 37 -> 75 allocs/op

Time is a wash because the JPEG decode dominates; the 863KB drop is the smaller
thumbnail more than paying for thumbhash's added work.

This rewrites every blurhash value, so it must land before #5847 reaches a
release: Finamp keys its cover cache and download dedup on that value.

* feat(ui): use thumbhash for the cover loading placeholder

Adds a local decoder rather than the thumbhash npm package, matching the local
blurhash decoder it replaces. Pixels are pinned against evanw/thumbhash's
reference decoder via the vendored copy already in the encoder's testdata.

Unlike a blurhash, a thumbhash carries its own approximate aspect, so a record
with no dimensions now falls back to that instead of to a square.

The blurHash API field stays: Jellyfin clients and third-party native clients
still consume it.

* perf(artwork): hand both hash encoders one NRGBA thumbnail

makeThumbnail emitted a premultiplied *image.RGBA, so thumbhash allocated and
un-premultiplied a full copy on every image while blurhash paid nothing. It now
emits *image.NRGBA, which thumbhash wants as-is, and blurhash reads that type
directly, premultiplying per pixel to keep its output identical.

thumbhash.Encode at the pipeline's 100x100 input:
  134200 -> 95300 ns/op, 56188 -> 15163 B/op, 37 -> 35 allocs/op
decodeArtwork on a 1000x1000 JPEG:
  5014796 -> 4973800 B/op, exactly the conversion that is gone

The scaler costs the same into either destination (7.33ms vs 7.34ms measured),
so no time is traded for this.

* test(artwork): drop the decodeArtwork benchmark

It existed to capture the before/after baseline for the 128->100 thumbnail
change, which it has served. As an ongoing guard it is misleading: a 1000x1000
JPEG decode is ~97% of the 15ms it measures, so the two encoders it would be
reached for are ~2.6% of the signal. It reported a phantom 2.8% regression for
the NRGBA thumbnail change that isolating the scaler disproved.

The per-encoder benchmarks in blurhash/ and thumbhash/ cover the part that
actually changes.

* test(artwork): benchmark both hash encoders from one file

benchImage and BenchmarkEncodeAtInputSize existed in both encoder packages, and
blurhash's copy had drifted into a third inline duplicate once both benches
moved to NRGBA input.

The head-to-head now lives in core/artwork, which already imports both encoders
and can pin the input to the real thumbnailSize constant. The gradient builder
moves to tests, which both packages already import via their suite bootstrap.

thumbhash keeps a shipped-vs-reference benchmark, since referenceEncode is
test-only and cannot be reached from core/artwork.

* test(thumbhash): drop the shipped-vs-reference benchmark

The two-pass rewrite's advantage over the naive port is already recorded in its
commit message; carrying the benchmark to re-derive it has no ongoing use.

reference_test.go stays: besides the benchmark baseline it holds the
differential oracle the golden-vector and randomised specs assert against.

* test(thumbhash): assert against reference goldens, drop the Go port

The reference port existed to be a differential oracle, but its packing half was
a verbatim copy of production pack(), so it was not as independent as it looked.
Only the 500-image randomised spec needed it; the six PNG fixtures cannot reach
random sizes, aspects, or both coefficient layouts.

gen_generated.mjs now emits 300 vectors from evanw's actual JS. Their pixels are
a pure function of their index, so Go rebuilds them byte-for-byte and only the
hashes are committed (16KB). The oracle is now the reference itself rather than
a hand transcription of it.

Also from the cleanup pass:
- maxCX/maxCY scanned every term to recover a bound that is just the widest
  coefficient region
- tests.GradientImage duplicated generateGradientImage three files away
- BenchmarkHashEncodersAtInputSize was also BenchmarkHashEncoders/*/100x100
- processor had two internal test files with no rule for which gets a new spec
- three blurhash specs differing only by alpha became a DescribeTable
- the shared mock's GetInfoForItems projection had drifted from the real query

* refactor(model): keep the blurhash off native JSON and fold its specs

Nothing on the native API consumes blurHash: the web UI reads thumbHash, and
Jellyfin's mappers take the Go field directly rather than through this
serialization. It was shipping ~40 unused bytes on every row of every list
response, on a surface that accretes clients once published.

The JSON specs were five marshal-and-check-keys blocks over the same struct;
they collapse to one populated case, one bare case, and a guard that the
blurhash stays off the wire.

* refactor(persistence): simplify the artwork dangling-row purge helper

purgeDangling took a bound executeSQL method value and a table name only because
its two callers live on unrelated types. Neither parameter was load-bearing:
executeSQL is a value receiver on sqlRepository that never reads tableName, and
both callers already hold an sqlRepository whose tableName is the table being
purged. Taking that struct collapses both parameters into the receiver.

itemArtworkSQL wrapped sqlRepository without adding a single method, so the items
field becomes a plain sqlRepository.

danglingItemArtworkKinds is also read by EnqueueAllMissing, which enqueues
entities that have no artwork row yet - neither a purge nor anything specific to
item_artwork. Renamed to artworkOwnerTables to describe both of its uses.

* fix(artwork): keep sweeping past a store file that cannot be removed

Sweep returned the os.Remove error straight out of WalkDir, so a single
unremovable file abandoned the rest of the walk. Every later orphan, stale mime
variant and abandoned temp file then survived until the next prune, which would
abort at the same place.

Warn and carry on instead. The orphan-file loop in prune already had this
resilience; Sweep is where it belongs, since it is the only step that reaches
stray files and superseded variants.

* refactor(artwork): let the sweep reclaim orphan files instead of prune

Deleting unreferenced artwork rows took five round trips: snapshot the orphan
hashes, fetch their mimes, delete, re-fetch to see which rows actually went, then
remove each file. The last four exist only to work out which files to delete -
but the sweep that runs moments later already derives exactly that from the
database, since GetAllMimes is read after the delete and Sweep removes any file
whose hash has no row, under the same mtime guard. The sweep is also the more
thorough of the two: it reclaims stale mime variants of an orphan hash, which the
per-hash removal never looked at.

Delete the rows in one predicate-only statement and let the sweep follow. The
orphan predicate now runs once per prune instead of once for the snapshot plus
once per 200-hash delete chunk, and with no hash list to bind there is nothing
left to chunk.

GetOrphanHashes and GetImages had no other caller and are gone. Dropping them
also removes the mock's OrphanHashes lever, which let a spec declare a hash
orphaned while item_artwork still referenced it - a state the SQL repository
could never produce, since both predicates were always identical.

* refactor(model): name the artwork mime lookup for what it is keyed by

GetAllMimes reads as a collection of mime types; it returns a hash -> mime index
over every stored artwork. GetMimeByHash names the key, matching the convention
the other map-returning repository methods already follow (CountBySuffix,
CountByClient).

* refactor(artwork): split the repository's deletes from its purges by name

Six removal methods across the two artwork repositories used Delete and Purge
interchangeably, so neither prefix told you anything. There is a real distinction
underneath: Delete methods are caller-directed and take the rows to remove, while
Purge methods are garbage collection - the repository finds rows whose referent
is gone by joining against the owning table, and returns a count because the
caller cannot know one. The signatures already followed that split; only the
names did not.

DeleteOrphans was the odd one out, taking a grace cutoff rather than a target and
returning a count, so it becomes PurgeOrphans. PurgeDanglingItemArtwork loses the
Artwork it repeats from its own interface and keeps the Items that says which of
that interface's two tables it means.

DeleteForItem was DeleteForItems with one id - squirrel emits = for a scalar and
IN for a slice against the same predicate - so its one caller passes a slice
instead. Dangling and Orphan stay distinct: dangling is a row whose entity is
gone, orphan is an image no state row references.

* refactor(artwork): drop the orphaned store remover, aggregate sweep failures

Review follow-ups to the prune rework.

ImageStore.Remove lost its only production caller when the sweep took over
orphan-file reclamation. It carried its own copy of the mtime guard that now
lives solely in Sweep, so the two could drift, and it stood as an invitation to
grow a second reclaim path. Its specs either duplicated Sweep's own coverage or
tested nothing else, so they go with it; the one unrelated test that used it to
delete a file calls os.Remove directly.

Sweep warned once per file it could not remove, which is fine for a stray
permission bit and useless for a store mounted read-only - a large library would
emit one line per aged file on every prune, and prune would still report success.
Count the failures instead and warn once, with the count and the last error, so a
systemic failure is legible without drowning the log.

Also: the orphan log line counts rows, not files, and now says so; and the
blocked-removal spec asserts its two fixtures really do land in different shards,
since the assertion is vacuous if they collide.

* fix(ui): show the placeholder when a refresh swaps in an uncached cover

A cover whose hash changed under a mounted grid went blank for the whole fetch,
instead of falling back to its thumbhash. Artwork decided 'this blob was already
cached, skip the placeholder' once at mount and never revisited it, so every
later url for that record inherited the answer.

The fix has to live in useImageUrl. imgUrl is state cleared in an effect, so on
the render where url changes it still holds the previous url's blob - any caller
inspecting it reads the new url as already cached. Only the hook can see
cache.get(url) for the url actually being rendered, so it now reports fromCache
and resyncs its state during render rather than one render later.

Two shapes were tried and rejected against a live server before this one: a ref
recomputed per url, which a render-phase resync discards without rolling back the
ref, and the same tracking in Artwork state, which still samples imgUrl before
React re-runs the component. Verified on a running instance with cover-art
responses held open: the thumbhash now covers the whole window and stays under
the image until the fade ends.

* fix(ui): keep the placeholder for a cover whose fetch failed

useImageUrl caches a failed fetch as an entry with no blob, so treating every
cached entry as instantly painted suppressed the placeholder on remount: the
cover became an empty box instead of falling back to its thumbhash. Only a
cached blob counts as instant.

Caught by Codex on the previous commit, which introduced fromCache with the
looser predicate.

* feat(artwork): capture each image's dominant colour

A flat colour is the one placeholder a client can paint with no decoding at all,
so it can cover the frames before a thumbhash canvas even renders. Extract it
from the same 100px thumbnail the two hash encoders already share, and expose it
as dominantColor on the native API.

Dominant means presence, not salience: the largest cluster wins, so a white
sleeve reports white. That is what a placeholder needs. An accent colour is the
opposite question and is deliberately not answered here - it depends on the
client's theme, and by the time a client needs one it has the cover pixels and
can compute whatever suits it.

Bins at 4 bits per channel, then merges perceptually-near bins in Oklab before
picking the winner: a gradient splits across adjacent bins and would otherwise
lose to a smaller flat region. Measured at 246us per image on the weakest target
hardware we care about (Celeron N5105), against ~15.8 images/s for the pipeline
around it.

The column goes into the feature's original migration rather than a new one:
computing it later would mean re-decoding every image in the library.

* fix(artwork): ignore image candidates that cannot be fetched

bestImageURL only rejected URLs that url.Parse itself refuses, which is almost
nothing: relative paths and any scheme parse cleanly. A candidate like
images/big.jpg or ftp://host/big.jpg therefore won on size, and since the
function returns a single URL whose failure ends that agent's turn, the agent's
valid smaller images were never tried.

Two details made it easy to hit rather than theoretical. Size is frequently 0 for
every candidate, and only a strictly larger one replaces the first, so an
unfetchable entry in first position sticks. And these strings come straight from
plugins, where a relative path is an ordinary mistake.

Accept only absolute http/https URLs with a host.

* revert(ui): move detail-page scroll handling to its own branch

Reverts 40153bd43. Scroll position carrying over between pages is stock React
Router behaviour rather than something this branch introduced, so the fix does
not belong in an artwork PR that is otherwise ready for review.

The work continues on fix/scroll-restoration, off master, where it grew into
per-route restoration: a new page starts at the top and going back returns to
where you were, which the scroll-to-top could not do.

* fix(ui): fade cover art consistently, and shorten the fade to 150ms

The <img> mounts with its blob URL already set, so onLoad often fires in the
same frame the element is inserted. The opacity:0 start state never gets
painted, the transition has no value to animate from, and the cover pops in
instead of fading. Only tiles whose decode happened to straddle a paint
boundary actually faded, which made a grid load look ragged: 4 to 6 of 18
covers faded, varying between runs.

Deferring the decoded flag by two animation frames guarantees the hidden state
is painted first. Measured on a live grid afterwards, 17 of 18 covers fade, the
18th having a cached blob and taking the intentional instant path, and the tail
after the last byte arrives drops from ~440ms to ~163ms.

The duration also drops from 500ms to 150ms. That 500ms mirrored master's fade,
but master paints no placeholder behind the image and needs a slow blend to
cover a blank tile. Here a thumbhash already fills the gap, so a long crossfade
only delays the grid settling, measured at 145-190ms slower to full opacity
than master.

---------

Signed-off-by: Deluan <deluan@navidrome.org>
2026-08-09 15:03:27 -04:00
Deluan Quintão
f853ca604a
refactor(db): migrate all ids to a uniform canonical 128-bit base62 encoding (#5824)
* refactor(model): extract canonical 128-bit base62 id codec

* feat(model): generate random ids as canonical 128-bit base62 values

* feat(scanner): emit legacy PIDs in canonical base62 encoding

* feat(db): add id canonicalization transform for the uniform-ids migration

* feat(db): migrate all ids to canonical 128-bit base62 encoding

* fix(db): canonicalize ids in junction tables and JSON columns

* chore(jellyfin): update id-family notes for uniform canonical ids

* test(ids): harden codec input contract and migration edge coverage

* refactor(model): use log.Fatal for Encode128 contract guard per project convention

* fix(db): force full rescan after id migration for legacy PID configs

* test(db): guard id-column inventory against schema drift

* refactor(ids): compile-time Encode128 contract and unified column rewrite helper

* refactor(db): apply review feedback to id migration

Filter empty strings in collectColumn's SQL, reuse a prepared statement
for rewriteColumn updates, and clarify the legacy ID functions' comment
now that they emit the canonical encoding.

* feat(auth): split session and public-link JWT secrets, rotating sessions on id migration

* test(subsonic): initialize public token secret in helpers suite

The suite sets auth.TokenAuth directly instead of calling auth.Init, so the
new PublicTokenAuth was nil whenever Ginkgo's spec order ran a helpers spec
before any spec that calls auth.Init, panicking in publicurl.ImageURL.

* refactor(db): inline canonicalID into its only consumer, the uniform-ids migration

* refactor(model): rename Encode128/Decode128 to Encode/Decode

With every id now exactly 128 bits, the width suffix is redundant; the
package-qualified id.Encode/id.Decode carries the same information.

* test(db): make the id-columns guard classify JSON columns too

The guard only inspected columns named id/pid/*_id, so it could not see ids
embedded in JSON. Widen it to *_ids and to every JSON column, and drive the
"covered" set from a new embeddedIDColumns list instead of the inline calls
in the migration.

Every JSON column the schema has now carries a verdict. The four denormalized
caches -- media_file/album.participants, media_file/album.tags,
album.folder_ids and artist.similar_artists -- hold only artist, tag and
folder ids. Those all come from id.NewHash, whose 22-char base62 encoding of
a 128-bit MD5 is already in canonical range, so canonicalID is the identity
on them and the migration correctly leaves them alone. A new codec test pins
that invariant, since the exemptions depend on it.

Verified on a copy of a 727MB/96k-track production database: canonicalizing
those four columns changed zero rows, and artist, tag and folder ids were
themselves unchanged by the migration (only media_file ids moved, 95108 of
96666).
2026-08-02 12:58:53 -04:00
Kendall Garner
b40b41584a
feat(subsonic): Implement OpenSubsonic topSongsByArtistId extension (#5853)
* implement topSongsByArtistId extension

* do not look up by artist name if empty

---------

Co-authored-by: Deluan Quintão <deluan@navidrome.org>
2026-08-02 12:39:51 -04:00
Kendall Garner
4f29465d27
fix(artwork): do not promote artist folder to album folder (#5856)
* fix(artwork): do not promote artist folder to album folder

* use filesystem join for path instead

* fix(artwork): resolve artist folder for albums with disc subfolders

Dropping the promoted album root from the artist reader's paths fixed the
flat-album case but broke albums whose tracks live in disc subfolders: the
promoted root was what kept the byte-wise longest common prefix on a
directory boundary. Without it, CD1/CD2 siblings share the fragment
"Album/CD", so the artist folder resolved one level too deep and
album/artist.* won over artist.*.

loadAlbumFoldersPaths now collapses each album to its own root before the
paths are compared across albums, so a disc-split album contributes its
album folder rather than each disc folder. Folders no album claims (the
promoted parent) are still returned unchanged, keeping the album, disc and
mediafile readers unaffected. The prefix math moves into commonDir, which
appends a trailing separator so the comparison lands on segment boundaries
- this also fixes sibling folders sharing a name prefix (Album/Album2).

Adds e2e coverage for the case the branch fixes (artist.* with no album/
fallback, which failed before this branch), the disc-subfolder regression,
and a multi-album guard that pins the scope boundary.

* test(artwork): cover artist whose albums are all disc-split

The existing specs cover a single disc-split album and a disc-split album
alongside a flat one, but not an artist where every album is split into
disc subfolders. That layout resolves correctly because the albums diverge
one level above the disc folders, which re-anchors the common prefix - a
property worth pinning so a future change to the path math can't silently
break it.

* fix(artwork): resolve artist folder when albums share a folder

loadArtistFolder decided whether to climb above the common directory by
comparing len(paths) against 2. That count stands in for "how many distinct
album roots are there", and the two diverge when an artist has two albums in
the same folder: the slice holds two identical entries, the climb is skipped,
and the artist folder resolves to the album folder. Deduplicate the roots so
the branch tests the property it means to test.

Replace the includeParent flag with two functions split by audience. The flag
was a caller-identity switch - constant true at the album, disc and mediafile
readers, all of which discard the returned paths, and constant false at the
only caller that reads them. The artist path now has loadArtistAlbumRoots,
which collapses each album to its own root and never consults albumRootParent;
loadAlbumFoldersPaths goes back to taking a single album and always promoting
the parent. Both share the folder load and image aggregation.

This also makes albumRootParent's contract structural. Its guard only rejects
an artist folder when it can find audio outside the album being resolved, so
passing every album of an artist at once made the check meaningless; taking a
single album means it can no longer be called that way.

Drops the per-album grouping and unclaimed-folder reconciliation from the
album path, where the result was discarded, and removes 15 mechanical true
arguments from the tests.

---------

Co-authored-by: Deluan <deluan@navidrome.org>
2026-07-29 21:48:42 -04:00
Deluan Quintão
23548f40a0
fix(share): give visual feedback when downloading from a share (#5865)
* fix(share): give visual feedback when downloading a share

The share page handed the download URL to navidrome-music-player, which fell
through to downloadjs and buffered the whole ZIP into memory via XHR before
saving it. Nothing was handed to the browser until the last byte arrived, so a
large share produced a long silent window with no player feedback and no
browser download UI, inviting repeat clicks that each spawn another server-side
zip+transcode.

Use the player's customDownloader prop to trigger a synthetic anchor instead,
so the browser performs the download and reports its own progress. An anchor
rather than assigning window.location.href: the share page's service worker
registers a NavigationRoute over all navigations, which intercepts the streamed
archive and fails it into the offline fallback (observed as HTTP 503 in Chrome).

handleDownloads now loads the share before streaming so it can set
Content-Disposition and Content-Type. This also fixes error reporting: ZipShare
previously wrote to the ResponseWriter before checkShareError ran, locking the
status at 200, so expired, missing and non-downloadable shares all returned 200.
They now correctly return 410, 404 and 403.

* feat(share): acknowledge the download click in the player

The browser's download UI is the real progress indicator, but nothing in the
page itself reacted to the click, so the moment before the browser catches up
still read as unresponsive. Dim the download button and make it unclickable for
two seconds after a download starts, reusing the JSS function-value pattern the
existing single-track styling already uses.

A repeat download restarts the window instead of extending the original, and
the timer is cleared on unmount. This also blunts repeat clicking, where every
extra click costs another server-side zip and transcode.

Add SharePlayer tests covering the download mechanism and this state machine.
The dimming itself is verified in a browser rather than jsdom: JSS function
values are not evaluated there, so the rule is never emitted and a CSS
assertion would pass or fail for the wrong reason.

Signed-off-by: Deluan <deluan@navidrome.org>

* test(share): assert render counts in SharePlayer feedback tests

The two acknowledgement tests compared the props object across renders, which
React may reuse, so they passed without proving anything and then failed once
the surrounding assertions changed. Count renders instead, and let the pending
timer run out rather than advancing exactly to its deadline, which does not
cross it.

The repeat-download test now also asserts that no render happens at the
original deadline, proving the timer was replaced rather than merely that one
eventually fired.

* fix(share): count one visit per share download

The preflight share load added in this branch made every download record two
visits: handleDownloads called Share.Load, and ZipShare then loaded the share
again internally. Share.Load increments and persists VisitCount, so the counter
advanced twice per download and the repository work was duplicated.

