Add a counter for invitations awaiting reply

src/Bundle/ChillCalendarBundle/Repository/InviteRepository.php

@@ -75,6 +75,25 @@ class InviteRepository implements ObjectRepository
             ->getSingleScalarResult();
     }
 
+    public function countPendingInvitesByUser(User $user): int
+    {
+        $qb = $this->entityRepository->createQueryBuilder('i');
+
+        $qb->select('COUNT(i)')
+            ->where(
+                $qb->expr()->andX(
+                    $qb->expr()->eq('i.user', ':user'),
+                    $qb->expr()->eq('i.status', ':status')
+                )
+            )
+            ->setParameters([
+                'user' => $user,
+                'status' => Invite::PENDING,
+            ]);
+
+        return $qb->getQuery()->getSingleScalarResult();
+    }
+
     public function buildAcceptedInviteByUserAndDateRangeQuery(User $user, \DateTimeImmutable $from, \DateTimeImmutable $to)
     {
         $qb = $this->entityRepository->createQueryBuilder('i');