import { createRouter, createWebHistory } from 'vue-router'
import { useUserStore } from '@/stores/user'

const routes = [
  {
    path: '/login',
    name: 'Login',
    component: () => import('@/views/auth/Login.vue'),
    meta: { public: true },
  },
  {
    path: '/',
    name: 'Layout',
    component: () => import('@/components/Layout.vue'),
    redirect: '/dashboard',
    children: [
      {
        path: 'dashboard',
        name: 'Dashboard',
        component: () => import('@/views/dashboard/Dashboard.vue'),
        meta: { title: '首页', icon: 'HomeFilled', roles: ['superadmin', 'admin', 'project_manager', 'labeler', 'reviewer', 'guest'], keepAlive: true },
      },
      {
        path: 'datasource',
        name: 'DataSource',
        component: () => import('@/views/datasource/DataSource.vue'),
        meta: { title: '数据源管理', icon: 'DataLine', roles: ['superadmin', 'admin', 'project_manager', 'labeler', 'reviewer', 'guest'] },
      },
      {
        path: 'metadata',
        name: 'Metadata',
        component: () => import('@/views/metadata/Metadata.vue'),
        meta: { title: '数据资产', icon: 'FolderOpened', roles: ['superadmin', 'admin', 'project_manager', 'labeler', 'reviewer', 'guest'] },
      },
      {
        path: 'category',
        name: 'Category',
        component: () => import('@/views/category/Category.vue'),
        meta: { title: '分类分级标准', icon: 'Collection', roles: ['superadmin', 'admin', 'project_manager', 'labeler', 'reviewer', 'guest'] },
      },
      {
        path: 'project',
        name: 'Project',
        component: () => import('@/views/project/Project.vue'),
        meta: { title: '项目管理', icon: 'List', roles: ['superadmin', 'admin', 'project_manager'] },
      },
      {
        path: 'task',
        name: 'Task',
        component: () => import('@/views/task/Task.vue'),
        meta: { title: '我的任务', icon: 'EditPen', roles: ['superadmin', 'admin', 'project_manager', 'labeler', 'reviewer'] },
      },
      {
        path: 'classification',
        name: 'Classification',
        component: () => import('@/views/classification/Classification.vue'),
        meta: { title: '分类分级结果', icon: 'DocumentChecked', roles: ['superadmin', 'admin', 'project_manager', 'labeler', 'reviewer', 'guest'] },
      },
      {
        path: 'report',
        name: 'Report',
        component: () => import('@/views/report/Report.vue'),
        meta: { title: '报表统计', icon: 'TrendCharts', roles: ['superadmin', 'admin', 'project_manager'] },
      },
      {
        path: 'masking',
        name: 'Masking',
        component: () => import('@/views/masking/Masking.vue'),
        meta: { title: '数据脱敏', icon: 'Hide', roles: ['superadmin', 'admin', 'project_manager'] },
      },
      {
        path: 'watermark',
        name: 'Watermark',
        component: () => import('@/views/watermark/Watermark.vue'),
        meta: { title: '水印溯源', icon: 'Memo', roles: ['superadmin', 'admin', 'project_manager'] },
      },
      {
        path: 'unstructured',
        name: 'Unstructured',
        component: () => import('@/views/unstructured/Unstructured.vue'),
        meta: { title: '非结构化文件', icon: 'Document', roles: ['superadmin', 'admin', 'project_manager', 'labeler', 'reviewer', 'guest'] },
      },
      {
        path: 'schema-change',
        name: 'SchemaChange',
        component: () => import('@/views/schema_change/SchemaChange.vue'),
        meta: { title: 'Schema变更', icon: 'Refresh', roles: ['superadmin', 'admin', 'project_manager'] },
      },
      {
        path: 'compliance',
        name: 'Compliance',
        component: () => import('@/views/compliance/Compliance.vue'),
        meta: { title: '合规检查', icon: 'CircleCheck', roles: ['superadmin', 'admin', 'project_manager'] },
      },
      {
        path: 'lineage',
        name: 'Lineage',
        component: () => import('@/views/lineage/Lineage.vue'),
        meta: { title: '数据血缘', icon: 'Share', roles: ['superadmin', 'admin', 'project_manager'] },
      },
      {
        path: 'alerts',
        name: 'Alerts',
        component: () => import('@/views/alert/Alert.vue'),
        meta: { title: '告警与工单', icon: 'Warning', roles: ['superadmin', 'admin', 'project_manager'] },
      },
      {
        path: 'api-assets',
        name: 'ApiAssets',
        component: () => import('@/views/api_asset/APIAsset.vue'),
        meta: { title: 'API资产扫描', icon: 'Connection', roles: ['superadmin', 'admin', 'project_manager'] },
      },
      {
        path: 'system',
        name: 'System',
        component: () => import('@/views/system/System.vue'),
        meta: { title: '系统管理', icon: 'Setting', roles: ['superadmin', 'admin'] },
      },
    ],
  },
  {
    path: '/:pathMatch(.*)*',
    redirect: '/',
  },
]

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

router.beforeEach(async (to, from, next) => {
  const userStore = useUserStore()
  
  // Public routes (login)
  if (to.meta.public) {
    next()
    return
  }
  
  // Not logged in
  if (!userStore.token) {
    next('/login')
    return
  }

  if (!userStore.userInfo) {
    try {
      const userInfo = await userStore.fetchUserInfo()
      if (!userInfo) {
        userStore.logout()
        next('/login')
        return
      }
    } catch {
      next('/login')
      return
    }
  }
  
  // Check role permissions
  const allowedRoles = to.meta.roles as string[] | undefined
  if (allowedRoles && allowedRoles.length > 0) {
    const hasPermission = userStore.hasAnyRole(allowedRoles)
    if (!hasPermission) {
      next(to.path === '/dashboard' ? '/login' : '/dashboard')
      return
    }
  }
  
  next()
})

export default router