<template>
  <div class="app-container">
    <el-card class="operate-container" shadow="never">
      <el-form :inline="true" class="demo-form-inline">
        <el-form-item>
          <el-input v-model="searchObj.outTradeNo" placeholder="订单号"/>
        </el-form-item>
        <el-form-item>
          <el-input v-model="searchObj.phone" placeholder="手机"/>
        </el-form-item>
        <el-form-item>
          <el-date-picker v-model="searchObj.createTimeBegin" type="date" placeholder="选择下单开始日期"
                          value-format="yyyy-MM-dd"
          />
        </el-form-item>
        <el-form-item>
          <el-date-picker v-model="searchObj.createTimeEnd" type="date" placeholder="选择截止日期" value-format="yyyy-MM-dd"/>
        </el-form-item>
        <el-form-item>
          <el-select v-model="searchObj.orderStatus" placeholder="订单状态" class="v-select patient-select">
            <el-option v-for="item in statusList" :key="item.status" :label="item.name" :value="item.status">
            </el-option>
          </el-select>
        </el-form-item>
        <el-button type="primary" icon="el-icon-search" @click="fetchData()">查询</el-button>
        <el-button type="default" @click="resetData()">清空</el-button>
      </el-form>
    </el-card>

    <!-- 列表 -->
    <el-table v-loading="listLoading" :data="list" border fit highlight-current-row>
      <el-table-column label="序号" width="60" align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>
      <el-table-column prop="outTradeNo" label="订单号" width="160"/>
      <el-table-column prop="courseName" label="课程名称" width="160">
        <template slot-scope="scope">
          {{ scope.row.courseName }}
        </template>
      </el-table-column>
      <el-table-column prop="finalAmount" label="订单金额" width="90"/>
      <el-table-column prop="nickName" label="下单用户"/>
      <el-table-column prop="phone" label="用户手机"/>
      <el-table-column prop="payTime" label="支付时间" width="156"/>
      <el-table-column prop="orderStatus" label="订单状态">
        <template slot-scope="scope">
          {{ scope.row.orderStatus == 0 ? '未支付' : '已支付' }}
        </template>
      </el-table-column>
      <el-table-column prop="createTime" label="下单时间" width="156"/>
    </el-table>

    <!-- 分页组件 -->
    <el-pagination
      :current-page="page"
      :total="total"
      :page-size="limit"
      :page-sizes="[5, 10, 20, 30, 40, 50, 100]"
      style="padding: 30px 0; text-align: center;"
      layout="sizes, prev, pager, next, jumper, ->, total, slot"
      @current-change="fetchData"
      @size-change="changeSize"
    />
  </div>
</template>
<script>
import orderInfoApi from '@/api/order/order'

export default {
  data() {
    return {
      listLoading: true,
      list: null,
      total: 0,
      page: 1,
      limit: 10,
      searchObj: {},
      statusList: [
        {
          'status': 0,
          'name': '未支付'
        },
        {
          'status': 1,
          'name': '已支付'
        }
      ]
    }
  },
  // 生命周期函数：内存准备完毕，页面尚未渲染
  created() {
    this.fetchData()
  },
  methods: {
    // 当页码发生改变的时候
    changeSize(size) {
      this.limit = size
      this.fetchData(1)
    },
    // 加载 banner 列表数据
    fetchData(page = 1) {
      // 异步获取远程数据（ajax）
      this.page = page
      orderInfoApi.getPageList(this.page, this.limit, this.searchObj).then(
        response => {
          this.list = response.data.records
          this.total = response.data.total
          // 数据加载并绑定成功
          this.listLoading = false
        }
      )
    },
    // 重置查询表单
    resetData() {
      this.searchObj = {}
      this.fetchData()
    }
  }
}
</script>
