// middleware/auth.ts
import { useAuthStore } from '~/stores/user';
// import redis from '~/utils/redis';
// import { getCookie } from '@/utils/cookie'

export default defineNuxtRouteMiddleware((to, from) => {

  console.error("环境：需要权限", to.meta.requiresAuth, "isServer:", import.meta.server, "isClient:", import.meta.client, "路径：", to.fullPath);
  let token = '';
  let isAuthed = false;
  let requiresAuth = to.meta.requiresAuth;
  // const authStore = useAuthStore();
  // 初始化认证状态
  // authStore.initializeAuth();
  // const isAuthed = authStore.isAuthenticated;
  if (import.meta.client) {
    const authStore = useAuthStore();
    authStore.initializeAuth();
    token = authStore.token;
    isAuthed = authStore.isAuthenticated;
    console.log("client 获取 token", token, isAuthed);
  };
  // // 白名单：无需验证的路由（如登录页、注册页）
  // const whiteList = ['/login', '/register'];
  // if (whiteList.includes(to.path)) return; // 放行白名单
  // 检查路由是否需要验证
  // const requiresAuth = to.meta.requiresAuth;

  // TODO 通过后台验证token的有效性

  if (import.meta.server) {
    const headers = useRequestHeaders(['cookie']);
    const tokenPair = headers.cookie?.split(';').find(item => item.trim().startsWith('token='));
    token = tokenPair ? tokenPair.split('=')[1] : '';
    if (token) {
      isAuthed = true;
    }
    // const response = useResponse(); 
    console.log("server 授权信息：", tokenPair);
  };


  //   await new Promise<void>(resolve => {
  //     const check = () => {
  //       if (authStore.isInitialized) {
  //         resolve();
  //       } else {
  //         authStore.initializeAuth();
  //         setTimeout(check, 50);
  //       }
  //     };
  //     check();
  //   });

  //   console.log("import.meta.server", headers.cookie);

  // // 解析 cookie 并获取 token
  // const cookies = headers.cookie.split(';').reduce((acc, cookie) => {
  //   const [key, value] = cookie.trim().split('=');
  //   acc[key] = value;
  //   return acc;
  // }, {} as Record<string, string>);

  // if (cookies.token) {
  //   authStore.isAuthenticated = true;
  // }
  // if (requiresAuth && authStore.isAuthenticated) {
  //   return navigateTo(`/login?redirect=${encodeURIComponent(to.fullPath)}`);
  // }
  // const req = useRequestHeaders(['cookie']);
  // let tokenStr = '';
  // if (req.cookie) {
  //   tokenStr = req.cookie.split(';').find(c => c.trim().startsWith('token='));
  // }

  // let token = !!tokenStr?.split('=')[1];
  // console.log("验证权限获取到的token:", req, token);

  // console.log("授权验证：", requiresAuth, authStore.isAuthenticated, authStore.isInitialized);
  if (requiresAuth && !isAuthed) {
    console.log("跳转路径", to.fullPath);

    return navigateTo(`/login?redirect=${encodeURIComponent(to.fullPath)}`);
  }

  // // 如果用户已登录但访问的是登录页面
  if (to.path === '/login' && isAuthed) {
    console.log("跳转至首页");
    return navigateTo('/');
  }
}




  // if (!authStore.isInitialized) {
  //   await new Promise(resolve => setTimeout(resolve, 50));
  // };
  //   if (import.meta.client) {

  //   authStore.initializeAuth();
  //   console.log("访问的路径：", to.path, authStore.isAuthenticated);
  //   // 如果访问的是需要认证的页面且用户未登录
  //   if (requiresAuth && !authStore.isAuthenticated) {
  //     // if (requiresAuth) {
  //     console.log("访问的路径：", to.path);
  //     return navigateTo(`/login?redirect=${encodeURIComponent(to.fullPath)}`);
  //   }

  //   // 如果用户已登录但访问的是登录页面
  //   if (to.path === '/login') {
  //     return navigateTo('/');
  //   }
  // }
);