Pass the already-loaded share into ZipShare instead of its id. handleDownloads
is its only production caller, and it now has the share in hand for the
Content-Disposition header anyway.

The archiver test asserts Load is not called, so the double-load cannot come
back unnoticed. Verified against a running server: the counter now advances by
one per download.

* test(share): derive feedback-window timings from the constant

The acknowledgement tests hardcoded clock advances tuned to a 2000ms window.
Raising DOWNLOAD_FEEDBACK_MS to 5000 left them advancing 1500ms and 1001ms,
which no longer reach the deadline they are meant to cross, so the repeat-
download test passed without proving the timer had been replaced.

Export the constant and derive the advances from it, and let the pending timer
run out in the unmount test rather than advancing a fixed amount. Changing the
duration can no longer silently strand a test short of its deadline.

---------

Signed-off-by: Deluan <deluan@navidrome.org>
2026-07-28 16:13:44 -04:00
Deluan Quintão
fed9665060
fix(streaming): surface why a transcode decision failed (#5820)
* fix(subsonic): surface the reason a transcode decision failed

getTranscodeDecision returned a bare "failed to make transcode decision"
with no clue why, and the probe command ran ffprobe with -v quiet, so even
the server log bottomed out at "exit status 1". A user whose files had been
moved by an external tool only saw the opaque error.

ProbeAudioStream now returns a typed ProbeError that separates the file path
from the reason: ffprobe runs with -v error so its stderr diagnostic is
captured, and a missing or unreadable file is reported as "file not found"
rather than ffprobe's misleading "Invalid data found". The handler logs the
full detail (including the path) and returns the reason to the client with
the server path stripped out.

Reported-by: Tolriq (Symfonium)

* refactor(ffmpeg): use errors.AsType for ExitError match

probeErrorReason used the older var+errors.As form while the rest of the
codebase (and its sibling transcodeFailureReason) uses the generic
errors.AsType. Switch to it for consistency; behavior is unchanged.

* fix(subsonic): return error 70 when the source file is missing

A getTranscodeDecision probe failure was always reported as generic error 0.
When the source file is gone (moved or deleted out from under the DB), that is
a not-found condition, so return the standard Subsonic error 70 ("data not
found") instead — matching what the endpoint already returns for an unknown
mediaId. Files that exist but are corrupt or unreadable stay error 0.

ProbeError now wraps the underlying cause and implements Unwrap, so the handler
detects the case with errors.Is(err, fs.ErrNotExist).

* fix(ffmpeg): keep probe error paths out of client-facing reasons

Addresses review feedback on the ProbeError type: the Reason field doubled as
both the log detail and the client message, so an ffprobe launch failure (a
*os.PathError from fork/exec) could leak the ffprobe binary path to clients,
and an unexpected stat error was reduced to "file not accessible" in the log.

Split the two concerns: Reason now holds only a path-free, client-safe string
(built at construction), while Error() logs the full underlying cause. Launch
failures return a generic "could not read file" instead of the raw exec error.
SafeReason no longer does substring path-stripping (removing the empty-Path
edge case); the stripping happens once, against ffprobe's stderr.

* fix(subsonic): don't report a broken ffprobe as a missing media file

Two issues from review of the previous commit:

Code 70 was selected with errors.Is(err, fs.ErrNotExist), but a launch failure
of a deleted ffprobe binary is an *os.PathError that also wraps fs.ErrNotExist.
A server-side ffprobe problem was therefore reported to clients as a missing
media file. ProbeError now carries an explicit NotFound flag, set only on the
file-access branch, and the handler keys the code off that instead of the chain.

ffprobe can also exit 0 while yielding no audio stream (an audio-suffixed
container holding only video). That parse failure was returned unwrapped, so
clients got "internal error"; it is now wrapped in a ProbeError too.
2026-07-19 18:51:32 -04:00
Deluan Quintão
e6597398c2
feat(scrobbler): exponential backoff for scrobble retries during outages (#5818)
* feat(scrobbler): add exponential backoff delay helper

* feat(scrobbler): back off retries up to 4m during outages

* test(scrobbler): verify backoff schedule with synctest; clarify backoffDelay doc

Adds a testing/synctest-based test that drives the real run loop against a
failing service and asserts the exact 5s/10s/20s/40s retry schedule and the
drain-on-recovery reset, addressing the review note that the run loop's
behavior was untested. Also clarifies the backoffDelay doc comment: the
argument is a zero-based retry index.
2026-07-19 13:36:05 -04:00
Deluan Quintão
85132240e0
feat(smartplaylist): per-playlist refreshDelay for stable daily/weekly playlists (#5790)
* feat(utils): add ParseDuration/FormatDuration with day and week units

* feat(criteria): add per-playlist refreshDelay to smart playlist rules

* feat(smartplaylist): honor per-playlist refreshDelay in refresh gate

* feat(subsonic): compute smart playlist validUntil from effective refresh delay

* fix(playlists): reset smart playlist evaluation window when rules change via API

* refactor(utils): flatten FormatDuration recursion, single-pass duration regex

* fix(playlists): address PR review feedback

- Reset EvaluatedAt to nil instead of zero-time on rules change and NSP
  re-import, so getPlaylist(s) never reports year-1 Changed/validUntil in
  the window between an edit and the next owner read
- Parse negative d/w durations so they are rejected with the consistent
  "negative duration" error instead of "unknown unit"
- Quote input in the negative-duration error, matching the parse error
- Gate per-playlist RefreshDelay behind IsSmartPlaylist, matching its doc
2026-07-16 22:20:35 -04:00
Deluan Quintão
27f0210392
fix(scrobbler): tolerate out-of-order playback reports (#5793)
* fix(scrobbler): tolerate out-of-order playback reports

Clients may fire reportPlayback requests concurrently (Feishin sends
'starting' and 'playing' in parallel, and the previous track's 'stopped'
races the next track's start), so reports can be processed out of order.
Two cases corrupted the now-playing session: a late 'starting' for the
track already playing downgraded the session state, freezing position
estimation at 0:00 until the next report; and a late 'stopped' for the
previous track removed the new track's session and dispatched a playback
report mislabeled with the new track's metadata, causing presence-style
plugins (e.g. Discord Rich Presence) to clear or show stale state.

ReportPlayback now ignores a 'starting' report when the session already
has the same track in playing state, and ignores a 'stopped' report for
a track other than the current session's - skipping both the session
removal and the plugin dispatch, while still counting the play and
dispatching external scrobbles for the stopped track.

Reported in https://github.com/jeffvli/feishin/issues/2131

* fix(scrobbler): serialize session writes to close starting/playing race

The out-of-order 'starting' guard checked the session cache before the
media-file load, leaving a window where a concurrent 'playing' report on a
fresh session could write between the check and the write, and still be
overwritten back to 'starting'. Session check-then-write sections are now
serialized by a mutex, with the guard re-checked after the load. Also
tightens the guard comment to say 'playing session', matching the condition.

Found by Codex review on #5793.

* fix(scrobbler): fully exit ReportPlayback when ignoring out-of-order reports

The out-of-order guards used 'break', which only exits the switch, so the
post-switch NowPlaying block still ran for an ignored 'starting' report and
enqueued a NowPlaying dispatch with the stale report's position - potentially
overwriting a pending correct-position entry, since the queue is keyed by
client. Return nil instead, so ignored reports have no side effects.

Found by Gemini review on #5793.
2026-07-16 20:47:47 -04:00
Deluan Quintão
09022b4bd2
feat(jellyfin): AudioMuse-AI compatible sonic endpoints (#5782)
* refactor(jellyfin): inject core/sonic into the Jellyfin Router

* feat(jellyfin): add AudioMuse /info endpoint

* feat(jellyfin): add AudioMuse /similar_tracks endpoint

* feat(jellyfin): gate AudioMuse endpoints on sonic provider

* feat(jellyfin): add AudioMuse /find_path endpoint

* fix(jellyfin): fix case-insensitive route collision across positions

canonicalRouteSegments keyed canonical case by lower-cased segment name
alone, globally. Two unrelated routes sharing a segment name with
different casing at different tree depths (e.g. "Info" in
/System/Info/Public vs "info" in /AudioMuseAI/info) silently overwrote
each other, 404-ing the loser even for exact-case requests. Replace the
flat map with a position-aware trie mirroring the routing tree.

* test(jellyfin): e2e tests for AudioMuse endpoints

* docs(jellyfin): document AudioMuse compatibility endpoints

* test(jellyfin): harden AudioMuse tests and doc note (final-review follow-ups)

- Comment-lock the []string{} (not nil) contract for /AudioMuseAI/info's
  AvailableEndpoints so it keeps serializing as [] rather than null, and
  add a raw-body assertion to the existing empty-list test to catch a
  regression a struct-only unmarshal can't detect.
- Cover the previously-untested engine-error branch in similar_tracks and
  find_path, both of which degrade to an empty result.
- Document that find_path's path/total_distance only reflect hops through
  libraries the caller can access in multi-library setups.

* refactor(jellyfin): dedup AudioMuse test request helper, presize dedup map

* refactor(sonic): expose sonic.Engine interface; drop typed-nil guard in jellyfin.New

The Jellyfin Router's sonic field was an interface but New() took the concrete
*sonic.Sonic, so a nil arg became a non-nil typed-nil and needed a guard — the
only injected dependency that did. Move the interface (sonic.Engine) beside its
implementation, take it in New() like every other service, and bind it in wire.

* refactor(jellyfin): case-insensitive routing via lowercased paths

Replace the position-aware route trie with a trivial middleware that lowercases
the request path, and register every route in lowercase. Simpler, and no segment
name can collide across positions. caseInsensitivePaths moves into middlewares.go
alongside normalizeQueryKeys. Relies on the invariant that no Jellyfin path segment
carries case-sensitive data (all ids are lowercase hex via dto.EncodeID).

* feat(jellyfin): add AudioMuse /health endpoint

A liveness probe matching the reference plugin: 200 with an empty body when a
SonicSimilarity provider is loaded, 404 otherwise. /AudioMuseAI/info now
advertises it (list alphabetized like the plugin's OrderBy).

Also trims the AudioMuse and case-insensitive-routing comments to their essential
rationale.

* fix(jellyfin): hex-encode user IDs so lowercased paths stay valid

Address PR review: user IDs were the one id the Jellyfin API emitted raw (base62,
uppercase-capable), so lowercasing request paths could alter a userId segment. Encode
them via dto.EncodeID like every other id, making the 'all boundary ids are lowercase
hex' invariant true — no routing special-casing needed. Also caps user-controlled n /
max_steps, fixes the songAgent test comment, and adds leading slashes to the README
endpoint list.
2026-07-15 20:44:56 -04:00
Deluan Quintão
3d438b08ef
fix(jellyfin): close the unbounded playlist and search paths left by #5783 (#5784)
* fix(jellyfin): stream playlist tracks instead of loading every one

PR #5783 left the playlist paths materializing: all three loaded every track
of a playlist, whatever the client asked for. A playlist can be the whole
library — a smart playlist matching everything — so this is the same OOM class
that PR fixed for the other collections. Measured on a 96k-track smart playlist,
/Items?ParentId=<playlist>&Limit=10 peaked at 1.3GB to return ten tracks.

Playlist tracks now stream from a cursor, like every other collection:

- PlaylistTrackRepository gains GetCursor and CountAll, sharing the select
  builder with loadTracks so cursor rows hydrate identically, plus
  GetMediaFileIDs for callers that need every id but no track data.
- playlists.Tracks(ctx, id) exposes that repo to the HTTP layer with visibility
  enforced, returning ErrNotFound rather than the repo's nil-and-log-a-warning
  (which /Items would hit on every album browse, since ParentId is usually not
  a playlist).
- /Playlists/{id}/Items now honors StartIndex/Limit, which it silently ignored
  before — it always returned the whole playlist. Real Jellyfin pages it.
- getPlaylist runs an id-only query: PlaylistInfo carries every track id so it
  can't be paged, but it no longer hydrates rows it discards.
- The route joins the throttled group, as it's now cursor-backed.

Measured against a copy of a 96k-track production DB, peak RSS over idle, with
byte-for-byte identical responses on every endpoint:

  /Items?ParentId=<pl>&Limit=10   1275MB -> 1MB    8.8s -> 3.6s (0.27s warm)
  /Items?ParentId=<pl> unbounded  1353MB -> 8MB    8.7s -> 3.4s
  /Playlists/<pl>/Items           1217MB -> 7MB    8.8s -> 3.4s
  /Playlists/<pl>                 1178MB -> 33MB   9.1s -> 3.8s

TotalRecordCount now costs a count query where the old path got it from
len(tracks): 6ms on the largest real playlist in that library (2638 tracks),
288ms on the synthetic all-96k one. The old path paid 1.3GB and 4s+ instead.

* fix(jellyfin): bound unbounded /Items searches

The other collections stream, so an unbounded one costs about one item of
memory. Search can't: the repositories' Search returns a slice, so it
materializes every match. PR #5783 left two ways to reach that.

A whitespace-only SearchTerm was the first. " " != "", so it took the search
path, where doSearch trims it back to empty and hits its "empty query, return
everything in natural order" branch — with no LIMIT, since executeTwoPhase only
applies one when Max > 0. The whole library, materialized. Trimming at the two
parse sites makes the `search != ""` checks mean what they look like they mean:
a blank term is not a search, so it takes the unfiltered streaming path, which
still returns everything, exactly as real Jellyfin does for an empty term.

A real search with no Limit was the second, and needs an actual bound. Search
gets a default of 100 when the client sends no Limit — matching the
DefaultSearchLimit in Jellyfin's unreleased SqlSearchProvider — plus a ceiling,
without which Limit=999999 would still materialize the library. The default
alone wouldn't have closed the hole. An explicit Limit under the ceiling is
honored unclamped, as upstream does; truncating a search is safe in a way
truncating /Items is not, since nothing syncs a library through searchTerm.

Note this is upstream's own bug: v10.11's /Search/Hints returns the entire
library for a whitespace-only term, which master fixed by switching to
ThrowIfNullOrWhiteSpace.

* fix(jellyfin): cap the search Limit the client asked for, not the merge window

searchPage sees two different things in opts.Max: the client's Limit for a
single-type query, and mergeTypes' internal offset+limit window for a multi-type
one. Clamping there hit both, so a multi-type search paging past the ceiling
fetched only `ceiling` rows of the first type and the merged page skipped into
the next one — IncludeItemTypes=Audio,MusicAlbum&SearchTerm=song&StartIndex=2000
&Limit=1 returned an album instead of the 2001st song.

The ceiling now applies where the client's Limit is read: queryItems (after the
playlist branch, so a playlist parent's page isn't capped by a stray SearchTerm)
and getArtists, which reads its own. A limit of 0 stays 0, keeping searchPage's
default. What a deep page materializes is then bounded by the client's
StartIndex, as it already was for any multi-type query, search or not.

Also from review: the playlist-track mock reused the previously stored Options
when called without any, so a later no-args call inherited stale paging.

* fix(jellyfin): apply the search default to the client's Limit, not per type

The default lived in searchPage, which runs per type and after mergeTypes has
already picked its branch. So an unbounded multi-type search left q.limit at 0,
mergeTypes took its chained branch, and StartIndex was applied to a list each
type had already truncated to the default — dropping matches rather than paging
them. With 200 matching songs, IncludeItemTypes=Audio,MusicAlbum&SearchTerm=song
&StartIndex=150 returned nothing at all, and without StartIndex it returned the
default per type instead of in total.

clampSearchLimit now applies the default and the ceiling together, to the
client's Limit, at the two places it's read (queryItems and getArtists). A search
therefore always gives mergeTypes a real window, so it pages the merged result
and cuts it once, at the end.

* fix(jellyfin): bound the multi-type search window against StartIndex

mergeTypes asks each type for offset+limit rows before paginating the merged
list, so a search still materialized whatever StartIndex asked for:
IncludeItemTypes=Audio,MusicAlbum&SearchTerm=x&StartIndex=500000&Limit=1 pulled
~500001 matches per type. Bounding the window alone isn't enough — below it the
merged rows are the client's page, but at it a truncated type is followed by the
next one's rows, which is what made a clamped window serve an album where the
2001st song belonged.

So the window is capped at maxSearchLimit and the page is clipped to it: pages
below the ceiling are served in full and unchanged, a page straddling it is cut
at it, and past it the result is empty rather than another type's rows. The
total reports what can actually be paged to, so a client stops instead of asking
for pages that no longer exist.

This is the merge's own limit, not the client's: a single-type search still pages
as deep as it likes, since its offset goes to SQL. Non-search multi-type queries
keep the unbounded offset+limit window, which predates this and wants the same
treatment via CountAll (exact per-type totals let whole types be skipped) rather
than a cap.

* fix(jellyfin): advertise the pageable search total, not the page window

Clipping the multi-type search total to `window` clipped it to StartIndex+Limit
on an ordinary page, so a first page of Limit=10 reported TotalRecordCount 10
however many matches there were, and a client paging on the total stopped after
one page. The cap belongs at the ceiling — what can be paged to overall — not at
the current page.

The tests missed it because the only one asserting a total used
StartIndex=maxSearchLimit, where the window happens to equal the ceiling.

* refactor(jellyfin): fold the search clamp into clampLimit and simplify mergeTypes

Cleanup pass over the branch, no behaviour change:

- clampSearchLimit was clampLimit (similar.go) with different constants, so the
  latter takes the default and ceiling as arguments and both call it. Similar's
  default moves out of three IntOr calls into defaultSimilarLimit.
- mergeTypes derived a second `limit` and needed an early return for the empty
  page, only because paginate reads 0 as "unbounded". Clipping the merged slice
  to the window instead lets q.limit be passed straight through: window is
  min(offset+limit, ceiling), so clipping there is the same cut.
- playlistTracks returned (result, handled, error) where handled=false always
  meant error=nil. Splitting the lookup out gives playlistTracksRepo returning
  (repo, ok), and the nilerr suppression goes with it.
- The comment on playlists.Tracks blamed the log warning for its extra Get; the
  reason is that PlaylistRepository.Tracks discards the error behind a nil. Also
  drops a stale reference to a renamed variable.
2026-07-15 18:09:59 -04:00
Deluan Quintão
fe6ac2e577
feat(jellyfin): experimental Jellyfin Music API support (#5730)
* feat(sharing): enable sharing by default

Flip the EnableSharing default from false to true so new installations have the sharing feature available out of the box. Users can still disable it via the EnableSharing config option.

The native API only registers the /share route when sharing is enabled, so the nativeapi tests that build the router without wiring a share service now explicitly disable sharing in their setup to avoid registering a route backed by a nil service.

* feat(jellyfin): add config flag and URL path constant

Adds the disabled-by-default Server.Jellyfin config option (Enabled,
ServerName) and consts.URLPathJellyfinAPI, following the existing
LastFM/ListenBrainz patterns. Later tasks will use these to mount the
Jellyfin-compatible API router.

* fix(jellyfin): default Jellyfin ServerName to "Navidrome"

* feat(jellyfin): package skeleton with System handshake endpoints

Adds server/jellyfin: the Router (mirrors server/subsonic and
server/public), its Wire-friendly New(...) constructor, a chi routes()
table, and the ok() JSON response helper. Implements the unauthenticated
handshake surface Jellyfin clients probe first: GET /System/Info/Public,
GET+POST /System/Ping, and GET /QuickConnect/Enabled (quick connect is
unsupported, so it always reports disabled).

The public info payload's Id must be stable across restarts (Jellyfin
clients cache ServerId), so it reuses the get-or-create Property pattern
already used for InsightsID in core/metrics/insights.go: fetch
consts.JellyfinServerIDKey from the Property repository, generating and
persisting a new UUID on first read. A dedicated key (rather than the
existing InsightsID) keeps the anonymous telemetry identifier from being
exposed on this unauthenticated endpoint.

* test(jellyfin): cover ping and quickConnectEnabled handlers

Both were added alongside the System/Info/Public handshake endpoint but
had no direct test coverage.

* fix(jellyfin): memoize stable server Id and cover get-or-create path

* feat(jellyfin): wire and mount the router behind Jellyfin.Enabled

Add jellyfin.New to the shared Wire provider set and a
CreateJellyfinAPIRouter injector, then mount the router at /jellyfin
in startServer(), gated by conf.Server.Jellyfin.Enabled, mirroring the
existing LastFM/ListenBrainz router mounts.

* feat(jellyfin): add Jellyfin DTOs and model mappers

Adds BaseItemDto, QueryResult, UserItemDataDto, UserDto,
AuthenticationResult, MediaSourceInfo, PlaybackInfoResponse,
NameGuidPair and SessionInfo DTOs to server/jellyfin/dto, plus
model-to-DTO mappers for songs, albums, artists and genres that
later browse/stream/write endpoints will consume.

