/**
   * excel开启上传
   * author: panzhide
   * @return array
   * Date: 2021/4/14
   */
  public function logisticsImportExcel()
  {
    $file = request()->file(‘file‘);
    if (!$file) {
      return json_success(‘excel文件不能为空‘, ‘file‘);
    }
    //将文件保存到public/storage/uploads/目录下面
    $savename = \think\Facade\Filesystem::disk(‘public‘)->putFile(‘uploads‘, $file);

    //获取文件路径
    $filePath = getcwd() . ‘/storage/‘ . $savename;
    if (!is_file($filePath)) {
      return json_success(‘没有发现结果‘);
    }
    //实例化reader
    $ext = pathinfo($filePath, PATHINFO_EXTENSION);
    if (!in_array($ext, [‘csv‘, ‘xls‘, ‘xlsx‘])) {
      return json_success(‘未知的数据格式‘);
    }
    if ($ext === ‘csv‘) {
      $file = fopen($filePath, ‘r‘);
      $filePath = tempnam(sys_get_temp_dir(), ‘import_csv‘);
      $fp = fopen($filePath, "w");
      $n = 0;
      while ($line = fgets($file)) {
        $line = rtrim($line, "\n\r\0");
        $encoding = mb_detect_encoding($line, [‘utf-8‘, ‘gbk‘, ‘latin1‘, ‘big5‘]);
        if ($encoding != ‘utf-8‘) {
          $line = mb_convert_encoding($line, ‘utf-8‘, $encoding);
        }
        if ($n == 0 || preg_match(‘/^".*"$/‘, $line)) {
          fwrite($fp, $line . "\n");
        } else {
          fwrite($fp, ‘"‘ . str_replace([‘"‘, ‘,‘], [‘""‘, ‘","‘], $line) . "\"\n");
        }
        $n++;
      }
      fclose($file) || fclose($fp);

      $reader = new Csv();
    } elseif ($ext === ‘xls‘) {
      $reader = new Xls();
    } else {
      $reader = new Xlsx();
    }

    //导入文件首行类型,默认是注释,如果需要使用字段名称请使用name
    $importHeadType = isset($this->importHeadType) ? $this->importHeadType : ‘comment‘;
    //默认的表名
    $table = OrderAddress::build()->getTable();

    $fieldArr = [];
    $list = Db::query(‘SHOW FULL COLUMNS FROM `‘ . $table . ‘`‘);
    foreach ($list as $k => $v) {
      if ($importHeadType == ‘comment‘) {
        $fieldArr[$v[‘Comment‘]] = $v[‘Field‘];
      } else {
        $fieldArr[$v[‘Field‘]] = $v[‘Field‘];
      }
    }

    //加载文件
    $update_data = []; // 需要更新的数据
    $time = time();
    try {
      if (!$PHPExcel = $reader->load($filePath)) {
        return json_success(‘未知的数据格式‘);
      }
      $currentSheet = $PHPExcel->getSheet(0);  //读取文件中的第一个工作表
      // $currentSheet -> setReadDataOnly(true);
      $allColumn = $currentSheet->getHighestDataColumn(); //取得最大的列号
      $allRow = $currentSheet->getHighestRow(); //取得一共有多少行
      $maxColumnNumber = Coordinate::columnIndexFromString($allColumn);
      $fields = [];
      for ($currentRow = 1; $currentRow <= 1; $currentRow++) {
        for ($currentColumn = 1; $currentColumn <= $maxColumnNumber; $currentColumn++) {
          $val = $currentSheet->getCellByColumnAndRow($currentColumn, $currentRow)->getValue();
          $fields[] = $val;
        }
      }
      if (!in_array(‘物流公司‘, $fields)) {
        return json_error(‘缺少物流公司列‘);
      }
      if (!in_array(‘物流编号‘, $fields)) {
        return json_error(‘缺少物流编号列‘);
      }

      $max_row = 5000;
      if ($allRow > $max_row) {
        return json_error("每次最多导入${max_row}条数据");
      }

      $kuaidi_code_data = KuaidiCode::build() -> column(‘code‘, ‘name‘); // 查询当前支持的所有物流公司
      
