Create app.py

app.py

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+import os
+import gradio as gr
+from flask import Flask, request, redirect
+from spotipy import Spotify, SpotifyOAuth
+from threading import Thread
+import random
+import time
+
+# ========== Spotify OAuth Setup ==========
+CLIENT_ID = os.getenv("SPOTIFY_CLIENT_ID")
+CLIENT_SECRET = os.getenv("SPOTIFY_CLIENT_SECRET")
+REDIRECT_URI = REDIRECT_URI = "https://jisaacso219-rng-shuffle.hf.space/callback"
+SCOPE = "user-read-playback-state user-modify-playback-state playlist-read-private"
+
+auth_codes = {}  # Store auth tokens per session (not secure for prod)
+
+sp_oauth = SpotifyOAuth(
+    client_id=CLIENT_ID,
+    client_secret=CLIENT_SECRET,
+    redirect_uri=REDIRECT_URI,
+    scope=SCOPE
+)
+
+# ========== Flask Redirect Server ==========
+app = Flask(__name__)
+
+@app.route("/callback")
+def callback():
+    code = request.args.get("code")
+    token_info = sp_oauth.get_access_token(code, as_dict=True)
+    auth_codes["user"] = token_info  # Single-user session for now
+    return "✅ Spotify login successful! You can return to the app."
+
+Thread(target=lambda: app.run(host="0.0.0.0", port=7861)).start()
+
+# ========== Gradio UI ==========
+def login():
+    return sp_oauth.get_authorize_url()
+
+def list_playlists():
+    if "user" not in auth_codes:
+        return [], "⚠️ Please log in first."
+    sp = Spotify(auth=auth_codes["user"]["access_token"])
+    pl = sp.current_user_playlists(limit=50)
+    choices = {p['name']: p['id'] for p in pl['items']}
+    return list(choices.keys()), "Select a playlist to shuffle and play."
+
+def shuffle_and_play(playlist_name):
+    if "user" not in auth_codes:
+        return "⚠️ Please log in first."
+    sp = Spotify(auth=auth_codes["user"]["access_token"])
+    pl = sp.current_user_playlists(limit=50)
+    pl_map = {p['name']: p['id'] for p in pl['items']}
+    playlist_id = pl_map[playlist_name]
+
+    tracks = []
+    results = sp.playlist_tracks(playlist_id)
+    tracks.extend(results['items'])
+    while results['next']:
+        results = sp.next(results)
+        tracks.extend(results['items'])
+
+    uris = [t['track']['uri'] for t in tracks if t['track']]
+    random.shuffle(uris)
+
+    devices = sp.devices()
+    if not devices['devices']:
+        return "⚠️ No active Spotify devices found. Open the Spotify app and try again."
+    device_id = devices['devices'][0]['id']
+
+    sp.start_playback(device_id=device_id, uris=uris)
+    return f"▶️ Playing {len(uris)} shuffled tracks from '{playlist_name}'!"
+
+with gr.Blocks() as demo:
+    gr.Markdown("# 🎶 Spotify Playlist Shuffler")
+    login_btn = gr.Button("🔐 Log in to Spotify")
+    login_out = gr.Textbox(label="Login URL")
+
+    playlist_list = gr.Dropdown(label="Your Playlists")
+    refresh_btn = gr.Button("🔄 Load My Playlists")
+    status = gr.Textbox()
+
+    play_btn = gr.Button("▶️ Shuffle + Play")
+    result = gr.Textbox()
+
+    login_btn.click(fn=login, outputs=login_out)
+    refresh_btn.click(fn=list_playlists, outputs=[playlist_list, status])
+    play_btn.click(fn=shuffle_and_play, inputs=playlist_list, outputs=result)
+
+demo.launch(server_port=7860, server_name="0.0.0.0")