refactor analytics module

apps/api/src/domain/analytics/AnalyticsProviders.ts

@@ -1,12 +1,10 @@
-import { Provider } from '@nestjs/common';
-import { AnalyticsService } from './AnalyticsService';
-import type { IPageViewRepository } from '@core/analytics/domain/repositories/IPageViewRepository';
-import type { IEngagementRepository } from '@core/analytics/domain/repositories/IEngagementRepository';
-import type { Logger, UseCaseOutputPort } from '@core/shared/application';
-import type { RecordPageViewOutput } from '@core/analytics/application/use-cases/RecordPageViewUseCase';
-import type { RecordEngagementOutput } from '@core/analytics/application/use-cases/RecordEngagementUseCase';
-import type { GetDashboardDataOutput } from '@core/analytics/application/use-cases/GetDashboardDataUseCase';
 import type { GetAnalyticsMetricsOutput } from '@core/analytics/application/use-cases/GetAnalyticsMetricsUseCase';
+import type { RecordEngagementOutput } from '@core/analytics/application/use-cases/RecordEngagementUseCase';
+import type { RecordPageViewOutput } from '@core/analytics/application/use-cases/RecordPageViewUseCase';
+import type { IEngagementRepository } from '@core/analytics/domain/repositories/IEngagementRepository';
+import type { IPageViewRepository } from '@core/analytics/domain/repositories/IPageViewRepository';
+import type { Logger, UseCaseOutputPort } from '@core/shared/application';
+import { Provider } from '@nestjs/common';
 
 const Logger_TOKEN = 'Logger_TOKEN';
 const IPAGE_VIEW_REPO_TOKEN = 'IPageViewRepository_TOKEN';
@@ -20,21 +18,16 @@ const GET_ANALYTICS_METRICS_OUTPUT_PORT_TOKEN = 'GetAnalyticsMetricsOutputPort_T
 import { InMemoryEngagementRepository } from '@adapters/analytics/persistence/inmemory/InMemoryEngagementRepository';
 import { InMemoryPageViewRepository } from '@adapters/analytics/persistence/inmemory/InMemoryPageViewRepository';
 import { ConsoleLogger } from '@adapters/logging/ConsoleLogger';
-import { RecordPageViewUseCase } from '@core/analytics/application/use-cases/RecordPageViewUseCase';
-import { RecordEngagementUseCase } from '@core/analytics/application/use-cases/RecordEngagementUseCase';
-import { GetDashboardDataUseCase } from '@core/analytics/application/use-cases/GetDashboardDataUseCase';
 import { GetAnalyticsMetricsUseCase } from '@core/analytics/application/use-cases/GetAnalyticsMetricsUseCase';
-import { RecordPageViewPresenter } from './presenters/RecordPageViewPresenter';
-import { RecordEngagementPresenter } from './presenters/RecordEngagementPresenter';
-import { GetDashboardDataPresenter } from './presenters/GetDashboardDataPresenter';
+import { GetDashboardDataOutput, GetDashboardDataUseCase } from '@core/analytics/application/use-cases/GetDashboardDataUseCase';
+import { RecordEngagementUseCase } from '@core/analytics/application/use-cases/RecordEngagementUseCase';
+import { RecordPageViewUseCase } from '@core/analytics/application/use-cases/RecordPageViewUseCase';
 import { GetAnalyticsMetricsPresenter } from './presenters/GetAnalyticsMetricsPresenter';
+import { GetDashboardDataPresenter } from './presenters/GetDashboardDataPresenter';
+import { RecordEngagementPresenter } from './presenters/RecordEngagementPresenter';
+import { RecordPageViewPresenter } from './presenters/RecordPageViewPresenter';
 
 export const AnalyticsProviders: Provider[] = [
-  AnalyticsService,
-  RecordPageViewPresenter,
-  RecordEngagementPresenter,
-  GetDashboardDataPresenter,
-  GetAnalyticsMetricsPresenter,
   {
     provide: Logger_TOKEN,
     useClass: ConsoleLogger,

