/**
  * Cleaning for csv files and connector tables.
  *
  * @return string
  */
 public function cleaning()
 {
     //Clean tables
     $tables = ['automation' => 'email_automation', 'importer' => 'email_importer', 'campaign' => 'email_campaign'];
     $message = 'Cleaning cron job result :';
     foreach ($tables as $key => $table) {
         $result = $this->importerResource->cleanup($table);
         $message .= " {$result} records removed from {$key} .";
     }
     $archivedFolder = $this->fileHelper->getArchiveFolder();
     $result = $this->fileHelper->deleteDir($archivedFolder);
     $message .= ' Deleting archived folder result : ' . $result;
     $this->helper->log($message);
     return $message;
 }