import XLSX from 'xlsx'
import common from '@/utils/common'

export default {
  /**
   * 导入报检设备信息
   * @param self        this对象
   * @param file        当前xlsx文件
   * @param importField 文字和字段的对应关系：[{ label: '文字', value: '字段名' }]
   * @param sbzldm      设备种类代码
   * @param bjType      报检类型（车用气瓶：cyqp）
   * @returns {boolean}
   */
  beforeUpload(self, file, importField, sbzldm, bjType) {
    if (!/\.(xlsx)$/.test(file.name)) {
      self.$message({
        message: '请使用指定模板上传数据.',
        type: 'warning'
      })
    }
    if (!importField || !importField.length) {
      self.$message({
        message: '暂未提供当前导入模板.',
        type: 'warning'
      })
    }
    const loading = self.$loading({
      lock: true,
      text: 'Loading',
      spinner: 'el-icon-loading',
      background: 'rgba(0, 0, 0, 0.7)'
    })
    // 读取数据
    const reader = new FileReader()
    reader.onload = e => {
      const data = e.target.result
      const workbook = XLSX.read(data, { type: 'array' })
      for (let index = 0; index < importField.length; index++) {
        const firstSheetName = workbook.SheetNames[index]
        const worksheet = workbook.Sheets[firstSheetName]
        // 从表格中读取数据，以第一行为key，其余行为数据，组成数据进行返回
        const importData = XLSX.utils.sheet_to_json(worksheet, { range: 1, raw: false, header: importField[index].map(field => field.value) })
        if (index === 0 && importField.length > 1) {
          const bjd = importData[0]
          Object.keys(bjd).forEach(key => {
            if (key === 'quhuamingcheng') {
              const area = self.areas.filter(area => area.label === bjd[key])[0]
              self.bjd.quhuadaima = area ? area.value : self.bjd.quhuadaima
            } else {
              self.bjd[key] = bjd[key]
            }
          })
        } else {
          importData.forEach(tableObj => {
            // 遍历字段名修改其对应关系
            // 设置默认值
            if (sbzldm === 'F000') {
              tableObj.neibuleibie = 'DQ'
              tableObj.shebeizhonglei = '安全附件'
              tableObj.shebeizhongleidaima = 'F000'
              tableObj.shebeileibie = '压力管道阀门'
              tableObj.shebeileibiedaima = '7300'
              tableObj.shebeipinzhong = '安全阀'
              tableObj.shebeipinzhongdaima = '7310'
              tableObj.s18 = 'TSGZF001-2006'
            } else if (bjType === 'cyqp') {
              tableObj.neibuleibie = 'JD'
              tableObj.shebeizhonglei = '压力容器'
              tableObj.shebeizhongleidaima = '2000'
              tableObj.shebeileibie = '气瓶'
              tableObj.shebeileibiedaima = '2300'
              tableObj.shebeipinzhong = '特种气瓶'
              tableObj.shebeipinzhongdaima = '23T0'
            } else if (bjType === 'ZJ') {
              tableObj.neibuleibie = 'ZZ'
              if (sbzldm === '1000') {
                tableObj.shebeizhonglei = '锅炉'
                tableObj.shebeizhongleidaima = '1000'
                // 根据设备类别获取对应数据，数据如下：
                // {"value":"1100","label":"承压蒸汽锅炉","children":[{"value":"1110","label":"电站锅炉","children":null},{"value":"1120","label":"工业锅炉","children":null}]}
                const sblb = self.sblbList.filter(row => row.label === tableObj.shebeileibie)[0]
                tableObj.shebeileibiedaima = sblb.value
                tableObj.shebeipinzhong = sblb.children[0].label
                tableObj.shebeipinzhongdaima = sblb.children[0].value
              } else if (sbzldm === '2000') {
                tableObj.shebeizhonglei = '压力容器'
                tableObj.shebeizhongleidaima = '2000'
                tableObj.ss1 = common.accMul(tableObj.s54, tableObj.ss7)
                tableObj.xitongheding = common.accMul(tableObj.ss1, tableObj.ss2 / 100)
                if (tableObj.xitongheding < 50) {
                  tableObj.xitongheding = 50
                }
              }
            }
            self.$set(tableObj, 'sblbpz', [String(tableObj.shebeileibiedaima), String(tableObj.shebeipinzhongdaima)])
          })
          self.tableData = self.tableData.concat(importData)
          self.$forceUpdate()
        }
      }
    }
    reader.readAsArrayBuffer(file)
    loading.close()
  }
}