Merge branch 'PCP-3649-fastlane-backend-logic-for-blocks' of github.com:woocommerce/woocommerce-paypal-payments into PCP-3380-prepare-fastlane-integration-on-block-checkout

modules/ppcp-axo-block/resources/js/hooks/usePaymentSetupEffect.js

@@ -0,0 +1,24 @@
+import { useEffect, useCallback } from '@wordpress/element';
+
+const usePaymentSetupEffect = ( onPaymentSetup, handlePaymentSetup ) => {
+	/**
+	 * `onPaymentSetup()` fires when we enter the "PROCESSING" state in the checkout flow.
+	 * It pre-processes the payment details and returns data for server-side processing.
+	 */
+	useEffect( () => {
+		const unsubscribe = onPaymentSetup( handlePaymentSetup );
+
+		return () => {
+			unsubscribe();
+		};
+	}, [ onPaymentSetup, handlePaymentSetup ] );
+
+	const handlePaymentLoad = useCallback( ( component ) => {
+		// We'll return this function instead of calling setPaymentComponent directly
+		return component;
+	}, [] );
+
+	return { handlePaymentLoad };
+};
+
+export default usePaymentSetupEffect;