from fastapi import FastAPI, Request

from core.cache import cache
from core.constant import CacheNameConstant
from core.current_user import CurrentUserProvider
from utils import JwtUtil, logger


def add_auth_middleware(app: FastAPI):
    """
    添加认证中间件
    优化用户上下文管理，减少全局状态依赖
    """

    @app.middleware("http")
    async def middleware(request: Request, call_next):
        token = JwtUtil.get_token_from_request(request)
        try:
            if token:
                payload = JwtUtil.verify_token(token)
                user_id = payload["user_id"]
                token_cache = await cache.get(
                    CacheNameConstant.AUTHORIZATION_TOKEN, user_id
                )

                if token_cache and token_cache == token:
                    request.state.user_id = user_id
                    await CurrentUserProvider.set_current_user(user_id)
                else:
                    logger.error(f"token缓存不一致")
        except Exception as e:
            logger.error(f"认证失败,{str(e)}")

        response = await call_next(request)
        return response