Update app.py

app.py

@@ -242,35 +242,54 @@ def load_config() -> AuthConfig:
     )
 
 
-spotify = SpotifyClient(load_config())
+_spotify: SpotifyClient | None = None
+_config_error: str | None = None
+
+
+def get_spotify() -> SpotifyClient:
+    global _spotify, _config_error
+    if _spotify is not None:
+        return _spotify
+    try:
+        _spotify = SpotifyClient(load_config())
+        _config_error = None
+        return _spotify
+    except Exception as exc:
+        _config_error = str(exc)
+        raise RuntimeError(
+            "Spotify config missing/invalid. Set HF Space Secrets: "
+            "SPOTIFY_CLIENT_ID, SPOTIFY_CLIENT_SECRET, SPOTIFY_REDIRECT_URI. "
+            f"Details: {_config_error}"
+        ) from exc
 
 
 def spotify_auth_url(state: str = "") -> dict[str, Any]:
-    return spotify.auth_url(state=state or None)
+    return get_spotify().auth_url(state=state or None)
 
 
 def spotify_exchange_code(code: str, state: str = "") -> dict[str, Any]:
-    return spotify.exchange_code(code=code, state=state or None)
+    return get_spotify().exchange_code(code=code, state=state or None)
 
 
 def spotify_me() -> dict[str, Any]:
-    return spotify.me()
+    return get_spotify().me()
 
 
 def search_tracks(query: str, limit: int = 5) -> dict[str, Any]:
-    return spotify.search_tracks(query=query, limit=limit)
+    return get_spotify().search_tracks(query=query, limit=limit)
 
 
 def create_playlist(name: str, description: str = "", public: bool = False) -> dict[str, Any]:
-    return spotify.create_playlist(name=name, description=description, public=public)
+    return get_spotify().create_playlist(name=name, description=description, public=public)
 
 
 def add_tracks_to_playlist(playlist_id: str, track_ids_csv: str) -> dict[str, Any]:
     track_ids = [x.strip() for x in track_ids_csv.split(",") if x.strip()]
-    return spotify.add_tracks(playlist_id=playlist_id, track_ids=track_ids)
+    return get_spotify().add_tracks(playlist_id=playlist_id, track_ids=track_ids)
 
 
 def create_playlist_from_search(name: str, query: str, limit: int = 10, public: bool = False) -> dict[str, Any]:
+    spotify = get_spotify()
     tracks = spotify.search_tracks(query=query, limit=limit).get("results", [])
     if not tracks:
         raise RuntimeError("No tracks found for query.")