"""FastAPI app entrypoint."""

from __future__ import annotations

import logging

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

from captcha_solver.api.routes import router
from captcha_solver.config import get_settings


def create_app() -> FastAPI:
    s = get_settings()
    logging.basicConfig(
        level=getattr(logging, s.log_level.upper(), logging.INFO),
        format="%(asctime)s %(levelname)s %(name)s: %(message)s",
    )

    app = FastAPI(
        title="captcha-solver-api",
        description="Free local AI CAPTCHA solving API. No 2captcha. No pay-per-solve.",
        version="0.1.0",
        docs_url="/docs",
        redoc_url="/redoc",
    )
    app.add_middleware(
        CORSMiddleware,
        allow_origins=["*"],
        allow_methods=["*"],
        allow_headers=["*"],
    )
    app.include_router(router)

    @app.on_event("startup")
    async def warm_engines() -> None:
        from captcha_solver.api.routes import get_state
        get_state()
        logging.getLogger(__name__).info("engines warmed, ready")

    return app


app = create_app()


def main() -> None:
    import sys
    import uvicorn

    s = get_settings()
    port = s.port

    # Accept --port from command line (HF Spaces sets PORT env var)
    args = sys.argv[1:]
    for i, arg in enumerate(args):
        if arg == "--port" and i + 1 < len(args):
            try:
                port = int(args[i + 1])
            except ValueError:
                pass

    # Also respect PORT env var
    import os
    port = int(os.environ.get("PORT", port))

    uvicorn.run(
        "captcha_solver.main:app",
        host=s.host,
        port=port,
        log_level=s.log_level,
        workers=s.workers,
    )


if __name__ == "__main__":
    main()