"""
玉宗 - 珠宝设计大师 后端服务入口
"""
import os
from contextlib import asynccontextmanager
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.staticfiles import StaticFiles

from .config import settings
from .routers import categories, designs, users
from .routers import auth
from .routers import admin


@asynccontextmanager
async def lifespan(app: FastAPI):
    """应用生命周期管理"""
    # 启动时：创建 uploads 目录
    os.makedirs(settings.UPLOAD_DIR, exist_ok=True)
    print(f"✅ 上传目录已准备: {settings.UPLOAD_DIR}")
    yield
    # 关闭时：清理资源（如需要）
    print("👋 应用已关闭")


# 创建 FastAPI 应用实例
app = FastAPI(
    title="玉宗 - 珠宝设计大师",
    description="AI驱动的珠宝设计微信小程序后端服务",
    version="1.0.0",
    lifespan=lifespan
)

# 配置 CORS
app.add_middleware(
    CORSMiddleware,
    allow_origins=["http://localhost:3000"],  # 生产环境应限制具体域名
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)


@app.get("/")
async def root():
    """根路径健康检查"""
    return {
        "message": "玉宗 - 珠宝设计大师 API",
        "version": "1.0.0",
        "status": "running"
    }


@app.get("/health")
async def health_check():
    """健康检查接口"""
    return {"status": "healthy"}


# 注册路由
app.include_router(auth.router)
app.include_router(categories.router)
app.include_router(designs.router)
app.include_router(users.router)
app.include_router(admin.router)

# 配置静态文件服务
app.mount("/uploads", StaticFiles(directory="uploads"), name="uploads")