from contextlib import asynccontextmanager
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from app.core.config import settings
from app.api.v1.router import api_router


@asynccontextmanager
async def lifespan(app: FastAPI):
    """应用生命周期：启动时初始化连接，关闭时释放资源"""
    # 启动：验证数据库连接等
    yield
    # 关闭：清理资源


app = FastAPI(
    title="Track Production API",
    description="工厂生产流转管理系统 API",
    version="0.1.0",
    lifespan=lifespan,
)

# ---- CORS 跨域配置（从环境变量读取白名单） ----
app.add_middleware(
    CORSMiddleware,
    allow_origins=settings.CORS_ORIGINS_LIST,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

# ---- 注册路由 ----
app.include_router(api_router, prefix="/api/v1")


@app.get("/health")
async def health_check():
    return {"status": "ok", "version": "0.1.0"}