Bump version to 1.0.3

Apply a final sanity filter to tracklist to validate assumption in matching
algorithm that the album has certain fields available.

In most situations this filter is not necessary, but occasionally we do
seem to encounter tracks that have no album metadata

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "spotify_to_tidal"
-version = "1.0.1"
+version = "1.0.3"
 requires-python = ">= 3.10"
 
 dependencies = [

src/spotify_to_tidal/sync.py

@@ -178,12 +178,14 @@ async def _fetch_all_from_spotify_in_chunks(fetch_function: Callable) -> List[di
 
 async def get_tracks_from_spotify_playlist(spotify_session: spotipy.Spotify, spotify_playlist):
     def _get_tracks_from_spotify_playlist(offset: int, playlist_id: str):
-        fields = "next,total,limit,items(track(name,album(name,artists),artists,track_number,duration_ms,id,external_ids(isrc)))"
+        fields = "next,total,limit,items(track(name,album(name,artists),artists,track_number,duration_ms,id,external_ids(isrc))),type"
         return spotify_session.playlist_tracks(playlist_id=playlist_id, fields=fields, offset=offset)
 
     print(f"Loading tracks from Spotify playlist '{spotify_playlist['name']}'")
-    return await repeat_on_request_error( _fetch_all_from_spotify_in_chunks, lambda offset: _get_tracks_from_spotify_playlist(offset=offset, playlist_id=spotify_playlist["id"]))
-
+    items = await repeat_on_request_error( _fetch_all_from_spotify_in_chunks, lambda offset: _get_tracks_from_spotify_playlist(offset=offset, playlist_id=spotify_playlist["id"]))
+    track_filter = lambda item: item.get('type', 'track') == 'track' # type may be 'episode' also
+    sanity_filter = lambda item: 'album' in item and 'name' in item['album'] and 'artists' in item['album'] and len(item['album']['artists']) > 0
+    return list(filter(sanity_filter, filter(track_filter, items)))
 
 def populate_track_match_cache(spotify_tracks_: Sequence[t_spotify.SpotifyTrack], tidal_tracks_: Sequence[tidalapi.Track]):
     """ Populate the track match cache with all the existing tracks in Tidal playlist corresponding to Spotify playlist """
@@ -282,14 +284,18 @@ async def search_new_tracks_on_tidal(tidal_session: tidalapi.Session, spotify_tr
             
 async def sync_playlist(spotify_session: spotipy.Spotify, tidal_session: tidalapi.Session, spotify_playlist, tidal_playlist: tidalapi.Playlist | None, config: dict):
     """ sync given playlist to tidal """
-    # Create a new Tidal playlist if required
-    if not tidal_playlist:
+    # Get the tracks from both Spotify and Tidal, creating a new Tidal playlist if necessary
+    spotify_tracks = await get_tracks_from_spotify_playlist(spotify_session, spotify_playlist)
+    if len(spotify_tracks) == 0:
+        return # nothing to do
+    if tidal_playlist:
+        old_tidal_tracks = await get_all_playlist_tracks(tidal_playlist)
+    else:
         print(f"No playlist found on Tidal corresponding to Spotify playlist: '{spotify_playlist['name']}', creating new playlist")
         tidal_playlist =  tidal_session.user.create_playlist(spotify_playlist['name'], spotify_playlist['description'])
+        old_tidal_tracks = []
 
     # Extract the new tracks from the playlist that we haven't already seen before
-    spotify_tracks = await get_tracks_from_spotify_playlist(spotify_session, spotify_playlist)
-    old_tidal_tracks = await get_all_playlist_tracks(tidal_playlist)
     populate_track_match_cache(spotify_tracks, old_tidal_tracks)
     await search_new_tracks_on_tidal(tidal_session, spotify_tracks, spotify_playlist['name'], config)
     new_tidal_track_ids = get_tracks_for_new_tidal_playlist(spotify_tracks)