<template>
  <div class="app-container">
    <!--工具栏-->
    <div class="head-container">
      <div v-if="crud.props.searchToggle">
        <!-- 搜索 -->
        <el-input
          v-model="query.blurry"
          clearable
          size="mini"
          placeholder="模糊搜索"
          style="width: 200px;"
          class="filter-item"
          @keyup.enter.native="crud.toQuery"
        />
        <rrOperation />
      </div>
      <crudOperation :permission="permission" />
    </div>
    <!--表单渲染-->
    <el-dialog
      append-to-body
      :close-on-click-modal="false"
      :before-close="crud.cancelCU"
      :visible.sync="crud.status.cu > 0"
      :title="crud.status.title"
      width="650px"
    >
      <el-form ref="form" :inline="true" :model="form" :rules="rules" size="mini" label-width="80px">
        <el-form-item label="菜单类型" prop="type">
          <el-radio-group v-model="form.type" size="mini">
            <el-radio-button label="1">系统</el-radio-button>
            <el-radio-button label="2">目录</el-radio-button>
            <el-radio-button label="3">菜单</el-radio-button>
            <el-radio-button label="4">按钮</el-radio-button>
          </el-radio-group>
        </el-form-item>
        <el-form-item v-show="form.type.toString() !== '1' && form.type.toString() !== '4' " label="菜单图标" prop="icon">
          <el-popover
            placement="bottom-start"
            width="450"
            trigger="click"
            @show="$refs['iconSelect'].reset()"
          >
            <IconSelect ref="iconSelect" @selected="selected" />
            <el-input slot="reference" v-model="form.icon" style="width: 450px;" placeholder="点击选择图标" readonly>
              <svg-icon
                v-if="form.icon"
                slot="prefix"
                :icon-class="form.icon"
                class="el-input__icon"
                style="height: 32px;width: 16px;"
              />
              <i v-else slot="prefix" class="el-icon-search el-input__icon" />
            </el-input>
          </el-popover>
        </el-form-item>
        <el-form-item v-show="form.type.toString() !== '2' && form.type.toString() !== '1'" label="外链菜单" prop="iframe">
          <el-radio-group v-model="form.iframe" size="mini">
            <el-radio-button label="1">是</el-radio-button>
            <el-radio-button label="0">否</el-radio-button>
          </el-radio-group>
        </el-form-item>
        <el-form-item v-show="form.type.toString() === '2'" label="菜单缓存" prop="cache">
          <el-radio-group v-model="form.cache" size="mini">
            <el-radio-button label="1">是</el-radio-button>
            <el-radio-button label="0">否</el-radio-button>
          </el-radio-group>
        </el-form-item>
        <el-form-item v-show="form.type.toString() !== '2' && form.type.toString() !== '1' " label="菜单可见" prop="hidden">
          <el-radio-group v-model="form.hidden" size="mini">
            <el-radio-button label="1">是</el-radio-button>
            <el-radio-button label="0">否</el-radio-button>
          </el-radio-group>
        </el-form-item>
        <el-form-item v-if="form.type.toString() !== '2'" label="菜单标题" prop="title">
          <el-input
            v-model="form.title"
            :style=" form.type.toString() === '0' ? 'width: 450px' : 'width: 190px'"
            placeholder="菜单标题"
          />
        </el-form-item>
        <el-form-item v-if="form.type.toString() === '2'" label="按钮名称" prop="title">
          <el-input v-model="form.title" placeholder="按钮名称" style="width: 190px;" />
        </el-form-item>
        <el-form-item v-show="form.type.toString() !== '1' " label="权限标识" prop="permission">
          <el-input v-model="form.permission" :disabled="form.iframe=='1'" placeholder="权限标识" style="width: 190px;" />
        </el-form-item>
        <el-form-item v-if="form.type.toString() !== '1' && form.type.toString() !== '2'" label="路由地址" prop="path">
          <el-input v-model="form.path" placeholder="路由地址" style="width: 190px;" />
        </el-form-item>
        <el-form-item label="菜单排序" prop="menu_sort">
          <el-input-number
            v-model.number="form.menu_sort"
            :min="0"
            :max="999"
            controls-position="right"
            style="width: 190px;"
          />
        </el-form-item>
        <el-form-item v-show="!form.iframe && form.type.toString() === '3' " label="组件名称" prop="componentName">
          <el-input v-model="form.componentName" style="width: 190px;" placeholder="匹配组件内Name字段" />
        </el-form-item>
        <el-form-item v-show="!form.iframe && (form.type.toString() === '2' ||form.type.toString() === '3' ) " label="组件路径" prop="component">
          <el-input v-model="form.component" style="width: 190px;" placeholder="组件路径" />
        </el-form-item>
        <el-form-item label="上级类目" prop="pid">
          <!--         normalizer转换-  loadMenus 点击扩展的时候会调用该方法-->
          <treeselect
            v-model="form.pid"
            :options="menus"
            :load-options="loadMenus"
            :normalizer="normalizer"
            style="width: 450px;"
            placeholder="选择上级类目"
          />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="text" @click="crud.cancelCU">取消</el-button>
        <el-button :loading="crud.status.cu === 2" type="primary" @click="crud.submitCU">确认</el-button>
      </div>
    </el-dialog>
    <!--表格渲染-->
    <el-table
      ref="table"
      v-loading="crud.loading"
      lazy
      :load="getMenus"
      :auto-load-root-options="false"
      :data="crud.data"
      :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
      row-key="menu_id"

