fix: update lowercaseEmail value on customer update

src/repositories/customer/index.test.ts

@@ -7,7 +7,7 @@ describe("Order repository", () => {
 	const storage = new InMemoryStorage();
 	const repository = new CustomerRepository(storage);
 
-	test("lowercaseEmail", async () => {
+	test("query by lowercaseEmail", async () => {
 		const customer = repository.create(
 			{ projectKey: "dummy" },
 			{ email: "my-customer-UPPERCASE@email.com" },
@@ -22,6 +22,30 @@ describe("Order repository", () => {
 		expect(result.results[0].id).toEqual(customer.id);
 	});
 
+	test("updating lowercaseEmail", async () => {
+		const customer = repository.create(
+			{ projectKey: "dummy" },
+			{ email: "my-customer-UPPERCASE-v1@email.com" },
+		);
+
+		repository.saveUpdate({ projectKey: "dummy" }, customer.version, {
+			...customer,
+			email: "my-customer-UPPERCASE-v2@email.com",
+			version: customer.version + 1,
+		});
+
+		const result = repository.query(
+			{ projectKey: "dummy" },
+			{ where: [`lowercaseEmail = "my-customer-uppercase-v2@email.com"`] },
+		);
+
+		expect(result.results).toHaveLength(1);
+		expect(result.results[0].id).toEqual(customer.id);
+		expect(result.results[0].email).toEqual(
+			"my-customer-UPPERCASE-v2@email.com",
+		);
+	});
+
 	test("adding stores to customer", async () => {
 		const store1: Store = {
 			id: "d0016081-e9af-48a7-8133-1f04f340a335",

src/repositories/customer/index.ts

@@ -20,7 +20,7 @@ import {
 	validatePasswordResetToken,
 } from "~src/lib/password";
 import type { AbstractStorage } from "~src/storage/abstract";
-import type { Writable } from "~src/types";
+import type { ResourceMap, ShallowWritable, Writable } from "~src/types";
 import {
 	AbstractResourceRepository,
 	type RepositoryContext,
@@ -162,6 +162,20 @@ export class CustomerRepository extends AbstractResourceRepository<"customer"> {
 		return this.saveNew(context, resource);
 	}
 
+	saveUpdate(
+		context: RepositoryContext,
+		version: number,
+		resource: ShallowWritable<ResourceMap["customer"]>,
+	): ShallowWritable<ResourceMap["customer"]> {
+		// Also update lowercaseEmail attribute
+		const updatedResource: Customer = {
+			...resource,
+			lowercaseEmail: resource.email.toLowerCase(),
+		} satisfies unknown as Customer;
+
+		return super.saveUpdate(context, version, updatedResource);
+	}
+
 	passwordResetToken(
 		context: RepositoryContext,
 		request: CustomerCreatePasswordResetToken,