apps/api/src/domain/analytics/AnalyticsService.ts

@@ -1,18 +1,18 @@
-import { Injectable, Inject } from '@nestjs/common';
-import type { RecordPageViewInputDTO } from './dtos/RecordPageViewInputDTO';
-import type { RecordPageViewOutputDTO } from './dtos/RecordPageViewOutputDTO';
+import { GetAnalyticsMetricsUseCase } from '@core/analytics/application/use-cases/GetAnalyticsMetricsUseCase';
+import { GetDashboardDataUseCase } from '@core/analytics/application/use-cases/GetDashboardDataUseCase';
+import { RecordEngagementUseCase } from '@core/analytics/application/use-cases/RecordEngagementUseCase';
+import { RecordPageViewUseCase } from '@core/analytics/application/use-cases/RecordPageViewUseCase';
+import { Inject, Injectable } from '@nestjs/common';
+import type { GetAnalyticsMetricsOutputDTO } from './dtos/GetAnalyticsMetricsOutputDTO';
+import type { GetDashboardDataOutputDTO } from './dtos/GetDashboardDataOutputDTO';
 import type { RecordEngagementInputDTO } from './dtos/RecordEngagementInputDTO';
 import type { RecordEngagementOutputDTO } from './dtos/RecordEngagementOutputDTO';
-import type { GetDashboardDataOutputDTO } from './dtos/GetDashboardDataOutputDTO';
-import type { GetAnalyticsMetricsOutputDTO } from './dtos/GetAnalyticsMetricsOutputDTO';
-import { RecordPageViewUseCase } from '@core/analytics/application/use-cases/RecordPageViewUseCase';
-import { RecordEngagementUseCase } from '@core/analytics/application/use-cases/RecordEngagementUseCase';
-import { GetDashboardDataUseCase } from '@core/analytics/application/use-cases/GetDashboardDataUseCase';
-import { GetAnalyticsMetricsUseCase } from '@core/analytics/application/use-cases/GetAnalyticsMetricsUseCase';
-import { RecordPageViewPresenter } from './presenters/RecordPageViewPresenter';
-import { RecordEngagementPresenter } from './presenters/RecordEngagementPresenter';
-import { GetDashboardDataPresenter } from './presenters/GetDashboardDataPresenter';
+import type { RecordPageViewInputDTO } from './dtos/RecordPageViewInputDTO';
+import type { RecordPageViewOutputDTO } from './dtos/RecordPageViewOutputDTO';
 import { GetAnalyticsMetricsPresenter } from './presenters/GetAnalyticsMetricsPresenter';
+import { GetDashboardDataPresenter } from './presenters/GetDashboardDataPresenter';
+import { RecordEngagementPresenter } from './presenters/RecordEngagementPresenter';
+import { RecordPageViewPresenter } from './presenters/RecordPageViewPresenter';
 
 type RecordPageViewInput = RecordPageViewInputDTO;
 type RecordEngagementInput = RecordEngagementInputDTO;
@@ -24,45 +24,53 @@ export class AnalyticsService {
     @Inject(RecordEngagementUseCase) private readonly recordEngagementUseCase: RecordEngagementUseCase,
     @Inject(GetDashboardDataUseCase) private readonly getDashboardDataUseCase: GetDashboardDataUseCase,
     @Inject(GetAnalyticsMetricsUseCase) private readonly getAnalyticsMetricsUseCase: GetAnalyticsMetricsUseCase,
-    private readonly recordPageViewPresenter: RecordPageViewPresenter,
-    private readonly recordEngagementPresenter: RecordEngagementPresenter,
-    private readonly getDashboardDataPresenter: GetDashboardDataPresenter,
-    private readonly getAnalyticsMetricsPresenter: GetAnalyticsMetricsPresenter,
   ) {}
 
   async recordPageView(input: RecordPageViewInput): Promise<RecordPageViewOutputDTO> {
+    const presenter = new RecordPageViewPresenter();
+
     const result = await this.recordPageViewUseCase.execute(input);
     if (result.isErr()) {
       const error = result.unwrapErr();
       throw new Error(error.details?.message ?? 'Failed to record page view');
     }
-    return this.recordPageViewPresenter.getResponseModel();
+
+    return presenter.responseModel;
   }
 
   async recordEngagement(input: RecordEngagementInput): Promise<RecordEngagementOutputDTO> {
+    const presenter = new RecordEngagementPresenter();
+
     const result = await this.recordEngagementUseCase.execute(input);
     if (result.isErr()) {
       const error = result.unwrapErr();
       throw new Error(error.details?.message ?? 'Failed to record engagement');
     }
-    return this.recordEngagementPresenter.getResponseModel();
+
+    return presenter.responseModel;
   }
 
   async getDashboardData(): Promise<GetDashboardDataOutputDTO> {
+    const presenter = new GetDashboardDataPresenter();
+
     const result = await this.getDashboardDataUseCase.execute({});
     if (result.isErr()) {
       const error = result.unwrapErr();
       throw new Error(error.details?.message ?? 'Failed to get dashboard data');
     }
-    return this.getDashboardDataPresenter.getResponseModel();
+
+    return presenter.responseModel;
   }
 
