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import router from './router'
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import store from './store'
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import { Message } from 'element-ui'
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import NProgress from 'nprogress' // progress bar
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import 'nprogress/nprogress.css' // progress bar style
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import { getToken } from '@/utils/auth' // get token from cookie
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import getPageTitle from '@/utils/get-page-title'
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NProgress.configure({ showSpinner: false }) // NProgress Configuration
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const whiteList = ['/menu','/login', '/auth-redirect'] // no redirect whitelist
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export function flatRoutes(routes) {
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let ret = [];
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routes.forEach(it => {
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const r = {...it, children: []};
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it.children.forEach(it2 => {
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// 把三级移动到二级,以避免keep-alive无法缓存多级路由的状态
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if (it2.children && it2.children.length > 0) {
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it2.children.forEach(it3 => r.children.push({...it3, children: null}));
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return;
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}
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// 直接添加二级路由
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r.children.push({...it2, children: null});
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});
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ret.push(r);
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});
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return ret;
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}
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router.beforeEach(async(to, from, next) => {
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// start progress bar
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NProgress.start()
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// set page title
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document.title = getPageTitle(to.meta.title)
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// determine whether the user has logged in
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const hasToken = getToken()
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if (hasToken) {
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if (to.path === '/login') {
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// if is logged in, redirect to the home page
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next({ path: '/' })
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NProgress.done() // hack: https://github.com/PanJiaChen/vue-element-admin/pull/2939
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} else {
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// determine whether the user has obtained his permission roles through getInfo
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const hasRoles = store.getters.roles && store.getters.roles.length > 0
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if (hasRoles) {
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next()
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} else {
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// next()
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try {
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// get user info
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// note: roles must be a object array! such as: ['admin'] or ,['developer','editor']
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// const { roles } = await store.dispatch('user/getInfo')
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const {menu} = await store.dispatch('user/getInfo')
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if (menu.length === 0) {
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throw new Error('没有任何菜单信息！getInfo')
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}
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// generate accessible routes map based on roles
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// console.log(roles)
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// const accessRoutes = await store.dispatch('permission/generateRoutes', roles)
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let accessRoutes = await store.dispatch('permission/generateRoutes', menu)
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accessRoutes = flatRoutes(accessRoutes);
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// dynamically add accessible routes
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router.addRoutes(accessRoutes)
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// hack method to ensure that addRoutes is complete
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// set the replace: true, so the navigation will not leave a history record
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next({ ...to, replace: true })
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} catch (error) {
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// remove token and go to login page to re-login
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await store.dispatch('user/resetToken')
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Message.error(error || 'Has Error')
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next(`/menu?redirect=${to.path}`)
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NProgress.done()
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}
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}
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}
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} else {
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/* has no token*/
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if (whiteList.indexOf(to.path) !== -1) {
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// in the free login whitelist, go directly
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next()
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} else {
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// other pages that do not have permission to access are redirected to the login page.
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next(`/menu?redirect=${to.path}`)
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NProgress.done()
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}
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}
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})
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router.afterEach(() => {
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// finish progress bar
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NProgress.done()
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})
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