from __future__ import annotations

import argparse
import logging
import sys
from pathlib import Path

from .config import ConfigError, load_config
from .service import WifiBackgroundService
from .windows import WifiCommandError


def main() -> int:
    parser = argparse.ArgumentParser(description="OSU Wi-Fi background monitor for Windows")
    parser.add_argument(
        "--config",
        default="config.yaml",
        help="Path to the YAML configuration file (default: config.yaml)",
    )
    parser.add_argument(
        "--once",
        action="store_true",
        help="Run one monitor iteration and exit",
    )
    args = parser.parse_args()

    try:
        config = load_config(Path(args.config))
    except ConfigError as exc:
        print(f"Configuration error: {exc}", file=sys.stderr)
        return 2

    logging.basicConfig(
        level=getattr(logging, config.logging.level, logging.INFO),
        format="%(asctime)s [%(levelname)s] %(message)s",
    )
    logger = logging.getLogger("osu_wifi_login")

    try:
        service = WifiBackgroundService(config, logger)
        return service.run_forever(run_once=args.once)
    except WifiCommandError as exc:
        logger.error("%s", exc)
        return 1
    except KeyboardInterrupt:
        logger.info("Stopping OSU Wi-Fi monitor")
        return 0