"""FastAPI 入口。

通过 `uvicorn app.main:app --reload` 启动。
"""
from __future__ import annotations

import logging
from collections.abc import AsyncIterator
from contextlib import asynccontextmanager

from pathlib import Path

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

from app.api.v1.ad import router as ad_router
from app.api.v1.auth import router as auth_router
from app.api.v1.compare import router as compare_router
from app.api.v1.compare_milestone import router as compare_milestone_router
from app.api.v1.compare_record import router as compare_record_router
from app.api.v1.coupon import router as coupon_router
from app.api.v1.cps_redirect import router as cps_redirect_router
from app.api.internal.price import router as internal_price_router
from app.api.internal.store import router as internal_store_router
from app.api.v1.feedback import router as feedback_router
from app.api.v1.invite import router as invite_router
from app.api.v1.meituan import router as meituan_router
from app.api.v1.order import router as order_router
from app.api.v1.platform import router as platform_router
from app.api.v1.report import router as report_router
from app.api.v1.savings import router as savings_router
from app.api.v1.signin import router as signin_router
from app.api.v1.tasks import router as tasks_router
from app.api.v1.user import router as user_router
from app.api.v1.wallet import router as wallet_router
from app.api.v1.wxpay import router as wxpay_router
from app.core.config import settings
from app.core.logging import setup_logging
from app.core.withdraw_reconcile_worker import (
    start_withdraw_reconcile_worker,
    stop_withdraw_reconcile_worker,
)

setup_logging(debug=settings.APP_DEBUG)
logger = logging.getLogger("shagua.main")


@asynccontextmanager
async def lifespan(_: FastAPI) -> AsyncIterator[None]:
    # 提示而非强制建表:生产用 alembic upgrade head,本地 dev 也建议先跑一次 migration。
    # 这里只 log,不自动 create_all,避免生产环境意外建出过时 schema。
    logger.info(
        "started env=%s debug=%s db=%s",
        settings.APP_ENV,
        settings.APP_DEBUG,
        settings.DATABASE_URL.split("://", 1)[0],
    )
    reconcile_task = start_withdraw_reconcile_worker()
    try:
        yield
    finally:
        await stop_withdraw_reconcile_worker(reconcile_task)
        logger.info("shutting down")


app = FastAPI(
    title=settings.APP_NAME,
    version="0.1.0",
    docs_url="/docs" if not settings.is_prod else None,
    redoc_url="/redoc" if not settings.is_prod else None,
    lifespan=lifespan,
)

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


@app.get("/health", tags=["meta"])
def health() -> dict[str, str]:
    return {"status": "ok"}


app.include_router(auth_router)
app.include_router(user_router)
app.include_router(feedback_router)
app.include_router(invite_router)
app.include_router(coupon_router)
app.include_router(compare_router)
app.include_router(compare_record_router)
app.include_router(compare_milestone_router)
app.include_router(meituan_router)
app.include_router(wallet_router)
app.include_router(wxpay_router)
app.include_router(signin_router)
app.include_router(tasks_router)
app.include_router(savings_router)
app.include_router(ad_router)
app.include_router(order_router)
app.include_router(report_router)
# 内部(server→server)端点:pricebot 上报价格观测 / 店铺映射,靠共享密钥头校验,不对客户端开放。
app.include_router(internal_price_router)
app.include_router(internal_store_router)
app.include_router(platform_router)
# CPS 群发短链跳转 /c/{code}(公网无鉴权:记点击 → 302 跳美团)
app.include_router(cps_redirect_router)

# 用户上传文件(头像)静态服务。生产可改由 nginx 直接 serve MEDIA_ROOT。
_media_root = Path(settings.MEDIA_ROOT)
_media_root.mkdir(parents=True, exist_ok=True)
app.mount(
    settings.MEDIA_URL_PREFIX,
    StaticFiles(directory=str(_media_root)),
    name="media",
)