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

    <!-- 查询和其他操作 -->
    <div class="filter-container">
      <el-input clearable class="filter-item" style="width: 200px;" placeholder="请输入用户ID" v-model="listQuery.userId">
      </el-input>
      <el-input clearable class="filter-item" style="width: 200px;" placeholder="请输入商品ID" v-model="listQuery.goodsId">
      </el-input>
      <el-button class="filter-item" type="primary" icon="el-icon-search" @click="handleFilter">查找</el-button>
      <el-button class="filter-item" type="primary" :loading="downloadLoading" icon="el-icon-download" @click="handleDownload">导出</el-button>
    </div>

    <!-- 查询结果 -->
    <el-table size="small" :data="list" v-loading="listLoading" element-loading-text="正在查询中。。。" border fit highlight-current-row>
      <el-table-column align="center" width="100px" label="足迹ID" prop="id" sortable>
      </el-table-column>

      <el-table-column align="center" min-width="100px" label="用户ID" prop="userId">
      </el-table-column>

      <el-table-column align="center" min-width="100px" label="商品ID" prop="goodsId">
      </el-table-column>
      
      <el-table-column align="center" min-width="100px" label="添加时间" prop="addTime">
      </el-table-column>          

    </el-table>

    <!-- 分页 -->
    <div class="pagination-container">
      <el-pagination background @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="listQuery.page"
        :page-sizes="[10,20,30,50]" :page-size="listQuery.limit" layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>
    </div>

  </div>
</template>

<script>
import { listFootprint } from '@/api/footprint'

export default {
  name: 'FootPrint',
  data() {
    return {
      list: null,
      total: null,
      listLoading: true,
      listQuery: {
        page: 1,
        limit: 20,
        userId: undefined,
        goodsId: undefined,
        sort: 'add_time',
        order: 'desc'
      },
      downloadLoading: false
    }
  },
  created() {
    this.getList()
  },
  methods: {
    getList() {
      this.listLoading = true
      listFootprint(this.listQuery).then(response => {
        this.list = response.data.data.items
        this.total = response.data.data.total
        this.listLoading = false
      }).catch(() => {
        this.list = []
        this.total = 0
        this.listLoading = false
      })
    },
    handleFilter() {
      this.listQuery.page = 1
      this.getList()
    },
    handleSizeChange(val) {
      this.listQuery.limit = val
      this.getList()
    },
    handleCurrentChange(val) {
      this.listQuery.page = val
      this.getList()
    },
    handleDownload() {
      this.downloadLoading = true
      import('@/vendor/Export2Excel').then(excel => {
        const tHeader = ['用户ID', '商品ID', '添加时间']
        const filterVal = ['userId', 'goodsId', 'addTime']
        excel.export_json_to_excel2(tHeader, this.list, filterVal, '用户收藏信息')
        this.downloadLoading = false
      })
    }
  }
}
</script>
