text: import Vue from 'vue';
  import Router from 'vue-router';
  
  // in development-env not use lazy-loading, because lazy-loading too many pages will cause webpack hot update too slow. so only in production use lazy-loading;
  // detail: https://panjiachen.github.io/vue-element-admin-site/#/lazy-loading
  
  Vue.use(Router);
  
  /* Layout */
  import Layout from '@/layout';
  
  /**
   * Note: sub-menu only appear when route children.length >= 1
   * Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html
   *
   * hidden: true                   if set true, item will not show in the sidebar(default is false)
   * alwaysShow: true               if set true, will always show the root menu
   *                                if not set alwaysShow, when item has more than one children route,
   *                                it will becomes nested mode, otherwise not show the root menu
   * redirect: noRedirect           if set noRedirect will no redirect in the breadcrumb
   * name:'router-name'             the name is used by <keep-alive> (must set!!!)
   * meta : {
      roles: ['admin','editor']    control the page roles (you can set multiple roles)
      title: 'title'               the name show in sidebar and breadcrumb (recommend set)
      icon: 'svg-name'             the icon show in the sidebar
      breadcrumb: false            if set false, the item will hidden in breadcrumb(default is true)
      activeMenu: '/example/list'  if set path, the sidebar will highlight the path you set
    }
   */
  export const constantRouters = [
    {
      path: '/login',
      component: () => import('@/views/login/index'),
      hidden: true
    },
    {
      path: '/404',
      component: () => import('@/views/404'),
      hidden: true
    },
  
    {
      path: '/',
      component: Layout,
      redirect: '/dashboard',
      children: [
        {
          path: 'dashboard',
          name: 'Dashboard',
          component: () => import('@/views/dashboard/index'),
          meta: { title: 'Dashboard', icon: 'dashboard' }
        }
      ]
    }
  ];
  
  export const asyncRouters = [
    {
      path: '/user',
      component: Layout,
      children: [
        {
          path: 'user',
          component: () => import('@/views/user/index'),
          name: 'User',
          resource: 'User',
          meta: {
            title: 'User'
          }
        }
      ]
    }
  ];
  
  const createRouter = () =>
    new Router({
      // mode: 'history', // require service support
      scrollBehavior: () => ({ y: 0 }),
      routes: constantRouters
    });
  
  const router = createRouter();
  
  // Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465
  export function resetRouter() {
    const newRouter = createRouter();
    router.matcher = newRouter.matcher; // reset router
  }
  
  export default router;
  