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 '@/static/utils/auth' // get token from cookie
import getPageTitle from '@/static/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login', '/bizLogin'] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
    console.log('beforeEach')
    // console.log('to, from, next', to, from, next)
    // start progress bar
    NProgress.start()

    // set page title
    document.title = getPageTitle(to.meta.title)
    // console.log('title', document.title)

    // determine whether the user has logged in
    const hasToken = getToken()
    // console.log('token', hasToken)

    if (hasToken) {
        console.log('to.path', to.path)
        if (to.path === '/login') {
            // if is logged in, redirect to the home page
            next({ path: '/' })
            NProgress.done()
        } else {
            const hasGetUserInfo = store.getters.name
            // console.log('hasGetUserInfo', hasGetUserInfo)
            if (hasGetUserInfo) {
                next()
            } else {
                try {
                    store.dispatch('user/GetUserInfo').then(res => { // 拉取user_info
                        const perms = res.perms // note: perms must be a array! such as: ['GET /aaa','POST /bbb']
                        // console.log('perms', perms)
                        if (perms) {
                            store.dispatch('GenerateRoutes', perms).then(() => { // 根据perms权限生成可访问的路由表
                                // console.log('_addRouters')
                                router.addRoutes(store.getters.addRouters) // 动态添加可访问路由表
                                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 => { console.log(err + 'store.dispatchuser/GetUserInfo 报错') })
                } catch (error) {
                    // remove token and go to login page to re-login
                    console.log('_loginError')
                    await store.dispatch('user/resetToken')
                    Message.error(error || 'Has Error')
                    next(`/login`)
                    NProgress.done()
                }
            }
        }
    } else {
        /* has no token*/
        // console.log('whiteList', whiteList)
        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`)
            // next(`/bizLogin?redirect=${to.path}`)
            NProgress.done()
        }
    }
})

router.afterEach(() => {
    console.log('afterEach')
    // finish progress bar
    NProgress.done()
})