<template>
  <div>
    <el-alert
      effect="dark"
      :closable="false"
      title="基于 Element 的 Table 组件进行二次封装，实现数据驱动，支持所有 Table 参数 -- 树形数据与懒加载"
      type="info"
      style="margin-bottom: 20px;"
    />
    <com-table
      v-loading="loading"
      :columns="columns"
      :data="tableData"
      row-field="id"
      border
      default-expand-all
      :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
    />

    <com-table
      v-loading="loading"
      :columns="columns1"
      :data="tableData1"
      row-field="id"
      border
      lazy
      :load="load"
      :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
      style="margin-top: 20px;"
    />
  </div>
</template>

<script lang="ts">
import { defineComponent, ref } from 'vue'

const columns = [
  {
    field: 'date',
    label: '日期',
    sortable: true
  },
  {
    field: 'name',
    label: '姓名',
    sortable: true
  },
  {
    field: 'address',
    label: '地址'
  }
]

const columns1 = [
  {
    field: 'date',
    label: '日期'
  },
  {
    field: 'name',
    label: '姓名'
  },
  {
    field: 'address',
    label: '地址'
  }
]

const tableData = [
  {
    id: 1,
    date: '2016-05-02',
    name: '王小虎',
    address: '上海市普陀区金沙江路 1518 弄'
  },
  {
    id: 2,
    date: '2016-05-04',
    name: '王小虎',
    address: '上海市普陀区金沙江路 1517 弄'
  },
  {
    id: 3,
    date: '2016-05-01',
    name: '王小虎',
    address: '上海市普陀区金沙江路 1519 弄',
    children: [
      {
        id: 31,
        date: '2016-05-01',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1519 弄'
      },
      {
        id: 32,
        date: '2016-05-01',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1519 弄'
      }
    ]
  },
  {
    id: 4,
    date: '2016-05-03',
    name: '王小虎',
    address: '上海市普陀区金沙江路 1516 弄'
  }
]

const tableData1 = [
  {
    id: 1,
    date: '2016-05-02',
    name: '王小虎',
    address: '上海市普陀区金沙江路 1518 弄'
  },
  {
    id: 2,
    date: '2016-05-04',
    name: '王小虎',
    address: '上海市普陀区金沙江路 1517 弄'
  },
  {
    id: 3,
    date: '2016-05-01',
    name: '王小虎',
    address: '上海市普陀区金沙江路 1519 弄',
    hasChildren: true
  },
  {
    id: 4,
    date: '2016-05-03',
    name: '王小虎',
    address: '上海市普陀区金沙江路 1516 弄'
  }
]

export default defineComponent({
  // name: 'TreeAndLoad',
  setup() {
    const loading = ref<boolean>(true)
    setTimeout(() => {
      loading.value = false
    }, 1000)

    function load(tree: any, treeNode: any, resolve: Function) {
      setTimeout(() => {
        resolve([
          {
            id: 31,
            date: '2016-05-01',
            name: '王小虎',
            address: '上海市普陀区金沙江路 1519 弄'
          }, {
            id: 32,
            date: '2016-05-01',
            name: '王小虎',
            address: '上海市普陀区金沙江路 1519 弄'
          }
        ])
      }, 1000)
    }

    return {
      columns,
      columns1,
      tableData,
      tableData1,
      loading,
      load
    }
  }
})
</script>

<style>
</style>
