<template>
  <div>
    <el-tree :data="menus" :props="defaultProps" 
  :expand-on-click-node="false" 
  show-checkbox node-key="catId"
  :default-expanded-keys="expandedKey"
  >
    <span class="custom-tree-node" slot-scope="{ node, data }">
      <span>{{ node.label }}</span>
      <span>
        <el-button v-if="node.level <= 2" type="text" size="mini" @click="() => append(data)">
          Append
        </el-button>
        <el-button type="text" size="mini" @click="edit(data)">
          edit
        </el-button>
        <el-button v-if="node.childNodes.length == 0" type="text" size="mini" @click="() => remove(node, data)">
          Delete
        </el-button>
      </span>
    </span>
  </el-tree>


  <!-- <el-button type="text" @click="dialogVisible = true">点击打开 Dialog</el-button> -->

<el-dialog
  :title="title"
  :visible.sync="dialogVisible"
  width="30%"
  :close-on-press-escape="false"
  >
  <el-form :model="category">
    <el-form-item label="分类名称">
      <el-input v-model="category.name" autocomplete="off"></el-input>
    </el-form-item>
    <el-form-item label="图标">
      <el-input v-model="category.icon" autocomplete="off"></el-input>
    </el-form-item>
    <el-form-item label="计量单位">
      <el-input v-model="category.productUnit" autocomplete="off"></el-input>
    </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="dialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="submitData">确 定</el-button>
  </span>
</el-dialog>

  </div>

</template>

<script>
import { name } from 'file-loader';
import { sort } from 'semver';


export default {
  components: {},
  props: {},
  data() {
    return {
      title: "",
      dialogType: "",
      category: {
        name : "",parentCid:0,catLevel:0,showStatus:1,sort:0,
        productUnit:"",
        icon:"",
        catId:null
      },
      dialogVisible: false,
      menus: [],
      expandedKey: [],
      defaultProps: {
        children: 'children',
        label: 'name'
      }
    };
  },
  methods: {

    getMenus() {
      this.$http({
        url: this.$http.adornUrl('/product/category/list/tree'),
        method: 'get'
      }).then(({ data }) => {

        console.log("成功获取到菜单数据。。。", data.page)
        this.menus = data.page;
      })
    },
    edit(data) {
      console.log("要修改的数据",data);
      this.dialogType = "edit";
      this.title = "修改分类";
      this.dialogVisible = true;
      //填充表数据
      // this.category = {...data};

      //发送请求获取当前节点最新的数据
      this.$http({
        url: this.$http.adornUrl(`/product/category/info/${data.catId}`),
        method: 'get'
      }).then(({ data }) => {
        console.log("要回显的数据",data);
        //请求成功
        this.category.name = data.data.name;
        this.category.catId = data.data.catId;
        this.category.icon = data.data.icon;
        this.category.productUnit = data.data.productUnit;
        this.category.parentCid = data.data.parentCid;
        this.category.catLevel = data.data.catLevel;
        this.category.sort = data.data.sort;
        this.category.showStatus = data.data.showStatus;
      })


    },
    //修改三级分类数据
    editCategory() {

      var {catId,name,icon,productUnit} = this.category;
      var data = {catId:catId,name: name,icon:icon,productUnit:productUnit};
      this.$http({
        url: this.$http.adornUrl(`/product/category/update`),
        method: 'post',
        data: this.$http.adornData(data, false)
      }).then(({ data }) => {
        this.$message({
          message: '菜单修改成功',
          type:"success"
        });
        //关闭对话框
        this.dialogVisible = false;
        //刷新出新的菜单
        this.getMenus();
        //设置需要默认展开 的菜单
        this.expandedKey = [this.category.parentCid];
      })
    },
    append(data) {
      console.log("append", data);
      this.dialogType = "add";
      this.title = "添加分类";  
      this.dialogVisible = true;
      this.category.parentCid = data.catId;
      this.category.catLevel = data.catLevel * 1 + 1;
      this.category.catId = null;
      this.category.name = "";
      this.category.icon = "";
      this.category.productUnit = "";
      this.category.sort = 0;
      this.category.showStatus = 1;

      
    },
    submitData(){
      if(this.dialogType == "add"){
        this.addCategory();
      }else{
        this.editCategory();
      }
    },
    //添加三级分类
    addCategory() {
      console.log("提交的三级分类 数据addCategory", this.category)
      this.$http({
        url: this.$http.adornUrl('/product/category/save'),
        method: 'post',
        data: this.$http.adornData(this.category, false)
      }).then(({ data }) => {
        this.$message({
          message: '菜单保存成功',
          type:"success"
        });
        //关闭对话框
        this.dialogVisible = false;
        //刷新出新的菜单
        this.getMenus();
        //设置需要默认展开 的菜单
        this.expandedKey = [this.category.parentCid];
        //清空输入框
        // this.category = {name : "",parentCid:0,catLevel:0,showStatus:1,sort:0}
      })
    },
    remove(node, data) {
      var ids = [data.catId];
      this.$confirm(`是否删除【${data.name}】`, '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.$http({
          url: this.$http.adornUrl('/product/category/delete'),
          method: 'post',
          data: this.$http.adornData(ids, false)
        }).then(({ data }) => {
          this.$message({
            message: '菜单删除成功',
            type:"success"
          });
          //刷新出新的菜单
          this.getMenus();
          //设置需要默认展开 的菜单
          this.expandedKey = [node.parent.data.catId]
        });
      }).catch(() => {

      });
      console.log("remove", node, data)
    }
  },
  created() {
    this.getMenus();
  }
};
</script>

<style lang="scss" scoped></style>