text: import { constantRoutes, generateRoutes } from '@/router'
  
  /**
   * 通过meta.role判断是否与当前用户权限匹配
   * @param roles
   * @param route
   */
  function hasPermission(roles, route) {
    if (route.meta && route.meta.roles) {
      return roles.some(role => route.meta.roles.includes(role))
    } else {
      return true
    }
  }
  
  /**
   * 递归过滤异步路由表，返回符合用户角色权限的路由表
   * @param routes asyncRoutes
   * @param roles
   */
  export function filterAsyncRoutes(routes, roles) {
    const res = []
  
    routes.forEach(route => {
      const tmp = { ...route }
      if (hasPermission(roles, tmp)) {
        if (tmp.children) {
          tmp.children = filterAsyncRoutes(tmp.children, roles)
        }
        res.push(tmp)
      }
    })
  
    return res
  }
  
  const state = {
    routes: [],
    // addRoutes: [],
    menus: [],
    buttons: []
  }
  
  const mutations = {
    SET_ROUTES: (state, routes) => {
      state.routes = constantRoutes.concat(routes)
    },
    SET_MENUS: (state, menus) => {
      state.menus = constantRoutes.concat(menus)
    },
    SET_BUTTONS: (state, buttons) => {
      state.buttons = buttons
    }
  }
  
  const actions = {
    generateRoutes({ commit }, menus) {
      return new Promise(resolve => {
        const accessedRoutes = []
        const accessedMenus = []
        const buttons = []
        generateRoutes(menus, accessedRoutes, accessedMenus, buttons)
        commit('SET_ROUTES', accessedRoutes)
        commit('SET_MENUS', accessedMenus)
        commit('SET_BUTTONS', buttons)
        resolve(accessedRoutes)
      })
    }
  }
  
  export default {
    namespaced: true,
    state,
    mutations,
    actions
  }
  