fixed code style

Closes #3374300

src/Controller/ReferralLink.php

@@ -2,37 +2,111 @@
 
 namespace Drupal\commerce_user_points\Controller;
 
+use Drupal\commerce_user_points\ReferralLinkService;
+use Drupal\Component\DependencyInjection\ContainerInterface;
 use Drupal\Core\Controller\ControllerBase;
-use Symfony\Component\HttpFoundation\RedirectResponse;
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Drupal\Core\Form\FormBuilderInterface;
+use Drupal\Core\Http\RequestStack;
+use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\Url;
+use Symfony\Component\HttpFoundation\RedirectResponse;
 
 /**
  * Controller for register user by referral link.
  */
 class ReferralLink extends ControllerBase {
 
+  /**
+   * The entity type manager.
+   *
+   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
+   */
+  protected $entityTypeManager;
+
+  /**
+   * The current user service.
+   *
+   * @var \Drupal\Core\Session\AccountInterface
+   */
+  protected $currentUser;
+
+  /**
+   * The request stack service.
+   *
+   * @var \Symfony\Component\HttpFoundation\RequestStack
+   */
+  protected $requestStack;
+
+  /**
+   * The referral link service.
+   *
+   * @var \Drupal\commerce_user_points\ReferralLinkService
+   */
+  protected $referralLinkService;
+
+  /**
+   * The form bulider service.
+   *
+   * @var \Drupal\Core\Form\FormBuilderInterface
+   */
+  protected $formBuilder;
+
+  /**
+   * Services constructor.
+   *
+   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entityTypeManager
+   *   The entity type manager.
+   * @param \Drupal\Core\Session\AccountInterface $currentUser
+   *   The current user service.
+   * @param \Symfony\Component\HttpFoundation\RequestStack $requestStack
+   *   The request stack.
+   * @param \Drupal\commerce_user_points\ReferralLinkService $referralLinkService
+   *   The referral link service.
+   * @param \Drupal\Core\Form\FormBuilderInterface $formBuilder
+   *   The form builder service.
+   */
+  public function __construct(EntityTypeManagerInterface $entityTypeManager, AccountInterface $currentUser, RequestStack $requestStack, ReferralLinkService $referralLinkService, FormBuilderInterface $formBuilder) {
+    $this->entityTypeManager = $entityTypeManager;
+    $this->currentUser = $currentUser;
+    $this->requestStack = $requestStack;
+    $this->referralLinkService = $referralLinkService;
+    $this->formBuilder = $formBuilder;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    // Load the service from the container.
+    return new static(
+      $container->get('commerce_user_points.referral_link')
+    );
+  }
+
   /**
    * Referral Registration Form.
    */
   public function registration() {
 
-    $uid = \Drupal::currentUser()->id();
+    $uid = $this->currentUser->id();
     // Get current url of referral link page.
-    $current_path = \Drupal::request()->getRequestUri();
+    $currentRequest = $this->requestStack->getCurrentRequest();
+    $current_path = $currentRequest->getRequestUri();
     $pathParameters = explode("referral/", $current_path);
     if (isset($pathParameters[1]) && !empty($pathParameters[1])) {
-      $referralService = \Drupal::service('commerce_user_points.referral_link');
+      $referralService = $this->referralLinkService;
       $link = $referralService->getLink('referral_link_code', $pathParameters[1]);
 
       if ($link != NULL && $uid == NULL) {
         // Render registration form.
-        $entity = \Drupal::entityTypeManager()
+        $entity = $this->entityTypeManager
           ->getStorage('user')
           ->create([]);
-        $formObject = \Drupal::entityTypeManager()
+        $formObject = $this->entityTypeManager
           ->getFormObject('user', 'register')
           ->setEntity($entity);
-        return \Drupal::formBuilder()->getForm($formObject);
+        return $this->formBuilder->getForm($formObject);
       }
       else {
         $frontPage = Url::fromRoute('<front>')->setAbsolute()->toString();