feat: refactoring and cleanup

src/Form/Service/ParticipantTransportationOutboundFieldHandler.php

@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace App\Form\Service;
 
-use App\BusProNet\Model\Service;
 use App\BusProNet\Utility\DirectionMapper;
 use App\Form\Model\BookingDto;
 use App\Form\Service\Abstract\AbstractParticipantFieldHandler;
@@ -57,43 +56,7 @@ class ParticipantTransportationOutboundFieldHandler extends AbstractParticipantF
             true // filter available
         );
 
-        // Validate and convert selection to Service object
-        $validSelection = null;
-        if (null !== $selectedTransportation) {
-            $validSelection = $this->findValidTransportationService(
-                $selectedTransportation,
-                $availableServices
-            );
-        }
-
-        // Update participant with validated selection
-        $participant->transportationOutbound = $validSelection;
-    }
-
-    /**
-     * Finds a valid transportation service from available services.
-     *
-     * @param mixed               $selectedServiceId The submitted service ID
-     * @param array<int, Service> $availableServices Array of available transportation services
-     *
-     * @return Service|null The valid service object, or null if invalid
-     */
-    private function findValidTransportationService(
-        mixed $selectedServiceId,
-        array $availableServices,
-    ): ?Service {
-        if (null === $selectedServiceId || false === is_string($selectedServiceId) && false === is_int($selectedServiceId)) {
-            return null;
-        }
-
-        $serviceId = (int) $selectedServiceId;
-
-        foreach ($availableServices as $service) {
-            if ($service->id === $serviceId) {
-                return $service;
-            }
-        }
-
-        return null;
+        // Validate and update participant with selection
+        $participant->transportationOutbound = $this->findItemById($selectedTransportation, $availableServices);
     }
 }