* test(jellyfin): cover GenreToBaseItem mapper

* feat(jellyfin): advertise Jellyfin-compatible version, brand ServerName with Navidrome version

* fix(jellyfin): map LastPlayedDate and omit zero track/disc numbers

* feat(jellyfin): authentication middleware and AuthenticateByName login

* fix(jellyfin): reject empty login password, wire ServerName, add negative auth tests

* refactor(jellyfin): use new(x) builtin instead of intPtr helper

* feat(jellyfin): user views and current-user endpoints

* feat(jellyfin): Items query engine, item detail, and latest

Adds the /Items universal query endpoint, dispatching by IncludeItemTypes
over albums/artists/songs/genres with ParentId, SearchTerm, Filters=IsFavorite,
SortBy/SortOrder and StartIndex/Limit support, plus GET /Items/{itemId} and
/Users/{userId}/Items/Latest. Reuses server/subsonic/filter builders (by
artist/album/starred) instead of hand-rolled squirrel filters, and resolves
sort keys per item type since each repository maps sort names to different
real/aliased columns.

Also adds the missing CountAll to tests.MockArtistRepo, exposed by this task
(the mock embedded a nil ArtistRepository for it and would panic on use).

* refactor(server): extract shared query filter builders to server/filter

Moves server/subsonic/filter to server/filter so server/jellyfin can use
the shared query-option builders without importing server/subsonic,
enforcing the rule that no API package imports another API's package.

* feat(jellyfin): full multi-library support with per-user access scoping

Replace the single hardcoded "music" UserView with one CollectionFolder
view per library the user can access, and scope every /Items browse
query (albums, songs, artists, /Latest) to those libraries via
server/filter's ApplyLibraryFilter/ApplyArtistLibraryFilter.

ParentId is now disambiguated: a numeric value the user has access to is
treated as a library scope (browsing a UserView), otherwise it falls
through as an entity id (artist/album), which safely matches nothing
rather than leaking another library's content. getItem now 404s when
fetching an album or song outside the user's accessible libraries;
artists are skipped (they can span multiple libraries) with a TODO.

Genres remain unscoped since they're global tags, not per-library
entities.

* test(jellyfin): cover admin library-access path and drop nil test contexts

* feat(jellyfin): Artists and Genres endpoints

Add /Artists, /Artists/AlbumArtists, /Genres and /MusicGenres. Artists
listing is library-scoped (defaulting to the user's accessible
libraries, narrowed by an accessible ParentId), delegating access
control to listArtists/ApplyArtistLibraryFilter. Genres are global and
unscoped, matching the ML decision already made for listGenres.

* refactor(jellyfin): share resolveLibraryScope between items and artists

* feat(jellyfin): item image endpoint via artwork service

* fix(jellyfin): let net/http sniff image Content-Type instead of forcing jpeg

* feat(jellyfin): audio streaming and PlaybackInfo with library access control

* feat(jellyfin): favorites and rating write-back with library access control

Adds POST/DELETE handlers for /Users/{userId}/FavoriteItems/{itemId} and
/Users/{userId}/Items/{itemId}/Rating. A shared resolveAnnotated helper
probes album/artist/media file (mirroring getItem's order) and 404s before
writing if the user lacks access to the album/song's library; artists are
exempt since they span multiple libraries. Ratings are halved coming in
(Jellyfin 0-10 -> Navidrome 0-5) to match the doubling in dto.UserData.

Also teaches MockMediaFileRepo and MockArtistRepo's SetStar/SetRating (and
MockAlbumRepo's, previously a no-op) to actually mutate the backing data so
write-back can be asserted in tests.

* feat(jellyfin): playback reporting and scrobbling

Add /Sessions/Playing[/Progress|/Stopped] and /Sessions/Capabilities[/Full]
handlers, backed by core/scrobbler.PlayTracker. A new withPlayer middleware
resolves/registers a model.Player from the Emby DeviceId header (used
directly as the stable player id, unlike Subsonic's cookie fallback) and
injects it into the request context for scrobbling.

The Stopped report calls ReportPlayback with IgnoreScrobble to end the
now-playing session without double-counting, then calls Submit as the
single source of the play-count increment and external scrobble.

* feat(jellyfin): playlist read and write-back

Adds POST /Playlists, GET/POST/DELETE /Playlists/{id}/Items. Tags each
playlist item with PlaylistItemId (the entry's position within the
playlist) so DELETE .../Items?EntryIds=... can remove a specific
occurrence by the id core/playlists.RemoveTracks actually expects,
rather than the song id used everywhere else.

* test(jellyfin): cover empty Ids/EntryIds in playlist add/remove

* feat(jellyfin): unknown-route logging, generic 500s, rating clamp, docs

Hardening pass ahead of real client testing: unmatched routes and
unsupported methods now return a logged, JSON 404 instead of chi's
default plain-text response, so a missing endpoint a client needs is
easy to spot in the logs. Internal errors (ffmpeg output, file paths,
etc.) no longer leak into 500 response bodies -- a shared
internalError helper logs the real error server-side and always
returns a generic message. Inbound Jellyfin ratings are clamped to
0-10 before being halved into Navidrome's 0-5 scale, and /System/Ping
now replies with a bare plain-text body as real Jellyfin servers do.
Adds a README with an enable/curl walkthrough and known limitations.

* docs(jellyfin): clarify public image endpoint and accessibleLibraryIDs comments

* fix(jellyfin): case-insensitive path routing for Jellyfin client compatibility

* refactor(server): extract case-insensitive path routing to a shared helper

* fix(jellyfin): return User Policy and Configuration so Finamp completes login

* fix(jellyfin): support Playlist type, multi-type Items queries, and PlayCount/DatePlayed sort

Real Finamp requests break against three /Items query engine bugs: Playlist
requests fell through to albums, multi-type IncludeItemTypes (e.g. Finamp's
favorites screen) only returned the first requested type, and comma-separated
SortBy lists (e.g. "DateCreated,SortName") were matched as one opaque string
so they always fell through to the repo default.

Also extends tests/mock_playlist_repo.go with SetData/GetAll so playlist
listing is testable like the other mock repos.

* feat(jellyfin): implement /socket WebSocket for real-time client sessions

* fix(jellyfin): resolve library-view ids in getItem so clients can load the library

* fix(jellyfin): serve direct file at /Items/{id}/File and accept ApiKey query param

* fix(jellyfin): resolve playlist ids in getItem

* fix(jellyfin): read lowercase ids/entryIds playlist params and add playlist-users endpoints

* fix(jellyfin): include MediaSources with Size/Bitrate on tracks so clients show download size

* fix(jellyfin): populate all required MediaSourceInfo bool/array fields to match Jellyfin

* fix(jellyfin): hex-encode item ids at the API boundary for Jellyfin client compatibility

Finamp (and presumably other clients) parses ids as radix-16, but Navidrome's
base62 nanoids aren't valid hex and crash its queue packing. Hex-encode every
id emitted by the Jellyfin API and decode every id received, keeping the
transform reversible and stateless at the boundary rather than touching any
model id.

* fix(jellyfin): populate MediaStreams with the audio stream so clients can size/transcode

* fix(jellyfin): support Ids batch-fetch in /Items so clients can fetch items by id

* fix(jellyfin): do not disable Jellyfin server when disabling external services

* fix(jellyfin): emit per-image ImageBlurHashes so clients de-dupe images and stop warning

* fix(jellyfin): support playlist cover upload/delete and display via item image endpoints

* feat(jellyfin): implement GET /Playlists/{id} for playlist visibility

Finamp's playlist edit screen calls GET /Playlists/{id} to read the
OpenAccess (public visibility) flag; we only had the sub-routes, so it
404'd and the edit screen failed to load. Return the Jellyfin PlaylistDto
shape (OpenAccess from Public, empty Shares, media item ids).

* fix(jellyfin): display playlist cover art

Uploaded playlist covers never showed in clients for two reasons: the
playlist BaseItemDto advertised no Primary ImageTag (so clients didn't
know to fetch a cover), and the public image endpoint resolved artwork
under the request's anonymous context, so a private playlist failed its
visibility filter and fell back to the placeholder. Advertise the Primary
image tag/blurhash on playlists, and resolve artwork under an elevated
context (as core/artwork's cache warmer does).

* fix(jellyfin): expand album/artist/playlist ids when building playlists

Jellyfin clients (Finamp) send container ids — an album, artist or
playlist — in a playlist's Ids list and expect the server to expand each
into its child tracks. core/playlists only understands media file ids, so
creating or adding with an album id silently produced an empty playlist.
Expand container ids to their tracks (in order) before create/add; bare
song ids still pass through. Adds filter.SongsByArtistID.

* fix(jellyfin): support playlist deletion via DELETE /Items/{id}

Finamp deletes a playlist with DELETE /Items/{id}, which we didn't route,
so deletion silently failed. Implement it via core/playlists.Delete (which
enforces ownership and removes the cover file). Only playlists are
deletable through this API; non-playlist ids return 404, non-owners 403.

* test(jellyfin): add e2e suite harness + smoke tests

* test(jellyfin): e2e for system, auth, routing, browsing, annotations

* test(jellyfin): e2e for playlists (CRUD, expansion, cover) and item images

* test(jellyfin): e2e for streaming, sessions, and multi-user access control

* fix(jellyfin): artist search 500 (library filter leaked into FTS query)

getArtists/listArtists reused the browse-path filters (notMissing +
ApplyArtistLibraryFilter) for the search path, but artist Search expects a
sole Eq{library_id} filter it can consume as a scope — artists have no
library_id column, so the compound/join filter leaked into the FTS query
and 500'd. Every Finamp artist search failed (the filter is applied even
unscoped, since admins resolve to all library ids). Build search filters
separately. Adds e2e search coverage.

* feat(jellyfin): implement POST /Playlists/{id} to update name, visibility, tracks

Finamp edits a playlist (make public, rename, reorder) via POST
/Playlists/{id}, which we didn't route, so every edit 404'd. Implement it:
Ids present -> replace track list (Create with existing id, preserving
name); otherwise update Name/IsPublic via core/playlists.Update. Adds a
shared playlistError helper (403/404/500) reused by deleteItem, plus e2e
coverage.

* docs(jellyfin): update README for playlists, images, id encoding, and e2e

* fix(jellyfin): default album track listing to track order

Browsing an album's tracks (Items?ParentId=<albumId>&IncludeItemTypes=Audio)
took only SongsByAlbum's filters and dropped its Sort, so tracks came back
in arbitrary order. Default opts.Sort to the album (disc+track) order when
browsing an album without an explicit SortBy — matching Subsonic's GetAlbum
and real Jellyfin. An explicit SortBy still wins.

* fix(jellyfin): filter items by AlbumArtistIds/ArtistIds

An artist's page in Finamp sends ParentId=<libraryId> (scoping) plus
AlbumArtistIds/ArtistIds/contributingArtistIds for the artist itself, but
queryItems only honored ParentId, so an artist's albums and tracks came
back unfiltered (every artist's content). Parse the artist-id params and
apply AlbumsByArtistID (albums) / SongsByArtistID (tracks). Adds e2e
coverage.

* fix(jellyfin): only count a play past the scrobble threshold

reportPlaybackStopped set IgnoreScrobble and force-submitted a play on
every Stopped report, so a briefly-played track (e.g. an immediate skip)
was marked played. Finamp sends Stopped on every track switch, so the
threshold must be applied server-side. Let ReportPlayback's StateStopped
logic decide (play + scrobble only past 50% of the track / 4-minute cap)
instead. Subsonic differs because there the client gates submission.

* fix(jellyfin): sort album tracks by track number when client sends IndexNumber SortBy

Finamp's album view requests SortBy=ParentIndexNumber,IndexNumber,SortName
(disc, track, name), but applySort didn't recognize ParentIndexNumber or
IndexNumber and fell through to SortName, sorting tracks alphabetically by
title. Map both keys to the album (disc+track) sort. The reversed-title
fixture lets the e2e tell track order from title order.

* fix(jellyfin): honor the isFavorite query param for favorites filtering

Finamp's artist 'Favourite tracks' widget requests favorites via the
standalone isFavorite=true query param, not Filters=IsFavorite, so the
filter was ignored and non-favorited tracks were returned. Detect both
forms. (The widget's reshuffling is Finamp's explicit SortBy=Random.)

* feat(jellyfin): emit DateCreated (Date Added) on items

BaseItemDto had no DateCreated, so clients showed 'No Date Added' and had
nothing to sort 'Recently Added' by. Emit it as ISO 8601 from each entity's
CreatedAt (the same field the recently_added sort uses) for songs, albums
and artists.

* fix(jellyfin): set ArtistItems/AlbumArtists on songs (Now Playing artist)

SongToBaseItem only set Artists (names) and AlbumArtist, not the structured
ArtistItems/AlbumArtists. Finamp's Now Playing screen reads ArtistItems and
shows 'Unknown Artist' when it's absent. Populate both (track artist and
album artist) as name+id pairs, mirroring AlbumToBaseItem.

* docs(jellyfin): note synthetic blurhash as a follow-up

Document that ImageBlurHashes are derived from the item id (a solid-color
placeholder), not computed from the cover art like real Jellyfin, and
outline what a proper implementation would take.

* docs(jellyfin): note WebSocket events and favourited playlists as follow-ups

* fix(jellyfin): filter the Artists page by role (album artist vs performer)

/Artists and /Artists/AlbumArtists both called the same role-agnostic
handler, so Navidrome's per-role artist entries (composers, arrangers,
performers) all showed as Album Artists, and the two tabs were identical.
Filter /Artists/AlbumArtists to RoleAlbumArtist and /Artists to RoleArtist
(and the MusicArtist browse to album artists), via filter.ArtistsByRole.
Verified live: Beatles Singles' album-artists dropped 138->5, composers
excluded, performers (Billy Preston) show only under /Artists.

* fix(jellyfin): sort playlists by name (missing Playlist sort mapping)

applySort had no sortColumnsByType entry for the Playlist type, so
SortBy=SortName was ignored and the Playlists screen showed them in the
repo's default order. Map SortName/Name -> name (as Subsonic does) and
DateCreated -> created_at. Verified live: case-insensitive alphabetical.

* fix(jellyfin): read query params case-insensitively (Jellify support)

Jellify (and the official Jellyfin TypeScript SDK) send query params in
camelCase (parentId, albumArtistIds, artistIds, includeItemTypes), where
Finamp sends PascalCase. Our handlers read fixed-case keys, so every
Jellify filter/sort/paging param was silently dropped:

- an artist's page listed albums and tracks from all artists
- opening an album listed every album instead of its tracks

Real Jellyfin binds query params case-insensitively (ASP.NET model
binding), so add a normalizeQueryKeys middleware that folds every query
key to lowercase once, and read params by their lowercase name. This
also removes the scattered dual-case hacks (Ids/ids, IsFavorite,
ContributingArtistIds, api_key/ApiKey, queryParam) that let this bug
class through.

Also infer the child type from an album parent: Jellify browses an album
with only parentId (no IncludeItemTypes), and Jellyfin infers Audio from
the parent; without it we fell back to listing all albums.

Verified live against Finamp+Jellify and with 4 new e2e specs replaying
Jellify's exact request shapes.

* fix(jellyfin): advertise LocalAddress in the public system info handshake

Jellify (and other @jellyfin/sdk clients) that connect by raw address fall
back to HTTP when TLS isn't available, then adopt the handshake's
LocalAddress as their server base URL. We never populated it, so Jellify's
SDK `api` object was undefined and sign-in crashed with "Cannot read
property 'configuration' of undefined" (getUserApi(api!) with an undefined
api). Over an HTTPS connection Jellify uses connectionType=hostname and
never reads LocalAddress, which is why it worked while an HTTPS proxy was
in front.

Populate LocalAddress from the request — scheme + host (honoring
X-Forwarded-*), plus the /jellyfin mount path — matching real Jellyfin,
which always sends it. Export server.ServerAddress for the resolution.

* fix(jellyfin): separate "Featured On" from an artist's own discography

Jellify's artist page fetches the discography via albumArtistIds and the
"Featured On" section via contributingArtistIds, relying on the server to
return disjoint sets. We collapsed albumArtistIds/artistIds/
contributingArtistIds into one AlbumsByArtistID filter, so an artist's own
albums appeared in both sections.

Add AlbumsByContributingArtistID — albums where the artist is a track
artist but NOT the album artist — matching Jellyfin's ContributingArtistIds
(in Artists, not in AlbumArtists), and route contributingArtistIds to it.

* fix(jellyfin): accept a bare Authorization token for audio streaming

Jellify's native player (react-native-nitro-player) authenticates the audio
stream by setting a bare Authorization header carrying the raw access token
({ AUTHORIZATION: api.accessToken }), not the "MediaBrowser ... Token=" scheme
parseEmbyAuth understands. tokenFromRequest didn't recognize it, so every
/Audio/{id}/stream request from the native player 401'd and no audio played
(the JS client still optimistically posted playback progress, masking it).

Accept a bare (or "Bearer <token>") Authorization header, as real Jellyfin
does. Verified live: the native player's exact request now streams 200.

* fix(jellyfin): embed a self-authenticating stream URL in PlaybackInfo

Jellify's native audio player (react-native-nitro-player / ExoPlayer) fetches
the stream without forwarding any auth — captured request headers were only
Connection/Icy-Metadata/Accept-Encoding/User-Agent, no Authorization and no
api_key — so every /Audio/{id}/stream request 401'd and nothing played (the
JS client still optimistically posted progress, masking it).

Real Jellyfin returns stream URLs with the token embedded; we returned none,
so Jellify fell back to a token-less DirectPlay URL. Populate
MediaSources[0].TranscodingUrl with /Audio/{id}/universal?api_key=<caller
token>, which Jellify's player uses verbatim. Direct-play clients (Finamp
builds its own /Items/{id}/File?ApiKey URL) ignore the field, so they're
unaffected.

* feat(jellyfin): serve per-item UserData (GET /UserItems/{id}/UserData)

Jellify fetches this per item to render played/favourite indicators; we 404'd
it. Resolve the item via the existing getItem resolver (which loads the
caller's annotations and enforces the same library-access gate) and return its
UserData, falling back to an empty-but-valid object for items without
annotations (e.g. playlists). Also registers the legacy
/Users/{userId}/Items/{itemId}/UserData spelling.

* refactor(jellyfin): drop unused bare-Authorization token support

Added mid-troubleshooting on the theory that Jellify's native player sends a
bare Authorization header, but the debug capture showed it sends no auth header
at all — the real fix was embedding api_key in PlaybackInfo's TranscodingUrl.
No client reaches this path (Jellify JS uses the MediaBrowser scheme, Finamp
uses X-Emby-Token, the native player uses the api_key URL), so remove it and
its tests per YAGNI. Effectively reverts 4f8ac1e0.

* feat(jellyfin): implement Similar endpoints via the external provider

Add GET /Artists/{id}/Similar (related artists) and GET /Items/{id}/Similar
(similar songs for a track, similar albums for an album, related artists for an
artist), sourced from the same external.Provider (Last.fm etc.) that powers
Subsonic's getArtistInfo2/getSimilarSongs. Only library-present artists are
returned so each is navigable; provider errors and unknown ids degrade to an
empty 200 result, so clients (Jellify) stop hammering these with 404 retries.

Injects external.Provider into the Router (regenerated via make wire).

* perf(jellyfin): make Similar endpoints non-blocking (bounded quick wait)

Each /Similar request fetched from Last.fm synchronously (500ms-1.4s), and
Jellify requests Similar for many items at once on the home/artist screens, so
the whole screen stalled — a home pull-to-refresh dragged for seconds.

Run the external lookup on a background context and return within a 500ms quick
wait: a cached artist resolves instantly, a cold one returns empty now while the
lookup finishes caching in the background, so a later load is fast and
populated. Verified live: cold calls bounded at ~500ms (was up to 1.4s), warm
calls 3-8ms.

* fix(jellyfin): answer ManualPlaylistsFolder so the home stops stalling

Jellify resolves its "playlists library" via IncludeItemTypes=
ManualPlaylistsFolder, then lists playlists with ParentId set to that folder's
id. We didn't recognize the type, so parseTypes fell back to MusicAlbum and
returned the album list. Jellify's query then found no item with
CollectionType=playlists and resolved undefined — which React Query rejects,
retrying it in a backoff loop that stalled the home pull-to-refresh for ~5s
(every response was fast server-side; the delay was the client's retries).

Return a synthetic "playlists" folder (CollectionType=playlists) for the
ManualPlaylistsFolder query, resolve ParentId=<that folder> to the user's
playlists, and give playlists a Path under "data" (Jellify drops playlists
whose Path lacks it). Adds a Path field to BaseItemDto.

