import { createRouter, createWebHistory } from 'vue-router'

const routes = [
  {
    path: '/login',
    name: 'Login',
    component: () => import('@/views/Login.vue'),
    meta: { title: '登录' },
  },
  {
    path: '/register',
    name: 'Register',
    component: () => import('@/views/Register.vue'),
    meta: { title: '注册' },
  },
  {
    path: '/',
    component: () => import('@/layouts/BlogLayout.vue'),
    children: [
      {
        path: '',
        name: 'AiAssistant',
        component: () => import('@/views/AiAssistant.vue'),
        meta: { title: 'AI 助手' },
      },
      {
        path: 'article/:id',
        name: 'ArticleDetail',
        component: () => import('@/views/ArticleDetail.vue'),
        meta: { title: '文章详情' },
      },
      {
        path: 'blog',
        name: 'Blog',
        component: () => import('@/views/Home.vue'),
        meta: { title: '博客' },
      },
    ],
  },
  {
    path: '/app',
    component: () => import('@/layouts/AppLayout.vue'),
    meta: { requiresAuth: true },
    children: [
      {
        path: 'dashboard',
        name: 'Dashboard',
        component: () => import('@/views/app/Dashboard.vue'),
        meta: { title: '控制台', requiresAuth: true },
      },
      {
        path: 'articles',
        name: 'MyArticles',
        component: () => import('@/views/app/MyArticles.vue'),
        meta: { title: '我的文章', requiresAuth: true },
      },
      {
        path: 'editor',
        name: 'NewArticle',
        component: () => import('@/views/app/ArticleEditor.vue'),
        meta: { title: '写文章', requiresAuth: true },
      },
      {
        path: 'editor/:id',
        name: 'EditArticle',
        component: () => import('@/views/app/ArticleEditor.vue'),
        meta: { title: '编辑文章', requiresAuth: true },
      },
    ],
  },
  {
    path: '/admin',
    component: () => import('@/layouts/AdminLayout.vue'),
    meta: { requiresAuth: true, requiresAdmin: true },
    children: [
      {
        path: '',
        name: 'AdminDashboard',
        component: () => import('@/views/admin/Dashboard.vue'),
        meta: { title: '管理后台', requiresAuth: true, requiresAdmin: true },
      },
      {
        path: 'users',
        name: 'AdminUsers',
        component: () => import('@/views/admin/Users.vue'),
        meta: { title: '用户管理', requiresAuth: true, requiresAdmin: true },
      },
      {
        path: 'articles',
        name: 'AdminArticles',
        component: () => import('@/views/admin/Articles.vue'),
        meta: { title: '文章管理', requiresAuth: true, requiresAdmin: true },
      },
      {
        path: 'comments',
        name: 'AdminComments',
        component: () => import('@/views/admin/Comments.vue'),
        meta: { title: '评论管理', requiresAuth: true, requiresAdmin: true },
      },
      {
        path: 'categories',
        name: 'AdminCategories',
        component: () => import('@/views/admin/Categories.vue'),
        meta: { title: '分类管理', requiresAuth: true, requiresAdmin: true },
      },
      {
        path: 'ai-models',
        name: 'AdminAiModels',
        component: () => import('@/views/admin/AiModels.vue'),
        meta: { title: 'AI 模型', requiresAuth: true, requiresAdmin: true },
      },
    ],
  },
]

const router = createRouter({
  history: createWebHistory(),
  routes,
})

router.beforeEach((to, from, next) => {
  document.title = to.meta.title ? `${to.meta.title} - 博客系统` : '博客系统'
  const token = localStorage.getItem('access_token')
  const userInfo = JSON.parse(localStorage.getItem('user_info') || 'null')
  if (to.meta.requiresAuth && !token) {
    next({ name: 'Login', query: { redirect: to.fullPath } })
  } else if (to.meta.requiresAdmin && userInfo?.role !== 'ADMIN') {
    next({ name: 'Blog' })
  } else {
    next()
  }
})

export default router