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* 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 * initial api, some testing * add tests, add count retrieval * add docs, test for rejected user * add permission validation for scrobble retriever * chore(plugins): fix typos in scrobble retriever Rename newScrobbleRetreverService, and fix FromTImestamp/nonero in the ScrobbleRetriever doc comments, which generate into the Go and Rust PDKs. Also corrects two mislabelled test entries. * fix(plugins): make scrobble pagination order deterministic Sorting only by submission_time left the order of equal timestamps up to the query planner, but the cursor skips ties by offset, so an unstable order can repeat or drop scrobbles between pages. Break ties on scrobbles.id, which the existing scrobbles_user_time index already yields for free. Descending is now honoured for every combination of From/To rather than only when both or neither is set. This changes the default for a lone ToTimestamp from newest-first to oldest-first. * refactor(plugins): return the next page's options from GetScrobbles Paging previously meant reading NextTimestamp and Cursor off the response and deciding where each belonged: NextTimestamp into FromTimestamp when ascending or ToTimestamp when descending, and Cursor copied every time, including when 0. Both are silent data-loss bugs when a plugin gets them wrong. GetScrobbles now returns the options for the following page, or nil when the range is exhausted, so a plugin passes the value straight back and repeats. ScrobbleCursor and ScrobbleList are gone; the query itself is unchanged. * docs(plugins): warn against setting ScrobbleOptions.Offset manually The all-ties carry rule assumes Offset counts already-returned rows at the boundary timestamp, which only holds for the options GetScrobbles returns. A hand-built From+Offset combination can silently skip scrobbles, so document the field as managed pagination state instead of a generic skip. * docs(plugins): document the ScrobbleRetriever host service in the README Covers the manifest permissions (including the users requirement), the four host functions, the options/ref field tables, and the pagination loop with its two gotchas: the host-managed offset and the adjusted range on the returned next options. * chore(plugins): regenerate scrobble retriever stub with nil-safe accessors --------- Co-authored-by: Deluan Quintão <deluan@navidrome.org>
231 lines
7.4 KiB
Go
231 lines
7.4 KiB
Go
// Code generated by ndpgen. DO NOT EDIT.
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package host
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import (
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"context"
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"encoding/json"
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extism "github.com/extism/go-sdk"
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)
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// ScrobbleRetrieverGetFirstTimestampRequest is the request type for ScrobbleRetriever.GetFirstTimestamp.
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type ScrobbleRetrieverGetFirstTimestampRequest struct {
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Username string `json:"username"`
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}
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// ScrobbleRetrieverGetFirstTimestampResponse is the response type for ScrobbleRetriever.GetFirstTimestamp.
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type ScrobbleRetrieverGetFirstTimestampResponse struct {
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Result *int64 `json:"result,omitempty"`
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Error string `json:"error,omitempty"`
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}
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// ScrobbleRetrieverGetLastTimestampRequest is the request type for ScrobbleRetriever.GetLastTimestamp.
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type ScrobbleRetrieverGetLastTimestampRequest struct {
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Username string `json:"username"`
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}
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// ScrobbleRetrieverGetLastTimestampResponse is the response type for ScrobbleRetriever.GetLastTimestamp.
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type ScrobbleRetrieverGetLastTimestampResponse struct {
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Result *int64 `json:"result,omitempty"`
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Error string `json:"error,omitempty"`
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}
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// ScrobbleRetrieverGetScrobblesRequest is the request type for ScrobbleRetriever.GetScrobbles.
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type ScrobbleRetrieverGetScrobblesRequest struct {
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Username string `json:"username"`
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Options ScrobbleOptions `json:"options"`
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}
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// ScrobbleRetrieverGetScrobblesResponse is the response type for ScrobbleRetriever.GetScrobbles.
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type ScrobbleRetrieverGetScrobblesResponse struct {
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Scrobbles []ScrobbleRef `json:"scrobbles,omitempty"`
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Next *ScrobbleOptions `json:"next,omitempty"`
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Error string `json:"error,omitempty"`
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}
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// ScrobbleRetrieverGetScrobbleCountRequest is the request type for ScrobbleRetriever.GetScrobbleCount.
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type ScrobbleRetrieverGetScrobbleCountRequest struct {
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Username string `json:"username"`
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Options ScrobbleCountOptions `json:"options"`
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}
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// ScrobbleRetrieverGetScrobbleCountResponse is the response type for ScrobbleRetriever.GetScrobbleCount.
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type ScrobbleRetrieverGetScrobbleCountResponse struct {
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Result int64 `json:"result,omitempty"`
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Error string `json:"error,omitempty"`
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}
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// RegisterScrobbleRetrieverHostFunctions registers ScrobbleRetriever service host functions.
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// The returned host functions should be added to the plugin's configuration.
