class TaxonomyTestHooks

class TaxonomyTestHooks {
  
  /**
   * Implements hook_entity_access().
   */
  public function entityAccess(EntityInterface $entity, string $operation, AccountInterface $account) : AccessResultInterface {
    if ($entity instanceof TermInterface) {
      $parts = explode(' ', (string) $entity->label());
      if (in_array('Inaccessible', $parts, TRUE) && in_array($operation, $parts, TRUE)) {
        return AccessResult::forbidden();
      }
    }
    return AccessResult::neutral();
  }
  
  /**
   * Implements hook_query_alter().
   */
  public function queryAlter(AlterableInterface $query) : void {
    $value = \Drupal::state()->get('taxonomy_test_query_alter');
    if (isset($value)) {
      \Drupal::state()->set('taxonomy_test_query_alter', ++$value);
    }
  }
  
  /**
   * Implements hook_query_TAG_alter().
   */
  public function queryTermAccessAlter(AlterableInterface $query) : void {
    $value = \Drupal::state()->get('taxonomy_test_query_term_access_alter');
    if (isset($value)) {
      \Drupal::state()->set('taxonomy_test_query_term_access_alter', ++$value);
    }
  }
  
  /**
   * Implements hook_query_TAG_alter().
   */
  public function queryTaxonomyTermAccessAlter(AlterableInterface $query) : void {
    $value = \Drupal::state()->get('taxonomy_test_query_taxonomy_term_access_alter');
    if (isset($value)) {
      \Drupal::state()->set('taxonomy_test_query_taxonomy_term_access_alter', ++$value);
    }
  }
  
  /**
   * Implements hook_form_BASE_FORM_ID_alter() for the taxonomy term form.
   */
  public function formTaxonomyTermFormAlter(&$form, FormStateInterface $form_state, $form_id) : void {
    if (\Drupal::state()->get('taxonomy_test.disable_parent_form_element', FALSE)) {
      $form['relations']['parent']['#disabled'] = TRUE;
    }
  }
  
  /**
   * Implements hook_ENTITY_TYPE_load() for the taxonomy term.
   */
  public function taxonomyTermLoad($entities) : void {
    $value = \Drupal::state()->get('taxonomy_test_taxonomy_term_load');
    // Only record loaded terms is the test has set this to an empty array.
    if (is_array($value)) {
      $value = array_merge($value, array_keys($entities));
      \Drupal::state()->set('taxonomy_test_taxonomy_term_load', array_unique($value));
    }
  }

}