import { constantRoutes } from '@/router'
import { getRouters } from '@/api/system/menu'
import Layout from '@/layout/index'
import ParentView from '@/components/ParentView'
import InnerLink from '@/layout/components/InnerLink'
import cache from '@/plugins/cache'

// 匹配views里面所有的.vue文件
const modules = import.meta.glob('./../../views/**/*.vue')

const usePermissionStore = defineStore('permission', {
  state: () => ({
    routes: [],
    defaultRoutes: [],
    topbarRouters: [],
    sidebarRouters: [],
    commonlyUsedRoutes: [] //常用路由
  }),
  actions: {
    setRoutes(routes) {
      this.addRoutes = routes
      this.routes = constantRoutes.concat(routes)
    },
    setDefaultRoutes(routes) {
      this.defaultRoutes = constantRoutes.concat(routes)
    },
    setTopbarRoutes(routes) {
      this.topbarRouters = routes
    },
    setSidebarRouters(routes) {
      this.sidebarRouters = routes
    },
    // 生成路由
    generateRoutes() {
      return new Promise((resolve) => {
        // 向后端请求路由数据
        getRouters().then((res) => {
          const sdata = JSON.parse(JSON.stringify(res.data))
          const rdata = JSON.parse(JSON.stringify(res.data))
          const defaultData = JSON.parse(JSON.stringify(res.data))
          const sidebarRoutes = filterAsyncRouter(sdata)
          const rewriteRoutes = filterAsyncRouter(rdata, false, true)
          const defaultRoutes = filterAsyncRouter(defaultData)
          this.setRoutes(rewriteRoutes)
          this.setSidebarRouters(constantRoutes.concat(sidebarRoutes))
          this.setDefaultRoutes(sidebarRoutes)
          this.setTopbarRoutes(defaultRoutes)
          this.setCommonlyUsedRoutes()
          resolve(rewriteRoutes)
        })
      })
    },
    // 设置常用路由
    setCommonlyUsedRoutes() {
      var arraryObjectLocal = cache.local.getJSON('commonlyUseMenu') || []
      this.commonlyUsedRoutes = arraryObjectLocal
    },
    // 移除常用路由
    removeCommonlyUsedRoutes(item) {
      var routes = this.commonlyUsedRoutes

      const fi = routes.findIndex((v) => v.path === item.path)
      routes.splice(fi, 1)
      cache.local.setJSON('commonlyUseMenu', routes)
    }
  }
})

// 遍历后台传来的路由字符串，转换为组件对象
function filterAsyncRouter(asyncRouterMap, lastRouter = false, type = false) {
  return asyncRouterMap.filter((route) => {
    if (type && route.children) {
      route.children = filterChildren(route.children)
    }
    if (route.component) {
      // Layout ParentView 组件特殊处理
      if (route.component === 'Layout') {
        route.component = Layout
      } else if (route.component === 'ParentView') {
        route.component = ParentView
      } else if (route.component === 'InnerLink') {
        route.component = InnerLink
      } else {
        route.component = loadView(route.component)
      }
    }
    if (route.children != null && route.children && route.children.length) {
      route.children = filterAsyncRouter(route.children, route, type)
    } else {
      delete route['children']
      delete route['redirect']
    }
    return true
  })
}

function filterChildren(childrenMap, lastRouter = false) {
  var children = []
  childrenMap.forEach((el) => {
    el.path = lastRouter ? lastRouter.path + '/' + el.path : el.path
    if (el.children && el.children.length && el.component === 'ParentView') {
      children = children.concat(filterChildren(el.children, el))
    } else {
      children.push(el)
    }
  })
  return children
}

export const loadView = (viewPath) => {
  const view = `../../views/${viewPath}.vue`

  if (modules[view]) {
    return modules[view]
  }

  // 返回404组件
  var path = import.meta.glob('../../views/error/404.vue')['../../views/error/404.vue']
  console.warn(`404组件${view}`)
  return path
}

export default usePermissionStore
