/**
  * {@inheritDoc}
  */
 public function buildForm(array $form, FormStateInterface $form_state)
 {
     $options = [];
     foreach ($this->manager->getDefinitions() as $plugin_id => $plugin_definition) {
         $options[$plugin_id] = $plugin_definition['label'];
     }
     $form['type'] = ['#type' => 'select', '#title' => $this->t('Pattern type'), '#default_value' => $this->entity->getType(), '#options' => $options, '#required' => TRUE, '#limit_validation_errors' => array(array('type')), '#submit' => array('::submitSelectType'), '#executes_submit_callback' => TRUE, '#ajax' => array('callback' => '::ajaxReplacePatternForm', 'wrapper' => 'pathauto-pattern', 'method' => 'replace')];
     $form['pattern_container'] = ['#type' => 'container', '#prefix' => '<div id="pathauto-pattern">', '#suffix' => '</div>'];
     // if there is no type yet, stop here.
     if ($this->entity->getType()) {
         $alias_type = $this->entity->getAliasType();
         $form['pattern_container']['pattern'] = array('#type' => 'textfield', '#title' => 'Path pattern', '#default_value' => $this->entity->getPattern(), '#size' => 65, '#maxlength' => 1280, '#element_validate' => array('token_element_validate', 'pathauto_pattern_validate'), '#after_build' => array('token_element_validate'), '#token_types' => $alias_type->getTokenTypes(), '#min_tokens' => 1);
         // Show the token help relevant to this pattern type.
         $form['pattern_container']['token_help'] = array('#theme' => 'token_tree_link', '#token_types' => $alias_type->getTokenTypes());
         // Expose bundle and language conditions.
         if ($alias_type->getDerivativeId() && ($entity_type = $this->entityTypeManager->getDefinition($alias_type->getDerivativeId()))) {
             $default_bundles = [];
             $default_languages = [];
             foreach ($this->entity->getSelectionConditions() as $condition_id => $condition) {
                 if (in_array($condition->getPluginId(), ['entity_bundle:' . $entity_type->id(), 'node_type'])) {
                     $default_bundles = $condition->getConfiguration()['bundles'];
                 } elseif ($condition->getPluginId() == 'language') {
                     $default_languages = $condition->getConfiguration()['langcodes'];
                 }
             }
             if ($entity_type->hasKey('bundle') && ($bundles = $this->entityTypeBundleInfo->getBundleInfo($entity_type->id()))) {
                 $bundle_options = [];
                 foreach ($bundles as $id => $info) {
                     $bundle_options[$id] = $info['label'];
                 }
                 $form['pattern_container']['bundles'] = array('#title' => $entity_type->getBundleLabel(), '#type' => 'checkboxes', '#options' => $bundle_options, '#default_value' => $default_bundles, '#description' => t('Check to which types this pattern should be applied. Leave empty to allow any.'));
             }
             if ($this->languageManager->isMultilingual() && $entity_type->isTranslatable()) {
                 $language_options = [];
                 foreach ($this->languageManager->getLanguages() as $id => $language) {
                     $language_options[$id] = $language->getName();
                 }
                 $form['pattern_container']['languages'] = array('#title' => $this->t('Languages'), '#type' => 'checkboxes', '#options' => $language_options, '#default_value' => $default_languages, '#description' => t('Check to which languages this pattern should be applied. Leave empty to allow any.'));
             }
         }
     }
     $form['label'] = array('#type' => 'textfield', '#title' => $this->t('Label'), '#maxlength' => 255, '#default_value' => $this->entity->label(), '#required' => TRUE);
     $form['id'] = array('#type' => 'machine_name', '#title' => $this->t('ID'), '#maxlength' => 255, '#default_value' => $this->entity->id(), '#required' => TRUE, '#disabled' => !$this->entity->isNew(), '#machine_name' => array('exists' => 'Drupal\\pathauto\\Entity\\PathautoPattern::load'));
     $form['status'] = ['#title' => $this->t('Enabled'), '#type' => 'checkbox', '#default_value' => $this->entity->status()];
     return parent::buildForm($form, $form_state);
 }