Merge pull request #3445 from woocommerce/PCP-4791-vaulting-my-account-pay-pal-gateway-and-button-should-not-be-displayed-when-customer-already-has-vaulted-pay-pal-account

PayPal button should not be displayed when customer already has vaulted PayPal account (4791)

modules/ppcp-save-payment-methods/resources/js/add-payment-method.js

@@ -82,7 +82,8 @@ import {
 					renderFields( cardFields );
 				}
 
-                const placeOrderButton = document.querySelector( '#place_order' );
+				const placeOrderButton =
+					document.querySelector( '#place_order' );
 				placeOrderButton?.addEventListener( 'click', ( event ) => {
 					const cardPaymentToken = document.querySelector(
 						'input[name="wc-ppcp-credit-card-gateway-payment-token"]:checked'

modules/ppcp-save-payment-methods/services.php

@@ -13,6 +13,7 @@ use WooCommerce\PayPalCommerce\SavePaymentMethods\Endpoint\CreatePaymentToken;
 use WooCommerce\PayPalCommerce\SavePaymentMethods\Endpoint\CreateSetupToken;
 use WooCommerce\PayPalCommerce\SavePaymentMethods\Endpoint\CreatePaymentTokenForGuest;
 use WooCommerce\PayPalCommerce\SavePaymentMethods\Helper\SavePaymentMethodsApplies;
+use WooCommerce\PayPalCommerce\SavePaymentMethods\Service\PaymentMethodTokensChecker;
 use WooCommerce\PayPalCommerce\Vendor\Psr\Container\ContainerInterface;
 
 return array(
@@ -108,4 +109,7 @@ return array(
 			$container->get( 'api.endpoint.payment-method-tokens' )
 		);
 	},
+	'save-payment-methods.service.payment-method-tokens-checker' => static function ( ContainerInterface $container ): PaymentMethodTokensChecker {
+		return new PaymentMethodTokensChecker( $container->get( 'api.endpoint.payment-tokens' ) );
+	},
 );

modules/ppcp-save-payment-methods/src/SavePaymentMethodsModule.php

@@ -22,6 +22,7 @@ use WooCommerce\PayPalCommerce\Button\Helper\ContextTrait;
 use WooCommerce\PayPalCommerce\SavePaymentMethods\Endpoint\CreatePaymentToken;
 use WooCommerce\PayPalCommerce\SavePaymentMethods\Endpoint\CreatePaymentTokenForGuest;
 use WooCommerce\PayPalCommerce\SavePaymentMethods\Endpoint\CreateSetupToken;
+use WooCommerce\PayPalCommerce\SavePaymentMethods\Service\PaymentMethodTokensChecker;
 use WooCommerce\PayPalCommerce\Vaulting\WooCommercePaymentTokens;
 use WooCommerce\PayPalCommerce\Vendor\Inpsyde\Modularity\Module\ExecutableModule;
 use WooCommerce\PayPalCommerce\Vendor\Inpsyde\Modularity\Module\ExtendingModule;
@@ -339,13 +340,21 @@ class SavePaymentMethodsModule implements ServiceModule, ExtendingModule, Execut
 					}
 				);
 
+				// Do not display PayPal button if the user already has a PayPal payment token.
 				add_action(
 					'woocommerce_add_payment_method_form_bottom',
-					function () {
+					function () use ( $c ) {
 						if ( ! is_user_logged_in() || ! is_add_payment_method_page() ) {
 							return;
 						}
 
+						$payment_method_tokens_checked = $c->get( 'save-payment-methods.service.payment-method-tokens-checker' );
+						assert( $payment_method_tokens_checked instanceof PaymentMethodTokensChecker );
+						$customer_id = get_user_meta( get_current_user_id(), '_ppcp_target_customer_id', true );
+						if ( $payment_method_tokens_checked->has_paypal_payment_token( $customer_id ) ) {
+							return;
+						}
+
 						echo '<div id="ppc-button-' . esc_attr( PayPalGateway::ID ) . '-save-payment-method"></div>';
 					}
 				);

modules/ppcp-save-payment-methods/src/Service/PaymentMethodTokensChecker.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * Service for checking payment method tokens.
+ *
+ * @package WooCommerce\PayPalCommerce\SavePaymentMethods\Helper
+ */
+
+declare(strict_types=1);
+
+namespace WooCommerce\PayPalCommerce\SavePaymentMethods\Service;
+
+use WooCommerce\PayPalCommerce\ApiClient\Endpoint\PaymentTokensEndpoint;
+
+class PaymentMethodTokensChecker {
+
+	/**
+	 * Payment method tokens endpoint.
+	 *
+	 * @var PaymentTokensEndpoint
+	 */
+	private PaymentTokensEndpoint $payment_method_tokens_endpoint;
+
+	public function __construct( PaymentTokensEndpoint $payment_method_tokens_endpoint ) {
+		$this->payment_method_tokens_endpoint = $payment_method_tokens_endpoint;
+	}
+
+	/**
+	 * Checks if customer has a saved PayPal payment token.
+	 *
+	 * @param string $customer_id PayPal customer ID.
+	 * @return bool
+	 */
+	public function has_paypal_payment_token( string $customer_id ): bool {
+		if ( ! $customer_id ) {
+			return false;
+		}
+
+		$tokens = $this->payment_method_tokens_endpoint->payment_tokens_for_customer( $customer_id );
+		foreach ( $tokens as $token ) {
+			$payment_source = $token['payment_source']->name() ?? '';
+			if ( $payment_source === 'paypal' ) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+}