Send redirect subtype for Riverty installments

ISSUE: CR-SET-45

Author: dokmanovicsofija

src/Handlers/RivertyPaymentTrait.php

@@ -32,9 +32,10 @@
 trait RivertyPaymentTrait
 {
     /**
-     * Adds the Riverty profile tracking session id as device fingerprint. Profile tracking needs
-     * both the shop id and the Experian subdomain, and the id only exists once the storefront has
-     * rendered the tracking tag, so headless channels and gift card partials send nothing.
+     * Forces the redirect flow for Riverty installments and adds the Riverty profile tracking
+     * session id as device fingerprint. Profile tracking needs both the shop id and the Experian
+     * subdomain, and the id only exists once the storefront has rendered the tracking tag, so
+     * headless channels and gift card partials send nothing.
      *
      * @param SalesChannelContext $salesChannelContext
      * @param AsyncPaymentTransactionStruct $transaction
@@ -64,11 +65,25 @@ protected function getAdyenPaymentRequest(
 
         $paymentMethodType = $stateData['paymentMethod']['type'] ?? static::getPaymentMethodCode();
 
-        if ($paymentMethodType !== static::getPaymentMethodCode()
-            || !$this->rivertyFingerprintParamsProvider->isProfileTrackingEnabled(
-                $salesChannelContext->getSalesChannelId()
-            )
-        ) {
+        // Partial gift card payments keep their own payment method type, nothing Riverty specific applies.
+        if ($paymentMethodType !== static::getPaymentMethodCode()) {
+            return $paymentRequest;
+        }
+
+        // Installments is the only Riverty txvariant Adyen rejects without an explicit redirect
+        // flow, and the only one without an Adyen Web component to set the subtype itself - the
+        // plain redirect component it falls back to sends none.
+        if (static::class === RivertyInstallmentsPaymentMethodHandler::class) {
+            $rivertyPaymentMethod = $paymentRequest->getPaymentMethod();
+
+            if (!is_null($rivertyPaymentMethod)) {
+                $rivertyPaymentMethod->setSubtype('redirect');
+            }
+        }
+
+        if (!$this->rivertyFingerprintParamsProvider->isProfileTrackingEnabled(
+            $salesChannelContext->getSalesChannelId()
+        )) {
             return $paymentRequest;
         }