function isObject(value) {
  return value !== null && typeof value === 'object'
}

function isFunction(value) {
  return typeof value === 'function'
}

function identifyType(value) {
  if (isFunction(value)) {
    return 'Function'
  } else if (isObject(value)) {
    return 'Object'
  } else {
    return 'Neither Object nor Function'
  }
}
export default {
  methods: {
    //导入按钮
    importButton(func, name = '导入', params, fun1, fun2) {
      return (
        <el-upload
          action={'_'}
          show-file-list={false}
          http-request={async data => {
            var formdata = new FormData()
            formdata.append('file', data.file)
            if (identifyType(params) == 'Object') {
              for (const key in params) {
                if (Object.hasOwnProperty.call(params, key)) {
                  formdata.append(key, params[key])
                }
              }
            } else if (identifyType(params) == 'Function') {
              try {
                var chanshu = await params()
                for (const key in chanshu || {}) {
                  if (Object.hasOwnProperty.call(chanshu, key)) {
                    formdata.append(key, chanshu[key])
                  }
                }
              } catch (error) {
                return
              }
            }
            const loading = this.$loading({
              lock: true,
              text: '正在导入',
              spinner: 'el-icon-loading',
              background: 'rgba(0, 0, 0, 0.7)'
            })
            fun1 && fun1()
            func({ formdata })
              .then(res => {
                fun2 && fun2(res)
                this.$refs.pageRef.refreshList()
                loading.close()
                this.$message({
                  type: 'success',
                  message: '导入成功!'
                })
              })
              .catch(err => {
                fun2 && fun2()
                loading.close()
                this.$message({
                  type: 'error',
                  message: err.message || '导入失败'
                })
              })
          }}
        >
          <span class="teshudeshangchuananniu">{name}</span>
        </el-upload>
      )
    }
  }
}