<template>
  <div class="app-container">
    <!-- 查询条件 -->
    <el-form :inline="true" :model="queryParams" class="filter-form">
      <el-form-item label="耳号">
        <el-input v-model="queryParams.manageEarTag" placeholder="请输入耳号" />
      </el-form-item>
      <el-form-item label="筛选天数">
        <el-input-number v-model="queryParams.screenDays" :min="0" placeholder="请输入天数" />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="handleQuery">查询</el-button>
        <el-button @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <!-- 操作按钮行 -->
    <div class="button-group">
      <el-button type="success" @click="handleExport">导出</el-button>

      <el-popover
        placement="bottom"
        width="400"
        trigger="click"
        >
            <el-checkbox-group v-model="selectedFields" class="checkbox-columns">
                <el-checkbox
                    v-for="col in allColumns"
                    :key="col.prop"
                    :label="col.prop"
                >{{ col.label }}</el-checkbox>
            </el-checkbox-group>

            <template #reference>
                <el-button type="info">展示列</el-button>
            </template>
        </el-popover>

    </div>

    <!-- 数据表格 -->
    <el-table :data="list" border style="width: 100%" v-loading="loading" :row-key="row => row.id">
      <el-table-column
        v-for="col in visibleColumns"
        :key="col.prop"
        :label="col.label"
        :prop="col.prop"
        :min-width="col.minWidth || 120"
      />
    </el-table>

    <!-- 分页 -->
    <el-pagination
      v-show="total > 0"
      :total="total"
      :current-page="queryParams.pageNum"
      :page-size="queryParams.pageSize"
      @current-change="handlePageChange"
      @size-change="handleSizeChange"
      layout="total, sizes, prev, pager, next, jumper"
      :page-sizes="[10, 20, 50, 100]"
    />
  </div>
</template>

<script>
import { listSheepMilkAnalysis, exportSheepMilkAnalysis } from "@/api/dairyProducts/sheepMilkAnalysis/sheepMilkAnalysis.js";

export default {
  name: "SheepMilkAnalysis",
  data() {
    return {
      loading: false,
      total: 0,
      list: [],
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        manageEarTag: null,
        screenDays: null
      },
      selectedFields: [],
      allColumns: [
        { label: "耳号", prop: "manageEarTag" },
        { label: "品种", prop: "variety" },
        { label: "挤奶时间", prop: "milkingDate" },
        { label: "干奶时间", prop: "dryDate" },
        { label: "筛选天数", prop: "screeningDays" },
        { label: "挤奶天数", prop: "milkingDays" },
        { label: "校正后最大胎次", prop: "maxCorrectedParity" },
        { label: "系统奶量之合计", prop: "systemMilkTotal" },
        { label: "校正奶量之合计", prop: "correctedMilkTotal" },
        { label: "校正日平均奶量", prop: "avgDailyCorrectedMilk" },
        { label: "胎次1的总产奶量", prop: "parity1TotalMilk" },
        { label: "胎次2的总产奶量", prop: "parity2TotalMilk" },
        { label: "胎次3的总产奶量", prop: "parity3TotalMilk" },
        { label: "胎次4的总产奶量", prop: "parity4TotalMilk" },
        { label: "胎次1的日平均产量", prop: "parity1AvgDailyMilk" },
        { label: "胎次2的日平均产量", prop: "parity2AvgDailyMilk" },
        { label: "胎次3的日平均产量", prop: "parity3AvgDailyMilk" },
        { label: "胎次4的日平均产量", prop: "parity4AvgDailyMilk" },
        { label: "泌乳天数", prop: "lactationDays" },
        { label: "过去7日日平均奶量", prop: "past7DaysAvgMilk" },
        { label: "校正过去7日日平均奶量", prop: "past7DaysAvgCorrectedMilk" },
        { label: "过去14日日平均奶量", prop: "past14DaysAvgMilk" },
        { label: "过去30日日平均奶量", prop: "past30DaysAvgMilk" },
        { label: "羊只类型", prop: "sheepType" },
        { label: "生日", prop: "birthDate" },
        { label: "当前胎次", prop: "currentParity" },
        { label: "月龄", prop: "ageMonths" },
        { label: "当前体重", prop: "currentWeight" },
        { label: "繁育状态", prop: "breedStatus" },
        { label: "父号", prop: "fatherTag" },
        { label: "母号", prop: "motherTag" },
        { label: "牧场名称", prop: "ranchName" },
        { label: "家系", prop: "familyLine" },
        { label: "母亲挤奶天数", prop: "motherMilkingDays" },
        { label: "母亲校正奶量之合计", prop: "motherCorrectedMilkTotal" },
        { label: "母亲校正后最大胎次", prop: "motherMaxCorrectedParity" },
        { label: "母亲校正日平均奶量", prop: "motherAvgDailyCorrectedMilk" }
      ]
    };
  },
  created() {
    this.selectedFields = this.allColumns.map(c => c.prop);
    this.getList();
  },
  computed: {
    visibleColumns() {
      return this.allColumns.filter(col => this.selectedFields.includes(col.prop));
    }
  },
  methods: {
    getList() {
      this.loading = true;
      listSheepMilkAnalysis(this.queryParams).then(response => {
        this.list = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    resetQuery() {
      this.queryParams = {
        pageNum: 1,
        pageSize: 10,
        manageEarTag: null,
        screenDays: null
      };
      this.selectedFields = this.allColumns.map(c => c.prop);
      this.getList();
    },
    handlePageChange(pageNum) {
      this.queryParams.pageNum = pageNum;
      this.getList();
    },
    handleSizeChange(pageSize) {
      this.queryParams.pageSize = pageSize;
      this.getList();
    },
    handleExport() {
      exportSheepMilkAnalysis(this.queryParams).then(response => {
        const blob = new Blob([response], { type: 'application/vnd.ms-excel' });
        const url = window.URL.createObjectURL(blob);
        const link = document.createElement('a');
        link.href = url;
        link.setAttribute('download', '羊奶分析数据.xlsx');
        document.body.appendChild(link);
        link.click();
        document.body.removeChild(link);
      });
    }
  }
};
</script>

<style scoped>
.filter-form .el-form-item {
  margin-right: 15px;
}
.button-group {
  margin-bottom: 10px;
}
.checkbox-columns {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-height: 300px;
  overflow-y: auto;
}
</style>
