#!/usr/bin/env python3
"""Web portal simulator — FastAPI + live reload."""

from __future__ import annotations

import argparse
import os
import sys
from pathlib import Path


def main() -> int:
    parser = argparse.ArgumentParser(description="Portal web simulator (FastAPI)")
    parser.add_argument("--host", default="127.0.0.1")
    parser.add_argument("--port", type=int, default=8765)
    parser.add_argument(
        "--reload",
        action=argparse.BooleanOptionalAction,
        default=True,
        help="reload Python on code changes (default: on)",
    )
    parser.add_argument(
        "--browser-reload",
        action=argparse.BooleanOptionalAction,
        default=True,
        help="reload browser when web/ files change (default: on)",
    )
    args = parser.parse_args()

    web_dir = Path(__file__).resolve().parent.parent / "web"
    if not web_dir.is_dir():
        print(f"Missing web directory: {web_dir}", file=sys.stderr)
        return 1

    try:
        import uvicorn
    except ImportError:
        print(
            "FastAPI simulator requires: pipenv install fastapi 'uvicorn[standard]'",
            file=sys.stderr,
        )
        return 1

    os.environ["PORTAL_DEV_RELOAD"] = "1" if args.browser_reload else "0"

    leds_dir = Path(__file__).resolve().parent.parent / "leds"
    reload_dirs = [str(web_dir), str(leds_dir)] if args.reload else None

    print(f"Portal simulator → http://{args.host}:{args.port}/")
    if args.reload:
        print("Python reload: on")
    if args.browser_reload:
        print("Browser reload: on (watches web/)")
    print("Ctrl+C to stop")

    uvicorn.run(
        "leds.portal_web:app",
        host=args.host,
        port=args.port,
        reload=args.reload,
        reload_dirs=reload_dirs,
    )
    return 0


if __name__ == "__main__":
    raise SystemExit(main())