<template>
  <div class="ele-body">
    <a-card style="width: 100%" :bordered="false">
      <template #title>
        <a-space>
          <a-upload
            :before-upload="importFileCity"
            :showUploadList="false"
            accept=".xls,.xlsx,.csv"
          >
            <a-button>数据导入</a-button>
          </a-upload>
         
        </a-space>
      </template>
      <a-tabs v-model:activeKey="activeKey">
        <a-tab-pane tab="环境空气信息" key="">
          <air-bill ref="air"></air-bill>
        </a-tab-pane>
      </a-tabs>
    </a-card>
  </div>
</template>

<script>
import XLSX from "xlsx";
import utils from "./utils";
import { Modal } from "ant-design-vue";
import AirBill from "./air-bill.vue";
import { saveAirBill } from "@/api/ecology/air";
export default {
  name: "AirCollectIndex",
  components: {
    AirBill,
  },
  data() {
    return {
      activeKey: "",
    };
  },
  methods: {
    /* 导入本地excel文件 */
    importFileCity(file) {
      const hide = this.$message.loading("导入中..", 0);

      let reader = new FileReader();
      reader.onload = (e) => {
        try {
          let data = new Uint8Array(e.target.result);
          let workbook = XLSX.read(data, {
            type: "array",
            cellDates: true
          });
          //0.昼间数据 1.夜间数据 2.其他信息
          let sheetNames = workbook.SheetNames;
          // 解析成二维数组
          let aoa = XLSX.utils.sheet_to_json(workbook.Sheets[sheetNames[0]], {
            header: 1,
          });
          let aoa2 = XLSX.utils.sheet_to_json(workbook.Sheets[sheetNames[1]], {
            header: 1,
          });
           let aoa3 = XLSX.utils.sheet_to_json(workbook.Sheets[sheetNames[2]], {
            header: 1,
          });
        
          const airList1 = aoa.filter(
            (item) => {
              return item.length >= 10 &&  item[0] != "城市"}
          );
          const airList2 = aoa2.filter(
            (item) => item.length >= 10 &&  item[0] != "城市"
          );
           const airList3 = aoa3.filter(
            (item) => item.length >= 10 &&  item[0] != "测点名称"
          );
         

          // 解析成对象数组
          const billName1 = sheetNames[0];
          const billData1 = utils.toStationObjData(airList1);
          const billName2 = sheetNames[1];
          const billData2 = utils.toCityObjData(airList2);
          const billName3 = sheetNames[2];
          const billData3 = utils.toAreaObjData(airList3);
          if (
            (!billData1 || billData1.length == 0) &&
            (!billData2 || billData2.length == 0) &&
            (!billData3 || billData3.length == 0)
          ) {
            hide()
            Modal.error({
              title: "导入失败",
              content: "找不到数据",
            });
            return;
          }

          const tasks = [];
          if (billData1.length > 0) {
            tasks.push(
              saveAirBill({
                billName: billName1,
                regionLevel: "站点",
                ambientAirList: billData1,
              })
            );
          }
          if (billData2.length > 0) {
            tasks.push(
              saveAirBill({
                billName: billName2,
                regionLevel: "市级",
                ambientAirList: billData2,
              })
            );
          }
          if (billData3.length > 0) {
            tasks.push(
              saveAirBill({
                billName: billName3,
                regionLevel: "县级",
                ambientAirList: billData3,
              })
            );
          }

          // 上传到服务器

          Promise.all(tasks)
            .then(() => {
              Modal.success({
                title: "导入成功",
                content: `成功导入${billData1.length + billData2.length + billData3.length}条数据`,
              });
              this.$refs.air && this.$refs.air.reload();
            })
            .catch(() => {
              Modal.error({
                title: "导入失败",
                content: "数据上传出错",
              });
            })
            .finally(() => {
              hide();
            });
        } catch (error) {
          hide();
          Modal.error({
            title: "导入失败",
            content: error.message,
          });
        }
        // console.log(billData);
      };
      reader.readAsArrayBuffer(file);

      return false;
    },
    
  },
};
</script>

<style scoped lang="less">
</style>