* docs(jellyfin): note lyrics and InstantMix/sonic-similarity as follow-ups

* fix(jellyfin): genre paging params and same-key casing collisions

getGenres read StartIndex/Limit in PascalCase, which normalizeQueryKeys had
already folded to lowercase, so genre paging was silently ignored; totals now
come from the full (small) genre list instead of the page length.
normalizeQueryKeys now merges values when two casings of a key collide,
instead of nondeterministically keeping one.

* fix(jellyfin): round ratings to the nearest star instead of truncating

Rating is a nullable double 0-10 in Jellyfin's contract. Truncating integer
division stored 9 as 4 stars, and both Rating=1 and fractional values (which
failed integer parsing) became 0 — silently deleting the rating. Parse as
float, round, and floor nonzero input at one star.

* fix(jellyfin): apply Name/IsPublic sent together with a track replacement

Jellyfin's UpdatePlaylist applies every provided field, but the Ids branch
returned early, silently discarding a rename or visibility change sent in the
same body (core/playlists.Create with an existing id ignores the name).

* fix(jellyfin): don't rotate the stored server id on transient DB errors

serverID treated any Property.Get error as "no id yet" and persisted a fresh
UUID over JellyfinServerID, with sync.Once pinning it for the process lifetime
— a busy DB or canceled request context on the first request would break every
client's cached ServerId. Only ErrNotFound mints a new id now, and failures
yield an uncached temporary value so the next request retries.

* fix(jellyfin): report real search totals instead of page length or unfiltered counts

Artist search returned TotalRecordCount = len(page), so clients stopped after
the first page; album/song search counted via CountAll, which can't see the
search term, so clients paged through phantom results. The repos' Search API
has no match count, so fetch one row beyond the page: offset+len is exact on
the last page and a strictly growing lower bound before it — paging clients
terminate exactly at the last match.

* fix(jellyfin): browse playlists via the generic /Items path and resolve the playlists folder by id

A typeless /Items?ParentId=<playlistId> (legal in real Jellyfin, used by
generic clients) fell through to the MusicAlbum default and returned an empty
list; it now returns the playlist's tracks, paginated, with visibility
enforced by GetWithTracks. resolveItemByID also answers the synthetic
playlists-folder id the server itself advertises instead of 404ing it.

* perf(jellyfin): cap per-type queries in multi-type /Items requests

The multi-type merge path queried each type with a zero-value QueryOptions —
no LIMIT in SQL — materializing every matching row (each with embedded
MediaSources) just to slice out one page in memory. Each type now fetches at
most StartIndex+Limit rows, the worst case one type can contribute to the
merged window; totals still come from CountAll.

* fix(jellyfin): dedupe and bound the background Similar fetches

awaitSimilar spawned a detached, deadline-free goroutine per request; clients
re-polling after the empty quick-wait response piled up duplicate provider
chains (no singleflight anywhere below) racing writes on the same artist row.
Identical in-flight requests now share one fetch — keyed per user, since the
mapped items embed the user's annotations — and the background context gets a
one-minute deadline so a hung provider can't hold goroutines forever.

* fix(jellyfin): gate private playlist covers on the public image route

The unauthenticated image endpoint elevated every request to an admin context,
so anyone who knew or guessed a playlist id could fetch another user's private
uploaded cover. Library artwork still resolves elevated (Jellyfin clients fetch
images without auth headers), but playlist covers are now served only when the
playlist is public or the request's optional token identifies its owner or an
admin; everyone else gets the placeholder.

* fix(log): redact full api_key values, including JWTs

The api_key pattern matched only word characters, stopping at a JWT's first
'.' — the Jellyfin API embeds the session JWT as api_key in TranscodingUrl, so
request logs kept its payload and signature, enough to reconstruct a replayable
token by prepending the constant header. Match to the next query separator
instead, like the sibling s=/p=/jwt= patterns.

* fix(jellyfin): record LastLoginAt on Jellyfin logins

authenticateByName re-implements credential validation and skipped the
UpdateLastLoginAt call the web UI's validateLogin makes, so users who only log
in via Jellyfin clients showed a never/stale Last Login in the admin UI.

* perf(jellyfin): batch song resolution in /Items?ids= and playlist expansion

Both paths probed up to four repositories per client-supplied id. Songs — the
common case — now resolve via chunked media_file.id IN queries (same pattern
as playqueue's loadTracks); only the residue pays the container probes.

* fix(jellyfin): wait for the real Similar result instead of answering a cacheable empty list

The 500ms quick wait returned an empty 200 for any cold lookup —
indistinguishable from "no similar items exist", so clients cached the wrong
answer until an app restart. With fetches deduplicated, wait up to the agents'
HTTP timeout for the actual result; only a hung provider now yields the empty
fallback, and its fetch still warms the cache in the background. Also makes
the dedup test deterministic (the old one raced its release channel).

* refactor(tests): extract the shared e2e harness into tests/harness

The Subsonic and Jellyfin e2e suites each carried their own copy of the
golden-DB lifecycle (boot, seed users/library, scan, WAL snapshot), the
ATTACH-DATABASE restore, fixture-FS registration, and the SpyStreamer /
NoopFFmpeg doubles. Those now live in one importable package (same pattern as
core/storage/storagetest); fixture libraries and request helpers stay
per-suite since they encode each API's test expectations.

* docs(jellyfin): make comments concise

Compress the narrative comments accumulated during live client testing into
short why-only notes; keep the client quirks, security rationales and gotchas,
drop the exposition. Comments-only change (net -141 lines).

* fix(tests): silence gosec taint false-positive in harness snapshot write

The write moved from a _test.go file (which gosec skips) into the importable
harness package; the path derives from GinkgoT().TempDir().

* fix(jellyfin): route the current /UserFavoriteItems favorite endpoint

@jellyfin/sdk 0.13.0 (used by Jellify) posts favorites to
POST/DELETE /UserFavoriteItems/{itemId}, while we only routed the legacy
/Users/{userId}/FavoriteItems/{itemId} (Finamp). Jellify favorites 404'd
("Failed to add favourite"). Route both spellings to the same handlers.

* feat(jellyfin): honor Fields on /Items and add missing conformance fields

Match real Jellyfin's response shape: gate MediaSources (and MediaStreams)
behind Fields=MediaSources instead of always embedding them — clients that
need Size request it, as Finamp does — which cuts a 46-track artist response
from ~87KB to a fraction. Also emit the always-present fields Jellyfin sets:
ServerId (stamped centrally in ok), LocationType, HasLyrics, and SortName
(when Fields=SortName). PlaybackInfo still carries MediaSources (its purpose).

* fix(jellyfin): address code review security and correctness findings

Applies the reviewed findings from PR #5730:

- Gate similar songs/albums on the caller's library access, so the
  external provider can't surface metadata from libraries the user
  cannot see. Also clamp the client-supplied limit before it sizes any
  allocation or provider fetch (CodeQL user-controlled allocation).
- Prepend the /jellyfin mount prefix to the PlaybackInfo TranscodingUrl,
  so a client resolving it as an absolute host path still reaches the
  mounted router.
- Recognize WebP and GIF magic numbers on raw cover uploads, matching
  the formats Navidrome already supports.
- Bound the playlist cover upload: honor EnableArtworkUpload for
  non-admins and cap the body with MaxBytesReader/MaxImageUploadSize,
  mirroring the native image endpoint.
- Propagate non-not-found repository errors from resolveAnnotated as 500
  instead of silently returning 404.
- Normalize the literal prefix of mixed literal.param path segments
  (e.g. STREAM.mp3) so case-insensitive routing reaches stream.{container}.
- Rate-limit POST /Users/AuthenticateByName with the same per-IP limiter
  as /auth/login when AuthRequestLimit is set.
- Guard against a nil user in authenticateByName.

* fix(jellyfin): correct playlist track browsing and multi-id edits

Fixes three playlist issues, two found testing against Jellify and one
from the PR review:

- Resolve a playlist ParentId to its tracks even when the client sends
  IncludeItemTypes=Audio. Jellify opens a playlist with
  ParentId=<playlist>&IncludeItemTypes=Audio; the id was routed through
  listSongs as an album id, returning an empty list.
- Read repeated id query params (ids=X&ids=Y), not just the first value.
  Jellify's @jellyfin/sdk serializes id arrays as repeated params, so
  adding an album (which it expands client-side into many ids) only
  added the first track. Applies to both add and remove; the
  comma-separated form other clients use still works.
- Let an explicit empty Ids array clear a playlist. Ids is now a pointer
  so an omitted field still means 'leave unchanged', while an empty list
  clears the tracks (via RemoveTracks, since the repository skips track
  writes for an empty list).

* fix(jellyfin): register clients as players on any authenticated request

Jellyfin clients did not appear in the players list. Unlike Subsonic,
whose getPlayer middleware runs on every authenticated endpoint, the
Jellyfin router only registered a player on the /Sessions/Playing
reports, so browsing or streaming never created one.

Apply withPlayer to the whole authenticated group, mirroring Subsonic,
so the calling device registers (and scrobbling has a player) as soon as
it makes any authenticated request. Two follow-ups found while testing:

- Skip registration when the request carries no client/device info (no
  X-Emby-Authorization, e.g. the /socket handshake that auths via
  ?api_key= only), which otherwise created a junk player named ' []'.
- URL-decode the X-Emby-Authorization field values. Jellify's
  @jellyfin/sdk percent-encodes them (Device='Pixel%208%20Pro') while
  Finamp sends them raw, so the player name showed as
  'Jellify [Pixel%208%20Pro]'.

* refactor(jellyfin): move case-insensitive routing into the jellyfin package

The case-insensitive path normalization lived in the server package but
was only ever used by the Jellyfin router (its whole purpose is that
Jellyfin clients route case-insensitively while chi does not). Move it
into server/jellyfin and unexport it, so it sits with its only caller
and no longer needs to be exported across a package boundary.

* docs(jellyfin): document player registration, playlist and image behavior

Updates the package README for the behavior added/fixed this round:

- New 'Players and sessions' section: any authenticated request now
  registers the device as a player (like Subsonic), with the
  Client [Device] naming, URL-decoding of the Emby auth fields, and the
  /socket skip that avoids a nameless player.
- Authentication: note AuthenticateByName is rate-limited per IP.
- Playlists: repeated vs comma-separated id params, and that an explicit
  empty Ids clears the playlist while an omitted Ids leaves it untouched.
- Cover art: WebP/GIF magic-number detection plus the MaxImageUploadSize
  and EnableArtworkUpload gates.
- Endpoints table: add the /Similar and /UserFavoriteItems /
  /UserItems/.../UserData routes that were already served but unlisted.

* feat(jellyfin): expose configured users on the login user-picker

Adds Jellyfin.ExposedPublicUsers, a comma-separated allowlist of
usernames that GET /Users/Public advertises so Jellyfin clients (Finamp,
Jellify) can show a login user-picker instead of a blank username field.

The endpoint is unauthenticated, so it defaults to exposing no users and
never lists the full user table: only the admin-configured names are
returned, resolved live per request (a name that doesn't exist is skipped
and logged). Each entry is a minimal DTO (Name, Id) with no
Policy/Configuration, so admin status isn't leaked pre-login, and no
avatar since Navidrome has no per-user profile images.

* style(jellyfin): trim redundant comments

Remove comments that restated the code or duplicated an explanation
already given nearby, keeping the ones that capture non-obvious rationale
(client-specific quirks, gotchas). Comment-only change; no behavior
difference.

* perf(db): keep query planner statistics trustworthy with full ANALYZE

PRAGMA optimize's internal ANALYZE runs with a limited analysis budget
(~2000 rows) that writes wrong sqlite_stat1 entries for low-cardinality
indexes: on a 96K-track library it claimed (missing, library_id) narrows
to ~2000 rows when it matches the whole table. The planner then prefers
that index over the sort index and falls back to a full-table temp
B-tree sort per request, turning paginated song listings into
multi-second queries (reproduced at 5.5s on real hardware; ~90x slower
than with correct stats). Every index-creating migration re-triggered
the poisoning via the post-migration optimize, and the daily optimizer
could re-trigger it on large library changes. Setting analysis_limit on
the connection does not help: optimize ignores it.

Run a plain full ANALYZE instead: after migrations with schema changes,
and in db.Optimize (daily schedule and scan-end). Stats are stored in
the database file, so one connection suffices and the per-connection
pool loop is gone. The Optimize call at shutdown is removed: stats are
maintained at migration/scan/daily points, and an ANALYZE during
shutdown only delays it and races container stop timeouts.

* perf(db): add covering index for title-sorted song listings

Deep pagination over songs sorted by title (WHERE missing/library_id,
ORDER BY order_title LIMIT/OFFSET - the shape Jellyfin clients use to
enumerate the library, and non-admin native/Subsonic song lists share)
walked media_file_order_title and fetched the table row for every
skipped entry just to evaluate the filter and the annotation/bookmark
join keys: offset+limit random reads, seconds per page on cold spinning
disks.

The new (missing, library_id, order_title, id) index makes the offset
skip fully index-resident: filter columns and the join key come from the
index, and only the emitted page touches table rows. Measured on a
96K-track library: offset 50000 drops from ~6.5s (poisoned stats) /
~100ms (good stats, warm) to 24ms, and cold deep pages on NAS hardware
from ~7s to ~0.5s.

* feat(jellyfin): support transcoding via HLS playlist and server-forced player format

- withPlayer now propagates the player's configured transcoding into the
  request context (like Subsonic's getPlayer), so a format forced in
  Settings > Players applies to the Jellyfin stream endpoints
- new GET /Audio/{itemId}/main.m3u8, the endpoint Finamp plays through
  when its transcoding setting is enabled: a single-segment HLS VOD
  playlist pointing at the existing progressive transcode endpoint
- streamAudio: treat audioBitRate as bits/sec (Jellyfin convention) and
  fall back to audioCodec as target format when no container is given

* fix(jellyfin): honor GenreIds when browsing genre albums and tracks

Finamp's genre screen sends ParentId=<libraryId> plus GenreIds=<genreId>,
but /Items ignored the param, so every genre returned the whole library.

- filter.ByGenreID delegates to persistence.TagIDFilter (exported, was
  tagIDFilter), the same mechanism behind the native API's genre_id filter
- id lists are read via queryIDs, covering both spellings clients use
  (comma-separated and repeated params); /Items?ids= gains the repeated
  form too

* feat(jellyfin): filter album artists by GenreIds

Finamp's artist tab sends GenreIds to /Artists/AlbumArtists when a genre
filter is active; the param was ignored, returning all artists.

filter.ArtistsByGenreID matches artists credited as album artist on an
album with the genre, via a non-correlated semi-join over album
participants (86ms on a 29K-artist library; the correlated EXISTS form
takes 11 minutes). Applied on the browse path of /Artists* and
/Items?IncludeItemTypes=MusicArtist.

The performers variant (/Artists?GenreIds=) still ignores the filter: it
needs the same semi-join against media_file.participants, unmeasured on
large libraries.

* fix(jellyfin): version playlist image tag so clients refresh uploaded covers

Uploads were stored and served correctly, but Finamp kept showing the old
cover: it caches covers keyed by blurHash (its imageId is the item id,
which never changes), and both our image tag and synthetic blurhash were
derived from the playlist id alone.

The tag is now <id>-<UpdatedAt millis hex> (SetImage/RemoveImage go
through a full Put, which bumps UpdatedAt), and the blurhash derives from
the tag, so every cover change rotates both. UpdatedAt over-invalidates
(any playlist edit busts the cover cache), which only costs a refetch;
hashing the actual image remains the proper long-term tag.

An e2e test guards the whole chain, since a partial Put(pls, cols...)
would silently stop bumping UpdatedAt.

* fix(jellyfin): align cover upload limit and validation with the native endpoint

Cover uploads of large photos failed with a silent 400: the
MaxImageUploadSize cap was applied to the wire body, which Jellyfin
clients base64-encode (4/3 inflation), so the effective raw-image limit
was only ~7.5MB — and Finamp uploads picked photos uncompressed.

Align with the native endpoint:
- the limit caps the decoded image; the read cap allows for base64
  inflation
- validate by decoding (image.DecodeConfig) and take the storage
  extension from the real format instead of the Content-Type header,
  which clients get wrong (Finamp falls back to image/jpeg); a HEIC or
  corrupt file is now rejected instead of stored as a broken cover
- rejected uploads log the reason (size/limit/decode error); diagnosing
  this from production logs previously required guesswork

* fix(jellyfin): optimize SongsByArtistID filter to improve performance at library scale

Signed-off-by: Deluan <deluan@navidrome.org>

* fix(jellyfin): sort tracks by release year for SortBy=PremiereDate

Finamp's "Latest Releases" artist section sends
SortBy=PremiereDate,Album,... descending; PremiereDate wasn't in the
Audio sort map, so applySort fell through to Album and the view came
back in reverse album-name order (a 2002 remix album first, the 2013
release last).

Map premieredate/productionyear to the year sort key, matching the
ProductionYear the DTO exposes for songs and the existing MusicAlbum
mapping (premieredate -> max_year).

* feat(jellyfin): expose PremiereDate on tracks and albums

Finamp's "Latest Releases" artist/genre sections re-sort the merged
server responses client-side by PremiereDate and keep the top 5. Without
the field every comparison returns equal and Dart's unstable sort leaves
the picks in arbitrary order — a 2007 remix could lead the list even
with the server sorting by year correctly.

Serialize PremiereDate as ISO 8601 from the date tag (padding partial
"2007"/"2007-02" values so DateTime.tryParse accepts them), falling
back to the year; omitted when neither exists.

* feat(jellyfin): resolve Finamp-truncated item ids (saved queue restore)

Finamp persists its play queue by packing every item id into exactly 16
bytes (packIds assumes Jellyfin's 32-hex GUID ids), so our longer ids
come back truncated after an app restart and "Failed to restore queue"
loops forever: the /Items?ids= batch resolves nothing.

Navidrome ids can't be made GUID-shaped (nanoid ids can exceed 128 bits),
so compensate server-side: a 16-char id — a length no Navidrome id family
uses — is resolved by unique-prefix range scan, with ambiguity failing
safe. The ids= batch echoes the id as requested (Finamp matches restored
items by its stored ids), and stream, image, item, user-data, favorite,
rating and playback-report endpoints accept truncated ids transparently.

The proper fix belongs upstream in Finamp's packIds; documented in the
README so this layer can be removed once that ships.

* feat(jellyfin): implement Items/{id}/InstantMix

Finamp requests an instant mix on every track tap when its "start
instant mix for individual tracks" setting is on (plus the long-press
menus); the 404 made those taps fail with an error and play nothing.

A track seed returns itself first — Finamp plays exactly what comes
back — followed by the external provider's similar songs, capped at the
requested limit and filtered to the caller's libraries. Container seeds
(artist/album) return the provider's similar-songs blend. Provider
errors and unknown seeds degrade to seed-only/empty results instead of
404s, reusing the Similar endpoints' bounded-wait singleflight (with a
distinct cache key, since mixes and similar lists answer different
shapes). Sonic-similarity backing stays a follow-up (see README).

* style(jellyfin): trim wordy comments

* refactor(jellyfin): apply cleanup review findings

- batch truncated-id resolution in /Items?ids=: one chunked range query
  for all media-file prefixes instead of a query per id (a restored
  queue sends hundreds of truncated ids)
- resolve truncated ids on the /Similar endpoints too, matching the
  neighboring InstantMix; document which entry points don't resolve
- hoist maxImageUploadSize to core, deleting the byte-identical copies
  in nativeapi and jellyfin (tests moved to core)
- drop the unused type parameter on premiereDate

* fix(jellyfin): never drop the instant mix seed on a slow provider

The seed track was built inside the awaited provider fetch, so when the
external agent was slow or unreachable the request hit the 10s wait and
answered a fully empty mix — Finamp then played nothing on tap, even
though the seed needs no provider at all (seen live: Last.fm unreachable
from the server, responseSize=49).

Build the seed outside the await: only the similar-songs tail is fetched
and bounded, and a timeout now degrades to a seed-only mix. Also folds
instantMixForSong into getInstantMix, since the tail is exactly
similarSongs.

* fix(jellyfin): prefer the recommended Authorization scheme when picking a token

Jellyfin's authorization guidance deprecates X-Emby-Token,
X-MediaBrowser-Token, X-Emby-Authorization and api_key; the Authorization
MediaBrowser scheme is the recommended form. All spellings stay accepted,
but when a client sends several, the recommended one now wins. Adds
coverage for the canonical Authorization header, which no test exercised
directly.

* refactor(jellyfin): rename parseEmbyAuth to parseMediaBrowserAuth

The scheme is named MediaBrowser; the old name evoked the deprecated
X-Emby-* spellings even though the function also parses the recommended
Authorization header.

