__version__ = "pre-dev"
__all__ = ["quizify"]
__author__ = "SimolZimol"

from flask import Flask, redirect, request, session, url_for, render_template
import os
import spotipy
from spotipy.oauth2 import SpotifyOAuth
import random

app = Flask(__name__)
app.secret_key = os.getenv("SECRET_KEY")

SCOPE = "user-library-read playlist-read-private"

def get_spotify_client():
    return spotipy.Spotify(auth_manager=SpotifyOAuth(
        client_id=os.getenv("SPOTIPY_CLIENT_ID"),
        client_secret=os.getenv("SPOTIPY_CLIENT_SECRET"),
        redirect_uri=os.getenv("SPOTIPY_REDIRECT_URI"),
        scope=SCOPE,
        cache_path=".cache"
    ))

@app.route("/")
def home():
    return render_template("login.html")

@app.route("/login")
def login():
    sp_oauth = SpotifyOAuth(
        client_id=os.getenv("SPOTIPY_CLIENT_ID"),
        client_secret=os.getenv("SPOTIPY_CLIENT_SECRET"),
        redirect_uri=os.getenv("SPOTIPY_REDIRECT_URI"),
        scope=SCOPE
    )
    auth_url = sp_oauth.get_authorize_url()
    return redirect(auth_url)

@app.route("/callback")
def callback():
    sp_oauth = SpotifyOAuth(
        client_id=os.getenv("SPOTIPY_CLIENT_ID"),
        client_secret=os.getenv("SPOTIPY_CLIENT_SECRET"),
        redirect_uri=os.getenv("SPOTIPY_REDIRECT_URI"),
        scope=SCOPE
    )
    session.clear()
    code = request.args.get('code')
    token_info = sp_oauth.get_access_token(code)
    session["token_info"] = token_info
    return redirect("/playlists")

@app.route("/playlists")
def playlists():
    sp = get_spotify_client()
    playlists = sp.current_user_playlists()["items"]
    return render_template("playlists.html", playlists=playlists)

@app.route("/quiz/<playlist_id>")
def quiz(playlist_id):
    sp = get_spotify_client()
    items = sp.playlist_items(playlist_id, additional_types=["track"])["items"]
    
    tracks = [item["track"] for item in items if item["track"]["preview_url"]]
    if not tracks:
        return "Keine Tracks mit Vorschau verfügbar!"

    track = random.choice(tracks)
    return render_template("quiz.html", track=track)

@app.route('/logout')
def logout():
    session.pop('user', None)
    return redirect(url_for('index'))

@app.route('/')
def index():
    user = session.get('user')  # Benutzerinfos aus der Session holen, falls vorhanden
    return render_template('index.html', user=user)

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=5000, debug=True)