fix: delete unavailable files during xml sync

addresses #869chrmp4

src/Command/BpnXmlSyncCommand.php

@@ -106,7 +106,7 @@ class BpnXmlSyncCommand extends Command
         $io->section('Syncing files');
 
         try {
-            $syncedCount = $this->syncFiles($io);
+            $syncResult = $this->syncFiles($io);
         } catch (FilesystemException $e) {
             $io->error(sprintf('Sync failed: %s', $e->getMessage()));
             $this->logger->error('XML sync failed during file transfer', ['exception' => $e]);
@@ -117,9 +117,14 @@ class BpnXmlSyncCommand extends Command
         $this->invalidateCaches();
         $io->text(sprintf('Invalidated %d cache keys', count(self::CACHE_KEYS_TO_INVALIDATE)));
 
-        $io->success(sprintf('Synced %d files', $syncedCount));
+        $io->success(sprintf(
+            'Sync complete: %d files updated, %d files deleted',
+            $syncResult['updated'],
+            $syncResult['deleted']
+        ));
         $this->logger->info('XML sync completed', [
-            'files_synced' => $syncedCount,
+            'files_updated' => $syncResult['updated'],
+            'files_deleted' => $syncResult['deleted'],
             'remote_timestamp' => $remoteInfo->lastTransfer->format('c'),
         ]);
 
@@ -159,17 +164,25 @@ class BpnXmlSyncCommand extends Command
     /**
      * @throws FilesystemException
      */
-    private function syncFiles(SymfonyStyle $io): int
+    private function syncFiles(SymfonyStyle $io): array
     {
-        $files = $this->xmlSource
+        $remoteFiles = $this->xmlSource
             ->listContents('.')
             ->filter(fn (StorageAttributes $attributes) => $attributes->isFile())
             ->map(fn (StorageAttributes $attributes) => $attributes->path())
             ->toArray();
 
-        $io->progressStart(count($files));
+        $localFiles = $this->xmlExport
+            ->listContents('.')
+            ->filter(fn (StorageAttributes $attributes) => $attributes->isFile())
+            ->map(fn (StorageAttributes $attributes) => $attributes->path())
+            ->toArray();
 
-        foreach ($files as $path) {
+        $filesToDelete = array_diff($localFiles, $remoteFiles);
+
+        $io->progressStart(count($remoteFiles));
+
+        foreach ($remoteFiles as $path) {
             $content = $this->xmlSource->read($path);
             $this->xmlExport->write($path, $content);
             $io->progressAdvance();
@@ -177,7 +190,14 @@ class BpnXmlSyncCommand extends Command
 
         $io->progressFinish();
 
-        return count($files);
+        foreach ($filesToDelete as $path) {
+            $this->xmlExport->delete($path);
+        }
+
+        return [
+            'updated' => count($remoteFiles),
+            'deleted' => count($filesToDelete),
+        ];
     }
 
     private function invalidateCaches(): void