Add SPOTIFY_COOKIE_FILE env var and handle correctly when its missing

app/__init__.py

@@ -172,7 +172,15 @@ for name, func in filters.filters.items():
     
     
 from .providers import SpotifyClient
-spotify_client = SpotifyClient('/jellyplist/open.spotify.com_cookies.txt')
+if app.config['SPOTIFY_COOKIE_FILE']:
+    if os.path.exists(app.config['SPOTIFY_COOKIE_FILE']):
+        spotify_client = SpotifyClient(app.config['SPOTIFY_COOKIE_FILE'])
+    else:
+        app.logger.error(f"Cookie file {app.config['SPOTIFY_COOKIE_FILE']} does not exist. Exiting.")
+        sys.exit(1)
+else:
+    spotify_client = SpotifyClient()
+    
 spotify_client.authenticate()
 from .registry import MusicProviderRegistry
 MusicProviderRegistry.register_provider(spotify_client)

config.py

@@ -11,6 +11,7 @@ class Config:
     JELLYFIN_REQUEST_TIMEOUT = int(os.getenv('JELLYFIN_REQUEST_TIMEOUT','10'))
     SPOTIFY_CLIENT_ID = os.getenv('SPOTIFY_CLIENT_ID')
     SPOTIFY_CLIENT_SECRET = os.getenv('SPOTIFY_CLIENT_SECRET')
+    SPOTIFY_COOKIE_FILE = os.getenv('SPOTIFY_COOKIE_FILE')
     JELLYPLIST_DB_HOST = os.getenv('JELLYPLIST_DB_HOST')
     JELLYPLIST_DB_PORT = int(os.getenv('JELLYPLIST_DB_PORT','5432'))
     JELLYPLIST_DB_USER = os.getenv('JELLYPLIST_DB_USER')