feat: Implement stripe webhooks

packages/backend/src/helpers/billing/index.ee.ts

@@ -3,6 +3,7 @@ import User from '../../models/user';
 import PaymentPlan from '../../models/payment-plan.ee';
 import UsageData from '../../models/usage-data.ee';
 import appConfig from '../../config/app';
+import handleWebhooks from './webhooks.ee';
 
 const plans = [
   {
@@ -91,6 +92,9 @@ const createPaymentPortalUrl = async (user: User) => {
 const billing = {
   createSubscription,
   createPaymentPortalUrl,
+  handleWebhooks,
+  stripe,
+  plans,
 };
 
 export default billing;

packages/backend/src/helpers/billing/webhooks.ee.ts

@@ -0,0 +1,42 @@
+import Stripe from 'stripe';
+import PaymentPlan from '../../models/payment-plan.ee';
+import Billing from './index.ee';
+
+const handleWebhooks = async (event: Stripe.Event) => {
+  const trackedWebhookTypes = [
+    'customer.subscription.created',
+    'customer.subscription.updated',
+    'customer.subscription.deleted',
+  ];
+
+  if (!trackedWebhookTypes.includes(event.type)) {
+    return;
+  }
+
+  await updatePaymentPlan(event);
+};
+
+const updatePaymentPlan = async (event: Stripe.Event) => {
+  const subscription = event.data.object as Stripe.Subscription;
+  const priceKey = subscription.items.data[0].plan.id;
+  const plan = Billing.plans.find((plan) => plan.price === priceKey);
+
+  const paymentPlan = await PaymentPlan.query().findOne({
+    stripe_customer_id: subscription.customer,
+  });
+
+  await paymentPlan.$query().patchAndFetch({
+    name: plan.name,
+    taskCount: plan.taskCount,
+    stripeSubscriptionId: subscription.id,
+  });
+
+  const user = await paymentPlan.$relatedQuery('user');
+  const usageData = await user.$relatedQuery('usageData');
+
+  await usageData.$query().patchAndFetch({
+    nextResetAt: new Date(subscription.current_period_end * 1000).toISOString(),
+  });
+};
+
+export default handleWebhooks;