   async getAnalyticsMetrics(): Promise<GetAnalyticsMetricsOutputDTO> {
+    const presenter = new GetAnalyticsMetricsPresenter();
+
     const result = await this.getAnalyticsMetricsUseCase.execute({});
     if (result.isErr()) {
       const error = result.unwrapErr();
       throw new Error(error.details?.message ?? 'Failed to get analytics metrics');
     }
-    return this.getAnalyticsMetricsPresenter.getResponseModel();
+
+    return presenter.responseModel;
   }
 }

apps/api/src/domain/analytics/presenters/GetAnalyticsMetricsPresenter.test.ts

@@ -27,9 +27,19 @@ describe('GetAnalyticsMetricsPresenter', () => {
       averageSessionDuration: 300,
       bounceRate: 0.4,
     });
+    expect(presenter.responseModel).toEqual({
+      pageViews: 1000,
+      uniqueVisitors: 500,
+      averageSessionDuration: 300,
+      bounceRate: 0.4,
+    });
   });
 
   it('getResponseModel throws if not presented', () => {
     expect(() => presenter.getResponseModel()).toThrow('Presenter not presented');
   });
+
+  it('responseModel throws if not presented', () => {
+    expect(() => presenter.responseModel).toThrow('Presenter not presented');
+  });
 });

apps/api/src/domain/analytics/presenters/GetAnalyticsMetricsPresenter.ts

@@ -1,12 +1,12 @@
-import type { UseCaseOutputPort } from '@core/shared/application';
 import type { GetAnalyticsMetricsOutput } from '@core/analytics/application/use-cases/GetAnalyticsMetricsUseCase';
+import type { UseCaseOutputPort } from '@core/shared/application';
 import type { GetAnalyticsMetricsOutputDTO } from '../dtos/GetAnalyticsMetricsOutputDTO';
 
 export class GetAnalyticsMetricsPresenter implements UseCaseOutputPort<GetAnalyticsMetricsOutput> {
-  private responseModel: GetAnalyticsMetricsOutputDTO | null = null;
+  private model: GetAnalyticsMetricsOutputDTO | null = null;
 
   present(result: GetAnalyticsMetricsOutput): void {
-    this.responseModel = {
+    this.model = {
       pageViews: result.pageViews,
       uniqueVisitors: result.uniqueVisitors,
       averageSessionDuration: result.averageSessionDuration,
@@ -14,8 +14,13 @@ export class GetAnalyticsMetricsPresenter implements UseCaseOutputPort<GetAnalyt
     };
   }
 
+  get responseModel(): GetAnalyticsMetricsOutputDTO {
+    if (!this.model) throw new Error('Presenter not presented');
+    return this.model;
+  }
+
   getResponseModel(): GetAnalyticsMetricsOutputDTO {
-    if (!this.responseModel) throw new Error('Presenter not presented');
-    return this.responseModel;
+    if (!this.model) throw new Error('Presenter not presented');
+    return this.model;
   }
 }

apps/api/src/domain/analytics/presenters/GetDashboardDataPresenter.test.ts

@@ -25,9 +25,19 @@ describe('GetDashboardDataPresenter', () => {
       totalRaces: 20,
       totalLeagues: 5,
     });
+    expect(presenter.responseModel).toEqual({
+      totalUsers: 100,
+      activeUsers: 50,
+      totalRaces: 20,
+      totalLeagues: 5,
+    });
   });
 
   it('getResponseModel throws if not presented', () => {
     expect(() => presenter.getResponseModel()).toThrow('Presenter not presented');
   });
+
+  it('responseModel throws if not presented', () => {
+    expect(() => presenter.responseModel).toThrow('Presenter not presented');
+  });
 });

apps/api/src/domain/analytics/presenters/GetDashboardDataPresenter.ts

@@ -1,12 +1,12 @@
-import type { UseCaseOutputPort } from '@core/shared/application';
 import type { GetDashboardDataOutput } from '@core/analytics/application/use-cases/GetDashboardDataUseCase';
+import type { UseCaseOutputPort } from '@core/shared/application';
 import type { GetDashboardDataOutputDTO } from '../dtos/GetDashboardDataOutputDTO';
 
 export class GetDashboardDataPresenter implements UseCaseOutputPort<GetDashboardDataOutput> {
-  private responseModel: GetDashboardDataOutputDTO | null = null;
+  private model: GetDashboardDataOutputDTO | null = null;
 
   present(result: GetDashboardDataOutput): void {
-    this.responseModel = {
+    this.model = {
       totalUsers: result.totalUsers,
       activeUsers: result.activeUsers,
       totalRaces: result.totalRaces,
@@ -14,8 +14,13 @@ export class GetDashboardDataPresenter implements UseCaseOutputPort<GetDashboard
     };
   }
 
