electrum: check in db if rescan required

src/bitcoin/electrum/mod.rs

@@ -55,12 +55,13 @@ impl Electrum {
     pub fn new(
         client: client::Client,
         bdk_wallet: wallet::BdkWallet,
+        full_scan: bool,
     ) -> Result<Self, ElectrumError> {
         Ok(Self {
             client,
             bdk_wallet,
             sync_count: 0,
-            full_scan: false, // by default, only perform full scan if wallet's local chain has height 0
+            full_scan,
         })
     }
 

src/lib.rs

@@ -361,7 +361,8 @@ fn setup_electrum(
         receive_index,
         change_index,
     );
-    let electrum = Electrum::new(client, bdk_wallet).map_err(StartupError::Electrum)?;
+    let full_scan = db_conn.rescan_timestamp().is_some();
+    let electrum = Electrum::new(client, bdk_wallet, full_scan).map_err(StartupError::Electrum)?;
     electrum
         .sanity_checks(&genesis_hash)
         .map_err(StartupError::Electrum)?;