twig extension for listing notification on a given entity

src/Bundle/ChillMainBundle/Notification/NotificationPresence.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Chill\MainBundle\Notification;
+
+use Chill\MainBundle\Entity\Notification;
+use Chill\MainBundle\Entity\User;
+use Chill\MainBundle\Repository\NotificationRepository;
+use Symfony\Component\Security\Core\Security;
+
+/**
+ * Helps to find if a notification exist for a given entity
+ */
+class NotificationPresence
+{
+    private Security $security;
+
+    private NotificationRepository $notificationRepository;
+
+    public function __construct(Security $security, NotificationRepository $notificationRepository)
+    {
+        $this->security = $security;
+        $this->notificationRepository = $notificationRepository;
+    }
+
+    /**
+     * @return array|Notification[]
+     */
+    public function getNotificationsForClassAndEntity(string $relatedEntityClass, int $relatedEntityId): array
+    {
+        if ($this->security->getUser() instanceof User) {
+            return $this->notificationRepository->findNotificationAsAddresseeByRelatedEntityAndUser(
+                $relatedEntityClass,
+                $relatedEntityId,
+                $this->security->getUser()
+            );
+        }
+
+        return [];
+    }
+}