"""FastAPI 入口：挂 API + 静态前端。"""
from __future__ import annotations

import logging
import os
from contextlib import asynccontextmanager
from pathlib import Path

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

from .api import router
from .config import get_settings
from .db import init_db

logging.basicConfig(level=logging.INFO, format="%(asctime)s %(levelname)s %(name)s: %(message)s")
log = logging.getLogger("as-event")
settings = get_settings()


@asynccontextmanager
async def lifespan(app: FastAPI):
    # 首次启动自动建表（create_all 只补缺表，安全）；生产可用 ddl/own_db_init.sql
    if os.getenv("AUTO_CREATE_TABLES", "1") == "1":
        try:
            init_db()
            log.info("自有库建表检查完成")
        except Exception as e:  # noqa: BLE001
            log.warning("建表失败（DB 未就绪？）：%s", e)
    yield


app = FastAPI(title="A股大事记录 / 择时看板", version="0.1.0", lifespan=lifespan)

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

app.include_router(router)

# 静态前端（放在 API 之后，作为兜底挂在根路径）
_frontend = Path(__file__).resolve().parent.parent / "frontend"
if _frontend.is_dir():
    app.mount("/", StaticFiles(directory=str(_frontend), html=True), name="frontend")
else:
    log.warning("未找到前端目录: %s", _frontend)