wip: conditional mandatory body dimensions

src/Form/Model/ParticipantDto.php

@@ -7,8 +7,10 @@ use App\BusProNet\Model\Pickup;
 use App\BusProNet\Model\Service;
 use App\Validator\Constraints as AppAssert;
 use Symfony\Component\Validator\Constraints as Assert;
+use Symfony\Component\Validator\Context\ExecutionContextInterface;
 
 #[AppAssert\Participant(groups: ['booking_edit'])]
+#[Assert\Callback('validateBodyDimensionsForRentals', groups: ['booking_create_step_2', 'booking_edit'])]
 class ParticipantDto
 {
     public ?int $index = null;
@@ -25,6 +27,7 @@ class ParticipantDto
     public ?string $title = null;
     public ?string $gender = null;
     public ?string $nationality = null;
+
     public ?string $height = null;
     public ?string $shoeSize = null;
     public ?string $weight = null;
@@ -81,4 +84,44 @@ class ParticipantDto
     {
         return 'O' === $this->status;
     }
+
+    /**
+     * Validates that body dimension fields are provided when rental services are selected.
+     *
+     * This callback validator ensures that height, weight, and shoe size are mandatory
+     * when the participant has selected any rental services. This is required for
+     * proper equipment sizing and rental fulfillment.
+     *
+     * @param ExecutionContextInterface $context The validation context
+     */
+    public function validateBodyDimensionsForRentals(ExecutionContextInterface $context): void
+    {
+        $rentals = $this->rentals ?? [];
+
+        // If no rental services are selected, body dimensions are not required
+        if (empty($rentals)) {
+            return;
+        }
+
+        // Validate height field
+        if (true === empty($this->height)) {
+            $context->buildViolation('Deine Körpergröße ist erforderlich wenn Leihmaterial ausgewählt wurde')
+                ->atPath('height')
+                ->addViolation();
+        }
+
+        // Validate weight field
+        if (true === empty($this->weight)) {
+            $context->buildViolation('Dein Gewicht ist erforderlich wenn Leihmaterial ausgewählt wurde')
+                ->atPath('weight')
+                ->addViolation();
+        }
+
+        // Validate shoe size field
+        if (true === empty($this->shoeSize)) {
+            $context->buildViolation('Deine Schuhgröße ist erforderlich wenn Leihmaterial ausgewählt wurde')
+                ->atPath('shoeSize')
+                ->addViolation();
+        }
+    }
 }