1 files changed, 82 insertions, 0 deletions
diff --git a/plugins/jetpack/extensions/blocks/premium-content/_inc/subscription-service/include.php b/plugins/jetpack/extensions/blocks/premium-content/_inc/subscription-service/include.php
new file mode 100644
index 00000000..34bf3f20
--- /dev/null
+++ b/plugins/jetpack/extensions/blocks/premium-content/_inc/subscription-service/include.php
@@ -0,0 +1,82 @@
+<?php
+/**
+ * Subcription service includes to build out the service.
+ *
+ * @package Automattic\Jetpack\Extensions\Premium_Content
+ */
+
+namespace Automattic\Jetpack\Extensions\Premium_Content;
+
+require_once __DIR__ . '/class-jwt.php';
+require_once __DIR__ . '/class-subscription-service.php';
+require_once __DIR__ . '/class-token-subscription.php';
+require_once __DIR__ . '/class-token-subscription-service.php';
+require_once __DIR__ . '/class-wpcom-token-subscription-service.php';
+require_once __DIR__ . '/class-wpcom-offline-subscription-service.php';
+require_once __DIR__ . '/class-jetpack-token-subscription-service.php';
+require_once __DIR__ . '/class-unconfigured-subscription-service.php';
+
+use Automattic\Jetpack\Extensions\Premium_Content\Subscription_Service\Jetpack_Token_Subscription_Service;
+use Automattic\Jetpack\Extensions\Premium_Content\Subscription_Service\Unconfigured_Subscription_Service;
+use Automattic\Jetpack\Extensions\Premium_Content\Subscription_Service\WPCOM_Offline_Subscription_Service;
+use Automattic\Jetpack\Extensions\Premium_Content\Subscription_Service\WPCOM_Token_Subscription_Service;
+
+const PAYWALL_FILTER = 'earn_premium_content_subscription_service';
+
+/**
+ * Initializes the premium content subscription service.
+ */
+function paywall_initialize() {
+	$paywall = subscription_service();
+	if ( $paywall ) {
+		$paywall->initialize();
+	}
+}
+add_action( 'init', 'Automattic\Jetpack\Extensions\Premium_Content\paywall_initialize', 9 );
+
+/**
+ * Gets the service handling the premium content subscriptions.
+ *
+ * @return Subscription_Service Service that will handle the premium content subscriptions.
+ */
+function subscription_service() {
+	/**
+	 * Filter the Jetpack_Token_Subscription_Service class.
+	 *
+	 * @since 9.4.0
+	 *
+	 * @param null|Jetpack_Token_Subscription_Service $interface Registered Subscription_Service.
+	 */
+	$interface = apply_filters( PAYWALL_FILTER, null );
+	if ( ! $interface instanceof Jetpack_Token_Subscription_Service ) {
+		_doing_it_wrong( __FUNCTION__, 'No Subscription_Service registered for the ' . esc_html( PAYWALL_FILTER ) . ' filter', 'jetpack' );
+	}
+	return $interface;
+}
+
+/**
+ * Gets the default service handling the premium content.
+ *
+ * @param  Subscription_Service $service If set, this service will be used by default.
+ * @return Subscription_Service Service that will handle the premium content.
+ */
+function default_service( $service ) {
+	if ( null !== $service ) {
+		return $service;
+	}
+
+	if ( WPCOM_Offline_Subscription_Service::available() ) {
+		return new WPCOM_Offline_Subscription_Service();
+	}
+
+	if ( WPCOM_Token_Subscription_Service::available() ) {
+		return new WPCOM_Token_Subscription_Service();
+	}
+
+	if ( Jetpack_Token_Subscription_Service::available() ) {
+		return new Jetpack_Token_Subscription_Service();
+	}
+
+	return new Unconfigured_Subscription_Service();
+}
+add_filter( PAYWALL_FILTER, 'Automattic\Jetpack\Extensions\Premium_Content\default_service' );