ckeditor_mentions-8.x-2.x-dev/src/Controller/CKMentionsController.php

<?php

namespace Drupal\ckeditor_mentions\Controller;

use Drupal\ckeditor_mentions\MentionsType\MentionsTypeManagerInterface;
use Drupal\Core\Controller\ControllerBase;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\JsonResponse;

/**
 * Route callback for matches.
 */
class CKMentionsController extends ControllerBase {

  /**
   * CKMentionsController constructor.
   */
  public function __construct(
    protected MentionsTypeManagerInterface $mentionsManager,
  ) {}

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container): self {
    return new static(
      $container->get('plugin.manager.mentions_type'),
    );
  }

  /**
   * Return a list of suggestions based in the keyword provided by the user.
   *
   * @param string $editor_id
   *   The editor id.
   * @param string $plugin_id
   *   The plugin id.
   * @param string $match
   *   Match value.
   *
   * @return \Symfony\Component\HttpFoundation\JsonResponse
   *   Json of matches.
   */
  public function getMatch(string $editor_id, string $plugin_id, string $match = ''): JsonResponse {
    // Replace nbsp with real spaces.
    $match = str_replace("\xc2\xa0", ' ', $match);

    // Load the editor to get plugin configuration.
    $editor = $this->entityTypeManager()->getStorage('editor')->load($editor_id);
    if (!$editor) {
      return new JsonResponse(['error' => 'Editor not found'], 404);
    }

    // Get the mentions plugin configuration from the editor.
    $editorSettings = $editor->getSettings();
    $pluginConfig = [];
    if (isset($editorSettings['plugins']['ckeditor_mentions_mentions']['plugins'][$plugin_id])) {
      $pluginConfig = $editorSettings['plugins']['ckeditor_mentions_mentions']['plugins'][$plugin_id];
    }

    $configuration = ['match' => $match] + $pluginConfig;

    /** @var \Drupal\ckeditor_mentions\MentionsType\MentionsTypeBase $plugin */
    $plugin = $this->mentionsManager->createInstance($plugin_id, $configuration);

    // Convert the result to an array, the CKEditor5 JS Plugin can't iterate
    // over the results otherwise.
    $response = array_values($plugin->buildResponse());

    return new JsonResponse($response);
  }

}