"""FastAPI admin application."""
from __future__ import annotations

import threading
from pathlib import Path

from fastapi import FastAPI
from fastapi.responses import FileResponse
from fastapi.staticfiles import StaticFiles

from admin.models import init_db
from admin.routes import router

app = FastAPI(title="Seed Admin", docs_url=None, redoc_url=None)

app.include_router(router)

_STATIC = Path(__file__).parent / "static"
app.mount("/static", StaticFiles(directory=str(_STATIC)), name="static")


@app.on_event("startup")
def on_startup() -> None:
    init_db()
    _start_huey_consumer()


def _start_huey_consumer() -> None:
    from huey.consumer import Consumer
    from crawler.tasks import huey

    class _ThreadConsumer(Consumer):
        def _set_signal_handlers(self) -> None:
            pass  # signal.signal() only works on the main thread

    consumer = _ThreadConsumer(huey, workers=1, periodic=False)
    t = threading.Thread(target=consumer.run, daemon=True, name="huey-consumer")
    t.start()


@app.get("/")
def dashboard() -> FileResponse:
    return FileResponse(str(_STATIC / "dashboard.html"))