import argparse
import sys

import uvicorn

from .api import create_app
from .config import load_settings


def main():
    parser = argparse.ArgumentParser(description="Local game translation API")
    parser.add_argument("--config", default="config.toml")
    args = parser.parse_args()
    try:
        settings = load_settings(args.config)
    except (ValueError, OSError) as exc:
        print(f"Cannot load configuration: {exc}", file=sys.stderr)
        raise SystemExit(1) from exc
    # One worker owns the persisted queue. Only loopback is exposed.
    uvicorn.run(create_app(settings), host="127.0.0.1", port=settings.port, workers=1)


if __name__ == "__main__":
    main()