Add WooCommerce Subscriptions integration

[PREMIUM-256]

mailpoet/assets/js/src/automation/editor/integrations.tsx

@@ -2,10 +2,12 @@ import { initialize as initializeCoreIntegration } from '../integrations/core';
 import { initialize as initializeMailPoetIntegration } from '../integrations/mailpoet';
 import { initialize as initializeWordPressIntegration } from '../integrations/wordpress';
 import { initialize as initializeWooCommerceIntegration } from '../integrations/woocommerce';
+import { initialize as initializeWooCommerceSubscriptionsIntegration } from '../integrations/woocommerce-subscriptions';
 
 export function initializeIntegrations() {
   initializeCoreIntegration();
   initializeMailPoetIntegration();
   initializeWordPressIntegration();
   initializeWooCommerceIntegration();
+  initializeWooCommerceSubscriptionsIntegration();
 }

mailpoet/assets/js/src/automation/integrations/woocommerce-subscriptions/index.tsx

@@ -0,0 +1,8 @@
+import { MailPoet } from '../../../mailpoet';
+
+export const initialize = (): void => {
+  if (!MailPoet.isWoocommerceSubscriptionsActive) {
+    return;
+  }
+  // Insert new steps here
+};