      
      for ($currentRow = 2; $currentRow <= $allRow; $currentRow++) {
        $values = [];
        for ($currentColumn = 1; $currentColumn <= $maxColumnNumber; $currentColumn++) {
          $val = $currentSheet->getCellByColumnAndRow($currentColumn, $currentRow)->getValue();
          if ($currentColumn == 4 && is_numeric($val)) { // 如果时间是数字类型，需要转格式
            $toTimestamp = \PhpOffice\PhpSpreadsheet\Shared\Date::excelToTimestamp($val);
            $date = date("Y-m-d", $toTimestamp );
            $val = $date;
          }
          $values[] = is_null($val) ? ‘‘ : $val;
        }
        $row = [];
        // dump($values);
        $temp = array_combine($fields, $values);
        foreach ($temp as $k => $v) {
          if (isset($fieldArr[$k]) && $k !== ‘‘) {
            $row[$fieldArr[$k]] = $v;
          }
        }
        if ($row) {
          if ($row[‘kuaidicom‘] || $row[‘logistics_sn‘]) { // 只处理kuaidicom或者logistics_sn有内容的数据
            if (!$row[‘kuaidicom‘]) {
              $error[] = ‘第‘ . $currentRow . ‘行物流公司不得为空‘;
            } elseif (!$row[‘logistics_sn‘]) {
              $error[] = ‘第‘ . $currentRow . ‘行物流编号不得为空‘;
            } else {
              // 判断物流公司是否合法
              $kuaidicom_code = $kuaidi_code_data[$row[‘kuaidicom‘]] ?? ‘‘; // 物流公司对应编码
              if ($kuaidicom_code) {
                $row[‘kuaidicom_code‘] = $kuaidicom_code; // 物流公司对应编码
                $row[‘shipping_time‘] = strtotime($row[‘shipping_time‘]) ; // 发货时间
                $update_data[] = $row;
              } else {
                $error[] = ‘第‘ . $currentRow . ‘行物流公司名称"‘.$row[‘kuaidicom‘].‘"错误或系统不支持‘;
              }
            }
          }
        }
      }
    } catch (Exception $exception) {
      return json_success($exception->getMessage());
    }

    if (!$update_data) {
      return json_success(‘没有更新行‘);
    }
    $n = 0;
    Db::startTrans();
    try {
      $this -> logisticsImportExcelUpdate($update_data);
      Db::commit();
    } catch (\Exception $e) {
      Db::rollback();
      $msg = $e->getMessage();
      return json_error($msg);
    }
    
    $msg = ‘成功导入‘ . count($update_data) . ‘条数据，失败‘.count($error).‘条数据‘;
    $data[‘complete‘] = 1;
    $data[‘error‘] = $error;
    return json_success($msg, $data);
  }

  private function logisticsImportExcelUpdate($update_data)
  {
    // 整合更新语句
    $update_value_sql = ‘‘;
    $update_id_sql = ‘‘;
    $update_key = [‘kuaidicom‘, ‘kuaidicom_code‘, ‘logistics_sn‘];
    foreach ($update_key as $key) {
      $n = 0;
      foreach ($update_data as $value) {
        $n ++;
        if ($n == 1) {
          $update_value_sql .=  $key." = CASE order_sn ";
        }
        $update_value_sql .= ‘WHEN \‘‘.$value[‘order_sn‘].‘\‘ THEN \‘‘.$value[$key].‘\‘‘;
        if ($n != count($update_data)) {
          $update_value_sql .= " ";
        } else {
          $update_value_sql .= " END,";
        }
      }
    }
    $update_value_sql = substr($update_value_sql,0,strlen($update_value_sql)-1);
    $n = 0;
    foreach ($update_data as $value) {
      $n ++;
      if ($n == 1) {
        $update_id_sql .=  "(";
      }
      $update_id_sql .= ‘ \‘‘.$value[‘order_sn‘].‘\‘ ‘;
      if ($n != count($update_data)) {
        $update_id_sql .= ",";
      } else {
        $update_id_sql .= ")";
      }
    }       
    if (count($update_data)) {
      $update_sql = ‘UPDATE cy_order_address SET ‘.$update_value_sql.‘ WHERE order_sn IN ‘.$update_id_sql.‘;‘;
      Db::query($update_sql); // 执行更新语句，更新订单地址表 物流公司、物流编号、物流公司编号
    }

    // 整合更新语句
    $update_value_sql = ‘‘;
    $update_id_sql = ‘‘;
    $update_key = [‘shipping_time‘];
    foreach ($update_key as $key) {
      $n = 0;
      foreach ($update_data as $value) {
        $n ++;
        if ($n == 1) {
          $update_value_sql .=  $key." = CASE order_sn ";
        }
        $update_value_sql .= ‘WHEN \‘‘.$value[‘order_sn‘].‘\‘ THEN \‘‘.$value[$key].‘\‘‘;
        if ($n != count($update_data)) {
          $update_value_sql .= " ";
        } else {
          $update_value_sql .= " END,";
        }
      }
    }
    $update_value_sql = substr($update_value_sql,0,strlen($update_value_sql)-1);
    $n = 0;
    foreach ($update_data as $value) {
      $n ++;
      if ($n == 1) {
        $update_id_sql .=  "(";
      }
      $update_id_sql .= ‘ \‘‘.$value[‘order_sn‘].‘\‘ ‘;
      if ($n != count($update_data)) {
        $update_id_sql .= ",";
      } else {
        $update_id_sql .= ")";
      }
    }       
    if (count($update_data)) {
      $update_sql = ‘UPDATE cy_order SET ‘.$update_value_sql.‘ WHERE order_sn IN ‘.$update_id_sql.‘;‘;
      Db::query($update_sql); // 执行更新语句，更新订单表 发货时间
    }
  }