class EntityDisplayRebuilder

class EntityDisplayRebuilder implements ContainerInjectionInterface {
    
    /**
     * The field storage config storage.
     *
     * @var \Drupal\Core\Entity\EntityTypeManager
     */
    protected $entityTypeManager;
    
    /**
     * The display repository.
     *
     * @var \Drupal\Core\Entity\EntityDisplayRepository
     */
    protected $entityDisplayRepository;
    
    /**
     * The entity type bundle info.
     *
     * @var \Drupal\Core\Entity\EntityTypeBundleInfoInterface
     */
    protected $entityTypeBundleInfo;
    
    /**
     * Constructs a new EntityDisplayRebuilder.
     *
     * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
     *   The entity manager.
     * @param \Drupal\Core\Entity\EntityDisplayRepositoryInterface $entity_display_repository
     *   The entity display repository.
     * @param \Drupal\Core\Entity\EntityTypeBundleInfoInterface $entity_type_bundle_info
     *   The entity type bundle info.
     */
    public function __construct(EntityTypeManagerInterface $entity_type_manager, EntityDisplayRepositoryInterface $entity_display_repository, EntityTypeBundleInfoInterface $entity_type_bundle_info) {
        $this->entityTypeManager = $entity_type_manager;
        $this->entityDisplayRepository = $entity_display_repository;
        $this->entityTypeBundleInfo = $entity_type_bundle_info;
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container) {
        return new static($container->get('entity_type.manager'), $container->get('entity_display.repository'), $container->get('entity_type.bundle.info'));
    }
    
    /**
     * Rebuild displays for single Entity Type.
     *
     * @param string $entity_type_id
     *   The entity type machine name.
     * @param string $bundle
     *   The bundle we need to rebuild.
     */
    public function rebuildEntityTypeDisplays($entity_type_id, $bundle) {
        // Get the displays.
        $view_modes = $this->entityDisplayRepository
            ->getViewModeOptions($entity_type_id);
        $form_modes = $this->entityDisplayRepository
            ->getFormModeOptions($entity_type_id);
        // Save view mode displays.
        $view_mode_ids = array_map(function ($view_mode) use ($entity_type_id, $bundle) {
            return "{$entity_type_id}.{$bundle}.{$view_mode}";
        }, array_keys($view_modes));
        foreach ($this->entityTypeManager
            ->getStorage('entity_view_display')
            ->loadMultiple($view_mode_ids) as $display) {
            $display->save();
        }
        // Save form mode displays.
        $form_mode_ids = array_map(function ($form_mode) use ($entity_type_id, $bundle) {
            return "{$entity_type_id}.{$bundle}.{$form_mode}";
        }, array_keys($form_modes));
        foreach ($this->entityTypeManager
            ->getStorage('entity_form_display')
            ->loadMultiple($form_mode_ids) as $display) {
            $display->save();
        }
    }

}