#!/usr/bin/env python3

import time
import logging
import sys

from watchdog.observers import Observer
from pathlib import Path

from config import *
from helpers import export_all_zones
from DebouncedHandler import DebouncedHandler

logging.basicConfig(
    level=getattr(logging, LOG_LEVEL, logging.INFO),
    format="%(asctime)s %(levelname)-8s %(message)s",
    datefmt="%Y-%m-%d %H:%M:%S",
)

def main():
    # sanity checks
    if not Path(WATCH_DIR).exists():
        logging.error(f"Watch directory does not exist: {WATCH_DIR}")
        sys.exit(1)
    if not Path(GIT_REPO_DIR).exists():
        logging.error(f"Git repo directory does not exist: {GIT_REPO_DIR}")
        sys.exit(1)

    logging.info(f"Watching {WATCH_DIR} for changes; exports will be written to {GIT_REPO_DIR}")
    event_handler = DebouncedHandler(ignore_directories=False)

    observer = Observer()
    observer.schedule(event_handler, WATCH_DIR, recursive=True)
    observer.start()

    # initial export on startup
    try:
        export_all_zones(trigger_path="startup")
    except Exception as e:
        logging.exception(f"Initial export failed: {e}")

    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        logging.info("Stopping watcher...")
    finally:
        observer.stop()
        observer.join()


if __name__ == "__main__":
    main()