{% extends "base/class.php.twig" %}

{% block file_path %}
\Drupal\{{module}}\Controller\{{ entity_class }}Controller.
{% endblock %}

{% block namespace_class %}
namespace Drupal\{{ module }}\Controller;
{% endblock %}

{% block use_class %}
use Drupal\Component\Utility\Xss;
use Drupal\Core\Controller\ControllerBase;
use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
use Drupal\Core\Url;
use Drupal\{{ module }}\Entity\{{ entity_class }}Interface;
{% endblock %}
{% block class_declaration %}
/**
 * Class {{ entity_class }}Controller.
 *
 *  Returns responses for {{ label }} routes.
 */
class {{ entity_class }}Controller extends ControllerBase implements ContainerInjectionInterface {% endblock %}

{% block class_methods %}
  /**
   * Displays a {{ label }}  revision.
   *
   * @param int ${{ entity_name }}_revision
   *   The {{ label }}  revision ID.
   *
   * @return array
   *   An array suitable for drupal_render().
   */
  public function revisionShow(${{ entity_name }}_revision) {
    ${{ entity_name }} = $this->entityManager()->getStorage('{{ entity_name }}')->loadRevision(${{ entity_name }}_revision);
    $view_builder = $this->entityManager()->getViewBuilder('{{ entity_name }}');

    return $view_builder->view(${{ entity_name }});
  }

  /**
   * Page title callback for a {{ label }}  revision.
   *
   * @param int ${{ entity_name }}_revision
   *   The {{ label }}  revision ID.
   *
   * @return string
   *   The page title.
   */
  public function revisionPageTitle(${{ entity_name }}_revision) {
    ${{ entity_name }} = $this->entityManager()->getStorage('{{ entity_name }}')->loadRevision(${{ entity_name }}_revision);
    return $this->t('Revision of %title from %date', ['%title' => ${{ entity_name }}->label(), '%date' => format_date(${{ entity_name }}->getRevisionCreationTime())]);
  }

  /**
   * Generates an overview table of older revisions of a {{ label }} .
   *
   * @param \Drupal\{{ module }}\Entity\{{ entity_class }}Interface ${{ entity_name }}
   *   A {{ label }}  object.
   *
   * @return array
   *   An array as expected by drupal_render().
   */
  public function revisionOverview({{ entity_class }}Interface ${{ entity_name }}) {
    $account = $this->currentUser();
    $langcode = ${{ entity_name }}->language()->getId();
    $langname = ${{ entity_name }}->language()->getName();
    $languages = ${{ entity_name }}->getTranslationLanguages();
    $has_translations = (count($languages) > 1);
    ${{ entity_name }}_storage = $this->entityManager()->getStorage('{{ entity_name }}');

    $build['#title'] = $has_translations ? $this->t('@langname revisions for %title', ['@langname' => $langname, '%title' => ${{ entity_name }}->label()]) : $this->t('Revisions for %title', ['%title' => ${{ entity_name }}->label()]);
    $header = [$this->t('Revision'), $this->t('Operations')];

    $revert_permission = (($account->hasPermission("revert all {{ label|lower }} revisions") || $account->hasPermission('administer {{ label|lower }} entities')));
    $delete_permission = (($account->hasPermission("delete all {{ label|lower }} revisions") || $account->hasPermission('administer {{ label|lower }} entities')));

    $rows = [];

    $vids = ${{ entity_name }}_storage->revisionIds(${{ entity_name }});

    $latest_revision = TRUE;

    foreach (array_reverse($vids) as $vid) {
      /** @var \Drupal\{{ module }}\{{ entity_class }}Interface $revision */
      $revision = ${{ entity_name }}_storage->loadRevision($vid);
      // Only show revisions that are affected by the language that is being
      // displayed.
      if ($revision->hasTranslation($langcode) && $revision->getTranslation($langcode)->isRevisionTranslationAffected()) {
        $username = [
          '#theme' => 'username',
          '#account' => $revision->getRevisionUser(),
        ];

        // Use revision link to link to revisions that are not active.
        $date = \Drupal::service('date.formatter')->format($revision->getRevisionCreationTime(), 'short');
        if ($vid != ${{ entity_name }}->getRevisionId()) {
          $link = $this->l($date, new Url('entity.{{ entity_name }}.revision', ['{{ entity_name }}' => ${{ entity_name }}->id(), '{{ entity_name }}_revision' => $vid]));
        }
        else {
          $link = ${{ entity_name }}->link($date);
        }

        $row = [];
        $column = [
          'data' => [
            '#type' => 'inline_template',
            '#template' => '{{  '{% trans %}{{ date }} by {{ username }}{% endtrans %}{% if message %}<p class="revision-log">{{ message }}</p>{% endif %}' }}',
            '#context' => [
              'date' => $link,
              'username' => \Drupal::service('renderer')->renderPlain($username),
              'message' => ['#markup' => $revision->getRevisionLogMessage(), '#allowed_tags' => Xss::getHtmlTagList()],
            ],
          ],
        ];
        $row[] = $column;

        if ($latest_revision) {
          $row[] = [
            'data' => [
              '#prefix' => '<em>',
              '#markup' => $this->t('Current revision'),
              '#suffix' => '</em>',
            ],
          ];
          foreach ($row as &$current) {
            $current['class'] = ['revision-current'];
          }
          $latest_revision = FALSE;
        }
        else {
          $links = [];
          if ($revert_permission) {
            $links['revert'] = [
              'title' => $this->t('Revert'),
{% if is_translatable %}
              'url' => $has_translations ?
              Url::fromRoute('entity.{{ entity_name }}.translation_revert', ['{{ entity_name }}' => ${{ entity_name }}->id(), '{{ entity_name }}_revision' => $vid, 'langcode' => $langcode]) :
              Url::fromRoute('entity.{{ entity_name }}.revision_revert', ['{{ entity_name }}' => ${{ entity_name }}->id(), '{{ entity_name }}_revision' => $vid]),
{%  else %}
              'url' => Url::fromRoute('entity.{{ entity_name }}.revision_revert', ['{{ entity_name }}' => ${{ entity_name }}->id(), '{{ entity_name }}_revision' => $vid]),
{% endif %}
            ];
          }

          if ($delete_permission) {
            $links['delete'] = [
              'title' => $this->t('Delete'),
              'url' => Url::fromRoute('entity.{{ entity_name }}.revision_delete', ['{{ entity_name }}' => ${{ entity_name }}->id(), '{{ entity_name }}_revision' => $vid]),
            ];
          }

          $row[] = [
            'data' => [
              '#type' => 'operations',
              '#links' => $links,
            ],
          ];
        }

        $rows[] = $row;
      }
    }

    $build['{{ entity_name }}_revisions_table'] = [
      '#theme' => 'table',
      '#rows' => $rows,
      '#header' => $header,
    ];

    return $build;
  }
{% endblock %}