Update app.py

app.py

@@ -4,13 +4,13 @@ import gradio as gr
 import spotipy
 from spotipy.oauth2 import SpotifyOAuth
 
-# Set credentials from environment (Hugging Face Secrets)
+# Spotify credentials (set in HF Spaces Secrets)
 CLIENT_ID = os.environ["SPOTIFY_CLIENT_ID"]
 CLIENT_SECRET = os.environ["SPOTIFY_CLIENT_SECRET"]
 REDIRECT_URI = "https://jisaacso219-rng-shuffle.hf.space/"
 SCOPE = "user-read-playback-state user-modify-playback-state playlist-read-private"
 
-# Initialize Spotify auth
+# OAuth setup
 sp_oauth = SpotifyOAuth(
     client_id=CLIENT_ID,
     client_secret=CLIENT_SECRET,
@@ -46,7 +46,7 @@ def try_login(current_url):
     playlists = sp.current_user_playlists(limit=50)["items"]
     user_playlists = {p["name"]: p["id"] for p in playlists}
 
-    # Get devices
+    # Get active devices
     devices = sp.devices()["devices"]
     device_map = {d["name"]: d["id"] for d in devices}
 
@@ -72,6 +72,7 @@ def shuffle_and_play(playlist_name, device_name):
     if not pid or not device_id:
         return "❌ Invalid playlist or device selection."
 
+    # Fetch and shuffle tracks
     tracks = []
     res = sp.playlist_tracks(pid)
     tracks.extend(res["items"])
@@ -83,7 +84,8 @@ def shuffle_and_play(playlist_name, device_name):
     random.shuffle(uris)
 
     try:
-        sp.start_playback(device_id=device_id, uris=uris)
+        # Limit to first 100 tracks to avoid 413 error
+        sp.start_playback(device_id=device_id, uris=uris[:100])
         return f"▶️ Now playing: **{playlist_name}** on **{device_name}**"
     except Exception as e:
         return f"❌ Playback failed: {str(e)}"
@@ -95,9 +97,9 @@ with gr.Blocks() as demo:
 
     url_state   = gr.Textbox(visible=False)
     status      = gr.Markdown()
-    playlist_dd = gr.Dropdown(label="Select a Playlist", visible=False)
-    device_dd   = gr.Dropdown(label="Select a Device", visible=False)
-    shuffle_btn = gr.Button("🔀 Shuffle & Play", visible=False)
+    playlist_dd = gr.Dropdown(label="Step 2: Select a Playlist", visible=False)
+    device_dd   = gr.Dropdown(label="Step 3: Select a Device", visible=False)
+    shuffle_btn = gr.Button("🔀 Step 4: Shuffle & Play", visible=False)
     result      = gr.Markdown()
 
     demo.load(
@@ -112,3 +114,4 @@ with gr.Blocks() as demo:
 if __name__ == "__main__":
     demo.launch(server_name="0.0.0.0", ssr_mode=False)
 
+