Drsuh commande to update site language domain

gistfile1.php

<?php

function MYMODULE_drush_command() {
  $items = array();

  $items['languages-domain'] = array(
    'aliases' => array('lang-domain'),
    'bootstrap' => DRUSH_BOOTSTRAP_DRUSH, // No bootstrap at all.
    'options' => array(
      'domain' => 'Specify domain (local, dev, prod)',
    ),
  );

  return $items;
}

function MYMODULE_drush_help($section) {
  switch ($section) {
    case 'drush:languages-domain':
      return "Force domain data in language table.\nRequired option: --domain (local, dev, prod)";
      break;
  }
}

// Drush_command-name()
function drush_languages_domain() {
  switch(drush_get_option('domain')) {
    case 'local':
      $domain = array(
        'en' => 'http://local.domain.com',
        'fr' => 'http://local-fr.domain.com',
        'es' => 'http://local-es.domain.com',
      );
      break;
    case 'dev':
      $domain = array(
        'en' => 'http://dev.domain.com',
        'fr' => 'http://dev-fr.domain.com',
        'es' => 'http://dev-es.domain.com',
      );
      break;
    case 'prod':
      $domain = array(
        'en' => 'http://www.domain.com',
        'fr' => 'http://fr.domain.com',
        'es' => 'http://es.domain.com',
      );
      break;
    default:
      return drush_set_error("You must specify a valid domain");
      break;
  }
  db_query("UPDATE {languages} SET domain = '". $domain['en'] ."' WHERE language = 'en'");
  db_query("UPDATE {languages} SET domain = '". $domain['fr'] ."' WHERE language = 'fr'");
  db_query("UPDATE {languages} SET domain = '". $domain['es'] ."' WHERE language = 'es'");
    
  return drush_log("Languages domains has been modified to domain:" . drush_get_option('domain'), 'ok');
}