<template>
  <div class="menu">
    <div class="head clear-both">
      <el-button @click="add" plain type="success" style="float: right" v-if="!$store.state.readonly">新增菜单</el-button>
    </div>
    <el-table
      :data="menuList"
      style="width: 100%">
      <el-table-column
        prop="name"
        label="菜单名称">
      </el-table-column>
      <el-table-column
        prop="cover"
        label="菜单Code">
      </el-table-column>
      <el-table-column
        v-if="!$store.state.readonly"
        label="操作">
        <template slot-scope="scope">
          <el-button size="mini" plain type="primary" @click="edit(scope.row)">
            编辑
          </el-button>
          <el-button size="mini" type="danger" plain @click="del(scope.row)" v-if="$store.state.deletePermission">
            删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>
    <el-dialog
      :title="dialog.title"
      center
      append-to-body
      :visible.sync="dialog.show"
      width="30%">
      <el-form ref="form" :rules="dialog.rules" :model="dialog.form" label-width="100px">
        <el-form-item label="菜单名称" prop="name">
          <el-input v-model="dialog.form.name"></el-input>
        </el-form-item>
        <el-form-item label="菜单Code" prop="cover">
          <el-input v-model="dialog.form.cover"></el-input>
        </el-form-item>
        <el-form-item label="上级菜单" prop="cover">
          <el-select v-model="dialog.form.pid" placeholder="请选择">
            <el-option
              label="无"
              :value="0">
            </el-option>
            <el-option
              v-for="item in plist"
              :key="item.id"
              :label="item.name"
              :value="item.id">
            </el-option>
          </el-select>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialog.show = false">取 消</el-button>
        <el-button type="primary" @click="sub">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
  import {getMenuListApi,saveMenuApi,delMenuApi,updateMenuApi} from "../../service/api";

  export default {
    data(){
      return {
        nowPage:1,
        total:0,
        menuList:[],
        plist:[],
        dialog:{
          title:'新增菜单',
          show:false,
          rules: {
            name: [
              {required: true, message: '请填写菜单名称', trigger: 'change'},
            ],
            cover: [
              {required: true, message: '请填写菜单code', trigger: 'change'},
            ]
          },
          form:{
            id:'',
            name:'',
            cover:'',
            pid:0,
            type:2
          }
        },
      }
    },
    created(){
      this.getList()
    },
    methods:{
      getList(){
        getMenuListApi().then(res=>{
          if (res) {
            this.menuList = [];
            this.plist = [];
            res.forEach(i=>{
              this.menuList.push(i);
              this.plist.push(i);
              if(i.children){
                i.children.forEach(j=>{
                  this.menuList.push(j);
                })
              }
            })
          }
        })
      },
      edit(data){
        this.dialog.show = true;
        this.dialog.form.id = data.id;
        this.dialog.title = '编辑菜单';
        this.dialog.form.name = data.name;
        this.dialog.form.cover = data.cover;
        this.dialog.form.pid = data.pid;
      },
      add(){
        this.dialog.show = true;
        this.dialog.form.id = '';
        this.dialog.title = '新增菜单';
        this.dialog.form.name = '';
        this.dialog.form.pid = 0;
        this.dialog.form.cover = '';
      },
      del(data){
        this.$confirm('此操作将删除该菜单?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          delMenuApi(data.id).then(res=>{
            this.$message({
              type: 'success',
              message: '删除成功!'
            });
            this.getList()
          });
        });
      },
      sub(){
        this.$refs['form'].validate((valid) => {
          if(valid){
            let dia = this.dialog;
            if(dia.form.id){
              let json = {
                name:dia.form.name,
                cover:dia.form.cover,
                pid:dia.form.pid
              };
              updateMenuApi(dia.form.id,json).then(()=>{
                this.$message({
                  type: 'success',
                  message: '修改成功!'
                });
                dia.show = false;
                this.getList()
              })
            }else{
              let json = {
                name:dia.form.name,
                cover:dia.form.cover,
                pid:dia.form.pid
              };
              saveMenuApi(json).then(()=>{
                this.$message({
                  type: 'success',
                  message: '添加成功!'
                });
                dia.show = false;
                this.getList()
              })
            }
          }
        })
      }
    }
  }
</script>

<style scoped lang="less">
  .menu{
  .head{
    margin-bottom: 10px;
  }
  padding: 20px 0;
  .page-div{
    text-align: center;
    padding-top: 20px
  }
  }
  .clear-both{
  &:after{
     content: '';
     display: block;
     clear: both;
   }
  }
</style>
