feat: composition root for user subscriptions (#8649)

Co-Authored-By: Tymoteusz Czech <2625371+Tymek@users.noreply.github.com>

src/lib/db/index.ts

@@ -189,7 +189,7 @@ export const createStores = (
             eventBus,
             config.flagResolver,
         ),
-        userUnsubscribeStore: new UserUnsubscribeStore(db, getLogger),
+        userUnsubscribeStore: new UserUnsubscribeStore(db),
         userSubscriptionsReadModel: new UserSubscriptionsReadModel(
             db,
             eventBus,

src/lib/features/user-subscriptions/createUserSubscriptionsService.ts

@@ -0,0 +1,36 @@
+import type { Db, IUnleashConfig } from '../../server-impl';
+import UserSubscriptionService from './user-subscriptions-service';
+import { UserUnsubscribeStore } from './user-unsubscribe-store';
+import {
+    createEventsService,
+    createFakeEventsService,
+} from '../events/createEventsService';
+import { FakeUserUnsubscribeStore } from './fake-user-unsubscribe-store';
+
+export const createUserSubscriptionsService =
+    (config: IUnleashConfig) =>
+    (db: Db): UserSubscriptionService => {
+        const userUnsubscribeStore = new UserUnsubscribeStore(db);
+        const eventService = createEventsService(db, config);
+
+        const userSubscriptionsService = new UserSubscriptionService(
+            { userUnsubscribeStore },
+            config,
+            eventService,
+        );
+
+        return userSubscriptionsService;
+    };
+
+export const createFakeUserSubscriptionsService = (config: IUnleashConfig) => {
+    const userUnsubscribeStore = new FakeUserUnsubscribeStore();
+    const eventService = createFakeEventsService(config);
+
+    const userSubscriptionsService = new UserSubscriptionService(
+        { userUnsubscribeStore },
+        config,
+        eventService,
+    );
+
+    return userSubscriptionsService;
+};

src/lib/features/user-subscriptions/user-subscriptions-read-model.ts

@@ -45,10 +45,14 @@ export class UserSubscriptionsReadModel implements IUserSubscriptionsReadModel {
     }
 
     async getUserSubscriptions(userId: number) {
-        const unsubscriptions = await this.db(UNSUBSCRIPTION_TABLE)
+        const unsubscriptionsList = await this.db(UNSUBSCRIPTION_TABLE)
             .select('subscription')
             .where('user_id', userId);
 
+        const unsubscriptions: string[] = unsubscriptionsList.map(
+            (item) => item.subscription,
+        );
+
         return SUBSCRIPTION_TYPES.filter(
             (subscription) => !unsubscriptions.includes(subscription),
         );

src/lib/features/user-subscriptions/user-subscriptions-service.e2e.test.ts

@@ -0,0 +1,67 @@
+import {
+    type IUnleashConfig,
+    type IUnleashStores,
+    type IUser,
+    TEST_AUDIT_USER,
+} from '../../types';
+import type UserSubscriptionService from './user-subscriptions-service';
+import dbInit, { type ITestDb } from '../../../test/e2e/helpers/database-init';
+import { createTestConfig } from '../../../test/config/test-config';
+import getLogger from '../../../test/fixtures/no-logger';
+import { createUserSubscriptionsService } from './createUserSubscriptionsService';
+import type { IUserSubscriptionsReadModel } from './user-subscriptions-read-model-type';
+
+let stores: IUnleashStores;
+let db: ITestDb;
+let userSubscriptionService: UserSubscriptionService;
+let userSubscriptionsReadModel: IUserSubscriptionsReadModel;
+let config: IUnleashConfig;
+let user: IUser;
+
+beforeAll(async () => {
+    db = await dbInit('user_subscriptions', getLogger);
+    stores = db.stores;
+    config = createTestConfig({});
+
+    userSubscriptionService = createUserSubscriptionsService(config)(
+        db.rawDatabase,
+    );
+    userSubscriptionsReadModel = db.stores.userSubscriptionsReadModel;
+
+    user = await stores.userStore.insert({
+        email: 'test@getunleash.io',
+        name: 'Sample Name',
+    });
+});
+
+afterAll(async () => {
+    await db.destroy();
+});
+
+test('Subscribe and unsubscribe', async () => {
+    const subscribers = await userSubscriptionsReadModel.getSubscribedUsers(
+        'productivity-report',
+    );
+    expect(subscribers).toMatchObject([
+        { email: 'test@getunleash.io', name: 'Sample Name' },
+    ]);
+
+    const userSubscriptions =
+        await userSubscriptionsReadModel.getUserSubscriptions(user.id);
+    expect(userSubscriptions).toMatchObject(['productivity-report']);
+
+    await userSubscriptionService.unsubscribe(
+        user.id,
+        'productivity-report',
+        TEST_AUDIT_USER,
+    );
+
+    const noSubscribers = await userSubscriptionsReadModel.getSubscribedUsers(
+        'productivity-report',
+    );
+    expect(noSubscribers).toMatchObject([]);
+
+    const noUserSubscriptions =
+        await userSubscriptionsReadModel.getUserSubscriptions(user.id);
+    expect(noUserSubscriptions).toMatchObject([]);
+});

src/lib/features/user-subscriptions/user-unsubscribe-store.ts

@@ -1,9 +1,5 @@
-import type { Logger, LogProvider } from '../../logger';
 import type { Db } from '../../db/db';
-import type {
-    UnsubscribeEntry,
-    IUserUnsubscribeStore,
-} from './user-unsubscribe-store-type';
+import type { IUserUnsubscribeStore } from './user-unsubscribe-store-type';
 
 const COLUMNS = ['user_id', 'subscription', 'created_at'];
 export const TABLE = 'user_unsubscription';
@@ -14,20 +10,11 @@ interface IUserUnsubscribeTable {
     created_at?: Date;
 }
 
-const rowToField = (row: IUserUnsubscribeTable): UnsubscribeEntry => ({
-    userId: row.user_id,
-    subscription: row.subscription,
-    createdAt: row.created_at,
-});
-
 export class UserUnsubscribeStore implements IUserUnsubscribeStore {
     private db: Db;
 
-    private logger: Logger;
-
-    constructor(db: Db, getLogger: LogProvider) {
+    constructor(db: Db) {
         this.db = db;
-        this.logger = getLogger('user-unsubscribe-store.ts');
     }
 
     async insert({ userId, subscription }) {