Fix watcher sync loop when auto-watch is enabled

app/utils/watcher.py

@@ -21,6 +21,11 @@ class PlaylistEventHandler(FileSystemEventHandler):
 
         if event.is_directory:
             return
+
+        # For moved events, the interesting path is the destination.
+        event_path = getattr(event, "dest_path", None) if event.event_type == "moved" else event.src_path
+        if not event_path:
+            return
         
         # Filter out noisy events. Only listen to actual changes.
         # 'opened' and 'closed' (without write) are read events and should be ignored.
@@ -28,16 +33,25 @@ class PlaylistEventHandler(FileSystemEventHandler):
             return
 
         # Ignore temporary files or hidden files
-        filename = os.path.basename(event.src_path)
+        filename = os.path.basename(event_path)
         if filename.startswith('.'):
             return
 
+        # Only watch playlist files to avoid noisy triggers.
+        if not filename.lower().endswith((".m3u", ".m3u8")):
+            return
+
         # Prevent feedback loops: if sync is in progress, ignore events
         if sync_manager.is_syncing:
-            logger.debug(f"[Watcher] Ignoring event {event.event_type} on {event.src_path} because sync is in progress.")
+            logger.debug(f"[Watcher] Ignoring event {event.event_type} on {event_path} because sync is in progress.")
             return
 
-        logger.info(f"[Watcher] Accepted file change: {event.event_type} {event.src_path}")
+        # Prevent feedback loops: ignore events right after sync writes/deletes.
+        if getattr(sync_manager, "is_watcher_suppressed", False):
+            logger.debug(f"[Watcher] Ignoring event {event.event_type} on {event_path} because watcher is suppressed.")
+            return
+
+        logger.info(f"[Watcher] Accepted file change: {event.event_type} {event_path}")
         self.trigger_sync()
 
     def trigger_sync(self):