"""Single entry point: build Application, run HTTP server + polling. Migrations run in Docker entrypoint."""
import asyncio
import logging
import threading

import config
from telegram.ext import ApplicationBuilder

from handlers import register_handlers

logging.basicConfig(
    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
    level=logging.INFO,
)
logger = logging.getLogger(__name__)


def _run_uvicorn(web_app, port: int) -> None:
    """Run uvicorn in a dedicated thread with its own event loop."""
    import uvicorn
    loop = asyncio.new_event_loop()
    asyncio.set_event_loop(loop)
    server = uvicorn.Server(
        uvicorn.Config(web_app, host="0.0.0.0", port=port, log_level="info"),
    )
    loop.run_until_complete(server.serve())


def main() -> None:
    app = ApplicationBuilder().token(config.BOT_TOKEN).build()
    register_handlers(app)

    from api.app import app as web_app
    t = threading.Thread(
        target=_run_uvicorn,
        args=(web_app, config.HTTP_PORT),
        daemon=True,
    )
    t.start()

    logger.info("Bot starting (polling)... HTTP API on port %s", config.HTTP_PORT)
    app.run_polling(allowed_updates=["message"])


if __name__ == "__main__":
    main()