<template>
  <div class="app-container calendar-list-container">

    <el-table :data="list" v-loading.body="listLoading" border fit highlight-current-row style="width: 100%">

      <el-table-column align="center" label="序号" width="65">
        <template scope="scope">
          <span>{{scope.row.id}}</span>
        </template>
      </el-table-column>

      <el-table-column width="180px" align="center" label="时间">
        <template scope="scope">
          <span>{{scope.row.timestamp | parseTime('{y}-{m}-{d} {h}:{i}')}}</span>
        </template>
      </el-table-column>

      <el-table-column min-width="300px" label="标题">
        <template scope="scope">
          <span>{{scope.row.title}}</span>
        </template>
      </el-table-column>

      <el-table-column width="110px" align="center" label="作者">
        <template scope="scope">
          <span>{{scope.row.author}}</span>
        </template>
      </el-table-column>

      <el-table-column width="80px" label="重要性">
        <template scope="scope">
          <icon-svg v-for="n in +scope.row.importance" icon-class="wujiaoxing" class="meta-item__icon" :key="n"></icon-svg>
        </template>
      </el-table-column>

      <el-table-column align="center" label="阅读数" width="95">
        <template scope="scope">
          <span>{{scope.row.pageviews}}</span>
        </template>
      </el-table-column>

      <el-table-column class-name="status-col" label="状态" width="90">
        <template scope="scope">
          <el-tag :type="scope.row.status | statusFilter">{{scope.row.status}}</el-tag>
        </template>
      </el-table-column>

      <el-table-column align="center" label="拖拽" width="95">
        <template scope="scope">
          <icon-svg class='drag-handler' icon-class="tuozhuai" ></icon-svg>
        </template>
      </el-table-column>

    </el-table>

    <div class='show-d'>默认顺序  &nbsp;  {{ olderList}}</div>
    <div class='show-d'>拖拽后顺序{{newList}}</div>

  </div>
</template>

<script>
  import { fetchList } from 'api/article_table';
  import Sortable from 'sortablejs'

  export default {
    name: 'drag-table_demo',
    data() {
      return {
        list: null,
        total: null,
        listLoading: true,
        listQuery: {
          page: 1,
          limit: 10
        },
        sortable: null,
        olderList: [],
        newList: []
      }
    },
    created() {
      this.getList();
    },
    filters: {
      statusFilter(status) {
        const statusMap = {
          published: 'success',
          draft: 'gray',
          deleted: 'danger'
        };
        return statusMap[status]
      }
    },
    methods: {
      getList() {
        this.listLoading = true;
        fetchList(this.listQuery).then(response => {
          this.list = response.data.items;
          this.total = response.data.total;
          this.listLoading = false;
          this.olderList = this.list.map(v => v.id);
          this.newList = this.olderList.slice();
          this.$nextTick(() => {
            this.setSort()
          })
        })
      },
      setSort() {
        const el = document.querySelectorAll('.el-table__body-wrapper > table > tbody')[0];
        this.sortable = Sortable.create(el, {
          // handle: '.drag-handler',
          onEnd: evt => {
            const tempIndex = this.newList.splice(evt.oldIndex, 1)[0];
            this.newList.splice(evt.newIndex, 0, tempIndex);
          }
        });
      }
    }
  }
</script>

<style >
.drag-handler{
  width: 30px;
  height: 30px;
  cursor: pointer;
}
.show-d{
  margin-top: 15px;
}
</style>
