feat: finalize voucher handling and discount display in summary and overview

src/Form/Service/ParticipantPromoVoucherFieldHandler.php

@@ -6,19 +6,27 @@ namespace App\Form\Service;
 
 use App\Form\Model\BookingDto;
 use App\Form\Service\Abstract\AbstractParticipantFieldHandler;
+use App\Service\BookingPriceCalculatorService;
+use App\Service\VoucherValidationService;
 
 /**
  * Handles promotional voucher code field processing.
  *
- * Validation is performed by the PromoVoucher constraint on ParticipantEditDto.
- * This handler maintains dependency order to ensure validation occurs after
- * all price-affecting fields have been processed.
+ * Validates promo codes via API and stores the validated voucher data
+ * for early discount display. Validation is also performed by the
+ * PromoVoucher constraint on ParticipantEditDto for form error feedback.
  *
  * Dependencies: ALL price-affecting fields (insurance, services, ski pass, rentals, etc.)
  * since promo validation requires accurate participant pricing.
  */
 class ParticipantPromoVoucherFieldHandler extends AbstractParticipantFieldHandler
 {
+    public function __construct(
+        private readonly VoucherValidationService $voucherValidationService,
+        private readonly BookingPriceCalculatorService $priceCalculatorService,
+    ) {
+    }
+
     public function getFieldName(): string
     {
         return 'promoVoucherCode';
@@ -44,12 +52,42 @@ class ParticipantPromoVoucherFieldHandler extends AbstractParticipantFieldHandle
 
     public function shouldProcess(array $submittedData, string $mode, int $participantIndex): bool
     {
-        // No processing needed - validation handled by PromoVoucher constraint
-        return false;
+        $promoCode = $this->getFieldValue($submittedData, $this->getFieldName());
+
+        return null !== $promoCode && '' !== trim($promoCode);
     }
 
     public function processField(array $submittedData, BookingDto $bookingDto, int $participantIndex): void
     {
-        // No processing needed - validation handled by PromoVoucher constraint
+        $participant = $this->getParticipant($bookingDto, $participantIndex);
+
+        if (null === $participant) {
+            return;
+        }
+
+        $promoCode = $this->getFieldValue($submittedData, $this->getFieldName());
+
+        // Clear validated voucher if code is empty
+        if (null === $promoCode || '' === trim($promoCode)) {
+            $participant->validatedPromoVoucher = null;
+
+            return;
+        }
+
+        // Calculate participant price for validation
+        $participantPrice = $this->priceCalculatorService->calculateIndividualParticipantPrice(
+            $bookingDto,
+            $participantIndex
+        );
+
+        // Validate promo voucher and store result
+        $result = $this->voucherValidationService->validatePromoVoucher(
+            trim($promoCode),
+            $bookingDto->travel->id,
+            $participantPrice
+        );
+
+        // Store validated voucher (null if invalid)
+        $participant->validatedPromoVoucher = $result->isValid ? $result->voucher : null;
     }
 }

src/Form/Service/ParticipantPurchaseVoucherFieldHandler.php

@@ -52,21 +52,17 @@ class ParticipantPurchaseVoucherFieldHandler extends AbstractParticipantFieldHan
 
         $voucherCode = $this->getFieldValue($submittedData, $this->getFieldName());
 
+        // Clear validated voucher if code is empty
         if (null === $voucherCode || '' === trim($voucherCode)) {
+            $participant->validatedPurchaseVoucher = null;
+
             return;
         }
 
-        // Validate voucher to check if it's goodwill type
+        // Validate voucher and store result
         $result = $this->voucherValidationService->validatePurchaseVoucher($voucherCode);
 
-        // Only process valid vouchers
-        if (false === $result->isValid || null === $result->voucher) {
-            return;
-        }
-
-        // Check if this is a goodwill voucher
-        if (true === $result->voucher->isGoodwill()) {
-            $participant->hasGoodwillVoucher = true;
-        }
+        // Store validated voucher (null if invalid)
+        $participant->validatedPurchaseVoucher = $result->isValid ? $result->voucher : null;
     }
 }