text: import router from './router'
  import store from './store'
  import { Message } from 'element-ui'
  import NProgress from 'nprogress' // progress bar
  import 'nprogress/nprogress.css'// progress bar style
  import { setTitle } from '@/utils/util'
  NProgress.configure({ showSpinner: false })// NProgress Configuration
  
  // permission judge function
  function hasPermission (roles, permissionRoles) {
    if (roles.indexOf('admin') >= 0) return true // admin permission passed directly
    if (!permissionRoles) return true
    return roles.some(role => permissionRoles.indexOf(role) >= 0)
  }
  
  const whiteList = ['/login', '/auth-redirect', '/404', '/401', '/500', '/lock']// no redirect whitelist
  
  router.beforeEach((to, from, next) => {
    NProgress.start() // start progress bar
    const value = to.query.src ? to.query.src : to.path
    const label = to.query.name ? to.query.name : to.name
    if (whiteList.indexOf(value) === -1) {
      store.commit('ADD_TAG', {
        label: label,
        value: value,
        query: to.query
      })
    }
    if (store.getters.access_token) { // determine if there has token
      if (to.path === '/login') {
        next({ path: '/' })
        NProgress.done()
      } else {
        const userInfo = store.getters.userInfo
        if (Object.keys(userInfo).length === 0) { // 判断当前用户是否已拉取完user_info信息
          store.dispatch('GetUserInfo').then(res => { // 拉取user_info
            next({ ...to, replace: true }) // hack方法 确保addRoutes已完成 ,set the replace: true so the navigation will not leave a history record
          }).catch((err) => {
            store.dispatch('FedLogOut').then(() => {
              Message.error(err || 'Verification failed, please login again')
              next({ path: '/' })
            })
          })
        } else {
          // 没有动态改变权限的需求可直接next() 删除下方权限判断 ↓
          if (hasPermission(store.getters.roles, to.meta.roles)) {
            next()
          } else {
            next({ path: '/401', replace: true, query: { noGoBack: true } })
          }
        }
      }
    } else {
      if (whiteList.indexOf(to.path) !== -1) { // 在免登录白名单，直接进入
        next()
      } else {
        next(`/login?redirect=dashboard`) // 否则全部重定向到登录页
        NProgress.done() // if current page is login will not trigger afterEach hook, so manually handle it
      }
    }
  })
  
  // 寻找子菜单的父类
  function findMenuParent (tag) {
    const tagCurrent = []
    tagCurrent.push(tag)
    return tagCurrent
  }
  
  router.afterEach(() => {
    NProgress.done() // 结束进度条
    setTimeout(() => {
      const tag = store.getters.tag
      setTitle(tag.label)
      store.commit('SET_TAG_CURRENT', findMenuParent(tag))
    }, 0)
  })
  