class ReactionRuleAddForm

class ReactionRuleAddForm extends RulesComponentFormBase {
    use AddEventFormTrait;
    
    /**
     * Constructs a new reaction rule form.
     *
     * @param \Drupal\rules\Engine\ExpressionManagerInterface $expression_manager
     *   The expression manager.
     * @param \Drupal\rules\Core\RulesEventManager $event_manager
     *   The Rules event manager.
     * @param \Drupal\Core\Entity\EntityTypeBundleInfoInterface $entity_bundle_info
     *   The entity type bundle information manager.
     */
    public function __construct(ExpressionManagerInterface $expression_manager, RulesEventManager $event_manager, EntityTypeBundleInfoInterface $entity_bundle_info) {
        parent::__construct($expression_manager);
        $this->eventManager = $event_manager;
        $this->entityBundleInfo = $entity_bundle_info;
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container) {
        return new static($container->get('plugin.manager.rules_expression'), $container->get('plugin.manager.rules_event'), $container->get('entity_type.bundle.info'));
    }
    
    /**
     * {@inheritdoc}
     */
    protected function actions(array $form, FormStateInterface $form_state) {
        $actions = parent::actions($form, $form_state);
        $actions['submit']['#value'] = $this->t('Save');
        return $actions;
    }
    
    /**
     * {@inheritdoc}
     */
    public function form(array $form, FormStateInterface $form_state) {
        return $this->buildEventForm($form, $form_state) + parent::form($form, $form_state);
    }
    
    /**
     * {@inheritdoc}
     */
    public function save(array $form, FormStateInterface $form_state) {
        parent::save($form, $form_state);
        $this->messenger()
            ->addMessage($this->t('Reaction rule %label has been created.', [
            '%label' => $this->entity
                ->label(),
        ]));
        $form_state->setRedirect('entity.rules_reaction_rule.edit_form', [
            'rules_reaction_rule' => $this->entity
                ->id(),
        ]);
    }

}