feat: Add Mopidy RPC call to refresh playlists on changes

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

main.py

@@ -62,6 +62,27 @@ def delete_playlist_file(playlist_dir, playlist_name):
             logging.error(f"Error deleting file {filepath}: {e}")
 
 
+def call_mopidy_rpc(method, params=None):
+    """Calls a Mopidy RPC method."""
+    if not settings.MOPIDY_RPC_URL:
+        return
+
+    data = {
+        'jsonrpc': '2.0',
+        'id': 1,
+        'method': method,
+    }
+    if params:
+        data['params'] = params
+
+    try:
+        response = requests.post(settings.MOPIDY_RPC_URL, json=data)
+        response.raise_for_status()
+        logging.info(f"Successfully called Mopidy RPC method: {method}")
+    except requests.exceptions.RequestException as e:
+        logging.error(f"Error calling Mopidy RPC: {e}")
+
+
 def main():
     """Get playlists from a Navidrome server using the Subsonic API."""
     parser = argparse.ArgumentParser(description="Sync Navidrome playlists to Mopidy.")
@@ -127,6 +148,7 @@ def main():
             return
 
         logging.info(f"Found {len(playlists)} playlists to sync.")
+        synced_a_playlist = False
         for playlist in playlists:
             playlist_id = playlist.get('id')
             playlist_name = playlist.get('name')
@@ -136,13 +158,19 @@ def main():
                 transformed_output = transform_m3u_to_m3u8(raw_output)
                 if transformed_output:
                     save_playlist_file(mopidy_playlist_dir, playlist_name, transformed_output)
+                    playlists_changed = True
+                    synced_a_playlist = True
         
+        if synced_a_playlist:
+            call_mopidy_rpc('core.playlists.refresh')
+
         logging.info("Force sync complete.")
         return
 
     known_playlists = {}
 
     while True:
+        playlists_changed = False
         api_url = f"{navidrome_url.rstrip('/')}/rest/getPlaylists.view"
 
         try:
@@ -201,6 +229,7 @@ def main():
             playlist_name = playlist_data.get('name')
             logging.info(f"Playlist deleted: '{playlist_name}' ({playlist_id}). Removing file.")
             delete_playlist_file(mopidy_playlist_dir, playlist_name)
+            playlists_changed = True
 
         # Check for song count or name changes in existing playlists
         for playlist_id, playlist_data in current_playlists.items():
@@ -215,6 +244,7 @@ def main():
                 name_changed = previous_name != current_name
 
                 if song_count_changed or name_changed:
+                    playlists_changed = True
                     log_msg = f"Playlist '{previous_name}' ({playlist_id}) changed."
                     if name_changed:
                         log_msg += f" Name: '{previous_name}' -> '{current_name}'."
@@ -233,6 +263,9 @@ def main():
         # Update the state for the next iteration.
         known_playlists = current_playlists
 
+        if playlists_changed:
+            call_mopidy_rpc('core.playlists.refresh')
+
         time.sleep(5)