import os, logging
DEBUG = os.environ.get('DEBUG')
logging.basicConfig(
        format='[%(asctime)s] %(levelname)s %(module)s/%(funcName)s - %(message)s',
        level=logging.DEBUG if DEBUG else logging.INFO)

import secrets
import threading
import requests
from inotify_simple import INotify, flags

SCAN_DELAY_SECONDS = 10
timer = None


def trigger_scan():
    """Trigger a library scan in Immich."""
    logging.info("Triggering Immich library scan.")
    url = f"https://photos.dns.t0.vc/api/libraries/{secrets.LIBRARY_UUID}/scan"
    headers = {
        'Accept': 'application/json',
        'x-api-key': secrets.IMMICH_API_KEY,
    }
    try:
        response = requests.post(url, headers=headers)
        response.raise_for_status()
        logging.info(f"Scan triggered successfully: {response.status_code}")
    except requests.exceptions.RequestException as e:
        logging.error(f"Failed to trigger scan: {e}")


def main():
    global timer
    watch_flags = flags.MODIFY | flags.CREATE | flags.DELETE | flags.MOVED_FROM | flags.MOVED_TO

    with INotify() as inotify:
        for path in WATCH_PATHS:
            logging.info(f"Watching {path}")
            inotify.add_watch(path, watch_flags)

        try:
            while True:
                events = inotify.read(timeout=1000)
                if events:
                    for event in events:
                        logging.debug(f"Event: {event!r}")
                    if timer:
                        timer.cancel()
                        logging.info('Debounce cancelled timer.')
                    timer = threading.Timer(SCAN_DELAY_SECONDS, trigger_scan)
                    timer.start()
                    logging.info(f"Modification detected. Triggering scan in {SCAN_DELAY_SECONDS} seconds.")
        except KeyboardInterrupt:
            logging.info("Shutting down...")
        finally:
            if timer:
                timer.cancel()


if __name__ == '__main__':
    main()