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 {getToken} from '@/utils/auth' // get token from cookie
  import getPageTitle from '@/utils/get-page-title'
  
  NProgress.configure({showSpinner: false}); // NProgress Configuration
  
  const whiteList = ['/login', '/auth-redirect']; // no redirect whitelist
  
  router.beforeEach(async (to, from, next) => {
    // start progress bar
    NProgress.start();
  
    // set page title
    document.title = getPageTitle(to.meta.title)
  
    // determine whether the user has logged in
    const hasToken = getToken();
  
    if (hasToken) {
      if (to.path === '/login') {
        // if is logged in, redirect to the home page
        next({path: '/'});
        NProgress.done()
      } else {
        // determine whether the user has obtained his permission roles through getInfo
        const hasRoles = store.getters.roles && store.getters.roles.length > 0
        if (hasRoles) {
          next()
        } else {
          try {
            // get user info
            // note: roles must be a object array! such as: ['admin'] or ,['developer','editor']
            const {roles} = await store.dispatch('user/getInfo');
            // 根据roles权限生成可访问的路由表
            const accessRoutes = await store.dispatch('permission/generateRoutes', roles);
            // console.log(roles, 'accessRoutes=====', accessRoutes)
  
            router.addRoutes(accessRoutes)
  
            // hack method to ensure that addRoutes is complete
            // set the replace: true, so the navigation will not leave a history record
            next({...to, replace: true})
          } catch (error) {
            // remove token and go to login page to re-login
            await store.dispatch('user/resetToken');
            Message.error(error || 'Has Error');
            next(`/login?redirect=${to.path}`);
            NProgress.done()
          }
        }
      }
    } else {
      /* has no token*/
  
      if (whiteList.indexOf(to.path) !== -1) {
        // in the free login whitelist, go directly
        next()
      } else {
        // other pages that do not have permission to access are redirected to the login page.
        next(`/login?redirect=${to.path}`)
        NProgress.done()
      }
    }
  })
  
  router.afterEach(() => {
    // finish progress bar
    NProgress.done()
  })
  