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func RegisterScrobbleRetrieverHostFunctions(service ScrobbleRetrieverService) []extism.HostFunction {
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return []extism.HostFunction{
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newScrobbleRetrieverGetFirstTimestampHostFunction(service),
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newScrobbleRetrieverGetLastTimestampHostFunction(service),
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newScrobbleRetrieverGetScrobblesHostFunction(service),
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newScrobbleRetrieverGetScrobbleCountHostFunction(service),
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}
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}
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func newScrobbleRetrieverGetFirstTimestampHostFunction(service ScrobbleRetrieverService) extism.HostFunction {
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return extism.NewHostFunctionWithStack(
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"scrobbleretriever_getfirsttimestamp",
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func(ctx context.Context, p *extism.CurrentPlugin, stack []uint64) {
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// Read JSON request from plugin memory
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reqBytes, err := p.ReadBytes(stack[0])
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if err != nil {
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scrobbleretrieverWriteError(p, stack, err)
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return
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}
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var req ScrobbleRetrieverGetFirstTimestampRequest
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if err := json.Unmarshal(reqBytes, &req); err != nil {
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scrobbleretrieverWriteError(p, stack, err)
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return
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}
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// Call the service method
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result, svcErr := service.GetFirstTimestamp(ctx, req.Username)
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if svcErr != nil {
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scrobbleretrieverWriteError(p, stack, svcErr)
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return
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}
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// Write JSON response to plugin memory
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resp := ScrobbleRetrieverGetFirstTimestampResponse{
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Result: result,
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}
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scrobbleretrieverWriteResponse(p, stack, resp)
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},
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[]extism.ValueType{extism.ValueTypePTR},
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[]extism.ValueType{extism.ValueTypePTR},
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)
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}
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func newScrobbleRetrieverGetLastTimestampHostFunction(service ScrobbleRetrieverService) extism.HostFunction {
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return extism.NewHostFunctionWithStack(
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"scrobbleretriever_getlasttimestamp",
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func(ctx context.Context, p *extism.CurrentPlugin, stack []uint64) {
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// Read JSON request from plugin memory
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reqBytes, err := p.ReadBytes(stack[0])
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if err != nil {
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scrobbleretrieverWriteError(p, stack, err)
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return
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}
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var req ScrobbleRetrieverGetLastTimestampRequest
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if err := json.Unmarshal(reqBytes, &req); err != nil {
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scrobbleretrieverWriteError(p, stack, err)
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return
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}
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// Call the service method
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result, svcErr := service.GetLastTimestamp(ctx, req.Username)
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if svcErr != nil {
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scrobbleretrieverWriteError(p, stack, svcErr)
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return
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}
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// Write JSON response to plugin memory
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resp := ScrobbleRetrieverGetLastTimestampResponse{
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Result: result,
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}
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scrobbleretrieverWriteResponse(p, stack, resp)
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},
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[]extism.ValueType{extism.ValueTypePTR},
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[]extism.ValueType{extism.ValueTypePTR},
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)
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}
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func newScrobbleRetrieverGetScrobblesHostFunction(service ScrobbleRetrieverService) extism.HostFunction {
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return extism.NewHostFunctionWithStack(
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"scrobbleretriever_getscrobbles",
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func(ctx context.Context, p *extism.CurrentPlugin, stack []uint64) {
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// Read JSON request from plugin memory
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reqBytes, err := p.ReadBytes(stack[0])
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if err != nil {
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scrobbleretrieverWriteError(p, stack, err)
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return
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}
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var req ScrobbleRetrieverGetScrobblesRequest
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if err := json.Unmarshal(reqBytes, &req); err != nil {
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scrobbleretrieverWriteError(p, stack, err)
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return
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}
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// Call the service method
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scrobbles, next, svcErr := service.GetScrobbles(ctx, req.Username, req.Options)
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if svcErr != nil {
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scrobbleretrieverWriteError(p, stack, svcErr)
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return
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}
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// Write JSON response to plugin memory
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resp := ScrobbleRetrieverGetScrobblesResponse{
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Scrobbles: scrobbles,
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Next: next,
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}
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scrobbleretrieverWriteResponse(p, stack, resp)
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},
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[]extism.ValueType{extism.ValueTypePTR},
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[]extism.ValueType{extism.ValueTypePTR},
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)
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}
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func newScrobbleRetrieverGetScrobbleCountHostFunction(service ScrobbleRetrieverService) extism.HostFunction {
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return extism.NewHostFunctionWithStack(
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"scrobbleretriever_getscrobblecount",
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func(ctx context.Context, p *extism.CurrentPlugin, stack []uint64) {
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// Read JSON request from plugin memory
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reqBytes, err := p.ReadBytes(stack[0])
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if err != nil {
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scrobbleretrieverWriteError(p, stack, err)
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return
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}
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var req ScrobbleRetrieverGetScrobbleCountRequest
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if err := json.Unmarshal(reqBytes, &req); err != nil {
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scrobbleretrieverWriteError(p, stack, err)
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return
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}
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// Call the service method
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result, svcErr := service.GetScrobbleCount(ctx, req.Username, req.Options)
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if svcErr != nil {
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scrobbleretrieverWriteError(p, stack, svcErr)
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return
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}
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// Write JSON response to plugin memory
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resp := ScrobbleRetrieverGetScrobbleCountResponse{
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Result: result,
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}
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scrobbleretrieverWriteResponse(p, stack, resp)
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},
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[]extism.ValueType{extism.ValueTypePTR},
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[]extism.ValueType{extism.ValueTypePTR},
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)
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}
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// scrobbleretrieverWriteResponse writes a JSON response to plugin memory.
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func scrobbleretrieverWriteResponse(p *extism.CurrentPlugin, stack []uint64, resp any) {
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respBytes, err := json.Marshal(resp)
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if err != nil {
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scrobbleretrieverWriteError(p, stack, err)
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return
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}
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respPtr, err := p.WriteBytes(respBytes)
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if err != nil {
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stack[0] = 0
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return
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}
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stack[0] = respPtr
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}
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// scrobbleretrieverWriteError writes an error response to plugin memory.
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func scrobbleretrieverWriteError(p *extism.CurrentPlugin, stack []uint64, err error) {
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errResp := struct {
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Error string `json:"error"`
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}{Error: err.Error()}
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respBytes, _ := json.Marshal(errResp)
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respPtr, _ := p.WriteBytes(respBytes)
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stack[0] = respPtr
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}
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