* fix(jellyfin): prefer the Authorization header over X-Emby-Authorization

The recommended header now wins when both carry MediaBrowser data — but
only when it actually parses as MediaBrowser: a reverse proxy may inject
Basic/Digest credentials into Authorization while the client sends the
deprecated header, and those must not swallow the client's auth.

* fix(jellyfin): require the MediaBrowser scheme when parsing auth headers

The parser extracted key="value" pairs from any Authorization value; a
foreign scheme whose parameters happened to use our field names would
have been misread as client auth. Validate the scheme word instead
(case-insensitively, per HTTP), accepting the legacy "Emby" spelling
like real Jellyfin. Replaces the any-recognized-field heuristic for
detecting proxy-injected Basic/Digest credentials.

* Revert "perf(db): keep query planner statistics trustworthy with full ANALYZE"

This reverts commit 118563e1053196f0e2e42dd4bee54e39a04ab145.
The planner-statistics work now lives in its own PR (#5740); this branch
keeps only the covering-index migration.

* fix(db): renumber jellyfin covering-index migration after master's latest

* fix(db): renumber Jellyfin covering-index migration

* docs(jellyfin): document playlist annotations

* refactor(log): clarify comments on external services query params

* refactor(e2e): move Subsonic e2e suite to server/subsonic/e2e

All files in server/e2e were Subsonic tests, so relocate the package
under server/subsonic/e2e to sit alongside the API it exercises. The
package name stays 'e2e'; only doc/comment references are updated.

* refactor(filter): consolidate genre filters and unexport tagIDFilter

Route filterByGenre, ByGenreID, and ArtistsByGenreID through a single
genreTagFilter helper so the EXISTS json_tree(tags,"$.genre") predicate
lives in one place. With server/filter no longer using it, persistence's
TagIDFilter is only referenced within the package, so unexport it.

---------

Signed-off-by: Deluan <deluan@navidrome.org>
2026-07-14 11:46:37 -04:00
Deluan Quintão
cc315dcc8c
perf(db): keep query planner statistics trustworthy with full ANALYZE (#5740)
* perf(db): keep query planner statistics trustworthy with full ANALYZE

PRAGMA optimize's internal ANALYZE runs with a limited analysis budget
(~2000 rows) that writes wrong sqlite_stat1 entries for low-cardinality
indexes: on a 96K-track library it claimed (missing, library_id) narrows
to ~2000 rows when it matches the whole table. The planner then prefers
that index over the sort index and falls back to a full-table temp
B-tree sort per request, turning paginated song listings into
multi-second queries (reproduced at 5.5s on real hardware; ~90x slower
than with correct stats). Every index-creating migration re-triggered
the poisoning via the post-migration optimize, and the daily optimizer
could re-trigger it on large library changes. Setting analysis_limit on
the connection does not help: optimize ignores it.

Run a plain full ANALYZE instead: after migrations with schema changes,
and in db.Optimize (daily schedule and scan-end). Stats are stored in
the database file, so one connection suffices and the per-connection
pool loop is gone. The Optimize call at shutdown is removed: stats are
maintained at migration/scan/daily points, and an ANALYZE during
shutdown only delays it and races container stop timeouts.

* perf(db): drop startup PRAGMA optimize that re-poisons planner stats

The startup PRAGMA optimize=0x10002 runs SQLite's budget-limited internal
ANALYZE (bit 0x02), which writes truncated sqlite_stat1 rows for
low-cardinality indexes -- the exact statistics-poisoning this PR set out to
eliminate. Because DevOptimizeDB defaults to true, a restart with no pending
migrations would re-poison the planner until the next scan or daily Optimize.

Remove it: statistics are already refreshed with a full ANALYZE after
schema-changing migrations (Init) and via Optimize at scan-end and on the daily
schedule, so nothing on the startup path needs to touch them. Also clarify that
Optimize is a no-op unless DevOptimizeDB is enabled.

* chore(db): remove the DevOptimizeDB flag and skip Optimize on quick scans

The flag only gated the optimize/ANALYZE maintenance calls and there is
no reason to leave planner statistics unmaintained; the guards are gone
along with the flag. The scan-end Optimize now runs only after full
scans — quick scans barely move the statistics, and the daily schedule
covers drift.

* style(scanner): drop redundant comment in runOptimize

* chore(persistence): drop the no-op PRAGMA optimize from ScanEnd

Mask 0x10000 only selects candidate tables by size change; without the
0x02 action bit optimize does nothing (verified: sqlite_stat1 stays
stale after a 100x table growth). The scan-end statistics refresh is
db.Optimize's full ANALYZE, and the expression-collation-index concern
the old comment guarded against no longer applies.

* fix(scanner): run the post-scan ANALYZE in the server process

With the external scanner (the default), the scan pipeline runs in a
subprocess, so its ANALYZE was invisible to the server: SQLite loads
sqlite_stat1 into the process's shared schema cache, and an ANALYZE from
another process does not refresh it — verified with the production DSN
that even brand-new pool connections keep planning with the old
statistics until the server restarts. An in-process ANALYZE, by
contrast, is immediately visible to every pooled connection through the
same shared cache.

Move the full-scan Optimize from the scanner pipeline to the scan
controller, which always runs in the server process.

* fix(scanner): honor promoted full scans in the optimize gate

A quick scan resuming an interrupted full scan is promoted inside the
scanner (possibly in a subprocess); mirror the promotion in the
controller so the post-scan ANALYZE isn't skipped.

* refactor: apply cleanup review findings

- drop forceFullRescan's inline ANALYZE: Init already runs a full
  ANALYZE after any migration batch with schema changes, so upgrades
  including a full-rescan migration analyzed the whole DB twice
- resumingFullScan uses a filtered CountAll instead of fetching and
  scanning all libraries
- document why CallScan (CLI) deliberately skips the post-scan Optimize

* perf(db): make planner analysis maintenance resilient

Check analysis freshness every 30 minutes and refresh statistics when the last successful run is over 24 hours old or a scan marked them pending. Persist successful analysis state, retry skipped or failed maintenance, coordinate checks with scans, and cover standalone CLI full scans.

* perf(db): avoid analyzing routine quick-scan changes

Reserve pending analysis for full scans, unscanned libraries, and retry state. Incremental quick scans now rely on the 24-hour freshness window instead of triggering a full ANALYZE at the next maintenance check.

* fix(scan): analyze resumed full scans in CLI

* fix(db): back off failed analysis retries

* feat(db): allow disabling scheduled analysis

* test(db): remove redundant analysis coverage

* refactor(db): split ANALYZE maintenance into optimize.go and dedupe call sites

- move query-planner statistics code from db.go to its own optimize.go
  (and matching optimize_test.go)
- log ANALYZE elapsed time inside Optimize/OptimizeIfNeeded instead of
  repeating the timing block at every call site
- drop the LastDBAnalyzeAttemptAt write on success: it is only read
  while failures >= 1, and every failure rewrites it first
- extract runPostScanAnalysis (cmd) and anyIncludedLibrary (scanner)
  helpers
2026-07-13 12:04:29 -04:00
Kendall Garner
4998ac2c59
feat(server): add scrobble history Native API (#5761)
* initial scrobble api

* feat: add scrobble retrieval api

* address feedback (1)

* fix spelling

* be explicit about get

* add primary key field, update index, remove rowid references

* use unix timestamp for input and output

---------

Co-authored-by: Deluan Quintão <deluan@navidrome.org>
2026-07-13 11:32:03 -04:00
Deluan Quintão
6b9f85efcc
fix(subsonic): omit bit depth for lossy targets in transcode decision (#5768)
getTranscodeDecision was copying the source file's bit depth into the
transcodeStream details, so a 24-bit FLAC negotiated to Opus reported
audioBitdepth=24. Lossy codecs (Opus, MP3, AAC) have no PCM bit depth,
and ffmpeg only honors a bit depth constraint (-sample_fmt) for lossless
outputs, so the value was both meaningless and misleading to clients
that use it as a quality indicator.

Only set the transcoded stream's bit depth when the target format is
lossless; a zero value omits audioBitdepth from the response. This also
makes audioBitdepth codec limitations a no-op for lossy targets instead
of rejecting the profile. Lossless targets (e.g. FLAC->FLAC downconvert)
keep reporting and clamping bit depth as before.
2026-07-12 13:27:01 -04:00
Deluan Quintão
e91687e760
fix(smartplaylist): reject NSP mixing top-level 'any' and 'all' (#5759)
* test(scanner): fix flaky Windows search_normalized rescan test

The 'repopulates a stale search_normalized on a full rescan' spec runs
two full scans back-to-back. Whether the second scan refreshes the
unchanged artist depends on folderEntry.isOutdated(), which compares
folder.updated_at (written during the first scan) against the second
scan's library.last_scan_started_at using a strict time.Before(). Both
are time.Now() values captured milliseconds apart.

On Linux's fine-grained clock they are always distinct, so the test
passes. On Windows the coarse wall-clock granularity frequently makes
the two timestamps land in the same tick and compare equal, so
Before() returns false, the folder is treated as up-to-date and
skipped, the artist is never re-persisted, and search_normalized stays
empty -- failing the assertion intermittently across unrelated PRs.

Backdate the folder's updated_at an hour before the second scan so the
comparison is unambiguous on every platform. This is a test-only
timing artifact (real rescans never run milliseconds apart on an
unchanged library), so no production code changes are needed.

* fix(smartplaylist): reject NSP mixing top-level 'any' and 'all'

A smart playlist (.nsp) that specified both a top-level "any" and a
top-level "all" group was imported by silently keeping only "any" and
discarding "all", regardless of key order. The Criteria model holds a
single top-level Expression, so it cannot represent both groups, and the
parser picked "any" without reporting the dropped rules.

Make Criteria.UnmarshalJSON return an error when both keys are present at
the top level, so the scanner fails loudly (logging the playlist as
invalid) instead of silently losing rules. Users should nest one group
inside the other, as shown in the documented examples.

Fixes #5757

* fix(smartplaylist): reject top-level any+all by key presence

Address code review feedback: the previous guard checked decoded slice
lengths, so it only rejected the mixed top-level any/all form when both
groups were non-empty. An input like {"any":[],"all":[...]} (or a
null group) slipped past and silently used just one group — the same
class of silent drop this change set out to prevent.

Decode the two keys as json.RawMessage and detect presence by key rather
than length, so any file that provides both top-level keys is rejected
regardless of whether one group is empty or null.

* refactor(smartplaylist): detect top-level any+all via presence type

Replace the json.RawMessage + manual double-unmarshal in
Criteria.UnmarshalJSON with a small optionalConjunction wrapper whose
UnmarshalJSON records that its key was present. Because encoding/json
invokes UnmarshalJSON even for a JSON null, this keeps the exact
behavior (a present-but-empty or null group still counts, so mixing
both top-level keys is rejected) while decoding in a single pass — no
raw-message capture, no re-decode, no shadow variables.

No behavior change; existing tests pass unchanged.
2026-07-10 20:27:29 -04:00
Deluan Quintão
7fa13761d7
fix(scanner): resolve file symlinks with the production local storage FS (#5755)
* fix(scanner): resolve file symlinks with the production local storage FS

The symlink classification added for GHSA-r5qr-m328-qcf4 relied on
fs.ReadLink, but the local storage FS wraps os.DirFS behind the fs.FS
interface, hiding its ReadLinkFS implementation. Every resolution failed
at the first hop, so the scanner silently skipped ALL file symlinks,
regardless of target or the FollowSymlinks setting. Libraries made of
symlinks (e.g. shared-pool setups) lost all their tracks after
upgrading to 0.63.

The local storage now exposes full OS-level resolution (EvalSymlinks)
through a new optional storage.SymlinkResolverFS interface, which the
scanner prefers over the fs.ReadLink hop loop. This also classifies a
chain by its FINAL target even when it passes through an audio-named
intermediate outside the library, closing a bypass the hop loop had.

Regular (non-symlink) entries keep the same early-return path, so scan
performance is unaffected for normal libraries.

Fixes #5752

* fix(test): keep watcher specs off the real local storage

The watcher specs spawn watchLibrary goroutines that are not joined on
spec teardown. Now that the scanner test binary registers the file://
storage, those leaked goroutines reached newLocalStorage, which reads
conf.Server on construction, racing with the configtest cleanup that
restores the config snapshot (caught by CI's race detector). Point the
mock libraries at a fake storage scheme, which never touches the config
and does not support watching, so the goroutine exits immediately.

* fix(storage): reject invalid fs paths in ResolveSymlink

Defense-in-depth for the SymlinkResolverFS contract: names must be valid
fs.FS paths. A lexical ".." in the name would otherwise escape the
library root via filepath.Join cleaning. No current caller can produce
such a name (they come from ReadDir walks), but the guard enforces the
documented contract at the boundary.
2026-07-10 10:52:05 -04:00
Deluan Quintão
4652b46602
fix(plugins): populate username for buffered plugin scrobbles (#5736)
Plugin scrobblers read the username from the request context via
getUsernameFromContext, but buffered scrobbles are persisted to the DB
scrobble buffer (which stores only the userId) and later drained by a
background worker running on context.Background(). That context carries
no authenticated user, so ScrobbleRequest.Username was always empty for
WASM scrobbler plugins. NowPlaying is unaffected because it is dispatched
synchronously on context.WithoutCancel(requestCtx), which retains the user.

Restore the user in the drain path: processUserQueue now looks up the
user by the buffered userId and injects it into the context via
request.WithUser before dispatching, mirroring the pattern already used
in play_tracker. Builtin scrobblers are unaffected as they resolve the
account from the userId argument rather than the context.
2026-07-08 12:37:42 -04:00
Deluan Quintão
f48943c058
fix(plugins): discard buffered scrobbles when a plugin is removed (#5737)
* fix(plugins): discard buffered scrobbles when a plugin is removed

Scrobbles are buffered in the DB per service, keyed by the plugin name.
When a plugin was removed (deleted from the plugins folder and detected by
the sync), its pending buffer entries were left behind forever: the drain
goroutine is stopped on the next scrobbler refresh, so the rows were never
retried nor discarded. Worse, if a plugin with the same name was installed
later, the stale entries would be drained into it - potentially a completely
unrelated plugin that just reuses the name.

Add a Discard(service) method to ScrobbleBufferRepository and call it from
removePluginFromDB, right after the plugin record is deleted. Disabling a
plugin intentionally keeps its buffered scrobbles, consistent with the
buffer's purpose of surviving temporary outages, and transient unload/reload
cycles during config updates are unaffected since they never delete the
plugin record.

* fix(plugins): don't wipe builtin scrobbler queues on plugin removal

Buffer entries are keyed by service name only, and removePluginFromDB runs
for any removed plugin file, so removing a plugin named e.g. lastfm.ndp -
regardless of its capability - would discard the builtin Last.fm retry
queue. Skip the discard when the plugin name is owned by a registered
builtin scrobbler, exposed via a new scrobbler.IsBuiltinScrobbler helper.
Reported by Codex review on the PR.

Also drop the testBroker usage from the new removePluginFromDB spec: it is
defined in manager_test.go which is excluded on Windows, breaking the
Windows test build. sendPluginRefreshEvent is nil-safe, so no broker is
needed.
2026-07-08 12:37:17 -04:00
Deluan Quintão
01b7c86f90
fix(scanner): stop logging expected lyrics sniff misses as warnings (#5702)
* fix(scanner): stop logging expected lyrics sniff misses as warnings

During a scan, embedded lyrics are parsed with an empty suffix, which puts
ParseLyrics into content-sniffing mode: it tries the TTML, SRT and Lyricsfile
YAML parsers in turn before falling back to plain text. Every plain-text or LRC
lyric therefore fails the structured probes on its way to the fallback, and each
failure was logged at warning level with no indication of which file triggered
it, flooding the scan log with benign "Error parsing lyrics, falling back to
plain text" messages.

A probe rejecting content it does not own during sniffing is expected control
flow, so it is now logged at trace instead. A parse failure under an explicitly
requested suffix (e.g. a malformed .yaml/.srt/.ttml sidecar) still warns, since
the user declared that format. ParseLyrics gains ctx and path parameters so any
warning names the offending file and carries request context where available;
all call sites are updated accordingly.

Also fixes a test-isolation bug in the new logging spec: the BeforeEach swapped
the process-global default logger via SetDefaultLogger but only restored the log
level on cleanup, leaking the null logger and its hook into later specs in the
shared model suite.

* test: use spec-scoped contexts instead of context.Background in lyrics tests

Replace context.Background() with GinkgoT().Context() (and b.Context() in the
parse benchmarks) across the lyrics-related tests, so contexts are cancelled
when each spec ends. The embeddedLyrics fixture in core/lyrics is now a
hand-written literal like its sibling fixtures, removing the construction-time
ParseLyrics call that could not use a spec-scoped context.

* refactor(model): attach lyrics parse log attribution via context

Narrow ParseLyrics back to (ctx, suffix, lang, contents), dropping the path
parameter added by the previous commit. Attribution now uses the codebase's
existing idiom: callers that know the source attach it with log.NewContext
(e.g. "file" for the media file or sidecar), and the plugin adapter tags both
the plugin name and the track, fixing probe-miss logs that misattributed
plugin-returned content to the file's own tags. This removes three adjacent
string parameters that were easy to swap silently, and the "" placeholder most
call sites had to pass.

Also hardens the logging spec from the previous commit: the null test logger is
now swapped in before raising the level (SetLevel forces the current default
logger to trace, so the old order left the null logger at info and trace
entries never reached the hook), the sniff test now asserts probe misses are
observable at trace with file attribution instead of only asserting the absence
of warnings, and cleanup restores the actual previous logger — via a new return
value on log.SetDefaultLogger — instead of a bare logrus.New() that would
discard hooks configured on the process-wide logger.

* refactor(lyrics): hoist attributed log contexts out of loops

Address review feedback on #5702: build the log-attributed context once per
operation instead of per iteration, and reuse it on the surrounding log calls
so the error/trace lines around ParseLyrics carry the same attribution fields.
In fromExternalFile the sidecar path now rides the context for all log lines
in the function, replacing the repeated explicit "path" field.

* style(model): pass lyrics parse errors as final log arguments

Per the project logging convention, errors go as the last argument (the log
package normalizes them via its error case) instead of a keyed "error" pair,
which stores the raw error value and bypasses that handling. Flagged by review
on #5702; the keyed form was inherited from the original warning line.
2026-07-02 09:46:57 -04:00
Deluan Quintão
bd9fa1c602
feat(listenbrainz): match collaboration top-songs via all credited artist MBIDs (#5670)
* refactor(agents): drop single Artist fields from Song, keep only Artists

Song now represents credited artists solely via the Artists slice; the
single Artist/ArtistMBID fields and the ArtistList passthrough are removed.
Equals continues to hash the whole value.

* refactor(lastfm,listenbrainz): build Song.Artists in built-in agents

Last.fm and ListenBrainz now populate the Artists slice directly. For
ListenBrainz top songs, all credited artist MBIDs are mapped (the combined
display name on the first credit plus MBID-only collaborators) instead of
keeping only the first MBID, feeding the matcher's per-MBID specificity.

* refactor(external): set Song.Artists in top-songs enrichment

getMatchingTopSongs now seeds an Artists entry from the known artist when a
song carries none, replacing the single Artist/ArtistMBID writes.

* refactor(plugins): fold single-artist SongRef into Song.Artists

SongRef keeps its single Artist/ArtistMBID fields as part of the plugin wire
contract; songRefToAgentSong now folds them into a one-element Artists list
when a plugin sends no artists array.

* refactor(matcher): read Song.Artists directly

groupQueries consumes s.Artists now that ArtistList is gone; test inputs
build the Artists slice.

* fix(matcher): keep MBID-only artists as identity signals

Review follow-up: an artist credited only by MBID (empty ID and name) was
dropped before resolution in four places, defeating the multi-MBID matching
path this PR adds.

- matcher.groupQueries: treat a non-empty MBID as a usable artist signal
- external.getMatchingTopSongs: backfill the primary credit's name/MBID when
  the agent left them empty
- plugins.songRefToAgentSong: fold a single-artist SongRef when only ArtistMBID
  is set (not just when Artist name is set)
- listenbrainz.topSongArtists: return nil instead of an empty-name placeholder
  when neither name nor MBIDs are present

* fix(external): only backfill top-song artist onto an unnamed credit

Review follow-up (codex P2): the previous backfill stamped the queried
artist's MBID onto Artists[0] whenever it was empty, even when that credit
already named a different (e.g. featured) artist — producing a mismatched
name+MBID pair that could mis-rank matches. Now only an unnamed first credit
is filled (it is, by construction, the queried artist); an already-named
credit is left untouched.

