recurring_events-2.0.x-dev/src/Form/EventInstanceRevisionRevertForm.php

<?php

declare(strict_types=1);

namespace Drupal\recurring_events\Form;

use Drupal\Component\Datetime\TimeInterface;
use Drupal\Core\Datetime\DateFormatterInterface;
use Drupal\Core\DependencyInjection\AutowireTrait;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Form\ConfirmFormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\StringTranslation\StringTranslationTrait;
use Drupal\Core\Url;
use Drupal\recurring_events\EventInstanceStorageTrait;
use Drupal\recurring_events\EventInterface;

/**
 * Provides a form for reverting an eventinstance revision.
 *
 * @ingroup recurring_events
 */
class EventInstanceRevisionRevertForm extends ConfirmFormBase {

  use AutowireTrait;
  use EventInstanceStorageTrait;
  use StringTranslationTrait;

  /**
   * The eventinstance revision.
   *
   * @var \Drupal\recurring_events\EventInterface
   */
  protected $revision;

  public function __construct(
    EntityTypeManagerInterface $entityTypeManager,
    protected DateFormatterInterface $dateFormatter,
    protected TimeInterface $time,
  ) {
    $this->entityTypeManager = $entityTypeManager;
  }

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

  /**
   * {@inheritdoc}
   */
  public function getQuestion() {
    return $this->t('Are you sure you want to revert to the revision from %revision-date?', ['%revision-date' => $this->dateFormatter->format($this->revision->getRevisionCreationTime())]);
  }

  /**
   * {@inheritdoc}
   */
  public function getCancelUrl() {
    return new Url('entity.eventinstance.version_history', ['eventinstance' => $this->revision->id()]);
  }

  /**
   * {@inheritdoc}
   */
  public function getConfirmText() {
    return $this->t('Revert');
  }

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

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state, $eventinstance_revision = NULL) {
    $this->revision = $this->eventInstanceStorage()->loadRevision($eventinstance_revision);
    return parent::buildForm($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    // The revision timestamp will be updated when the revision is saved. Keep
    // the original one for the confirmation message.
    $original_revision_timestamp = $this->revision->getRevisionCreationTime();

    $this->revision = $this->prepareRevertedRevision($this->revision, $form_state);
    $this->revision->revision_log = $this->t('Copy of the revision from %date.', ['%date' => $this->dateFormatter->format($original_revision_timestamp)]);
    $this->revision->save();

    $this->logger('content')->notice('eventinstance: reverted %title revision %revision.', [
      '%title' => $this->revision->label(),
      '%revision' => $this->revision->getRevisionId(),
    ]);
    $this->messenger()->addMessage($this->t('eventinstance %title has been reverted to the revision from %revision-date.', [
      '%title' => $this->revision->label(),
      '%revision-date' => $this->dateFormatter->format($original_revision_timestamp),
    ]));
    $form_state->setRedirect(
      'entity.eventinstance.version_history',
      ['eventinstance' => $this->revision->id()]
    );
  }

  /**
   * Prepares a revision to be reverted.
   *
   * @param \Drupal\recurring_events\EventInterface $revision
   *   The revision to be reverted.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   *
   * @return \Drupal\recurring_events\EventInterface
   *   The prepared revision ready to be stored.
   */
  protected function prepareRevertedRevision(EventInterface $revision, FormStateInterface $form_state) {
    $revision->setNewRevision();
    $revision->isDefaultRevision(TRUE);
    $revision->setRevisionCreationTime($this->time->getRequestTime());

    return $revision;
  }

}