main.py

import os
from flask import Flask, session, redirect, url_for, request

from spotipy import Spotify
from spotipy.oauth2 import SpotifyOAuth
from spotipy.cache_handler import FlaskSessionCacheHandler

app = Flask(__name__)
app.config['SECRET_KEY'] = os.urandom(64)

client_id = 'f1df06fa6dcf4da08d2393fdb7042eba'
client_secret = '683a0521431d4d39ae93a87aa1c60a21'
redirect_uri = 'http://localhost:5000/callback'
scope = 'playlist-read-private'


cache_handler = FlaskSessionCacheHandler(session)
sp_oauth = SpotifyOAuth(
    client_id=client_id,
    client_secret=client_secret,
    redirect_uri=redirect_uri,
    scope=scope,
    cache_handler=cache_handler,
    show_dialog=True
)

sp = Spotify(oauth_manager=sp_oauth)

@app.route('/')
def home():
    if not sp_oauth.validate_token(cache_handler.get_cached_token()):
        auth_url = sp_oauth.get_authorize_url()
        return redirect(auth_url) 
    return redirect(url_for('get_playlists'))


@app.route('/callback')
def callback():
    sp_oauth.get_access_token(request.args['code'])
    return redirect(url_for('get_playlists'))

@app.route('/get_playlists')
def get_playlists():
    if not sp_oauth.validate_token(cache_handler.get_cached_token()):
        auth_url = sp_oauth.get_authorize_url()
        return redirect(auth_url) 

    playlists = sp.current_user_playlists()
    playlists_info = [(pl['name'], pl['external_urls']['spotify']) for pl in playlists['items']]
    playlists_html = '<br>'.join([f'{name}: {url}' for name, url, in playlists_info])

    return playlists_html

@app.route('/logout')
def logout():
    session.clear()
    return redirect(url_for('home'))

if __name__ == '__main__':
    app.run(debug=True)