Feat: Add voter to prevent applications to fully equipped assignments

src/Security/Voter/AssignmentVoter.php

@@ -2,9 +2,11 @@
 
 namespace App\Security\Voter;
 
+use App\Entity\Application;
 use App\Entity\Assignment;
+use App\Entity\Disposition;
 use App\Entity\User;
-use App\Repository\ApplicationRepository;
+use Doctrine\ORM\EntityManagerInterface;
 use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
 use Symfony\Component\Security\Core\Authorization\Voter\Voter;
 
@@ -14,7 +16,7 @@ class AssignmentVoter extends Voter
     public const EDIT = 'EDIT';
     public const APPLY = 'APPLY';
 
-    public function __construct(private readonly ApplicationRepository $applicationRepository)
+    public function __construct(private readonly EntityManagerInterface $entityManager)
     {}
 
     protected function supports(string $attribute, mixed $subject): bool
@@ -38,14 +40,30 @@ class AssignmentVoter extends Voter
             return true;
         }
 
+        /** @var Assignment $assignment */
+        $assignment = $subject;
+
+        // Only allow applications on empty slots
+        $availableSlots = (int) $assignment->getAvailableDispositions();
+        if (0 < $availableSlots) {
+            $dispositions = $this
+                ->entityManager
+                ->getRepository(Disposition::class)
+                ->getCurrentByAssignment($assignment)
+            ;
+
+            return count($dispositions) < $availableSlots;
+        }
+
         // Only teamers without existing applications may apply to the assignment
         if (in_array('ROLE_TEAMER', $token->getRoleNames())) {
             /** @var User $user */
             $user = $token->getUser();
             $teamer = $user->getTeamer();
-            /** @var Assignment $assignment */
-            $assignment = $subject;
-            $application = $this->applicationRepository->findOneBy(['teamer' => $teamer, 'assignment' => $assignment]);
+            $application = $this
+                ->entityManager
+                ->getRepository(Application::class)
+                ->findOneBy(['teamer' => $teamer, 'assignment' => $assignment]);
 
             return null === $application;
         }