#!/usr/bin/env python3
"""RQ worker entrypoint for Docker containers."""

from __future__ import annotations

import argparse
import sys
from pathlib import Path

# In Docker, the working directory is /app and app code is at /app/app/
# Add /app to sys.path so we can import app.services.queue_worker
WORKDIR = Path.cwd()
sys.path.insert(0, str(WORKDIR))

from app.services.queue_worker import run_worker


def cmd_worker(args: argparse.Namespace) -> int:
    try:
        run_worker()
    except KeyboardInterrupt:
        return 0
    return 0


def build_parser() -> argparse.ArgumentParser:
    parser = argparse.ArgumentParser(description="RQ background worker helpers.")
    subparsers = parser.add_subparsers(dest="command", required=True)

    worker_parser = subparsers.add_parser(
        "worker",
        help="Continuously process queued background work.",
    )
    worker_parser.set_defaults(func=cmd_worker)

    return parser


def main() -> None:
    parser = build_parser()
    args = parser.parse_args()
    try:
        sys.exit(args.func(args))
    except Exception:
        # Log unexpected errors before exiting
        import traceback
        traceback.print_exc()
        sys.exit(1)


if __name__ == "__main__":
    main()