<template>
  <aside class="site-sidebar" :class="'site-sidebar--' + sidebarLayoutSkin">
    <div class="site-sidebar__inner">
      <el-menu
        :default-active="menuActiveName || 'home'"
        :collapse="sidebarFold"
        :collapseTransition="false"
        class="site-sidebar__menu">
        <el-input v-show="showSearchInput" class="search-input" v-model="keyWord" style="width" placeholder="快速搜索菜单"></el-input>
        <el-menu-item index="home" @click="$router.push({ name: 'home' })">
          <icon-svg name="shouye" class="site-sidebar__menu-icon"></icon-svg>
          <span slot="title">首页</span>
        </el-menu-item>
        <!-- <el-submenu index="demo">
          <template slot="title">
            <icon-svg name="shoucang" class="site-sidebar__menu-icon"></icon-svg>
            <span>demo</span>
          </template>
          <el-menu-item index="demo-echarts" @click="$router.push({ name: 'demo-echarts' })">
            <icon-svg name="tubiao" class="site-sidebar__menu-icon"></icon-svg>
            <span slot="title">echarts</span>
          </el-menu-item>
          <el-menu-item index="demo-ueditor" @click="$router.push({ name: 'demo-ueditor' })">
            <icon-svg name="editor" class="site-sidebar__menu-icon"></icon-svg>
            <span slot="title">ueditor</span>
          </el-menu-item>
        </el-submenu> -->
        <sub-menu
          v-for="menu in filterMenu"
          :key="menu.menuId"
          :menu="menu"
          :dynamicMenuRoutes="dynamicMenuRoutes">
        </sub-menu>
      </el-menu>
    </div>
  </aside>
</template>

<script>
  import SubMenu from './main-sidebar-sub-menu'
  import { isURL } from '@/utils/validate'
  export default {
    data () {
      return {
        dynamicMenuRoutes: [],
        //菜单搜索关键词
        keyWord:""
      }
    },
    components: {
      SubMenu
    },
    computed: {
      sidebarLayoutSkin: {
        get () { return this.$store.state.common.sidebarLayoutSkin }
      },
      sidebarFold: {
        get () { return this.$store.state.common.sidebarFold }
      },
      menuList: {
        get () { return this.$store.state.common.menuList },
        set (val) { this.$store.commit('common/updateMenuList', val) }
      },
      menuActiveName: {
        get () { return this.$store.state.common.menuActiveName },
        set (val) { this.$store.commit('common/updateMenuActiveName', val) }
      },
      mainTabs: {
        get () { return this.$store.state.common.mainTabs },
        set (val) { this.$store.commit('common/updateMainTabs', val) }
      },
      mainTabsActiveName: {
        get () { return this.$store.state.common.mainTabsActiveName },
        set (val) { this.$store.commit('common/updateMainTabsActiveName', val) }
      },
      //过滤后的菜单
      filterMenu(){
        //过滤的方法
        const filterMethod=(list,keyWord)=>{
          return list.filter(function f(item){
            if(item.name.includes(keyWord)) return true;
            if(item.list&&item.list.length>0){
              //此处的目的是至展示有的菜单
              return (item.list=item.list.filter(f)).length
            }
          })
        }
        let filterMenu=filterMethod(JSON.parse(JSON.stringify(this.menuList)),this.keyWord);
        console.log(filterMenu);
        return filterMenu;
      },
      //是否展示菜单搜索界面
      showSearchInput(){
        return this.$store.state.common.sidebarFold==false
      }
    },
    watch: {
      $route: 'routeHandle'
    },
    created () {
      this.menuList = JSON.parse(sessionStorage.getItem('menuList') || '[]')
      this.dynamicMenuRoutes = JSON.parse(sessionStorage.getItem('dynamicMenuRoutes') || '[]')
      this.routeHandle(this.$route)
    },
    methods: {
      // 路由操作
      routeHandle (route) {
        if (route.meta.isTab) {
          // tab选中, 不存在先添加
          var tab = this.mainTabs.filter(item => item.name === route.name)[0]
          if (!tab) {
            if (route.meta.isDynamic) {
              route = this.dynamicMenuRoutes.filter(item => item.name === route.name)[0]
              if (!route) {
                return console.error('未能找到可用标签页!')
              }
            }
            tab = {
              menuId: route.meta.menuId || route.name,
              name: route.name,
              title: route.meta.title,
              type: route.meta.isMicroApp?'microApp' : (isURL(route.meta.iframeUrl) ? 'iframe' : 'module'),
              iframeUrl: route.meta.iframeUrl || '',
              params: route.params,
              query: route.query
            }
            this.mainTabs = this.mainTabs.concat(tab)
          }
          this.menuActiveName = tab.menuId + ''
          this.mainTabsActiveName = tab.name
        }
      }
    }
  }
</script>
<style lang="scss" scoped>
.search-input{
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 99;
  padding: 10px 15px 0 15px;
}
</style>
