fix(api): sync stripe customer email on change (#3243)

fluxer_api/src/api/worker/WorkerLaneConfig.ts

@@ -49,6 +49,7 @@ const LANE_CONFIG = {
 			'harvestUserData',
 			'batchGuildAuditLogMessageDeletes',
 			'reconcileUserPayments',
+			'syncStripeCustomerEmail',
 			'processAppStoreNotification',
 			'processGooglePlayNotification',
 			'refreshStorePurchase',

fluxer_api/src/api/worker/WorkerTaskRegistry.ts

@@ -49,6 +49,7 @@ import syncCrosspostCopies from '@app/api/worker/tasks/SyncCrosspostCopies';
 import syncCrosspostedMessage from '@app/api/worker/tasks/SyncCrosspostedMessage';
 import syncDiscoveryIndex from '@app/api/worker/tasks/SyncDiscoveryIndex';
 import syncFileShaBlocklists from '@app/api/worker/tasks/SyncFileShaBlocklists';
+import syncStripeCustomerEmail from '@app/api/worker/tasks/SyncStripeCustomerEmail';
 import syncUrlBlocklists from '@app/api/worker/tasks/SyncUrlBlocklists';
 import userProcessPendingDeletion from '@app/api/worker/tasks/UserProcessPendingDeletion';
 import userProcessPendingDeletions from '@app/api/worker/tasks/UserProcessPendingDeletions';
@@ -100,6 +101,7 @@ export const workerTasks: Record<WorkerTaskName, WorkerTaskHandler> = {
 	refreshSearchIndex,
 	removeChannelFollowers,
 	sendSystemDm,
+	syncStripeCustomerEmail,
 	syncFileShaBlocklists,
 	syncUrlBlocklists,
 	syncDiscoveryIndex,

fluxer_api/src/api/worker/tasks/ReconcileUserPayments.ts

@@ -6,6 +6,7 @@ import {mapGiftDurationMonthsToFields} from '@app/api/models/GiftCode';
 import type {Payment} from '@app/api/models/Payment';
 import type {User} from '@app/api/models/User';
 import {getProductRegistry} from '@app/api/stripe/ProductRegistry';
+import {syncStripeCustomerEmail} from '@app/api/stripe/StripeCustomer';
 import {extractId} from '@app/api/stripe/StripeUtils';
 import type {PaymentRepository} from '@app/api/user/repositories/PaymentRepository';
 import {mapUserToPrivateResponse} from '@app/api/user/UserMappers';
@@ -332,6 +333,11 @@ const reconcileUserPayments: WorkerTaskHandler = async (payload, helpers) => {
 	if (!user.stripeCustomerId) {
 		return;
 	}
+	try {
+		await syncStripeCustomerEmail(stripe, user);
+	} catch (error) {
+		Logger.warn({userId: userIdStr, error}, 'Failed to sync Stripe customer email during payment reconciliation');
+	}
 	const payments = await paymentRepository.findPaymentsByUserId(userId);
 	let reconciledCount = 0;
 	for (const payment of payments) {

fluxer_api/src/api/worker/tasks/SyncStripeCustomerEmail.ts

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+import {createUserID} from '@app/api/BrandedTypes';
+import {isStripeResourceMissingError, syncStripeCustomerEmail} from '@app/api/stripe/StripeCustomer';
+import {getWorkerDependencies} from '@app/api/worker/WorkerContext';
+import type {WorkerTaskHandler} from '@pkgs/worker/src/contracts/WorkerTask';
+
+const syncStripeCustomerEmailTask: WorkerTaskHandler = async (payload, helpers) => {
+	const {userRepository, stripe} = getWorkerDependencies();
+	if (!stripe) {
+		helpers.logger.debug('Stripe is disabled, skipping customer email sync');
+		return;
+	}
+	const userIdStr = payload.userId as string;
+	if (!userIdStr) {
+		helpers.logger.warn({payload}, 'Stripe customer email sync task missing userId');
+		return;
+	}
+	const user = await userRepository.findUnique(createUserID(BigInt(userIdStr)));
+	if (!user) {
+		return;
+	}
+	try {
+		await syncStripeCustomerEmail(stripe, user);
+	} catch (error) {
+		if (isStripeResourceMissingError(error)) {
+			helpers.logger.warn(
+				{userId: userIdStr, customerId: user.stripeCustomerId},
+				'Stripe customer no longer exists, skipping email sync',
+			);
+			return;
+		}
+		throw error;
+	}
+};
+
+export default syncStripeCustomerEmailTask;