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 {
  getUserId,
  getToken
} from '@/utils/auth' // get token from cookie
import {
  adminBuild
} from '@/api/user.js'
import { filterAsyncRouter } from '@/store/modules/permission.js'
import getPageTitle from '@/utils/get-page-title'

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

const whiteList = ['/login'] // no redirect whitelist
let isFirstLoad = true;

router.beforeEach(async (to, from, next) => {
		 if (isFirstLoad) {
		    let urlPart = window.location.href;
		    const queryIndex = urlPart.indexOf('?');
		    console.log(queryIndex, 'queryIndexqueryIndexqueryIndex');
		    if (queryIndex === -1) {
		      
		    } else {
		      const queryString = urlPart.slice(queryIndex + 1);
		      const paramPairs = queryString.split('&');
		      let idValue = null;
		      let tokenValue = null;
		
		      paramPairs.forEach(pair => {
		        const [key, value] = pair.split('=');
		        if (key === 'code') {
		          idValue = value;
		        }
		      });
		
		      localStorage.setItem("code", idValue);
		    }
		    isFirstLoad = false;
		  }
	
  // 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) {
	  console.log(to.path,'path')
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({
        path: '/'
      })
      NProgress.done()
    } else {
      if (store.getters.routers.length === 0) { // 条件加载
        loadMenus(next, to)

        store.commit('SET_LOAD', true)
      } else if (!store.getters.hasLoad) { // 是否加载过动态路由
        // // 修改hasLoad为false，防止死循环

        store.commit('SET_LOAD', true)
        loadMenus(next, to)
      } else {
        try {
          next()
        } catch (error) {
          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) {
      
      console.log('no token')
      next()
    } else {
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

export const loadMenus = (next, to) => {
  adminBuild({ platformUserId: getUserId() }).then(res => {
    const asyncRouter = filterAsyncRouter(res.data)
    // 画布设置
    asyncRouter.forEach(item => {
      if (item.path.indexOf('.html') !== -1) {
        item.path = item.path + '?' + getToken()
      }
    })
    // 异常跳转添加
    asyncRouter.push({ path: '*', redirect: '/404', hidden: true })
    store.dispatch('GenerateRoutes', asyncRouter).then(() => { // 存储路由
      router.addRoutes(asyncRouter) // 动态添加可访问路由表
      next({ ...to, replace: true })
    })
  })
}

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