Signed-off-by: Deluan <deluan@navidrome.org>

---------

Signed-off-by: Deluan <deluan@navidrome.org>
2026-06-26 17:06:14 -04:00
Deluan Quintão
7b7721f002
feat(matcher): match similar/top songs by multiple artists (#5668)
* feat(matcher): add Song.Artists (agents.Artist) and field-wise song dedup

* refactor(matcher): make song equality an agents.Song.Equals method via hashstructure

Move the sameSong free function from core/matcher into an Equals method on
agents.Song, following the model.MediaFile/Album.Equals convention. Uses strict
hashstructure hashing (nil opts, no IgnoreZeroValue) to preserve the original
whole-value equality contract. Tests moved to core/agents.

* feat(matcher): match by multiple artists with overlap ranking and artist-ID fast-path

* refactor(matcher): rank artist overlap and specificity above the preferred-track flag

Identity signals (specificityLevel, artistOverlap) now outrank the taste
signal (preferredMatch) in betterThan. A starred/4-star track that is a worse
identity match no longer beats a more specific or higher-overlap track.
PreferStarred still breaks ties when specificity and overlap are equal.

* fix(matcher): score artist-MBID specificity against all credited artists, not just the last

sanitizedTrack.artistMBID (string) replaced with artistMBIDs (map[string]struct{}) so
bucketTracks collects all credited owned MBIDs per query instead of last-write-wins.
computeSpecificityLevel tests set membership, letting each of a collaboration's
MBID-bearing artists reach the proper specificity level (4/5) independently.

* feat(plugins): carry multiple artists (with IDs) through SongRef conversions

* feat(plugins): regenerate schemas and PDK wrappers for multi-artist SongRef

* refactor(matcher): tidy bucketTracks accumulator and artist resolution

Replace bucketTracks' two parallel per-track maps (overlapByQuery/mbidsByQuery)
with a named queryAccum struct (F2). Collapse resolveArtists' four hand-mutated
parallel maps into a pendingArtist slice with derived nameToQueries/mbidToQueries
maps (F1). Replace the own() method on resolvedArtists with a package-level
addToSet helper that drops the method/receiver indirection (F3).

* docs(matcher): trim comments that restate the code

* fix(plugins): use Vec::is_empty for slice fields in generated Rust PDK

* fix(matcher): treat a resolved artist ID as an identity match for specificity

* docs(matcher): reflect artist-ID identity in the specificity ladder
2026-06-26 14:46:09 -04:00
Deluan Quintão
06993a8e04
test(storage): re-enable local storage tests on Windows (#5654)
* refactor(storage): extract LocalPathToURL from storage.For

* test(storage): re-enable local storage tests on Windows (#5381)

* test(storage): fix Windows drive-letter path expectation

The 'should handle Windows drive letters correctly' test was gated behind
the now-removed SkipOnWindows BeforeEach, so its expectation had never run.
On Windows, newLocalStorage re-joins u.Host+u.Path via filepath.Join, which
yields a backslash path (C:\music), not C:/music. Assert against
filepath.Join so the expectation matches the OS-native result.

* test(storage): probe Windows drive-letter path in LocalPathToURL

Three review bots flagged that LocalPathToURL escapes the drive-letter
colon (C: -> C%3A), which url.Parse rejects. There are no Windows bug
reports, so add a Windows-gated test that exercises the real conversion
on a drive-letter path and let CI decide whether the bug is real before
changing production code.
2026-06-22 21:33:14 -04:00
Deluan Quintão
b38054b29c
perf(artwork): faster image resize + update gen2brain/webp to v0.6.0 (#5652)
* fix(artwork): convert decoded images to a fast-path type before resizing

x/image/draw's CatmullRom scaler only has optimized paths for *image.RGBA,
*image.NRGBA, *image.Gray and *image.YCbCr. Other concrete types — notably
*image.NYCbCrA (from WebP) and *image.Paletted (indexed PNGs) — fall back to
a generic per-pixel At()/RGBA() loop that is several times slower.

Convert such images to *image.RGBA once before scaling; fast-path types are
returned unchanged. This makes resize performance independent of which decoder
wins the image.Decode("webp") registration, and also speeds up indexed PNGs.

Signed-off-by: Deluan <deluan@navidrome.org>

* chore(deps): update gen2brain/webp to v0.6.0

v0.6.0 replaces the wazero WASM runtime with a self-contained
wasm2go-transpiled WebP decoder/encoder. This drops the webp -> wazero
dependency edge (wazero is still used by the plugin system) and makes the
WASM-only build path (32-bit / nodynamic) faster and far lighter on
allocations.

Signed-off-by: Deluan <deluan@navidrome.org>

* perf(artwork): defer fast-path conversion until a resize is needed

Move toFastScaleType to just before the CatmullRom.Scale call, after the
no-upscale early return. Previously the conversion ran right after decode, so a
request for a size >= the source dimensions would allocate and walk a full RGBA
copy only to discard it when resizeStaticImage returns nil. The resize path is
unchanged; the no-op path drops ~30-40% time and up to ~79% memory for large
indexed/WebP artwork.

Signed-off-by: Deluan <deluan@navidrome.org>

---------

Signed-off-by: Deluan <deluan@navidrome.org>
2026-06-22 16:33:01 -04:00
Deluan Quintão
803b385920
fix(matcher): match by artist credit so artist-MBID specificity works and collaborators match (#5637)
* refactor(matcher): carry resolved artist MBID on sanitizedTrack

* feat(matcher): two-phase artist resolution for title matching

* fix(matcher): wire phase-1 artist mock in consumer tests; guard back-map dupes

- External tests for title-fallback paths now register a second `.Maybe()`
  artistRepo.GetAll expectation for the matcher's phase-1 artist-resolution
  call, and supply RoleArtist Participants on phase-2 track mocks so the
  back-map routes tracks to their query buckets correctly.
- Back-map loop extracted into buildTracksByQuery helper; guard ensures each
  track is appended at most once per query bucket even when it credits multiple
  resolved artists in that bucket, preventing duplicate scoring.
- matchTitlePhase2 helper: removed redundant squirrel.Sqlizer type assertion
  (ranging over squirrel.And already yields Sqlizer).

* perf(matcher): use non-correlated IN subquery for phase-2 lookup

* refactor(matcher): decompose two-phase title matching into named steps

matchByTitle had grown to ~98 lines holding four jobs and eleven locals. Split
it into a thin orchestrator over named phases:

- groupQueriesByArtist: build the per-artist query buckets.
- resolveArtists / resolvedArtists: phase 1, with the three parallel maps
  (byQuery / mbid / allIDs) folded into one type that owns artist-ID routing and
  track bucketing. Artist ownership is now two direct map lookups (by order name,
  by MBID) instead of the prior O(artists x queries) nested scan.
- fetchTracksCreditedTo: phase 2, using squirrel.Placeholders instead of a
  hand-rolled placeholder string.
- bucketTracks / scoring loop: unchanged behavior.

Pure restructuring; the suite, race, consumers, and the real-DB benchmark are all
unchanged. Also dedupes the phase-1 MBID filter as a side effect.

* refactor(matcher): apply simplify cleanups to two-phase resolution

Behavior-preserving cleanups from a /simplify pass:
- struct{} sets instead of bool-valued sets (codebase convention)
- move newSanitizedTrack after the dedup guard in bucketTracks, so a track
  credited to multiple resolved artists is sanitized only when actually bucketed
- pre-size the phase-1/phase-2 maps; drop the dead nil-guard in own()
- slice.Map for the []string->[]any arg conversion
- document why the raw media_file_artists SQL stays in this layer, and that
  bucketTracks relies on the bulk participants JSON carrying artist IDs
- extract an artistParticipants() test helper, collapsing 57 four-level
  Participants literals (test file -211 lines net)

* docs(matcher): rename inner title-matching steps to avoid 'phase' clash

The matcher's top-level strategies (ID/MBID/ISRC/Title) are already called phases.
Reusing 'phase 1/2' for the two steps inside title matching (resolve artists,
fetch their tracks) was confusing. Drop the ordinals and let the function names
(resolveArtists, fetchTracksCreditedTo) and prose describe the steps. Renamed the
matchTitlePhase2 test helper to matchTracksByArtistQuery. Comment-only; no behavior
change.

* fix(matcher): own MBID-resolved artists for every aliased query

Address bot review on PR #5637. When several agent queries share one
ArtistMBID under different sanitized names (agent aliases), the resolver
kept only the last query name per MBID, so the others never owned the
resolved artist and their songs fell through. Track all query names per
MBID instead; add a RED-proven test for the two-alias case.

Also invert byQuery into a reverse artist-ID -> query-name index in
bucketTracks, dropping the per-participant scan over all queries, and
guard fetchTracksCreditedTo against an empty artist-ID slice. Fix the
artist mock to forward variadic options with Called(options...) so
QueryOptions-shaped matchers receive the same argument shape as real
calls.

* docs(matcher): trim comments that restated the code

Cut three doc comments down to their why: groupQueriesByArtist, own, and
bucketTracks no longer restate what the signature and body already show.
Condense fetchTracksCreditedTo's rationale from two paragraphs to one,
keeping the role='artist', non-correlated-IN, and layer-boundary notes.
2026-06-21 11:05:58 -04:00
Deluan Quintão
6486a27634
refactor(matcher): index-space resolution + batched title lookups (#5635)
* refactor(matcher): resolve matches in song-index space

* test(matcher): pin per-index duration matching for duplicate title+artist songs

* refactor(matcher): drop unreachable specificity sentinel

* refactor(matcher): hoist PreferStarred read out of scoring loop

* docs(matcher): correct config field references in MatchSongs doc

* fix(matcher): log swallowed per-artist DB error in title matching

* fix(matcher): fail title matching when all artist lookups error

* refactor(matcher): simplify loaders and test helpers

* docs(matcher): move algorithm docs to package-level doc.go

* docs(matcher): focus examples on fuzzy matching behavior

* refactor(matcher): store index in dedup map and harden test helper

* fix(matcher): keep exact-phase matches when all title lookups fail

* perf(matcher): batch title-phase artist lookups into one query

matchByTitle issued one GetAll per distinct artist, run serially. On a large
library a batch of similar-songs spans dozens of artists, and profiling against
a 95k-track library showed the matcher was ~90% bound in that serial query loop
(a 100-song batch fired ~89 separate multi-join queries, taking ~6s).

Replace the loop with a single 'order_artist_name IN (...)' query, then group the
returned tracks by artist in memory and score each song against its bucket. This
cuts a 100-song batch from ~6s to ~0.4s (roughly 14x) with less memory.

Grouping keys on order_artist_name (the field the query filters on, matching how
the per-artist queries are keyed), falling back to the sanitized Artist when it
is unset. Because there is now a single query, matchByTitle is all-or-nothing
like the ID/MBID/ISRC loaders: the per-artist best-effort skip is gone, while
resolveMatches still preserves exact-phase matches when the title query fails.

* refactor(matcher): group batched title matches by order_artist_name

After batching the title-phase lookups into one query, the returned tracks must
be grouped back to their artist. Key on MediaFile.OrderArtistName — the exact
field the query filters on — so collaboration/"feat." tracks (whose display
Artist differs from the sort artist) bucket correctly, with a sanitized-Artist
fallback when it is unset.

OrderArtistName is deprecated in favor of Participants, but the bulk GetAll path
does not hydrate participant detail (the rich artist fields come only from the
per-record GetWithParticipants JOIN), so the participant order name is empty here
and the column is the only populated source.

Also adds a TODO in computeSpecificityLevel: its artist-MBID levels read the
deprecated, unpopulated MediaFile.MbzArtistID column, so they never fire today.
2026-06-21 03:45:56 -04:00
Deluan Quintão
aa5aa731dc
refactor(lyrics): single ParseLyrics entry point + all-format plugin lyrics (#5632)
* refactor(lyrics): read sidecar files via library storage FS

Routes fromExternalFile reads through storage.For(mf.LibraryPath) instead
of os.Open on AbsolutePath, fixing sidecar reads for non-local backends.
UTF-16 LE/BE and BOM handling preserved via ioutils.UTF8Reader.

* refactor(lyrics): address review feedback on sidecar FS read

- Move blank local-storage import from sources.go into lyrics_suite_test.go
  (the test suite already imports the local package for RegisterExtractor,
  so local's init() runs; production binaries get the scheme via normal wiring)
- Fix misleading comment: model.ParseLyrics → model.ParseLyricsFile
- Replace what-comment with why-comment in BeforeSuite explaining the
  log.Fatal guard that requires the no-op extractor registration

* test(lyrics): add subsonic e2e baseline for getLyrics endpoints

Establishes a behavioral baseline for getLyricsBySongId (v2 structured)
and getLyrics (legacy) before the lyrics parser refactor. Covers embedded
formats (LRC synced, plain text, TTML) and sidecar formats (LRC, SRT,
YAML), all isolated under a Lyrics/ fixture folder so the new fixtures
do not perturb existing test behavior beyond fixture counts.

Sidecar files are injected as raw &fstest.MapFile{Data: []byte(...)}
entries; the scanner skips non-audio extensions (.lrc, .srt, .yaml) so
they are invisible to scanning but reachable via the fake FS at request
time through fromExternalFile/storage.For.

Update album/artist/song counts in the album-list, multi-library, and
search3 empty-query tests to reflect the six new tracks (1 new artist,
1 new album, 6 new songs).

* test(lyrics): strengthen e2e lyrics baseline (lang assertions, rename helper)

Rename the local helper `main` to `firstLyric` to avoid collision with the
reserved-feeling built-in name. Add `Lang` assertions to both embedded and
sidecar DescribeTable entries, locking the current observed values: "xxx"
(ISO 639-2 "no language specified") for all embedded and LRC/SRT sidecars,
and "eng" for the YAML sidecar (which explicitly sets `language: eng`).

* feat(lyrics): detect Lyricsfile YAML in content-sniffing

* feat(plugins): content-sniff plugin lyrics for all formats

Replace model.ToLyrics (LRC/plain only) with model.ParseEmbedded so plugin
responses are content-sniffed for TTML, SRT, YAML, LRC, and plain text.
ParseEmbedded returns a LyricList, so the loop now flattens multiple tracks
per response entry.

The test-lyrics WASM plugin gains a "ttml" format mode (configured via
pdk.GetConfig) that returns a minimal TTML document; rebuilt with the
standard Go wasip1 toolchain (GOOS=wasip1 GOARCH=wasm). A new Ginkgo test
asserts Synced==true and the exact cue value, which the old plain-text path
could not produce.

GetLyrics doc comment updated to reflect content-sniffing; a later task will
retarget it to ParseLyrics once that function is introduced.

* test(plugins): validate plugin lyrics auto-detect across all formats

The test-lyrics WASM plugin now supports per-format modes via the
"format" config key: ttml, srt, yaml, lrc, and plain, in addition to
the existing default plain-text response. The plugin is rebuilt with the
standard Go wasip1 compiler.

lyrics_adapter_test.go gains a DescribeTable covering all five formats,
asserting both Synced (the discriminator that proves correct format
detection) and the exact line value. This validates the full
auto-detect chain (TTML → SRT → YAML/Lyricsfile → LRC → plain) end-to-end
through the real plugin → adapter → parser flow.

* refactor(lyrics): consolidate parsers into model.ParseLyrics

* refactor(lyrics): retarget legacy callers to model.ParseLyrics

Pin suffix to ".lrc" to preserve byte-identical output for stored
plain/LRC text that was previously handled by the now-removed ToLyrics.

* test(lyrics): fix lyrics tests after parser consolidation

- Rewrite the YAML-fallback test to assert the correct design: a
  non-Lyricsfile .yaml sidecar returns as plain text and shadows
  lower-priority sources (rather than falling through to .lrc).
- Add LibraryPath + relative Path split to the three subsonic tests
  that read sidecar files via storage.For(), so they resolve against
  the correct fixtures directory.
- Register a no-op extractor in api_suite_test.go BeforeSuite so
  newLocalStorage does not fatal when storage.For is called during
  sidecar-lyrics tests.

* test(lyrics): add per-format ParseLyrics benchmarks

Baseline measurements (count=2 runs) on M2:

BenchmarkParseLyrics_LRC-8           	    5725	    178796 ns/op	  49.78 MB/s	  427877 B/op	     523 allocs/op
BenchmarkParseLyrics_Plain-8         	    5425	    230854 ns/op	  32.44 MB/s	  102508 B/op	      16 allocs/op
BenchmarkParseLyrics_EnhancedLRC-8   	    1942	    605893 ns/op	  17.66 MB/s	  860678 B/op	    4256 allocs/op
BenchmarkParseLyrics_SRT-8           	    3249	    373991 ns/op	  25.91 MB/s	 1113575 B/op	    4407 allocs/op
BenchmarkParseLyrics_TTML-8          	    1483	    813027 ns/op	  13.86 MB/s	 2198052 B/op	    8665 allocs/op
BenchmarkParseLyrics_YAML-8          	    1700	    678250 ns/op	  13.01 MB/s	 1235096 B/op	    8288 allocs/op
BenchmarkParseLyrics_SniffTTML-8     	    1525	    776482 ns/op	  14.51 MB/s	 2225448 B/op	    8681 allocs/op
BenchmarkParseLyrics_SniffSRT-8      	    2528	    451210 ns/op	  21.48 MB/s	 1157000 B/op	    4422 allocs/op
BenchmarkParseLyrics_SniffYAML-8     	    1333	    827152 ns/op	  10.67 MB/s	 1337195 B/op	    8718 allocs/op
BenchmarkParseLyrics_SniffLRC-8      	    2820	    413038 ns/op	  21.55 MB/s	  588934 B/op	    1812 allocs/op
BenchmarkParseLyrics_SniffPlain-8    	    2968	    409091 ns/op	  18.31 MB/s	  254470 B/op	    1491 allocs/op

Content-sniff path overhead: 1.5–15% depending on format.

* test(lyrics): use real public-domain fixtures for parser benchmarks

Replace synthetic benchmark payloads with 'Auld Lang Syne' (Robert Burns,
1788, public domain) rendered into every supported format (LRC, plain,
enhanced LRC, SRT, TTML, Lyricsfile YAML) so the numbers reflect realistic
content. Same song across formats makes per-format cost comparable.

Baseline (Apple M-series, -benchmem, real fixtures):
  LRC          ~28 us/op   42 KB   147 allocs
  Plain        ~23 us/op   18 KB    22 allocs
  EnhancedLRC  ~37 us/op   51 KB   374 allocs
  SRT          ~52 us/op  139 KB   581 allocs
  TTML        ~119 us/op  276 KB  1227 allocs
  YAML        ~142 us/op  193 KB  1732 allocs
  Sniff(LRC)   ~47 us/op   57 KB   237 allocs
  Sniff(TTML) ~122 us/op  282 KB  1250 allocs
  Sniff(YAML) ~186 us/op  218 KB  1847 allocs

Fixtures in tests/fixtures/lyrics/.

* fix(lyrics): preserve [] (not null) for empty lyrics in backfill migration

ParseLyrics returns nil for zero-line input (whitespace-only stored
lyrics). json.Marshal(nil LyricList) produces null, violating the DB
invariant that media_file.lyrics uses [] for empty lyrics, never null.
Initialize to model.LyricList{} when ParseLyrics returns nil so the
marshalled result is always [].

* refactor(lyrics): unify parser dispatch and centralize empty-list invariant

Apply thermo-nuclear review findings (behavior-preserving):

- Replace the suffix switch + three single-use closure adapters
  (parseTTMLKnown/parseSRTKnown + inline YAML closure) with a
  bySuffix map of a single lyricParser(lang, contents) signature.
  Normalize parseTTMLWithDefaultLang/parseSRTWithLanguage to that
  (lang, contents) order so no adapter glue is needed.
- Collapse the parallel sniffLyrics engine into one parseFirstMatch
  primitive shared by both the suffix and content-sniff paths
  (sniffOrder candidate list). TTML stays gated via parseTTMLIfDocument
  in sniff mode to avoid running the XML decoder on plain/LRC text.
- Add LyricList.MarshalJSON so empty/nil always serializes to [] (the
  lyrics column invariant), in one canonical place. Delete the
  migration's nil-guard, which the marshaler now subsumes.

Behavior verified unchanged: full suite + race + e2e green.

* refactor(lyrics): single registry drives both suffix dispatch and sniff order

Collapse the bySuffix map and sniffOrder slice into one ordered registry:
slice order is the content-sniff probe order, each row's suffixes drive
sidecar dispatch, and per-row bySuffix/byContent parsers preserve the
gated-TTML-when-sniffing distinction. One source of truth, no duplicated
parser references.

* refactor(lyrics): self-skipping parsers collapse the format table to one column

Move the TTML <tt>-document gate into parseTTMLWithDefaultLang itself (after
the encoding fixup, so UTF-16-declared docs are still recognized): non-TTML
content returns (nil, nil) to skip; a malformed <tt> document still errors.
SRT and Lyricsfile YAML already self-skip. With every structured parser
self-skipping, the format table drops to one {suffixes, parse} column named
lyricFormats — no bySuffix/byContent split, no separate sniff-only TTML gate.
Both the suffix and content-sniff paths share the same parser per format.

