<?php

class DataServiceUtility {

  public function backup($pluginsBackupDir) {

    if (!file_exists($pluginsBackupDir))

      return false;

    $pluginDir = __DIR__;

    $pluginDirName = basename($pluginDir);

    $pluginBackupDir = build_file_path($pluginsBackupDir, $pluginDirName);

    if (!file_exists($pluginBackupDir))

      mkdir($pluginBackupDir, 0777, TRUE);

    $files = array();

    $files[] = build_file_path($pluginDir, "data_mapping.json"); 

    $files[] = build_file_path($pluginDir, "data_mapping_config.json"); 

    $files[] = build_file_path($pluginDir, "uploads"); 

    foreach($files as $file) {

      if (!file_exists($file))

        continue;

      $dstPath = build_file_path($pluginBackupDir, basename($file));

      if (!recurseCopy($file, $dstPath)) {

        error_log("failed to backup " . $file . " to " . $dstPath);

        return false;

      }

    }

    return true;

  }

  public function restore() {

    $confFile = build_file_path(__DIR__, "data_mapping.json");

    if (!file_exists($confFile))

      return false;

    execCmd('ln -sf ' . $confFile . ' /etc/mqtt-service.json')

    return true;

  }

}

return new DataServiceUtility();

?>