"""FastAPI 应用入口。"""
from __future__ import annotations

import asyncio
from contextlib import asynccontextmanager

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

from app.api import screenshots, settings_api, todos, watch
from app.core.config import settings
from app.core.db import init_db
from app.core.logger import get_logger, setup_logging
from app.services.watcher import watcher_service
from app.services.worker import worker


setup_logging(settings.debug)
logger = get_logger(__name__)


@asynccontextmanager
async def lifespan(app: FastAPI):  # noqa: ARG001
    """启动时初始化 DB、启动监听器与分析 worker。"""
    init_db()
    loop = asyncio.get_running_loop()

    async def notify() -> None:
        worker.notify()

    watcher_service.start(loop, notify)
    await worker.start()
    logger.info("snapAna 启动完成 @ http://%s:%d", settings.host, settings.port)
    try:
        yield
    finally:
        watcher_service.stop()
        await worker.stop()


app = FastAPI(title="snapAna", version="0.1.0", lifespan=lifespan)

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

app.include_router(screenshots.router)
app.include_router(todos.router)
app.include_router(settings_api.router)
app.include_router(watch.router)


@app.get("/api/health")
def health() -> dict:
    """健康检查。"""
    return {"status": "ok", "version": "0.1.0"}