* refactor(lyrics): strip BOM once at ParseLyrics entry for all paths

Previously only the content-sniff path stripped the BOM; the suffix path
relied on its callers (fromExternalFile via UTF8Reader) having already
stripped it. That implicit contract was fragile — a caller passing raw
BOM-prefixed bytes with a suffix would reach the parsers with the BOM intact
(SanitizeText does not strip it). Strip once at entry so every path and
parser sees clean bytes regardless of caller. No-op for already-stripped
input.

* refactor(lyrics): trim verbose comments to essential why

* refactor(lyrics): move LRC parser to its own lyrics_lrc.go

Extract parseLRC, the enhanced-LRC helpers (parseEnhancedLine, adjustGroup,
stripEnhancedMarkers, shiftELRCCues), parseTime, and the LRC regexes from
lyrics.go into lyrics_lrc.go, with the parseLRC tests in lyrics_lrc_test.go.
This makes the layout symmetric — one file per format (lrc/srt/ttml/yaml) —
and leaves lyrics.go holding only shared types and cue normalization. All
moved symbols were already LRC-private; no behavior change.

* refactor(lyrics): collapse ParseLyrics suffix/sniff branches into one loop

Both modes differ only in which formats to try, so select candidates in a
single loop (all formats when sniffing, the suffix's own otherwise) and run
them through parseFirstMatch once. Drops the projected-slice make+index and
the ContainsFunc closure; unmatched suffixes yield no candidates and fall to
the plain-text floor, as before.

* refactor(lyrics): apply simplify-review cleanups

- stripBOM: bytes.TrimPrefix instead of []byte<->string round-trip (no alloc)
- ParseLyrics: pre-size the candidates slice
- move isTTMLDocument to lyrics_ttml.go beside its only caller (the dispatch
  layer should hold no per-format knowledge)

* refactor(lyrics): simplify test descriptions for structured lyrics

Signed-off-by: Deluan <deluan@navidrome.org>

* refactor(lyrics): fold parseLyricsfile into lyricParser signature and rename file

- parseLyricsfile now matches the lyricParser signature directly (reads via
  bytes.NewReader), removing the parseLyricsfileBytes adapter and the
  string(contents) copy; the lyricFormats table references it directly.
- StructuredLyrics drops the vestigial LyricList{} init (json.Unmarshal
  overwrites; MarshalJSON owns the empty->[] invariant).
- Rename lyricsfile.go -> lyrics_lyricsfile.go (and its test) to match the
  lyrics_<format>.go convention used by lrc/srt/ttml.

* refactor(lyrics): move test-only parseTTML/parseSRT wrappers to test files

These zero-arg wrappers (defaulting lang to "xxx") had no production callers
after the consolidation — only the format tests used them. Move each beside
its tests so the production files carry no test-only code.

* build: exclude generated *_gen.go files from linting

The plugin host *_gen.go files (ndpgen output) were tripping the whitespace
linter despite carrying a generated marker. Exclude them by path so make lint
and the pre-push hook pass on untouched generated code.

* perf(lyrics): drop []byte/string round-trips in parsers

Apply code-review feedback to remove avoidable allocations in the lyrics
parsers. isTTMLDocument now takes []byte directly, so parseTTMLWithDefaultLang
no longer copies its buffer into a string before the TTML probe. parseSRTBlock
splits its block with strings.Split instead of converting to []byte and back
per line. ParseLyrics hoists strings.ToLower(suffix) out of the format loop.

No behavior change; the dropped len(scanner)==0 SRT guard was dead (strings.Split
never returns an empty slice, and the existing len(lines)==0 check still covers
empty input).

Signed-off-by: Deluan <deluan@navidrome.org>

* refactor(lyrics): colocate and unexport cue-normalization helpers

Move the cue-normalization machinery out of lyrics.go into a dedicated
lyrics_normalize.go (with lyrics_normalize_test.go), leaving lyrics.go to hold
just the shared lyric types and their methods. lyrics.go was mixing the domain
type/contract definitions with format-agnostic post-processing.

Unexport normalizeLyrics, normalizeCueLines, and normalizeLineTiming: they have
no callers outside the model package, so they should not be part of its public
API. NormalizeCueEnds stays exported because the Subsonic enhanced-lyrics
serializer (server/subsonic/lyrics.go) resolves cue ends per agent group while
building the response; that is the only legitimate cross-package caller.

Also includes a small no-op robustness tweak in parseLRC: len(times) == 0
instead of times == nil (equivalent here, more idiomatic).

No behavior change.

* test(lyrics): add direct coverage for NormalizeCueEnds

NormalizeCueEnds is exported and carries the most intricate logic in the
normalization cluster (fill-from-next, fill-from-fallback, both clamps, and the
all-or-none clear), but was only exercised transitively. Add a focused spec
covering each branch plus the empty-input and no-mutation guarantees, bringing
the function to 100% coverage.

* test(lyrics): cover legacy getLyrics across formats and sources

Expand the legacy getLyrics e2e coverage from a single embedded-plain case to a
table over all six fixtures: embedded LRC/plain/TTML and sidecar LRC/SRT/YAML.

Each case asserts the v1 plain-text fallback contract — the structured lyric is
flattened to LRC-style plain text with no timing markup leaking through (no LRC
brackets, SRT arrows, or XML tags), regardless of the source format or whether
it is embedded or a sidecar file. This pins the behavior that synced TTML/SRT/
YAML formats degrade gracefully to plain text on the legacy endpoint.

* test(lyrics): cover songLyrics v1 vs v2 with word-level fixtures

Correct and expand the e2e lyrics coverage to match the OpenSubsonic songLyrics
extension contract:

- v1 (getLyricsBySongId, no enhanced): line-level lyrics with no cueLine, kind,
  or agents — even for word-level formats (ELRC, Lyricsfile YAML).
- v2 (getLyricsBySongId?enhanced=true): word-level cueLine surfaces for ELRC and
  YAML sources; kind="main" is set; a line-level source (SRT) still yields no
  cueLine even when enhanced.
- legacy getLyrics (artist/title): the original Subsonic endpoint, flattening any
  format to plain text. A prior commit mislabeled this as the "v1 contract";
  getLyrics predates OpenSubsonic and is unrelated to the extension versions.

Drive these with the public-domain tests/fixtures/lyrics files (the same set the
parser benchmarks use) so the e2e content stays in sync and actually carries the
word-level timing needed to distinguish v1 from v2. The embedded "synced LRC"
fixture is upgraded to ELRC (word-level); track counts are unchanged, so the
rest of the suite is unaffected.

* test(lyrics): parameterize v2 enhanced coverage across all formats

Convert the v2 (enhanced) e2e block from three ad-hoc cases into a DescribeTable
covering all six formats, matching the v1 and legacy tables. Each entry declares
whether the source carries word-level timing: ELRC, TTML, and Lyricsfile YAML
surface a cueLine; LRC, SRT, and plain text do not. All six get kind="main".

Add word-level <span> timing to the first line of the auld-lang-syne.ttml
fixture so TTML exercises the word-level cueLine path (the parser already
supports <span begin/end>, but the fixture was line-level only). The first line
now yields the same five word cues as the ELRC and YAML fixtures, keeping the
table assertions uniform across formats.

* fix(lyrics): honor caller language when Lyricsfile YAML omits it

parseLyricsfile discarded the caller's language argument, so a Lyricsfile YAML
parsed from an embedded tag or plugin response with no metadata.language was
labeled "xxx" even when ParseLyrics was given a language. The SRT and TTML
parsers already use the caller language as their default; fall back to it here
too, preferring the document's own metadata.language when present.

Also reword a misleading TTML comment: isTTMLDocument still runs an XML decode
(it stops at the first element), so the skip avoids the full TTML parse, not the
XML decoder entirely.

* refactor(lyrics): consolidate lyrics parsing functions names

Signed-off-by: Deluan <deluan@navidrome.org>

* test(lyrics): drop test-only parse wrappers after parser rename

Commit 48c0173e8 renamed the production parsers to parseTTML/parseSRT, which
collided with the same-named test-only wrappers and broke the model test build
(parseTTML/parseSRT redeclared). Remove the wrappers and call the production
parsers directly with the placeholder language at each test site.

* test(lyrics): complete the truncated enhanced-LRC fixture

The auld-lang-syne.elrc fixture stopped after the first two stanzas (8 lyric
lines) while every other format fixture carries the full 24-line song. Extend it
to all 24 lines with per-word timing so it is a faithful enhanced-LRC sample and
the EnhancedLRC parser benchmark runs on a workload comparable to the others.
The first line's word timings are unchanged, so the e2e cueLine assertions still
hold.

---------

Signed-off-by: Deluan <deluan@navidrome.org>
2026-06-19 18:25:35 -04:00
Yuuta
3a14faa033
feat(subsonic): add structured sidecar lyrics support with OpenSubsonic v2 karaoke cues and agent layers (#5076)
Expand backend lyrics support with richer sidecar formats and upgrade the
OpenSubsonic songLyrics implementation to the version 2 structured karaoke
contract, while preserving version 1 behavior by default.

Sidecar formats and parsing:
- Add a TTML parser (core/lyrics/ttml.go): clock time, offset time, bare
  decimal seconds, nested timing contexts, and token-level <span> timing for
  word/syllable karaoke. Parses Apple Music-style metadata tracks (translation
  and pronunciation/transliteration) and agent metadata into per-track agents[]
  plus per-cue-line agentId. Hydrates missing line timing from cue timing.
- Add an SRT parser (core/lyrics/srt.go).
- Add a LRCLIB Lyricsfile (.yaml/.yml) parser (model/lyricsfile.go): maps
  per-word lines[].words[] to cues with inclusive UTF-8 byte offsets and
  attributes overlapping lines to synthetic voice agents so parallel vocals
  split correctly in the enhanced response.
- Extend LRC parsing for Enhanced LRC inline <mm:ss.xx> word-timing markers.
- Add UTF-8 BOM and UTF-16 LE support for TTML/LRC sidecars.
- Parse the above formats from embedded tags as well as sidecar files.

Source resolution:
- Default lyricspriority is now
  ".ttml,.yaml,.yml,.elrc,.lrc,.srt,.txt,embedded" so the new formats are
  discoverable without manual configuration.
- Preserve configured source priority across duplicate media-file candidates
  instead of only checking the first DB match, so higher-priority sidecar
  lyrics on older duplicates can still win.
- Raise the embedded-lyrics tag maxLength to 1 MB to fit word-timed
  TTML/Enhanced-LRC karaoke for a full song.

OpenSubsonic songLyrics v2:
- Advertise songLyrics versions [1, 2].
- With enhanced=true, getLyricsBySongId may return structuredLyrics.kind
  (main/translation/pronunciation), cueLine[] line-level karaoke groupings,
  cueLine.cue[] timed words/syllables with required UTF-8 byteStart/byteEnd,
  reusable structuredLyrics.agents[], and cueLine.agentId references.
- Without enhanced=true, the response stays v1-compatible: no kind, no cueLine,
  no agents, no non-main tracks; the existing line[] payload is always
  populated so legacy clients keep working.

Contract details:
- cueLine is emitted only for synced lyrics with cue data.
- Within a cueLine, cue.end is normalized all-or-none and overlaps are removed;
  overlaps across separate cueLines remain valid for parallel vocal layers.
- Missing cue end-times are filled from the next cue or the parent line.
- When cueLines share an index, the one whose agent has role "main" is first.
- LyricCue.Value is serialized as XML chardata; cues with nil start are skipped
  rather than serialized as 0.

Refactoring:
- Move pure format parsers into model/ (lyrics.go, lyrics_ttml.go,
  lyrics_srt.go, lyrics_embedded.go, lyricsfile.go) and extract Subsonic
  response building into server/subsonic/lyrics.go.
- Centralize lyric-kind constants and add Lyrics.EffectiveKind/IsMainKind.
- Add gg.Clone helper.

Spec references:
  https://github.com/opensubsonic/open-subsonic-api/discussions/213
  https://github.com/opensubsonic/open-subsonic-api/pull/218 (songLyrics v2)
  https://github.com/opensubsonic/open-subsonic-api/pull/228 (cue byte offsets)
2026-06-19 12:00:58 -04:00
Deluan Quintão
6abc2ed517 fix(transcoding): preserve source metadata when transcoding downloads (#5628)
* fix(transcoding): preserve source metadata when transcoding downloads

Default transcoding commands used `-map 0🅰️0` with no metadata mapping, so
transcoded files lost all source tags (title, artist, album, etc.). Downloads
in the original format were unaffected because the file is copied byte-for-byte.

Add `-map_metadata 0 -map_metadata 0:s:0` to the default commands. Both flags
are required: `-map_metadata 0` copies format-level tags (MP3/FLAC sources)
and `-map_metadata 0:s:0` copies stream-level tags (OPUS/OGG sources), which
store tags at different levels.

The flags are added in three coordinated places, since for users on the default
command the args are built programmatically (buildDynamicArgs) rather than from
the stored command string:
- consts.go default commands, for new installations
- buildDynamicArgs, the active path for default-command users
- a migration updating only rows that still hold the exact old default, so
  customized commands are left untouched

AAC is included for consistency but remains a no-op: its `-f adts` container
cannot hold metadata, and the MP4 alternative breaks pipe streaming.

Fixes #5623

* fix(transcoding): target audio stream for metadata and propagate ctx

Address review feedback on the metadata-preservation change:

- Use `-map_metadata 0:s:a:0` instead of `0:s:0` to copy tags from the first
  audio stream specifically. When a source has embedded cover art exposed as a
  video stream at index 0 (common in music files), `0:s:0` pulls the image
  stream's metadata and the audio tags are lost. Verified empirically with
  ffmpeg 7.1.3: a source with video at stream 0 and a tagged audio stream loses
  its title under `0:s:0` but keeps it under `0:s:a:0`; audio-only OPUS/MP3/FLAC
  sources are unaffected by the change.

- Propagate the migration context via `tx.ExecContext(ctx, ...)` instead of
  discarding it, so the migration honors cancellation/timeouts.

Claude-Session: https://claude.ai/code/session_015iFHDzX53wCKt11qFHMeZk
2026-06-18 09:58:43 -04:00
Deluan Quintão
838ceee26d
perf(subsonic): speed up artist search3 deep-offset pagination (#5620)
* perf(subsonic): speed up artist search3 deep-offset pagination

Empty-query and FTS artist search (search3/search2) paginated via a
CROSS JOIN library_artist + DISTINCT in Phase 1 purely for library access
control. The DISTINCT forced a temp b-tree over the whole junction table on
every page, making deep offsets O(offset): ~200ms at offset 299k on 300k
artists.

Replace it with a join-free EXISTS predicate keyed on artist.id, backed by a
new covering index on library_artist(artist_id, library_id). EXISTS keeps
artist as the ordered driver and never fans out rowids, so Phase 1 stays a
plain ordered scan that LIMIT/OFFSET can short-circuit. Admin, headless, and
all-libraries users skip the filter entirely (the dominant case) for a flat
ordered walk over the primary key.

Measured on a 300k-artist / 1M-song library: admin/all-libs pagination is
~4.5-5.4x faster at depth (~180ms to ~33ms at offset 400k); restricted
subset users keep correct, gap-free pages while also getting faster.

The narrowing artist filter is applied at the subsonic layer only when the
request targets a strict subset of the user's libraries, so the common case
(and the admin fast-path) is never burdened with a redundant predicate.

* fix(subsonic): narrow artist search by library set, not count

narrowsArtistLibraries decided whether to add the subsonic-layer artist
narrowing filter by comparing len(requested) < len(accessible). musicFolderId
is not deduplicated, so duplicate IDs inflated the requested count: a user
requesting ?musicFolderId=1&musicFolderId=1&musicFolderId=2 against three
accessible libraries produced len([1,1,2])==3, which is not < 3, so the filter
was skipped and the user saw artists from the third library too.

Compare as set membership instead: the request narrows iff some accessible
library is absent from it (requested is always a subset of accessible, validated
upstream by selectedMusicFolderIds). This is immune to duplicate IDs. Add a
regression test that fails against the old length-based check.

Also consolidate the repeated EXISTS/no-DISTINCT/O(page) rationale that the
prior commit spread across five sites down to a single authoritative comment on
ArtistLibraryFilter, with the call sites referencing it.

* perf(subsonic): drop redundant library_artist covering index

The migration added an index on library_artist(artist_id, library_id) on the
theory that the restricted-subset artist-search EXISTS needed it to seek by
artist_id. Benchmarking on a 405k-artist / 5-library dataset showed no benefit:
the EXISTS subquery constrains both columns (artist_id = and library_id IN), so
SQLite already resolves it as a covering-index seek on the existing
(library_id, artist_id) UNIQUE autoindex. With the new index present the planner
still picks the autoindex and ignores it.

Drop the migration and correct the comment. Removing ~11MB of dead index plus
its write-amplification on every library_artist insert/delete, for zero query
gain.

* fix(scanner): mark artists missing when they lose their last library

Artist search Phase 1 filters on artist.missing and Phase 2 inner-joins
library_artist, so a non-missing artist with no library_artist row (an orphan)
takes a pagination slot in Phase 1 and then vanishes in Phase 2, shortening the
page and shifting deep offsets. The admin/headless search fast-path walks artist
unfiltered, so it is fully exposed to this.

Two paths created such orphans without updating artist.missing:
- RefreshStats deletes library_artist rows whose stats are '{}' (artist lost all
  content in a library) after every scan. This is the common source.
- Library deletion cascades away the library's library_artist rows.

Mark newly-orphaned artists missing at both sources, so the shared
'missing = false' search filter excludes them immediately instead of waiting for
a later scan. In RefreshStats the update only runs when the cleanup actually
removed rows (the only way a new orphan can appear), so steady-state scans pay
nothing; measured ~160ms on 300k artists only when orphans can exist.

* refactor(subsonic): address review feedback on artist search filter

Code-review follow-ups to the artist search pagination change:
- ArtistLibraryFilter: short-circuit to a constant-false predicate when no
  library IDs are given, avoiding a degenerate empty IN () subquery.
- ArtistLibraryFilter: add an inner LIMIT 1 to the correlated EXISTS so SQLite
  cannot flatten it into a fan-out join (an artist in multiple of the user's
  libraries would otherwise yield duplicate rowids and corrupt pagination).
- narrowsArtistLibraries: compare accessible-vs-requested as a set lookup
  instead of slices.Contains in a loop.
- searchConfig.LibraryFilter: document that a join-free filter is now a
  correctness requirement (DISTINCT was removed), not just a performance one.

* docs: trim verbose comments in artist search/orphan code

Condense the over-explained comments added in this PR to the essential 'why',
removing repeated cross-references and restatements of the adjacent code.

* fix(scanner): heal pre-existing orphan artists on full refresh

The orphan-marking added to RefreshStats only ran when its empty-stats cleanup
deleted rows, so it reconciled newly-created orphans but not ones already left
in the database by older versions (whose library_artist row was deleted before
this fix existed). Such legacy orphans would surface in the admin/headless search
fast-path as short/gappy pages.

Also run the orphan-marking on a full refresh (allArtists), so a full scan — which
upgrades commonly trigger and users can run manually — reconciles the backlog. No
migration needed; the runtime fixes prevent recurrence.

* perf(subsonic): extend artist search fast-path to all-library users

applyLibraryFilterToSearchQuery only skipped the library filter for admin and
headless processes. A regular (non-admin) user who can access every library has
the same result set as an admin, but was still given the EXISTS filter — an
O(offset) cost for a predicate that matches every non-missing artist anyway.

Skip the filter for them too, using a cheap library CountAll() (a count over the
tiny library table) compared against the user's library count. On any error it
falls back to the filtered path, which is correct, just slower.

* fix(scanner): log error as trailing arg, not explicit error key

Signed-off-by: Deluan <deluan@navidrome.org>

* test(scanner): e2e guard for orphan artists under PurgeMissing

Adds an end-to-end scanner test for the orphan-artist invariant fixed in
RefreshStats: with Scanner.PurgeMissing enabled, removing all of an artist's
files hard-deletes them, cascades away their media_file_artists rows, and
RefreshStats then drops the artist's emptied library_artist row. The test
asserts no non-missing artist is left without a library_artist row. Verified it
fails without the RefreshStats orphan-marking and passes with it.

* test(scanner): assert the orphaned artist is marked missing

The orphan e2e test only checked the aggregate no-orphan invariant
(orphanCount == 0), which a fully-deleted artist or an un-cleaned row would also
satisfy — so it could pass without exercising the fix. Assert Pink Floyd's row
specifically: missing=false before, missing=true after, and absent from the
non-missing results. Verified it fails without the RefreshStats orphan-marking.

