from pathlib import Path
from typing import Optional

import uvicorn
from fastapi import FastAPI
from fastapi.responses import JSONResponse
from fastapi.staticfiles import StaticFiles
from typer import Argument, Typer

from anime.routes import router

CURRENT_DIR = Path(__file__).parent
STATIC_DIR = CURRENT_DIR / "static"

cli = Typer()


async def default_exception_handler(request, exc):
    return JSONResponse(
        {
            "detail": str(exc),
        },
        status_code=500,
    )


@cli.command()
def run_app(
    host: str = "0.0.0.0",
    port: int = 8000,
    anime_dir: Optional[Path] = Argument(None, help="Directory where anime is stored."),
):
    app = FastAPI(
        title="Anime Watcher",
        description="API for RCE",
        openapi_url="/api/openapi.json",
        docs_url="/api/docs",
    )
    app.include_router(router, prefix="/api")
    app.mount(
        "/",
        StaticFiles(
            directory=STATIC_DIR,
            html=True,
            check_dir=False,
        ),
    )
    app.add_exception_handler(Exception, default_exception_handler)
    app.state.anime_dir = anime_dir
    app.state.pid = None

    uvicorn.run(app, host=host, port=port, workers=1)


def main():
    cli()


if __name__ == "__main__":
    main()