Extract renewal handler logic to new class

modules/ppcp-paypal-subscriptions/services.php

@@ -40,4 +40,7 @@ return array(
 			dirname( realpath( __FILE__ ), 3 ) . '/woocommerce-paypal-payments.php'
 		);
 	},
+	'paypal-subscriptions.renewal-handler'          => static function ( ContainerInterface $container ): RenewalHandler {
+		return new RenewalHandler( $container->get( 'woocommerce.logger.woocommerce' ) );
+	},
 );

modules/ppcp-paypal-subscriptions/src/RenewalHandler.php

@@ -0,0 +1,70 @@
+<?php
+/**
+ * Subscriptions renewal handler.
+ *
+ * @package WooCommerce\PayPalCommerce\WcSubscriptions
+ */
+
+declare(strict_types=1);
+
+namespace WooCommerce\PayPalCommerce\PayPalSubscriptions;
+
+use Psr\Log\LoggerInterface;
+use WC_Data_Exception;
+use WC_Order;
+use WC_Subscription;
+use WooCommerce\PayPalCommerce\WcGateway\Processor\TransactionIdHandlingTrait;
+
+/**
+ * Class RenewalHandler
+ */
+class RenewalHandler {
+
+	use TransactionIdHandlingTrait;
+
+	/**
+	 * The logger.
+	 *
+	 * @var LoggerInterface
+	 */
+	private $logger;
+
+	/**
+	 * RenewalHandler constructor.
+	 *
+	 * @param LoggerInterface $logger The logger.
+	 */
+	public function __construct( LoggerInterface $logger ) {
+		$this->logger = $logger;
+	}
+
+	/**
+	 * Process subscription renewal.
+	 *
+	 * @param WC_Subscription[] $subscriptions WC Subscriptions.
+	 * @param string            $transaction_id PayPal transaction ID.
+	 * @return void
+	 * @throws WC_Data_Exception If something goes wrong while setting payment method.
+	 */
+	public function process( array $subscriptions, string $transaction_id ): void {
+		foreach ( $subscriptions as $subscription ) {
+			$is_renewal = $subscription->get_meta( '_ppcp_is_subscription_renewal' ) ?? '';
+			if ( $is_renewal ) {
+				$renewal_order = wcs_create_renewal_order( $subscription );
+				if ( is_a( $renewal_order, WC_Order::class ) ) {
+					$renewal_order->set_payment_method( $subscription->get_payment_method() );
+					$renewal_order->payment_complete();
+					$this->update_transaction_id( $transaction_id, $renewal_order, $this->logger );
+					break;
+				}
+			}
+
+			$parent_order = wc_get_order( $subscription->get_parent() );
+			if ( is_a( $parent_order, WC_Order::class ) ) {
+				$subscription->update_meta_data( '_ppcp_is_subscription_renewal', 'true' );
+				$subscription->save_meta_data();
+				$this->update_transaction_id( $transaction_id, $parent_order, $this->logger );
+			}
+		}
+	}
+}