import asyncio
from contextlib import asynccontextmanager, suppress

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

from app.api.routes import api_router
from app.config import get_settings
from app.db.base import init_db
from app.pomodoro.watcher import pomodoro_watcher_loop


@asynccontextmanager
async def lifespan(_: FastAPI):
    init_db()
    watcher_task = asyncio.create_task(pomodoro_watcher_loop())
    yield
    watcher_task.cancel()
    with suppress(asyncio.CancelledError):
        await watcher_task


def create_app() -> FastAPI:
    settings = get_settings()
    app = FastAPI(title="Home AI Assistant", lifespan=lifespan)

    app.add_middleware(
        CORSMiddleware,
        allow_origins=settings.cors_origins_list,
        allow_credentials=True,
        allow_methods=["*"],
        allow_headers=["*"],
    )

    app.include_router(api_router)
    return app


app = create_app()