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

const routes = [
  {
    path: '/login',
    name: 'Login',
    component: () => import('@/views/Login.vue'),
  },
  {
    path: '/',
    component: () => import('@/views/Layout.vue'),
    redirect: '/dashboard',
    children: [
      {
        path: 'dashboard',
        name: 'Dashboard',
        component: () => import('@/views/Dashboard.vue'),
        meta: { title: '仪表盘' },
      },
      {
        path: 'devices',
        name: 'Devices',
        component: () => import('@/views/Devices.vue'),
        meta: { title: '设备列表' },
      },
      {
        path: 'alerts',
        name: 'Alerts',
        component: () => import('@/views/Alerts.vue'),
        meta: { title: '告警记录' },
      },
      {
        path: 'stats',
        name: 'Stats',
        component: () => import('@/views/Stats.vue'),
        meta: { title: '统计分析' },
      },
      {
        path: 'settings',
        name: 'Settings',
        component: () => import('@/views/Settings.vue'),
        meta: { title: '系统设置', adminOnly: true },
      },
    ],
  },
]

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

// 默认运行在内网免登录模式；需要 Casdoor 时构建时设置 VITE_AUTH_ENABLED=true。
const authEnabled = import.meta.env.VITE_AUTH_ENABLED === 'true'

router.beforeEach((to, from, next) => {
  if (!authEnabled) {
    if (to.name === 'Login') {
      next({ name: 'Dashboard' })
    } else {
      next()
    }
    return
  }

  const token = localStorage.getItem('token')
  if (to.name !== 'Login' && !token) {
    next({ name: 'Login' })
  } else {
    next()
  }
})

export default router