(function () {
  'use strict';

  /**
   * @copyright   (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
   * @license     GNU General Public License version 2 or later; see LICENSE.txt
   */
  Joomla = window.Joomla || {};

  (function (Joomla) {
    document.addEventListener('DOMContentLoaded', function () {
      Joomla.submitbutton = function (task) {
        if (task === 'groups.delete') {
          var cids = document.getElementsByName('cid[]');

          for (var i = 0; i < cids.length; i += 1) {
            if (cids[i].checked && cids[i].parentNode.getAttribute('data-usercount') !== '0') {
              // @todo replace with joomla-alert
              if (window.confirm(Joomla.Text._('COM_USERS_GROUPS_CONFIRM_DELETE'))) {
                Joomla.submitform(task);
              }

              return false;
            }
          }
        }

        Joomla.submitform(task);
        return false;
      };
    });
  })(Joomla);

})();