import threading
import time
import os
import json
from get_playlists import update_playlist_if_needed

CONFIG_PATH = os.path.join(os.path.dirname(__file__), 'main_data', 'app_config.txt')
MEDIA_DATA_PATH = os.path.join(os.path.dirname(__file__), 'static_data', 'media')
PLAYLIST_DIR = os.path.join(os.path.dirname(__file__), 'static_data', 'playlist')
LOCAL_PLAYLIST_PATH = os.path.join(PLAYLIST_DIR, 'server_playlist.json')

def playlist_update_loop(refresh_time, stop_event, config, local_playlist_path, media_dir, playlist_dir):
    while not stop_event.is_set():
        updated = update_playlist_if_needed(local_playlist_path, config, media_dir, playlist_dir)
        if updated:
            print(f"[REFRESH] Playlist updated from server at {time.strftime('%X')}")
        else:
            print(f"[REFRESH] Playlist already up to date at {time.strftime('%X')}")
        time.sleep(refresh_time)

def main():
    with open(CONFIG_PATH, 'r') as f:
        config = json.load(f)
    refresh_time = int(config.get('refresh_time', 5)) * 60  # minutes
    stop_event = threading.Event()
    update_thread = threading.Thread(
        target=playlist_update_loop,
        args=(refresh_time, stop_event, config, LOCAL_PLAYLIST_PATH, MEDIA_DATA_PATH, PLAYLIST_DIR),
        daemon=True
    )
    update_thread.start()
    print("Playlist update thread started. Press Ctrl+C to exit.")
    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        print("Exiting...")
        stop_event.set()
        update_thread.join()

if __name__ == '__main__':
    main()