from flask import Flask, request, redirect
import spotipy
from spotipy.oauth2 import SpotifyOAuth
import subprocess
import os
import time
from datetime import datetime

app = Flask(__name__)

client_id = "c0020cc0e05245efb2ddb61b7045e4f2"
client_secret = "2e2e7c98f849403fbacc219c1f01c17d"
redirect_uri = "https://localhost:8888/callback"

sp_oauth = SpotifyOAuth(client_id=client_id, client_secret=client_secret, redirect_uri=redirect_uri, scope="playlist-modify-private user-library-read")

@app.route('/')
def index():
    return "Welcome! <a href='/login'>Login to Spotify</a>"

@app.route('/login')
def login():
    return redirect(sp_oauth.get_authorize_url())

@app.route('/callback')
def callback():
    code = request.args.get('code')
    token_info = sp_oauth.get_access_token(code)
    access_token = token_info['access_token']
    sp = spotipy.Spotify(auth=access_token)

    print("Fetching liked songs...")
    liked_songs = []
    results = sp.current_user_saved_tracks()

    while results:
        for item in results['items']:
            liked_songs.append(item['track']['id'])
        if results['next']:
            results = sp.next(results)
            time.sleep(1)
        else:
            break

    playlist_name = datetime.now().strftime("Liked Songs Collection - %Y-%m-%d %H-%M-%S")
    user_id = sp.me()['id']
    new_playlist = sp.user_playlist_create(user_id, playlist_name, public=False)

    print(f"Created playlist: {playlist_name}")

    for i in range(0, len(liked_songs), 100):
        batch = liked_songs[i:i + 100]
        sp.playlist_add_items(new_playlist['id'], batch)
        print(f"Added {len(batch)} songs...")
        time.sleep(1)

    playlist_url = new_playlist['external_urls']['spotify']
    print(f"Playlist URL: {playlist_url}")

    # Write playlist URL for the download script
    with open("last_playlist_url.txt", "w") as f:
        f.write(playlist_url)

    return f"{playlist_url}"

if __name__ == "__main__":
    print("Starting Flask server...")
    os.execvp('flask', [
        'flask',
        'run',
        '--host=0.0.0.0',
        '--port=8888',
        '--cert=ssl/server.cert',
        '--key=ssl/server.key'
    ])