+  get responseModel(): GetDashboardDataOutputDTO {
+    if (!this.model) throw new Error('Presenter not presented');
+    return this.model;
+  }
+
   getResponseModel(): GetDashboardDataOutputDTO {
-    if (!this.responseModel) throw new Error('Presenter not presented');
-    return this.responseModel;
+    if (!this.model) throw new Error('Presenter not presented');
+    return this.model;
   }
 }

apps/api/src/domain/analytics/presenters/RecordEngagementPresenter.test.ts

@@ -21,9 +21,17 @@ describe('RecordEngagementPresenter', () => {
       eventId: 'event-123',
       engagementWeight: 10,
     });
+    expect(presenter.responseModel).toEqual({
+      eventId: 'event-123',
+      engagementWeight: 10,
+    });
   });
 
   it('getResponseModel throws if not presented', () => {
     expect(() => presenter.getResponseModel()).toThrow('Presenter not presented');
   });
+
+  it('responseModel throws if not presented', () => {
+    expect(() => presenter.responseModel).toThrow('Presenter not presented');
+  });
 });

apps/api/src/domain/analytics/presenters/RecordEngagementPresenter.ts

@@ -1,19 +1,24 @@
-import type { UseCaseOutputPort } from '@core/shared/application';
 import type { RecordEngagementOutput } from '@core/analytics/application/use-cases/RecordEngagementUseCase';
+import type { UseCaseOutputPort } from '@core/shared/application';
 import type { RecordEngagementOutputDTO } from '../dtos/RecordEngagementOutputDTO';
 
 export class RecordEngagementPresenter implements UseCaseOutputPort<RecordEngagementOutput> {
-  private responseModel: RecordEngagementOutputDTO | null = null;
+  private model: RecordEngagementOutputDTO | null = null;
 
   present(result: RecordEngagementOutput): void {
-    this.responseModel = {
+    this.model = {
       eventId: result.eventId,
       engagementWeight: result.engagementWeight,
     };
   }
 
+  get responseModel(): RecordEngagementOutputDTO {
+    if (!this.model) throw new Error('Presenter not presented');
+    return this.model;
+  }
+
   getResponseModel(): RecordEngagementOutputDTO {
-    if (!this.responseModel) throw new Error('Presenter not presented');
-    return this.responseModel;
+    if (!this.model) throw new Error('Presenter not presented');
+    return this.model;
   }
 }

apps/api/src/domain/analytics/presenters/RecordPageViewPresenter.test.ts

@@ -19,9 +19,16 @@ describe('RecordPageViewPresenter', () => {
     expect(presenter.getResponseModel()).toEqual({
       pageViewId: 'pv-123',
     });
+    expect(presenter.responseModel).toEqual({
+      pageViewId: 'pv-123',
+    });
   });
 
   it('getResponseModel throws if not presented', () => {
     expect(() => presenter.getResponseModel()).toThrow('Presenter not presented');
   });
+
+  it('responseModel throws if not presented', () => {
+    expect(() => presenter.responseModel).toThrow('Presenter not presented');
+  });
 });

apps/api/src/domain/analytics/presenters/RecordPageViewPresenter.ts

@@ -1,18 +1,23 @@
-import type { UseCaseOutputPort } from '@core/shared/application';
 import type { RecordPageViewOutput } from '@core/analytics/application/use-cases/RecordPageViewUseCase';
+import type { UseCaseOutputPort } from '@core/shared/application';
 import type { RecordPageViewOutputDTO } from '../dtos/RecordPageViewOutputDTO';
 
 export class RecordPageViewPresenter implements UseCaseOutputPort<RecordPageViewOutput> {
-  private responseModel: RecordPageViewOutputDTO | null = null;
+  private model: RecordPageViewOutputDTO | null = null;
 
   present(result: RecordPageViewOutput): void {
-    this.responseModel = {
+    this.model = {
       pageViewId: result.pageViewId,
     };
   }
 
+  get responseModel(): RecordPageViewOutputDTO {
+    if (!this.model) throw new Error('Presenter not presented');
+    return this.model;
+  }
+
   getResponseModel(): RecordPageViewOutputDTO {
-    if (!this.responseModel) throw new Error('Presenter not presented');
-    return this.responseModel;
+    if (!this.model) throw new Error('Presenter not presented');
+    return this.model;
   }
 }