Fix checkout error with Afterpay (#7214)

This change fixes an error in the checkout due to missing shipping information in the request to create and confirm a payment intent.

changelog/hotfix-7187-checkout-error-with-afterpay

@@ -0,0 +1,4 @@
+Significance: patch
+Type: fix
+
+Fix an error in the checkout when Afterpay is selected as payment method.

includes/class-wc-payment-gateway-wcpay.php

@@ -1128,6 +1128,9 @@ public function process_payment_for_order( $cart, $payment_information, $schedul
 				$request->set_payment_methods( $payment_methods );
 				$request->set_cvc_confirmation( $payment_information->get_cvc_confirmation() );
 
+				// Add specific payment method parameters to the request.
+				$this->modify_create_intent_parameters_when_processing_payment( $request, $payment_information, $order );
+
 				// The below if-statement ensures the support for UPE payment methods.
 				if ( $this->upe_needs_redirection( $payment_methods ) ) {
 					$request->set_return_url(
@@ -3599,4 +3602,19 @@ private function is_platform_payment_method( bool $is_using_saved_payment_method
 	private function upe_needs_redirection( $payment_methods ) {
 		return 1 === count( $payment_methods ) && 'card' !== $payment_methods[0];
 	}
+
+	/**
+	 * Modifies the create intent parameters when processing a payment.
+	 *
+	 * Currently used by child UPE_Split_Payment_Gateway to add required shipping information for Afterpay.
+	 *
+	 * @param Create_And_Confirm_Intention $request               The request object for creating and confirming intention.
+	 * @param Payment_Information          $payment_information   The payment information object.
+	 * @param mixed                        $order                 The order object or data.
+	 *
+	 * @return void
+	 */
+	protected function modify_create_intent_parameters_when_processing_payment( Create_And_Confirm_Intention $request, Payment_Information $payment_information, $order ) {
+		// Do nothing.
+	}
 }

includes/payment-methods/class-upe-payment-gateway.php

@@ -45,7 +45,8 @@
 use WCPay\Duplicate_Payment_Prevention_Service;
 use WP_User;
 use WC_Payments_Localization_Service;
-
+use WCPay\Payment_Information;
+use WCPay\Core\Server\Request\Create_And_Confirm_Intention;
 
 /**
  * UPE Payment method extended from WCPay generic Gateway.

includes/payment-methods/class-upe-split-payment-gateway.php

@@ -28,7 +28,8 @@
 use WCPay\Duplicate_Payment_Prevention_Service;
 use WP_User;
 use WC_Payments_Localization_Service;
-
+use WCPay\Payment_Information;
+use WCPay\Core\Server\Request\Create_And_Confirm_Intention;
 
 
 /**
@@ -529,4 +530,22 @@ public function get_payment_method() {
 	public function get_stripe_id() {
 		return $this->stripe_id;
 	}
+
+
+	/**
+	 * Modifies the create intent parameters when processing a payment.
+	 *
+	 * If the selected Stripe payment type is AFTERPAY, it updates the shipping data in the request.
+	 *
+	 * @param Create_And_Confirm_Intention $request               The request object for creating and confirming intention.
+	 * @param Payment_Information          $payment_information   The payment information object.
+	 * @param mixed                        $order                 The order object or data.
+	 *
+	 * @return void
+	 */
+	protected function modify_create_intent_parameters_when_processing_payment( Create_And_Confirm_Intention $request, Payment_Information $payment_information, $order ) {
+		if ( Payment_Method::AFTERPAY === $this->get_selected_stripe_payment_type_id() ) {
+			$request->set_shipping( $this->get_shipping_data_from_order( $order ) );
+		}
+	}
 }