fix: song_info needs URI not URL; album_info returns generator of track items

- Track: pass spotify:track:ID URI instead of full https:// URL
- Album: Public().album_info() yields track items (generator); metadata from PublicAlbum

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/spotify_resolve.py

@@ -64,7 +64,9 @@ def resolve(sp_type, sp_id):
     url = f'https://open.spotify.com/{sp_type}/{sp_id}'
 
     if sp_type == 'track':
-        raw = sp_mod.Public().song_info(url)
+        # song_info expects a Spotify URI, not a full URL
+        uri = f'spotify:track:{sp_id}'
+        raw = sp_mod.Public().song_info(uri)
         eprint(f'[spotapi] track raw type={type(raw).__name__} keys={list(raw.keys()) if isinstance(raw, dict) else "?"}')
         if isinstance(raw, dict):
             for k, v in raw.items():
@@ -86,33 +88,29 @@ def resolve(sp_type, sp_id):
                 'tracks': [tr]}
 
     if sp_type == 'album':
-        alb_info = sp_mod.Public().album_info(url)
-        eprint(f'[spotapi] album raw type={type(alb_info).__name__} keys={list(alb_info.keys()) if isinstance(alb_info, dict) else "?"}')
-        if isinstance(alb_info, dict):
-            for k, v in alb_info.items():
-                eprint(f'[spotapi]   alb[{k!r}] = {repr(v)[:160]}')
-        # Partner API: data.albumUnion.{name, artists, coverArt, tracks.items[]}
-        d    = (alb_info.get('data') or {}) if isinstance(alb_info, dict) else {}
-        au   = d.get('albumUnion') or d.get('albumV2') or (alb_info if isinstance(alb_info, dict) else {})
+        # PublicAlbum.get_album_info() → metadata (data.albumUnion.{name,artists,coverArt})
+        # Public().album_info(url)     → generator that yields track items
+        cls_name = next((n for n in ('PublicAlbum', 'Album') if n in available), None)
+        alb_meta = getattr(sp_mod, cls_name)(url).get_album_info() if cls_name else {}
+        d  = (alb_meta.get('data') or {}) if isinstance(alb_meta, dict) else {}
+        au = d.get('albumUnion') or d.get('albumV2') or {}
         name = au.get('name', '')
-        # artist(s)
         artist_items = (au.get('artists') or {}).get('items') or []
         artist = ', '.join(
             (a.get('profile') or {}).get('name', '') or a.get('name', '') for a in artist_items
-        ) or au.get('artist', '')
-        # artwork
-        cover_items = (au.get('coverArt') or {}).get('sources') or (au.get('images') or {}).get('items') or []
+        )
+        cover_items = (au.get('coverArt') or {}).get('sources') or []
         art = cover_items[0].get('url', '') if cover_items else ''
-        # tracks
-        raw_tracks = (au.get('tracks') or {}).get('items') or []
-        eprint(f'[spotapi] album tracks count={len(raw_tracks)} first={repr(raw_tracks[0])[:200] if raw_tracks else "none"}')
-        # album track items: {uid, track: {__typename, data: {trackUnion: {...}}}}
-        # wrap as {itemV2: track_obj} so _parse_track can navigate itemV2.data.trackUnion
+
+        # album_info(url) yields track items — consume the generator
+        raw_tracks = list(sp_mod.Public().album_info(url))
+        eprint(f'[spotapi] album_info generator → {len(raw_tracks)} items; first={repr(raw_tracks[0])[:200] if raw_tracks else "none"}')
         def _alb_track(item):
-            track_obj = item.get('track') or item
-            return _parse_track({'itemV2': track_obj},
-                default_album=name, default_art=art,
-                default_artist=artist)
+            # items may be dicts with various shapes — log on parse failure
+            tr = _parse_track({'itemV2': item}, default_album=name, default_art=art, default_artist=artist)
+            if not tr:
+                tr = _parse_track(item, default_album=name, default_art=art, default_artist=artist)
+            return tr
         tracks = [t for t in (_alb_track(i) for i in raw_tracks) if t]
         eprint(f'[spotapi] album ok — {len(tracks)} tracks')
         return {'type': 'album', 'name': name, 'artist': artist, 'artworkUrl': art, 'tracks': tracks}