import json
import os
from flask import Flask, render_template
from apscheduler.schedulers.background import BackgroundScheduler
from threading import Thread  # Importiere die Thread-Klasse

app = Flask(__name__)

json_file_path = 'websites.json'
websites = []

def load_websites():
    try:
        with open(json_file_path, 'r') as json_file:
            websites_data = json.load(json_file)
            return websites_data.get('websites', [])
    except FileNotFoundError:
        print("Die Datei 'websites.json' wurde nicht gefunden.")
        return []

def has_file_changed():
    try:
        current_mtime = os.path.getmtime(json_file_path)
        return current_mtime != has_file_changed.last_mtime
    except FileNotFoundError:
        return False

has_file_changed.last_mtime = 0

def update_websites():
    global websites
    if has_file_changed():
        print("Die Datei 'websites.json' wurde geändert. Aktualisiere die Websites.")
        websites = load_websites()
        has_file_changed.last_mtime = os.path.getmtime(json_file_path)

@app.route('/')
def index():
    update_websites()
    if websites:
        return render_template('index.html', current_website=websites[0], websites=websites)
    else:
        return "Keine Websites verfügbar."

def periodic_update():
    print("Periodisches Update alle 10 Sekunden.")
    update_websites()

if __name__ == '__main__':
    scheduler = BackgroundScheduler()
    scheduler.add_job(func=periodic_update, trigger="interval", seconds=10)

    # Erstelle einen Thread für den Scheduler und starte ihn
    scheduler_thread = Thread(target=scheduler.start)
    scheduler_thread.start()

    # Starte die Flask-Anwendung
    app.run(debug=False)