rng-3.x-dev/src/Form/MessageActionForm.php

<?php

namespace Drupal\rng\Form;

use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Action\ActionManager;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\rng\EventManagerInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\rng\Entity\RuleComponent;
use Drupal\rng\Entity\Rule;

/**
 * Creates a rule with a rng_courier_message action.
 */
class MessageActionForm extends FormBase {

  /**
   * @var \Drupal\rng\Plugin\Action\CourierTemplateCollection
   */
  protected $actionPlugin;

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * The RNG event manager.
   *
   * @var \Drupal\rng\EventManagerInterface
   */
  protected $eventManager;

  /**
   * Constructs a new MessageActionForm object.
   *
   * @param \Drupal\Core\Action\ActionManager $action_manager
   *   The action manager.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   * @param \Drupal\rng\EventManagerInterface $event_manager
   *   The RNG event manager.
   */
  public function __construct(ActionManager $action_manager, EntityTypeManagerInterface $entity_type_manager, EventManagerInterface $event_manager) {
    $this->actionPlugin = $action_manager->createInstance('rng_courier_message');
    $this->entityTypeManager = $entity_type_manager;
    $this->eventManager = $event_manager;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static(
      $container->get('plugin.manager.action'),
      $container->get('entity_type.manager'),
      $container->get('rng.event_manager')
    );
  }

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'rng_event_message_create';
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state, EntityInterface $rng_event = NULL) {
    $event = clone $rng_event;
    $this->actionPlugin->setConfiguration(['active' => FALSE]);
    $form_state->set('event', $event);

    $triggers = [
      'rng:custom:date' => $this->t('To all registrations, on a date.'),
      (string) $this->t('Registrations') => [
        'entity:registration:new' => $this->t('To a single registration, when it is created.'),
        'entity:registration:update' => $this->t('To a single registration, when it is updated.'),
      ],
    ];

    $form['trigger'] = [
      '#type' => 'select',
      '#title' => $this->t('Trigger'),
      '#description' => $this->t('When should this message be sent?'),
      '#options' => $triggers,
      '#default_value' => 'now',
    ];

    $form['actions'] = ['#type' => 'actions'];
    $form['actions']['submit'] = [
      '#type' => 'submit',
      '#value' => t('Create message'),
    ];
    $form['actions']['cancel'] = [
      '#type' => 'link',
      '#title' => $this->t('Cancel'),
      '#url' => Url::fromRoute(
        'rng.event.' . $event->getEntityTypeId() . '.messages',
        [$event->getEntityTypeId() => $event->id()]
      ),
    ];

    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $this->actionPlugin->submitConfigurationForm($form, $form_state);

    if (!$template_collection = $this->actionPlugin->getTemplateCollection()) {
      $this->messenger()->addMessage(t('Unable to create templates.', 'error'));
      return;
    }

    $event = $form_state->get('event');
    $context = $this->entityTypeManager->getStorage('courier_context')
      ->load('rng_registration_' . $event->getEntityTypeId());
    if (!$context) {
      throw new \Exception(sprintf('No context available for %s', $event->getEntityTypeId()));
    }
    $template_collection->setContext($context);
    $template_collection->setOwner($event);
    $template_collection->save();
    $this->messenger()->addMessage(t('Templates created.'));

    $action = RuleComponent::create([])
      ->setPluginId($this->actionPlugin->getPluginId())
      ->setConfiguration($this->actionPlugin->getConfiguration())
      ->setType('action');

    $trigger_id = $form_state->getValue('trigger');

    $rule = Rule::create([
      'event' => ['entity' => $event],
      'trigger_id' => $trigger_id,
    ]);
    $rule->save();
    $action->setRule($rule)->save();

    if ($trigger_id == 'rng:custom:date') {
      $rule_component = RuleComponent::create()
        ->setRule($rule)
        ->setType('condition')
        ->setPluginId('rng_rule_scheduler');
      $rule_component->save();

      // Save the ID into config.
      $rule_component->setConfiguration([
        'rng_rule_component' => $rule_component->id(),
      ]);
      $rule_component->save();
    }

    $entity_type = $event->getEntityTypeId();
    $form_state->setRedirectUrl(Url::fromRoute('rng.event.' . $entity_type . '.messages', [
      $entity_type => $event->id(),
    ]));
  }

}