materio-d8/web/modules/custom/materio_flag/src/Controller/MaterioFlagController.php

<?php

namespace Drupal\materio_flag\Controller;

use Drupal\Core\Controller\ControllerBase;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\Core\Session\AccountProxy;
use Drupal\Core\Session\AccountProxyInterface;
use Drupal\flag_lists\FlagListsService;
use Drupal\flag_lists\Entity\FlaggingCollection;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\JsonResponse;
/**
 * Class AjaxHomeController.
 */
class MaterioFlagController extends ControllerBase {


  /**
   * @var \Drupal\flag_lists\FlagListsService
   */
  protected $flaglists;

  /**
   * @var \Drupal\user\User
   */
  protected $user;

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static(
      $container->get('flaglists'),
      $container->get('current_user')
    );
  }

  /**
   * Constructs a new MaterioFlagController object.
   */
  public function __construct(FlagListsService $flag_lists_service, AccountProxyInterface $account) {
   $this->flaglists = $flag_lists_service;
   $this->user = $account;
  }

  /**
   * Hello.
   *
   * @return string
   *   Return Hello string.
   */
  public function getUsersFlaggingCollections() {

    $colls = $this->flaglists->getUsersFlaggingCollections();

    $data = [];
    foreach ($colls as $id => $collection) {
      $data[] = array(
        "id" => $id,
        "name" => $collection->getName()
      );
    }

    return new JsonResponse($data);
  }

  public function createUserFlaggingCollection(Request $request) {
    // dpm($request);
    $post_data = json_decode( $request->getContent(),TRUE);
    $name = $post_data['name'];

    $newFlagColl = FlaggingCollection::Create([
      'type' => 'flagging_collection_type',
      'name' => $name,
      'user_id' => $this->user->id(),
      'templateflag' => 'dossier'
    ]);

    $newFlagColl->save();

    $data = [
      'status' => $newFlagColl->get('status')->value,
      'id' => $newFlagColl->id(),
      'name' => $newFlagColl->getName(),
      'newflagcoll_toarray' => $newFlagColl->toArray()
    ];
    return new JsonResponse($data);
  }

  public function deleteUserFlaggingCollection(Request $request) {
    // dpm($request);
    $post_data = json_decode( $request->getContent(),TRUE);
    $flagid = $post_data['flagid'];

    $flagcoll = $this->flaglists->getFlaggingCollectionById($flagid);
    // dump($flagcoll);
    $flagcoll->delete();
    // TODO: warning, sometimes relatedFlag deos not exists
    // $flag = $flagcoll->getRelatedFlag();

    $data = [
      // 'result' => $flag,
      'id' => $flagid
    ];
    return new JsonResponse($data);
  }

}