feat: fold purchase and promo voucher fields into one code field

src/Form/Service/ParticipantFieldOptionsProvider.php

@@ -704,28 +704,22 @@ class ParticipantFieldOptionsProvider extends AbstractFieldOptionsProvider
             ];
         };
 
-        // Purchase voucher field provider - redemption code for vouchers that apply to complete booking
-        // Collected from all participants and aggregated into single <gutscheine> collection in booking payload
-        $this->fieldOptionProviders['purchaseVoucherCode'] = fn (BookingDto $bookingDto, int $participantIndex, array $options = []) => [
-            'label' => 'Gutschein-Code',
+        // Single voucher field - purchase (Kauf/Kulanz) or promo code, told apart by VoucherCodeClassifier.
+        // Applied by ParticipantVoucherFieldHandler, which moves accepted codes to purchaseVoucherCode/promoVoucherCode
+        $this->fieldOptionProviders['voucherCode'] = fn (BookingDto $bookingDto, int $participantIndex, array $options = []) => [
+            'label' => 'Gutschein- oder Aktionscode',
             'required' => false,
             'attr' => [
-                'placeholder' => 'z.B. 1F7V6PADRZ',
+                'placeholder' => 'z.B. 1F7V6PADRZ oder R-SOMMER',
                 'maxlength' => 50,
+                'autocomplete' => 'off',
             ],
             'sanitize_html' => true,
         ];
 
-        // Promo voucher field provider - promo code applied per participant in booking payload
-        // Included in participant XML node as <aktionscode>
-        $this->fieldOptionProviders['promoVoucherCode'] = fn (BookingDto $bookingDto, int $participantIndex, array $options = []) => [
-            'label' => 'Rabatt-Code',
+        // Applied voucher code to remove, set by the remove button of its chip
+        $this->fieldOptionProviders['removeVoucherCode'] = fn (BookingDto $bookingDto, int $participantIndex, array $options = []) => [
             'required' => false,
-            'attr' => [
-                'placeholder' => 'z.B. LW0705',
-                'maxlength' => 50,
-            ],
-            'sanitize_html' => true,
         ];
 
         // Future field providers would be added here, for example: