"""Entry point for ``python -m open_range.server``.

Starts the OpenRange FastAPI server via uvicorn.

Usage::

    python -m open_range.server              # default host/port
    python -m open_range.server --port 9000  # custom port
    python -m open_range.server --host 0.0.0.0 --port 8080
"""

from __future__ import annotations

import argparse
import sys


def main() -> None:
    parser = argparse.ArgumentParser(
        description="Run the OpenRange FastAPI server",
    )
    parser.add_argument(
        "--host",
        default="127.0.0.1",
        help="Bind address (default: 127.0.0.1)",
    )
    parser.add_argument(
        "--port",
        type=int,
        default=8000,
        help="Bind port (default: 8000)",
    )
    parser.add_argument(
        "--reload",
        action="store_true",
        help="Enable auto-reload for development",
    )
    parser.add_argument(
        "--log-level",
        default="info",
        choices=["debug", "info", "warning", "error", "critical"],
        help="Uvicorn log level (default: info)",
    )
    args = parser.parse_args()

    try:
        import uvicorn
    except ImportError:
        print("uvicorn is required: pip install uvicorn", file=sys.stderr)
        sys.exit(1)

    uvicorn.run(
        "open_range.server.app:app",
        host=args.host,
        port=args.port,
        reload=args.reload,
        log_level=args.log_level,
    )


if __name__ == "__main__":
    main()