NodeSearchHooks.php

<?php

declare (strict_types=1);
namespace Drupal\node\Hook;

use Drupal\Core\Hook\Attribute\Hook;
use Drupal\search\SearchIndexInterface;

/**
 * Hook implementations for node entity operations.
 */
class NodeSearchHooks {
  public function __construct(protected readonly ?SearchIndexInterface $searchIndex = NULL) {
  }
  
  /**
   * Implements hook_node_update().
   */
  public function nodeUpdate($node) : void {
    $this->reindexNodeForSearch($node->id());
  }
  
  /**
   * Implements hook_ENTITY_TYPE_insert() for comment entities.
   */
  public function commentInsert($comment) : void {
    // Reindex the node when comments are added.
    if ($comment->getCommentedEntityTypeId() == 'node') {
      $this->reindexNodeForSearch($comment->getCommentedEntityId());
    }
  }
  
  /**
   * Implements hook_ENTITY_TYPE_update() for comment entities.
   */
  public function commentUpdate($comment) : void {
    // Reindex the node when comments are changed.
    if ($comment->getCommentedEntityTypeId() == 'node') {
      $this->reindexNodeForSearch($comment->getCommentedEntityId());
    }
  }
  
  /**
   * Implements hook_ENTITY_TYPE_delete() for comment entities.
   */
  public function commentDelete($comment) : void {
    // Reindex the node when comments are deleted.
    if ($comment->getCommentedEntityTypeId() == 'node') {
      $this->reindexNodeForSearch($comment->getCommentedEntityId());
    }
  }
  
  /**
   * Reindex a node for search.
   *
   * @param string|int $nid
   *   The node ID to reindex.
   */
  protected function reindexNodeForSearch(string|int $nid) : void {
    // Reindex node context indexed by the node module search plugin.
    $this->searchIndex?->markForReindex('node_search', (int) $nid);
  }

}