* test(scanner): drop misleading non-missing-list assertion for orphan

GetAll has no default missing filter, but selectArtist inner-joins library_artist,
so an orphaned artist (no junction row) is excluded from the results whether or
not it is marked missing. The Not(ContainElement) check therefore passed for the
wrong reason. The direct floydMissing() == 1 query is the assertion that actually
validates the missing flag; keep that plus the orphan-count invariant and an
over-marking guard on The Beatles.

* test(scanner): document why orphan check reads the artist row directly

Clarify that GetAll cannot observe the orphan: selectArtist inner-joins
library_artist, so an artist with no junction row is excluded from results
whether or not it is marked missing. Asserting on GetAll would pass even without
the fix, so the test reads the artist row directly to check the missing flag.

* test(scanner): return descriptive artist state for clearer failures

floydState returns PRESENT/MISSING/NOT_FOUND instead of 0/1/-1, so a failure
reads '<string>: PRESENT to equal MISSING' rather than '0 to equal 1'.

* refactor(subsonic): keep artist library scoping in the repository

The search endpoint built a persistence-layer EXISTS predicate
(persistence.ArtistLibraryFilter) and injected it into artistOpts.Filters — the
only place the subsonic package reached into persistence, leaking a storage
detail up two layers.

Pass the same Eq{"library_id": ids} filter used for albums and songs, and let
the artist repository translate it to the join-free library_artist predicate
(scopeSearchToLibraries), where the junction knowledge belongs. The subset-vs-
fast-path decision moves there too, so narrowsArtistLibraries and the persistence
import are gone from the subsonic layer. Behavior is unchanged; coverage for the
translation moves to artist_repository_test.

* refactor(persistence): extract canonical markOrphansMissing helper

The 'mark non-missing artists with no library_artist row as missing' invariant
was hand-written as SQL in two places (RefreshStats and libraryRepository.Delete),
in two slightly different dialects (not exists vs id not in). Extract a single
artistRepository.markOrphansMissing method next to markMissing and call it from
both sites, so the invariant has one definition.

* fix(persistence): apply scoped library filter in both search phases

Two bugs from moving the artist library-scoping into the repository:

- Search() scoped opts.Filters for Phase 1 but still passed the original
  (unscoped) options to selectArtist, so Phase 2 re-applied the raw
  Eq{library_id} against the wrong columns and a restricted user's search
  returned nothing. Pass the scoped opts to both phases.

- scopeSearchToLibraries dropped the filter unconditionally for admins, so an
  admin explicitly narrowing via musicFolderId (e.g. search3?musicFolderId=2)
  leaked content from other libraries. Compare the request against the user's
  visible library set (all libraries for admin/headless), narrowing whenever it
  is a strict subset.

Both regressions were caught by the server/e2e multi-library suite.

* fix(core): delete library and reconcile orphans in one transaction

libraryRepository.Delete runs the FK-cascade delete and the orphaned-artist
reconciliation (markOrphansMissing) as two writes on r.db. Called directly they
autocommit separately, so an interruption between them could leave non-missing
artists with no library_artist row — the orphan state the artist search
fast-path forbids. Wrap the deletion in ds.WithTx at the core wrapper so both
writes commit atomically; the watcher/scanner/broker side-effects stay
post-commit.

* refactor(persistence): unify artist search library scoping into one filter

Phase 1 previously applied two overlapping library predicates: cfg.LibraryFilter
(scoped to the user's libraries) AND options.Filters (the requested subset),
producing two correlated EXISTS subqueries per rowid even though the request is
always a subset of the user's libraries. And the 'does this user see everything'
decision was implemented twice (userHasAllLibraries via CountAll vs
scopeSearchToLibraries via set-membership), with applyLibraryFilterToSearchQuery
as a third scoping path.

Resolve the effective library scope once in Search() via searchScope (intersect
the requested set with the user's visible libraries; nil = fast-path), clear
opts.Filters, and realize that single scope as the only Phase-1 LibraryFilter.
The visibility logic is now one pipeline: requestedLibraryIDs + visibleLibraryIDs
+ userSeesAllLibraries. Behavior unchanged; one EXISTS instead of two on the hot
path, one source of truth for library visibility.

* fix(persistence): harden artist search against malformed library_id filter

Search consumed only an Eq{"library_id": []int} filter; an Eq whose library_id
value wasn't []int slipped through unconsumed and would reach Phase 1's bare
artist table (no library_id column) → SQL error. Recognize any Eq carrying a
library_id key (isLibraryIDFilter) and always consume it, falling back to the
user's visible scope for a malformed value. Non-library filters are still left
in place for doSearch.

* refactor(persistence): trim redundant comments and unexport artist library filter

The artist-search-pagination work left dense explanatory comments, with the
join-free / LIMIT-1 anti-flatten rationale and the orphan-artist mechanics each
restated in several places. Consolidate each rationale into one canonical home
(artistLibraryFilter for the EXISTS/LIMIT-1 trick, markOrphansMissing for the
orphan lifecycle) and have the other sites reference it instead of repeating it.

Also unexport ArtistLibraryFilter to artistLibraryFilter: its only caller is
searchCfg in the same package and no test references it, so it never needed to
be part of the package's exported surface.

Comments only plus the rename; no behavior change.

* refactor: add slice.ToSet and use it for the artist search subset check

searchScope's subset test compared the requested libraries against the visible
set with a nested slices.Contains, which is O(visible * requested). On an instance
with many libraries (e.g. 100 libraries, a user granted 99) and an explicit
musicFolderId request, that is ~9.8k comparisons; with a set it is ~200.

Add a small reusable slice.ToSet helper (a slice -> map[T]struct{} set, collapsing
duplicates) and use it to make the membership lookups O(1), restoring O(n+m) without
the throwaway struct{}{} literal that an inline ToMap would need. No behavior change.

* refactor(artist): move artistLibraryFilter to artist_repository

Signed-off-by: Deluan <deluan@navidrome.org>

---------

Signed-off-by: Deluan <deluan@navidrome.org>
2026-06-16 21:47:15 -04:00
Deluan Quintão
08a027dbcc
fix(transcoding): honor player forced format on the WebUI transcode flow (#5613)
* feat(stream): add ClientInfo.ForceFormat for browser-aware forced format

Restricts the client to a forced transcoding format and suppresses direct
play, but only when the client declares it supports that format. Part of #5583.

* fix(transcoding): honor player forced format on getTranscodeDecision

When the WebUI player has a forced transcoding format configured and the
browser declares it can play that format, transcode to it (suppressing
direct play). Fall back to normal negotiation with a warning when the
format is unsupported. The MaxBitRate cap still applies on top. Fixes #5583.

* test(e2e): cover player forced format on getTranscodeDecision

Forced format honored when the client supports it, falls back to negotiation
otherwise, and the MaxBitRate cap still applies on top. Part of #5583.

* feat(ui): remove obsolete 'format ignored' helper text on player form

The web player now honors the forced transcoding format, so the caveat added
in #5611 no longer applies. Reverts the Transcoding field to a plain selector.
Part of #5583.
2026-06-14 20:52:19 -04:00
Deluan Quintão
c4c70519b5
fix(transcoding): enforce server-side player MaxBitRate on /rest/stream (#5611)
* fix(transcoding): enforce player MaxBitRate on getTranscodeDecision

The Web UI streams via getTranscodeDecision, which (since #5473) ignored
the server-side player config. Apply the player's MaxBitRate as a bitrate
ceiling on the client's declared limits before MakeDecision, restoring
per-player bitrate enforcement without reintroducing the forced-format
override. Fixes #5583.

* test(e2e): assert player MaxBitRate is enforced on getTranscodeDecision

Invert the assertions added in #5473 that expected the player cap to be
ignored; getTranscodeDecision now enforces it (issue #5583).

* feat(ui): clarify web player ignores forced transcoding format

Add helper text to the Transcoding field on the player edit form when the
player is the NavidromeUI web client, since it enforces only the Max. Bit
Rate, not the forced format. Part of issue #5583.

* refactor(stream): extract ClientInfo.CapBitrate, share across transcode paths

Move the player MaxBitRate ceiling logic into a canonical ClientInfo.CapBitrate
method in core/stream, used by both getTranscodeDecision and the legacy
ResolveRequest path. Removes handler-layer duplication and corrects a
misleading comment that wrongly implied the legacy single-field cap was buggy.

* fix(transcoding): downsample on legacy /stream when only player MaxBitRate is set

A bare /stream or /download request from a player configured with a
server-side MaxBitRate (but no forced format) was served raw, ignoring the
cap. buildLegacyClientInfo now triggers DefaultDownsamplingFormat when the
player MaxBitRate alone is below the source bitrate, matching the
already-correct forced-format and request-bitrate paths. Part of #5583.

* fix(ui): add Brazilian Portuguese translation for player transcoding helper text

Translates the new resources.player.helperTexts.transcodingId key added for
the web player transcoding-format clarification. Part of #5583.

* fix(ui): restore Transcoding field styling and render helper text

The TranscodingInput wrapper swallowed the variant SimpleForm injects into
its direct children (field lost its outlined box) and put helperText on the
ReferenceInput, which does not forward it to the input. Spread the form props
onto ReferenceInput and move helperText to the SelectInput child so both the
outlined styling and the helper text render. Part of #5583.

* fix(i18n): update Brazilian Portuguese translation for album artist field

Signed-off-by: Deluan <deluan@navidrome.org>

* fix(ui): clean up comments in PlayerEdit component

Signed-off-by: Deluan <deluan@navidrome.org>

* test(ui): mock useTranslate in PlayerEdit test for determinism

Avoid depending on ra-core's out-of-provider translation behavior, which can
vary by version. Part of #5583.

---------

Signed-off-by: Deluan <deluan@navidrome.org>
2026-06-14 16:52:01 -04:00
Deluan Quintão
c466f6b612
fix(artwork): prevent WebP segfault on 32-bit and disable WebP-by-default in Docker (#5606)
* fix(artwork): avoid WebP segfault on 32-bit ARM

On 32-bit ARM, the gen2brain/webp native libwebp path uses ebitengine/purego
reverse callbacks, which purego does not support on that architecture. Selecting
it crashes the process with a SIGSEGV when encoding or decoding WebP cover art,
taking down the whole server on the first web UI artwork request (issue #5597).

Force the safe WASM path on armv7/v6 in two layers: build the Docker arm binary
with the gen2brain/webp "nodynamic" tag so purego is never linked, and add a
runtime GOARCH guard in the init hook so source builds on 32-bit ARM are also
protected. arm64 keeps the native libwebp path.

* fix(artwork): also disable native WebP on 32-bit x86

purego's callback implementation is built with the constraint !386 && !arm,
so 32-bit x86 (386) crashes with the same SIGSEGV as 32-bit ARM when the native
libwebp path is used. Navidrome ships linux/386 and windows/386 builds, so guard
386 alongside arm: extend the runtime GOARCH check and the Docker nodynamic build
tag to cover both. 64-bit arches keep the native libwebp path.

* fix(artwork): rely on nodynamic build tag, drop ineffective runtime guard

The previous runtime GOARCH guard did not actually prevent the crash:
gen2brain/webp selects the native (purego) vs WASM backend in its own package
init() and registers the purego write callback at import time, before any
Navidrome hook runs. webp.Dynamic() is only a status getter, and Decode/Encode
branch on the library's unexported flag, so the guard merely skipped a log line
while the native path stayed active.

The effective fix is the nodynamic build tag (applied for 32-bit ARM and x86 in
the Dockerfile), which compiles gen2brain/webp WASM-only so purego is never
linked. Drop the misleading guard and document that source builds on 32-bit
architectures must be built with -tags nodynamic.

* fix(artwork): don't enable WebP encoding by default in Docker

The Docker image set ND_ENABLEWEBPENCODING=true, which (a) forced cover-art
thumbnails through WebP for every install and (b) overrode any
EnableWebPEncoding=false set in the user's navidrome.toml, since env vars take
precedence over the config file in Viper.

On 32-bit platforms the only available WebP backend is the WASM encoder, which
is slow on the underpowered hardware those builds typically run on, so enabling
it by default is the wrong tradeoff there. Remove the env default and leave
EnableWebPEncoding off unless the user opts in. Combined with the nodynamic
build tag, 32-bit images neither crash nor pay the WASM cost out of the box.

A smarter automatic policy (use WebP only when native libwebp is available) can
be revisited separately.
2026-06-13 13:58:26 -04:00
Deluan Quintão
af78bdeb3a
fix(artwork): never serve artist folder images as album art (#5596)
* test(artwork): add failing e2e tests for artist image leaking as album art

Reproduces a v0.62.0 regression (#5451/#5457): the album cover-art
parent-folder fallback can include the artist folder, serving the artist
thumbnail (e.g. Artist/folder.jpg) as album art for any album without
image files in its own folder(s). Covers three scenarios: a plain
Artist/Album layout with no album images, a single-disc album spread
across sibling folders under the artist folder, and a spread album whose
own front.jpg is shadowed by the artist's cover.jpg via CoverArtPriority
order. Also adds an albumByName test helper for multi-album layouts.

The tests are expected to fail until the parent-folder inclusion is
gated by a structural check (skip the common parent when audio from
other albums lives under it).

* fix(artwork): never serve artist folder images as album art

The album cover-art parent-folder fallback (introduced in #5451/#5457)
could include the artist folder as a source of album images, serving the
artist thumbnail (e.g. Artist/folder.jpg) as cover art for any album
without image files in its own folder(s). This affected both plain
Artist/Album layouts and single-disc albums spread across sibling
folders under the artist folder.

Gate the common-parent inclusion with a structural check: the parent
only qualifies as an album root when no audio belonging to other albums
lives in it or anywhere beneath it. An artist folder contains other
albums' tracks, while an album root above disc subfolders contains only
this album's, so the check works for any disc folder naming scheme and
never affects the multi-disc fixes from #5376/#5456. A single-album
artist with no images anywhere remains structurally indistinguishable
from an album root and is a known residual case.

* refactor(artwork): move album-root audio check into folder repository

Replace the raw subtree SQL (LIKE/ESCAPE expression and wildcard
escaping) that lived in core/artwork with an explicit
FolderRepository.HasAudioOutsideFolders method, implemented in the
persistence layer next to the existing folder-subtree query pattern.
This also removes the test mock's brittle dispatch that sniffed the
generated SQL to recognize the query; the fake now overrides the new
method directly.

Extract the whole parent-folder resolution from loadAlbumFoldersPaths
into an albumRootParent helper, flattening four levels of nesting back
into a linear flow. Behavior is unchanged; the unit test for a parent
containing audio moved to the persistence suite, with added coverage
for subtree boundaries, missing folders, and LIKE-wildcard escaping in
folder paths.

* refactor(persistence): use exists helper in HasAudioOutsideFolders

Replace the hand-rolled count(*) query with the repository's canonical
exists helper, as suggested in PR review.
2026-06-13 13:29:29 -04:00
Deluan Quintão
da56df3160
feat(smartplaylist): extend isMissing/isPresent to bpm, bitDepth and many text fields (#5603)
* feat(smartplaylist): support isMissing/isPresent on mbz_* and lyrics fields

Mark the six mbz_* MusicBrainz ID columns and the lyrics column as Nullable
in the criteria field map, then extend missingExpr to handle string columns
where absence is encoded as NULL or empty string (plus '[]' for lyrics). The
Numeric/Boolean path (ReplayGain) is preserved via an explicit type check.

* refactor(model): make MediaFile BPM and BitDepth nullable pointers

Convert BPM and BitDepth fields in model.MediaFile from int to *int so that
'tag absent' is distinguishable from zero. The metadata mapper now uses
NullableFloat for BPM (nil when absent or zero/unparseable) and only sets
BitDepth when the audio property is non-zero (lossy codecs report 0).

All read sites use gg.V() for zero-fallback deref so Subsonic API output and
transcoding behaviour are byte-identical to before. The persistence layer
bridges the existing NOT NULL DB columns by coercing nil to 0 on write and 0
back to nil on read in PostMapArgs/PostScan; a later migration task will drop
those constraints.

Hash upgrade safety is verified by a new MediaFile.Hash describe block: nil
*int hashes identically to the old int(0) default via ZeroNil+IgnoreZeroValue,
so no files will be spuriously re-imported after this change.

Extra files touched beyond the plan's list: core/stream/legacy_client_test.go
(BitDepth in model.MediaFile literals), persistence/mediafile_repository.go
(NOT NULL bridge).

* test(model): pin pre-conversion golden hashes for BPM/BitDepth

* feat(smartplaylist): support isMissing/isPresent on bpm and bitDepth

* feat(db): make bpm and bit_depth columns nullable, backfill 0 to NULL

Drop the NOT NULL constraint on media_file.bpm and bit_depth via a
lossless migration that converts legacy 0-means-absent values to real
NULL. Remove the temporary shim in PostScan/PostMapArgs that was bridging
the old NOT NULL columns to the *int model fields. Add round-trip
persistence tests asserting NULL storage for nil pointers and correct
value round-trip for non-nil pointers.

* test(e2e): verify isMissing/isPresent partition for nullable fields

Add DescribeTable covering bpm, bitdepth, lyrics, and mbz_recording_id:
for each field, isMissing + isPresent song counts must equal the total
library count, proving the nullable-column SQL is exhaustive and correct.

* test(e2e): seed bpm tag so isMissing/isPresent partition is non-trivial

* fix(model): omit bitDepth from JSON when absent instead of emitting null

* feat(smartplaylist): support isMissing/isPresent on more string fields

Enable isMissing/isPresent operators for album, comment, catalognumber,
discsubtitle, albumcomment, sorttitle, sortalbum, sortartist,
sortalbumartist, and explicitstatus by marking them Nullable in fieldMap.

* refactor(smartplaylist): unify missingExpr column logic into one flow

Collapse the numeric/string fork in missingExpr into a single
empties-driven loop (numeric/boolean fields simply have no empties),
and replace the duplicated IsTag/IsRole guard with a three-way switch
that expresses the dispatch model once. No SQL semantics change for
string fields; numeric/boolean fields now emit a single-element Or/And
which squirrel parenthesizes (e.g. `(col IS NULL)` instead of bare
`col IS NULL`) — update the affected test expectations accordingly.
2026-06-13 13:15:20 -04:00
Deluan Quintão
3b958dd6a7
refactor(stream): remove dead type branches from getIntClaim (#5594)
The jwx library always deserializes numeric claims from a parsed token as
float64, so the int and int64 branches in getIntClaim could never succeed
and were dead code. Keep only the float64 path, which is the one actually
exercised by the token round-trip, and update the comment to document the
library behavior.
2026-06-10 23:15:58 -04:00
Deluan Quintão
bc107d1cee
fix(scrobbler): proxy NowPlaying even when ignoreScrobble is set (#5559)
* fix(scrobbler): proxy NowPlaying even when ignoreScrobble is set

When a client reports playback with ignoreScrobble=true, the reportPlayback
handler suppressed both the scrobble submission and the NowPlaying update sent
to external agents (Last.fm, ListenBrainz, plugins). These are independent
concerns: ignoring the scrobble submission should not stop Navidrome from
telling external services what is currently playing.

The !params.IgnoreScrobble guard now applies only to the scrobble submission
and play-count path; the NowPlaying dispatch is gated solely by the player's
ScrobbleEnabled flag. This mirrors the legacy scrobble endpoint, where
submission=false has always still set NowPlaying.

* test(scrobbler): assert no scrobble dispatch when ignoreScrobble=true

Address PR review feedback: explicitly verify that ignoreScrobble=true
suppresses the scrobble submission (not just the play count) while NowPlaying
is still dispatched, so the flag cannot regress into ignoring nothing. Also
expand the NowPlaying gating comment to spell out the IgnoreScrobble vs
ScrobbleEnabled rules and identify the external agents involved.
2026-06-03 20:03:08 -04:00
Deluan
2a43c4683e chore: go fix
Signed-off-by: Deluan <deluan@navidrome.org>
2026-05-28 22:13:05 -03:00
Deluan
833c50adc7 test(stream): fix data race in MediaStreamer transcoding cap tests
The three It blocks that build a tight-cap streamer each spawned a fresh
transcoding cache without waiting for its background initialization. The
init goroutine reads conf.Server.CacheFolder, which races against
SnapshotConfig's pointer-swap restore (Server = &restored) fired by
DeferCleanup at the end of the spec. CI tripped the race under
-shuffle=on -race; locally it reproduced about 10% of the time.

Wait for tightCache.Available() before constructing the streamer, mirroring
the outer BeforeEach. For the slot-saturation spec, swap in a blocking
io.Pipe-backed mock ffmpeg so the cache's background copyAndClose can't
drain the source and release the slot — the previous behavior happened to
work only because the cache wasn't yet available and the no-cache path was
exercised.
2026-05-28 00:07:49 -03:00