<template>
  <div style="margin: 20px">
    <el-form :inline="true" :model="form" class="demo-form-inline" size="small">
      <el-form-item label="航班种类">
        <el-select v-model="form.type" placeholder="航班种类">
          <el-option
            v-for="item in flightType"
            :key="item.id"
            :label="item.englishName"
            :value="item.englishName"
          ></el-option>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-upload
          action="https://jsonplaceholder.typicode.com/posts/"
          :on-remove="handleRemove"
          :limit="1"
          :on-exceed="handleExceed"
          :file-list="fileList"
          accept=".xlsx"
          class="upload-demo"
        >
          <el-button type="primary">点击上传</el-button>
        </el-upload>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="downloadTempleate"
          >下载模板</el-button
        >
      </el-form-item>
    </el-form>

    <el-button @click="clearFilter" size="small">清除所有过滤器</el-button>

    <el-table
      ref="filterTable"
      :data="tableData"
      style="width: 100%; margin-top: 20px"
      size="small"
      border
    >
      <el-table-column label="行号" prop="line" fixed> </el-table-column>

      <el-table-column label="错误信息" prop="errorMessage" fixed>
      </el-table-column>

      <el-table-column label="index"></el-table-column>
    </el-table>
  </div>
</template>
  </div>
</template>

<script>
import { filghtKindData, downLoadTemplate } from "@/api/flightInfoImport";

export default {
  data() {
    return {
      flightType: [],
      form: {
        type: "",
        region: "",
      },
      fileList: [],
      tableData: [
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
        { line: "1", errorMessage: "error" },
      ],
    };
  },
  methods: {
    downloadTempleate() {
      let downloadType = "";
      let fileName = "";
      switch (this.form.type) {
        case "White Tail Piston":
          downloadType = "white_tail";
          fileName = "航班信息导入模板WhiteTail.xlsx";
          break;
        case "Purple Tail":
          downloadType = "purple_tail";
          fileName = "航班信息导入模板PurpleTail.xlsx";
          break;
        default:
          this.$confirm("此类航班暂无模板，请选择其他类型航班", "提示", {
            confirmButtonText: "确定",
            showCancelButton: false,
            type: "warning",
          });
      }
      if (downloadType != "") {
        downLoadTemplate(downloadType).then((res) => {
          if (res) {
            const blob = new Blob([res]);
            const link = document.createElement("a"); //创建a标签
            link.download = fileName; //a标签添加属性
            link.style.display = "none";
            link.href = URL.createObjectURL(blob);
            document.body.appendChild(link);
            link.click(); //执行下载
            URL.revokeObjectURL(link.href); //释放url
            document.body.removeChild(link); //释放标签
          } else {
            this.$message.error('下载失败');
          }
        });
      }
    },
    handleRemove(file, fileList) {
      this.tableData = [];
    },
    handleExceed(files) {
      let file = {};
      file.file = files[0];
      file.name = files[0].name;
      this.fileList = [];
      this.fileList.push(file);
    },
    clearFilter() {
      this.$refs.filterTable.clearFilter();
    },
    formatter(row, column) {
      return row.address;
    },
    filterTag(value, row) {
      return row.tag === value;
    },
    filterHandler(value, row, column) {
      const property = column["property"];
      return row[property] === value;
    },
  },
  created() {
    filghtKindData().then((response) => {
      if (response.code != 200) {
        this.$message({
          message: response.msg,
          type: "error",
        });
      }
      this.flightType = response.data;
      this.form.type = response.data[0].englishName;
    });
  },
};
</script>

<style rel="stylesheet/scss" lang="scss">
.upload-demo {
  float: right;
}
.el-upload-list {
  display: inline-block;
  margin-left: 10px;
  vertical-align: top;
}
</style>