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(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) {
    Joomla.hideAssociation = function (formControl, languageCode) {
      var controlGroup = [].slice.call(document.querySelectorAll('#associations .control-group'));
      controlGroup.forEach(function (element) {
        // Current selected language. Hide it
        var el = element.querySelector('.control-label label');

if (el) {
          var attribute = el.getAttribute('for');

if (attribute.replace(new RegExp('_name$'), '') === formControl + "_associations_" + languageCode.replace('-', '_')) {
            element.classList.add('hidden');
          }
        }
      });
    };

Joomla.showAssociationMessage = function () {
      var controlGroup = [].slice.call(document.querySelectorAll('#associations .control-group'));
      var associations = document.getElementById('associations');

if (associations) {
        var html = document.createElement('joomla-alert');
        html.innerText = Joomla.Text._('JGLOBAL_ASSOC_NOT_POSSIBLE');
        associations.insertAdjacentElement('afterbegin', html);
      }

controlGroup.forEach(function (element) {
        element.classList.add('hidden');
      });
    };
    /**
     * Inject associations into other association fields
     *
     * This function is called whenever the Ajax request within propagateAssociation() completes
     * successfully.
     * Its purpose is to inject the associations which have been returned in the Ajax response into
     * the other association fields in the form.
     * It does this by invoking the various callback functions of those association fields (i.e. the
     * function which gets called whenever the administrator selects an association via the modal),
     * and passing the appropriate associated record details.
     *
     * @param   result                  The response from the Ajax request.
     *                                  Its structure is that generated by the JResponseJson class,
     *                                  with the data field containing the associations
     * @param   callbackFunctionPrefix  The name of the callback function which the modal window uses
     *                                  to set the selected item as the association, but minus the
     *                                  language tag at the end
     *
     * @return  boolean
     *
     * @since   3.9.0
     */

Joomla.injectAssociations = function (result, callbackFunctionPrefix) {
      var functionName;

if (result.success) {
        if (result.data.length !== 0) {
          [].slice.call(Object.keys(result.data)).forEach(function (lang) {
            functionName = callbackFunctionPrefix + lang.replace('-', '_');
            window[functionName](result.data[lang].id, result.data[lang].title, result.data[lang].catid, null, null, lang);
          });
        }

if (result.message) {
          Joomla.renderMessages({
            notice: [result.message]
          });
        }
      } else {
        Joomla.renderMessages({
          warning: [Joomla.Text._('JGLOBAL_ASSOCIATIONS_PROPAGATE_FAILED')]
        });
      }
    };
    /**
     * Propagate associations from this field into other association fields
     *
     * This function is called whenever an administrator populates an association (in the association
     * modal field) and then clicks on the Propagate button.
     * The purpose of this function is to find what other records (if any) are associated with the
     * one which the administrator has selected, and populate the other association fields with these
     * records. (Otherwise, if the administrator just clicks on Save without clicking on Propagate,
     * those other associations will be deleted). It does this by finding the id of the selected
     * associated record (from a hidden field) and makes an Ajax call to the server to find the other
     * associations, also passing up the language of the record currently being edited, as it should
     * be excluded. Once it has received from the server the other associations it calls
     * injectAssociations to inject them into the other association fields within the form.
     *
     * @param   fieldPrefix             The stem of the html ids for the elements comprising the
     *                                  modal field
     * @param   callbackFunctionPrefix  The name of the callback function which the modal window uses
     *                                  to set the selected item as the association, but minus the
     *                                  language tag at the end
     *
     * @return  boolean
     *
     * @since   3.9.0
     */

Joomla.propagateAssociation = function (fieldPrefix, callbackFunctionPrefix) {
      // Find the id of the record which has been set as an association
      var assocId = document.getElementById(fieldPrefix + "_id").value; // Find the language of the record being edited

document.addEventListener('DOMContentLoaded', function () {
      var associationsEditOptions = Joomla.getOptions('system.associations.edit');
      var formControl = associationsEditOptions.formControl || 'jform';
      var formControlLanguage = document.getElementById(formControl + "_language"); // Hide the associations tab if needed

if (parseInt(associationsEditOptions.hidden, 10) === 1) {
        Joomla.showAssociationMessage();
      } else if (formControlLanguage) {
        // Hide only the associations for the current language
        Joomla.hideAssociation(formControl, formControlLanguage.value);
      } // When changing the language

if (formControlLanguage) {
        formControlLanguage.addEventListener('change', function (_ref) {
          var target = _ref.target;
          // Remove message if any
          Joomla.removeMessages();
          var existsAssociations = false;
          /** For each language, remove the associations, ie,
           *  empty the associations fields and reset the buttons to Select/Create
           */

var controlGroup = [].slice.call(document.querySelectorAll('#associations .control-group'));
          controlGroup.forEach(function (element) {
            var attribute = element.querySelector('.control-label label').getAttribute('for');
            var languageCode = attribute.replace('_name', '').replace('jform_associations_', ''); // Show the association fields

element.classList.remove('hidden'); // Check if there was an association selected for this language

if (!existsAssociations && document.getElementById(formControl + "_associations_" + languageCode + "_id").value !== '') {
              existsAssociations = true;
            } // Call the modal clear button

var clear = document.getElementById(formControl + "_associations_" + languageCode + "_clear");

if (clear.onclick) {
              clear.onclick();
            } else if (clear.click) {
              clear.click();
            }
          }); // If associations existed, send a warning to the user

if (existsAssociations) {
            Joomla.renderMessages({
              warning: [Joomla.Text._('JGLOBAL_ASSOCIATIONS_RESET_WARNING')]
            });
          } // If the selected language is All hide the fields and add a message

var selectedLanguage = target.value;

if (selectedLanguage === '*') {
            Joomla.showAssociationMessage();
          } else {
            // Else show the associations fields/buttons and hide the current selected language
            Joomla.hideAssociation(formControl, selectedLanguage);
          }
        });
      }
    });
  })(Joomla, document);

}());