"""Entry point for the USB camera web UI server.

Usage::

    uv run python -m camera.app            # run directly
    uv run python -m camera.app --host 0.0.0.0 --port 8080
"""

import argparse
import signal
import sys

from camera.mjpeg import run


def main():
    parser = argparse.ArgumentParser(description="USB Camera Web UI Server")
    parser.add_argument("--host", default="0.0.0.0", help="Bind address (default: 0.0.0.0)")
    parser.add_argument("--port", type=int, default=8080, help="Port (default: 8080)")
    args = parser.parse_args()

    # Handle shutdown gracefully
    def _signal_handler(signum, frame):
        print(f"\nReceived signal {signum}, shutting down...")
        sys.exit(0)

    signal.signal(signal.SIGINT, _signal_handler)
    signal.signal(signal.SIGTERM, _signal_handler)

    print(f"Starting camera web UI on http://{args.host}:{args.port}")
    print("Press Ctrl+C to stop")
    run(host=args.host, port=args.port)


if __name__ == "__main__":
    main()