import { createRouter, createWebHistory } from 'vue-router'
import { useAuthStore } from '@/stores/auth'
import HomeView from '../views/HomeView.vue'
import LoginView from '../views/LoginView.vue'
import ProfileView from '../views/ProfileView.vue'
import StudentView from '../views/StudentView.vue'
import SubjectView from '../views/SubjectView.vue'
import TermView from '../views/TermView.vue'
import TaskView from '../views/TaskView.vue'

const router = createRouter({
  history: createWebHistory(import.meta.env.BASE_URL),
  routes: [
    {
      path: '/',
      name: 'home',
      component: HomeView,
      meta: {
        requiresAuth: true,
        layout: 'default',
        title: 'Home',
        breadcrumb: {
          key: 'navigation.breadcrumb.home',
          icon: 'mdi-home'
        }
      },
    },
    {
      path: '/login',
      name: 'login',
      component: LoginView,
      meta: { requiresAuth: false, layout: 'none' },
    },
    {
      path: '/profile',
      name: 'profile',
      component: ProfileView,
      meta: {
        requiresAuth: true,
        layout: 'default',
        title: 'Profile',
        breadcrumb: {
          key: 'navigation.breadcrumb.profile'
        },
        breadcrumbPath: [
          { key: 'navigation.breadcrumb.home', to: '/', disabled: false },
          { key: 'navigation.breadcrumb.profile', to: '/profile', disabled: true }
        ]
      },
    },
    {
      path: '/master-data/students',
      name: 'students',
      component: StudentView,
      meta: {
        requiresAuth: true,
        layout: 'default',
        title: 'Students',
        breadcrumb: {
          key: 'navigation.breadcrumb.students'
        },
        breadcrumbPath: [
          { key: 'navigation.breadcrumb.home', to: '/', disabled: false },
          { key: 'navigation.breadcrumb.masterData', to: null, disabled: true },
          { key: 'navigation.breadcrumb.students', to: '/master-data/students', disabled: true }
        ]
      },
    },
    {
      path: '/master-data/subjects',
      name: 'subjects',
      component: SubjectView,
      meta: {
        requiresAuth: true,
        layout: 'default',
        title: 'Subjects',
        breadcrumb: {
          key: 'navigation.breadcrumb.subjects'
        },
        breadcrumbPath: [
          { key: 'navigation.breadcrumb.home', to: '/', disabled: false },
          { key: 'navigation.breadcrumb.masterData', to: null, disabled: true },
          { key: 'navigation.breadcrumb.subjects', to: '/master-data/subjects', disabled: true }
        ]
      },
    },
    {
      path: '/master-data/terms',
      name: 'terms',
      component: TermView,
      meta: {
        requiresAuth: true,
        layout: 'default',
        title: 'Terms',
        breadcrumb: {
          key: 'navigation.breadcrumb.terms'
        },
        breadcrumbPath: [
          { key: 'navigation.breadcrumb.home', to: '/', disabled: false },
          { key: 'navigation.breadcrumb.masterData', to: null, disabled: true },
          { key: 'navigation.breadcrumb.terms', to: '/master-data/terms', disabled: true }
        ]
      },
    },
    {
      path: '/tasks',
      name: 'tasks',
      component: TaskView,
      meta: {
        requiresAuth: true,
        layout: 'default',
        title: 'Tasks',
        breadcrumb: {
          key: 'navigation.breadcrumb.tasks'
        },
        breadcrumbPath: [
          { key: 'navigation.breadcrumb.home', to: '/', disabled: false },
          { key: 'navigation.breadcrumb.tasks', to: '/tasks', disabled: true }
        ]
      },
    },
    {
      path: '/:pathMatch(.*)*',
      redirect: '/',
    },
  ],
})

// 路由守卫
router.beforeEach(async (to, from, next) => {
  const authStore = useAuthStore()
  const isAuthed = authStore.isAuthenticated

  if (to.meta.requiresAuth && !isAuthed) {
    next('/login')
    return
  }

  // 只有已认证用户才尝试刷新token，且不在/login页面
  if (
    to.meta.requiresAuth &&
    to.path !== '/login' &&
    isAuthed &&
    authStore.isAccessTokenExpiringSoon &&
    authStore.isAccessTokenExpiringSoon()
  ) {
    try {
      await authStore.refreshAccessToken()
    } catch {
      // 刷新失败，清理token并跳转到登录
      if (authStore.logout) authStore.logout()
      next('/login')
      return
    }
  }

  if (to.path === '/login' && isAuthed) {
    next('/')
    return
  }

  next()
})

export default router