/**
 * Integration Test: Dashboard Data Flow
 * 
 * Tests the complete data flow for dashboard functionality:
 * 1. Repository queries return correct data
 * 2. Use case processes and orchestrates data correctly
 * 3. Presenter transforms data to DTOs
 * 4. API returns correct response structure
 * 
 * Focus: Data transformation and flow, NOT UI rendering
 */

import { describe, it, expect, beforeAll, afterAll, beforeEach } from 'vitest';
import { InMemoryDriverRepository } from '../../../adapters/drivers/persistence/inmemory/InMemoryDriverRepository';
import { InMemoryRaceRepository } from '../../../adapters/races/persistence/inmemory/InMemoryRaceRepository';
import { InMemoryLeagueRepository } from '../../../adapters/leagues/persistence/inmemory/InMemoryLeagueRepository';
import { InMemoryActivityRepository } from '../../../adapters/activity/persistence/inmemory/InMemoryActivityRepository';
import { InMemoryEventPublisher } from '../../../adapters/events/InMemoryEventPublisher';
import { GetDashboardUseCase } from '../../../core/dashboard/use-cases/GetDashboardUseCase';
import { DashboardPresenter } from '../../../core/dashboard/presenters/DashboardPresenter';
import { DashboardDTO } from '../../../core/dashboard/dto/DashboardDTO';

describe('Dashboard Data Flow Integration', () => {
  let driverRepository: InMemoryDriverRepository;
  let raceRepository: InMemoryRaceRepository;
  let leagueRepository: InMemoryLeagueRepository;
  let activityRepository: InMemoryActivityRepository;
  let eventPublisher: InMemoryEventPublisher;
  let getDashboardUseCase: GetDashboardUseCase;
  let dashboardPresenter: DashboardPresenter;

  beforeAll(() => {
    // TODO: Initialize In-Memory repositories, event publisher, use case, and presenter
    // driverRepository = new InMemoryDriverRepository();
    // raceRepository = new InMemoryRaceRepository();
    // leagueRepository = new InMemoryLeagueRepository();
    // activityRepository = new InMemoryActivityRepository();
    // eventPublisher = new InMemoryEventPublisher();
    // getDashboardUseCase = new GetDashboardUseCase({
    //   driverRepository,
    //   raceRepository,
    //   leagueRepository,
    //   activityRepository,
    //   eventPublisher,
    // });
    // dashboardPresenter = new DashboardPresenter();
  });

  beforeEach(() => {
    // TODO: Clear all In-Memory repositories before each test
    // driverRepository.clear();
    // raceRepository.clear();
    // leagueRepository.clear();
    // activityRepository.clear();
    // eventPublisher.clear();
  });

  describe('Repository to Use Case Data Flow', () => {
    it('should correctly flow driver data from repository to use case', async () => {
      // TODO: Implement test
      // Scenario: Driver data flow
      // Given: A driver exists in the repository with specific statistics
      // And: The driver has rating 1500, rank 123, 10 starts, 3 wins, 5 podiums
      // When: GetDashboardUseCase.execute() is called
      // Then: The use case should retrieve driver data from repository
      // And: The use case should calculate derived statistics
      // And: The result should contain all driver statistics
    });

    it('should correctly flow race data from repository to use case', async () => {
      // TODO: Implement test
      // Scenario: Race data flow
      // Given: Multiple races exist in the repository
      // And: Some races are scheduled for the future
      // And: Some races are completed
      // When: GetDashboardUseCase.execute() is called
      // Then: The use case should retrieve upcoming races from repository
      // And: The use case should limit results to 3 races
      // And: The use case should sort races by scheduled date
    });

    it('should correctly flow league data from repository to use case', async () => {
      // TODO: Implement test
      // Scenario: League data flow
      // Given: Multiple leagues exist in the repository
      // And: The driver is participating in some leagues
      // When: GetDashboardUseCase.execute() is called
      // Then: The use case should retrieve league memberships from repository
      // And: The use case should calculate standings for each league
      // And: The result should contain league name, position, points, and driver count
    });

