/**
  * {@inheritdoc}
  */
 public function buildCommentedEntityLinks(FieldableEntityInterface $entity, array &$context)
 {
     $entity_links = array();
     $view_mode = $context['view_mode'];
     if ($view_mode == 'search_index' || $view_mode == 'search_result' || $view_mode == 'print') {
         // Do not add any links if the entity is displayed for:
         // - search indexing.
         // - constructing a search result excerpt.
         // - print.
         return array();
     }
     $fields = $this->commentManager->getFields($entity->getEntityTypeId());
     foreach ($fields as $field_name => $detail) {
         // Skip fields that the entity does not have.
         if (!$entity->hasField($field_name)) {
             continue;
         }
         $links = array();
         $commenting_status = $entity->get($field_name)->status;
         if ($commenting_status != CommentItemInterface::HIDDEN) {
             // Entity has commenting status open or closed.
             $field_definition = $entity->getFieldDefinition($field_name);
             if ($view_mode == 'rss') {
                 // Add a comments RSS element which is a URL to the comments of this
                 // entity.
                 $options = array('fragment' => 'comments', 'absolute' => TRUE);
                 $entity->rss_elements[] = array('key' => 'comments', 'value' => $entity->url('canonical', $options));
             } elseif ($view_mode == 'teaser') {
                 // Teaser view: display the number of comments that have been posted,
                 // or a link to add new comments if the user has permission, the
                 // entity is open to new comments, and there currently are none.
                 if ($this->currentUser->hasPermission('access comments')) {
                     if (!empty($entity->get($field_name)->comment_count)) {
                         $links['comment-comments'] = array('title' => $this->formatPlural($entity->get($field_name)->comment_count, '1 comment', '@count comments'), 'attributes' => array('title' => $this->t('Jump to the first comment of this posting.')), 'fragment' => 'comments', 'url' => $entity->urlInfo());
                         if ($this->moduleHandler->moduleExists('history')) {
                             $links['comment-new-comments'] = array('title' => '', 'url' => Url::fromRoute('<current>'), 'attributes' => array('class' => 'hidden', 'title' => $this->t('Jump to the first new comment of this posting.'), 'data-history-node-last-comment-timestamp' => $entity->get($field_name)->last_comment_timestamp, 'data-history-node-field-name' => $field_name));
                         }
                     }
                 }
                 // Provide a link to new comment form.
                 if ($commenting_status == CommentItemInterface::OPEN) {
                     $comment_form_location = $field_definition->getSetting('form_location');
                     if ($this->currentUser->hasPermission('post comments')) {
                         $links['comment-add'] = array('title' => $this->t('Add new comment'), 'language' => $entity->language(), 'attributes' => array('title' => $this->t('Add a new comment to this page.')), 'fragment' => 'comment-form');
                         if ($comment_form_location == CommentItemInterface::FORM_SEPARATE_PAGE) {
                             $links['comment-add']['url'] = Url::fromRoute('comment.reply', ['entity_type' => $entity->getEntityTypeId(), 'entity' => $entity->id(), 'field_name' => $field_name]);
                         } else {
                             $links['comment-add'] += ['url' => $entity->urlInfo()];
                         }
                     } elseif ($this->currentUser->isAnonymous()) {
                         $links['comment-forbidden'] = array('title' => $this->commentManager->forbiddenMessage($entity, $field_name), 'html' => TRUE);
                     }
                 }
             } else {
                 // Entity in other view modes: add a "post comment" link if the user
                 // is allowed to post comments and if this entity is allowing new
                 // comments.
                 if ($commenting_status == CommentItemInterface::OPEN) {
                     $comment_form_location = $field_definition->getSetting('form_location');
                     if ($this->currentUser->hasPermission('post comments')) {
                         // Show the "post comment" link if the form is on another page, or
                         // if there are existing comments that the link will skip past.
                         if ($comment_form_location == CommentItemInterface::FORM_SEPARATE_PAGE || !empty($entity->get($field_name)->comment_count) && $this->currentUser->hasPermission('access comments')) {
                             $links['comment-add'] = array('title' => $this->t('Add new comment'), 'attributes' => array('title' => $this->t('Share your thoughts and opinions related to this posting.')), 'fragment' => 'comment-form');
                             if ($comment_form_location == CommentItemInterface::FORM_SEPARATE_PAGE) {
                                 $links['comment-add']['url'] = Url::fromRoute('comment.reply', ['entity_type' => $entity->getEntityTypeId(), 'entity' => $entity->id(), 'field_name' => $field_name]);
                             } else {
                                 $links['comment-add']['url'] = $entity->urlInfo();
                             }
                         }
                     } elseif ($this->currentUser->isAnonymous()) {
                         $links['comment-forbidden'] = array('title' => $this->commentManager->forbiddenMessage($entity, $field_name), 'html' => TRUE);
                     }
                 }
             }
         }
         if (!empty($links)) {
             $entity_links['comment__' . $field_name] = array('#theme' => 'links__entity__comment__' . $field_name, '#links' => $links, '#attributes' => array('class' => array('links', 'inline')));
             if ($view_mode == 'teaser' && $this->moduleHandler->moduleExists('history') && $this->currentUser->isAuthenticated()) {
                 $entity_links['comment__' . $field_name]['#attached']['library'][] = 'comment/drupal.node-new-comments-link';
                 // Embed the metadata for the "X new comments" link (if any) on this
                 // entity.
                 $entity_links['comment__' . $field_name]['#post_render_cache']['history_attach_timestamp'] = array(array('node_id' => $entity->id()));
                 $entity_links['comment__' . $field_name]['#post_render_cache']['Drupal\\comment\\CommentViewBuilder::attachNewCommentsLinkMetadata'] = array(array('entity_type' => $entity->getEntityTypeId(), 'entity_id' => $entity->id(), 'field_name' => $field_name));
             }
         }
     }
     return $entity_links;
 }