"""应用入口：四库异步生命周期 + 中间件 + 全局异常 + 路由装配。"""
from contextlib import asynccontextmanager

import uvicorn
from fastapi import FastAPI

from api.router import api_router
from config import database
from service.customer_agent.bootstrap import (
    build_default_knowledge_upload_service,
    build_default_runtime,
)
from utils.exceptions import register_exception_handlers
from utils.logger import setup_logging
from utils.request_id import RequestIdMiddleware


@asynccontextmanager
async def lifespan(app: FastAPI):
    setup_logging()  # 幂等：分级日志 + trace_id + 脱敏
    # 四库会话懒创建：启动不连接任何库，首次访问才建，可手动预热：
    # asyncio.run(database.init_db())
    yield
    await database.dispose()  # 清理已创建的单例（未创建则空操作）


app = FastAPI(title="智能公募基金系统", version="0.1.0", lifespan=lifespan)

app.add_middleware(RequestIdMiddleware)
register_exception_handlers(app)
app.include_router(api_router)


@app.get("/")
async def root():
    return {"message": "智能公募基金系统 API", "docs": "/docs"}