      @select="crud.selectChange"
      @select-all="crud.selectAllChange"
      @selection-change="crud.selectionChangeHandler"
    >
      <el-table-column type="selection" width="55" />
      <el-table-column label="菜单标题" prop="title" :min-width="flexWidth('title',crud.data,'菜单标题')" />
      <el-table-column label="子系统" prop="system_type" :min-width="flexWidth('system_type',crud.data,'子系统')" />
      <el-table-column prop="icon" label="图标" align="center" :min-width="flexWidth('icon',crud.data,'图标')">
        <template slot-scope="scope">
          <svg-icon :icon-class="scope.row.icon ? scope.row.icon : ''" />
        </template>
      </el-table-column>
      <el-table-column prop="menu_sort" align="center" label="排序" :min-width="flexWidth('menu_sort',crud.data,'排序')">
        <template slot-scope="scope">
          {{ scope.row.menu_sort }}
        </template>
      </el-table-column>
      <el-table-column prop="permission" label="权限标识" :min-width="flexWidth('permission',crud.data,'权限标识')" />
      <el-table-column prop="component" label="组件路径" min-width="120" />
      <el-table-column prop="iframe" label="外链" :formatter="crud.formatIsOrNot" :min-width="flexWidth('iframe',crud.data,'外链')" />

      <el-table-column prop="cache" label="缓存" :formatter="crud.formatIsOrNot" :min-width="flexWidth('cache',crud.data,'缓存')" />
      <el-table-column prop="hidden" label="可见" :formatter="crud.formatIsOrNot" :min-width="flexWidth('hidden',crud.data,'可见')" />
      <el-table-column prop="createTime" label="创建日期" :min-width="flexWidth('createTime',crud.data,'创建日期')" />
      <el-table-column
        v-permission="['admin','menu:edit','menu:del']"
        label="操作"
        width="130px"
        align="center"
        fixed="right"
      >
        <template slot-scope="scope">
          <udOperation
            :data="scope.row"
            :permission="permission"
            msg="确定删除吗,如果存在下级节点则一并删除，此操作不能撤销！"
          />
        </template>
      </el-table-column>
    </el-table>
  </div>
</template>

<script>
import crudMenu from '../menu'
import IconSelect from '@/components/IconSelect'
import Treeselect from '@riophae/vue-treeselect'
import '@riophae/vue-treeselect/dist/vue-treeselect.css'
import { LOAD_CHILDREN_OPTIONS } from '@riophae/vue-treeselect'
import CRUD, { presenter, header, form, crud } from '@crud/crud'
import rrOperation from '@crud/RR.operation'
import crudOperation from '@crud/CRUD.operation'
import udOperation from '@crud/UD.operation'

// crud交由presenter持有
const defaultForm = {
  menu_id: null,
  title: null,
  menu_sort: 999,
  path: null,
  system_type: null,
  category: null,
  component: null,
  componentName: null,
  iframe: 0,
  roles: [],
  pid: 0,
  icon: null,
  cache: 0,
  hidden: 0,
  type: 0,
  permission: null
}
export default {
  name: 'Menu',
  components: { Treeselect, IconSelect, crudOperation, rrOperation, udOperation },
  cruds() {
    return CRUD({ title: '菜单', idField: 'menu_id', url: 'api/sysMenu', crudMethod: { ...crudMenu }})
  },
  mixins: [presenter(), header(), form(defaultForm), crud()],
  data() {
    return {
      menus: [],
      permission: {
        add: ['admin', 'menu:add'],
        edit: ['admin', 'menu:edit'],
        del: ['admin', 'menu:del']
      },
      normalizer(node) {
        return {
          id: node.menu_id,
          label: node.title,
          children: node.children
        }
      },
      rules: {
        title: [
          { required: true, message: '请输入标题', trigger: 'blur' }
        ],
        path: [
          { required: true, message: '请输入地址', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 新增与编辑前做的操作
    [CRUD.HOOK.afterToCU](crud, form) {
      this.menus = []
      if (form.menu_id) { // 修改
        if (!form.pid) { // 一级菜单，一级的父级菜单的pid为0.
          form.pid = 0
        }
        this.getSupDepts(form.menu_id)
      } else { // 新增
        this.menus.push({ menu_id: 0, title: '顶级类目', children: null })
      }
    },
    getMenus(tree, treeNode, resolve) {
      const params = { pid: tree.menu_id }
      setTimeout(() => {
        crudMenu.getMenus(params).then(res => {
          resolve(res.content)
        })
      }, 100)
    },
    getSupDepts(menu_id) {
      crudMenu.getMenuSuperior(menu_id).then(res => {
        const children = res.map(function(obj) {
          if (!obj.leaf && !obj.children) {
            obj.children = null
          }
          return obj
        })
        this.menus = [{ menu_id: 0, title: '顶级类目', children: children }]
      })
    },
    loadMenus({ action, parentNode, callback }) {
      if (action === LOAD_CHILDREN_OPTIONS) {
        crudMenu.getMenusTree(parentNode.menu_id).then(res => {
          parentNode.children = res.map(function(obj) {
            if (!obj.leaf) {
              obj.children = null
            }
            return obj
          })
          setTimeout(() => {
            callback()
          }, 100)
        })
      }
    },
    // 选中图标
    selected(name) {
      this.form.icon = name
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
::v-deep .el-input-number .el-input__inner {
  text-align: left;
}

::v-deep .vue-treeselect__control, ::v-deep .vue-treeselect__placeholder, ::v-deep .vue-treeselect__single-value {
  height: 30px;
  line-height: 30px;
}
</style>
