taxonomy_menu_sync-1.0.4/src/Form/TaxonomyMenuSyncForm.php

<?php

namespace Drupal\taxonomy_menu_sync\Form;

use Drupal\Core\Entity\ContentEntityForm;
use Drupal\Core\Form\FormStateInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Create a new menu configurations.
 */
class TaxonomyMenuSyncForm extends ContentEntityForm {

  /**
   * @var \Drupal\taxonomy_menu_sync\TaxonomyMenuSyncHelper
   */
  protected $localHelper;

  /**
   * {@inheritDoc}
   */
  public static function create(ContainerInterface $container) {
    $instance = parent::create($container);
    $instance->localHelper = $container->get('taxonomy_menu_sync.helper');
    return $instance;
  }

  /**
   * {@inheritDoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state) {
    $form = parent::buildForm($form, $form_state);
    $target_menu = '';
    $default_menu_list = $this->localHelper->getMenuList();
    if (!$this->entity->get('target_menu')->isEmpty()) {
      $default_target_menu = $this->entity->get('target_menu')->target_id;
      $default_menu_list = [$default_target_menu => $default_menu_list[$default_target_menu]];
    }

    $target_menu_field = $form_state->getValue('target_menu');
    if (!empty($target_menu_field) && !empty($target_menu = $target_menu_field[0]['target_id'])) {
      $menus = $form['target_menu']['widget']['#options'];
      $default_menu_list = [$target_menu => $menus[$target_menu]];
      $target_menu_item_field = $form_state->getValue('target_menu_item');
      if (!empty($target_menu_item_field) && !empty($target_menu_item = $target_menu_item_field[0]['value'])) {
        $form['target_menu_item']['widget']['#default_value'] = $target_menu_item;
      }
    }

    $form['target_menu_item']['widget']['#options'] = $this->getTargetMenuOptions($default_menu_list, $target_menu);
    $form['target_menu_item']['widget']['#empty_option'] = '- Select a value -';
    $form['target_menu_item']['widget']['#empty_value'] = '_none';

    $form['target_menu']['widget']['#ajax'] = [
      'callback' => [$this, 'ajaxCallbackTargetMenu'],
      'wrapper' => 'taxonomy-menu-sync-target-menu-wrapper',
    ];

    $form['target_menu_item']['#prefix'] = '<div id="taxonomy-menu-sync-target-menu-wrapper">';
    $form['target_menu_item']['#suffix'] = '</div>';
    return $form;
  }

  /**
   * Update Target menu item field on Target menu change.
   */
  public function ajaxCallbackTargetMenu(array $form, FormStateInterface $form_state) {
    return $form['target_menu_item'];
  }

  /**
   * {@inheritDoc}
   */
  public function validateForm(array &$form, FormStateInterface $form_state) {
    parent::validateForm($form, $form_state);
    $form_values = $form_state->getValues();

    $vocabulary = $form_values['source_vocabulary'][0]['target_id'] ?? '';
    $term_id = $form_values['source_term'][0]['target_id'] ?? '';
    if (!empty($vocabulary) && !empty($term_id)) {
      if (!$this->localHelper->verifyTermId($vocabulary, $term_id)) {
        $form_state->setErrorByName('source_term', $this->t('Invalid taxonomy term id, not associated with the %vocab vocabulary.', ['%vocab' => $vocabulary]));
      }
    }
  }

  /**
   * {@inheritDoc}
   */
  public function save(array $form, FormStateInterface $form_state) {
    $status = parent::save($form, $form_state);
    $entity = $this->entity;
    if ($status == SAVED_UPDATED) {
      $this->messenger()
        ->addMessage($this->t('Taxonomy menu sync %title has been updated.', ['%title' => $entity->toLink()->toString()]));
    }
    else {
      $this->messenger()
        ->addMessage($this->t('Taxonomy menu sync %title has been added.', ['%title' => $entity->toLink()->toString()]));
    }

    $form_state->setRedirectUrl($this->entity->toUrl('collection'));
  }

  /**
   * Get the menu item lists.
   *
   * @param array $menus
   *   An array of menu list.
   * @param string $target_menu
   *   A string of target menu.
   *
   * @return array
   *   Menu item options.
   */
  public function getTargetMenuOptions(array $menus, string $target_menu = ''): array {
    $options = $this->localHelper->getMenuLinkContentList($menus);
    $mapping = $this->entity->getMapping();
    $menu = $this->entity->get('target_menu')->target_id;
    $allow = empty($target_menu) || $menu === $target_menu;

    if (!empty($mapping) && !empty($menu) && $allow) {
      foreach ($mapping as $value) {
        $unset_string = "$menu:menu_link_content:" . $value['uuid'] ?? '';
        unset($options[$unset_string]);
      }
    }
    return $options;
  }

}