    it('should correctly flow activity data from repository to use case', async () => {
      // TODO: Implement test
      // Scenario: Activity data flow
      // Given: Multiple activities exist in the repository
      // And: Activities include race results and other events
      // When: GetDashboardUseCase.execute() is called
      // Then: The use case should retrieve recent activities from repository
      // And: The use case should sort activities by timestamp (newest first)
      // And: The result should contain activity type, description, and timestamp
    });
  });

  describe('Use Case to Presenter Data Flow', () => {
    it('should correctly transform use case result to DTO', async () => {
      // TODO: Implement test
      // Scenario: Use case result transformation
      // Given: A driver exists with complete data
      // And: GetDashboardUseCase.execute() returns a DashboardResult
      // When: DashboardPresenter.present() is called with the result
      // Then: The presenter should transform the result to DashboardDTO
      // And: The DTO should have correct structure and types
      // And: All fields should be properly formatted
    });

    it('should correctly handle empty data in DTO transformation', async () => {
      // TODO: Implement test
      // Scenario: Empty data transformation
      // Given: A driver exists with no data
      // And: GetDashboardUseCase.execute() returns a DashboardResult with empty sections
      // When: DashboardPresenter.present() is called
      // Then: The DTO should have empty arrays for sections
      // And: The DTO should have default values for statistics
      // And: The DTO structure should remain valid
    });

    it('should correctly format dates and times in DTO', async () => {
      // TODO: Implement test
      // Scenario: Date formatting in DTO
      // Given: A driver exists with upcoming races
      // And: Races have scheduled dates in the future
      // When: DashboardPresenter.present() is called
      // Then: The DTO should have formatted date strings
      // And: The DTO should have time-until-race strings
      // And: The DTO should have activity timestamps
    });
  });

  describe('Complete Data Flow: Repository -> Use Case -> Presenter', () => {
    it('should complete full data flow for driver with all data', async () => {
      // TODO: Implement test
      // Scenario: Complete data flow
      // Given: A driver exists with complete data in repositories
      // When: GetDashboardUseCase.execute() is called
      // And: DashboardPresenter.present() is called with the result
      // Then: The final DTO should contain:
      // - Driver statistics (rating, rank, starts, wins, podiums, leagues)
      // - Upcoming races (up to 3, sorted by date)
      // - Championship standings (league name, position, points, driver count)
      // - Recent activity (type, description, timestamp, status)
      // And: All data should be correctly transformed and formatted
    });

    it('should complete full data flow for new driver with no data', async () => {
      // TODO: Implement test
      // Scenario: Complete data flow for new driver
      // Given: A newly registered driver exists with no data
      // When: GetDashboardUseCase.execute() is called
      // And: DashboardPresenter.present() is called with the result
      // Then: The final DTO should contain:
      // - Basic driver statistics (rating, rank, starts, wins, podiums, leagues)
      // - Empty upcoming races array
      // - Empty championship standings array
      // - Empty recent activity array
      // And: All fields should have appropriate default values
    });

    it('should maintain data consistency across multiple data flows', async () => {
      // TODO: Implement test
      // Scenario: Data consistency
      // Given: A driver exists with data
      // When: GetDashboardUseCase.execute() is called multiple times
      // And: DashboardPresenter.present() is called for each result
      // Then: All DTOs should be identical
      // And: Data should remain consistent across calls
    });
  });

  describe('Data Transformation Edge Cases', () => {
    it('should handle driver with maximum upcoming races', async () => {
      // TODO: Implement test
      // Scenario: Maximum upcoming races
      // Given: A driver exists
      // And: The driver has 10 upcoming races scheduled
      // When: GetDashboardUseCase.execute() is called
      // And: DashboardPresenter.present() is called
      // Then: The DTO should contain exactly 3 upcoming races
      // And: The races should be the 3 earliest scheduled races
    });

    it('should handle driver with many championship standings', async () => {
      // TODO: Implement test
      // Scenario: Many championship standings
      // Given: A driver exists
      // And: The driver is participating in 5 championships
      // When: GetDashboardUseCase.execute() is called
      // And: DashboardPresenter.present() is called
      // Then: The DTO should contain standings for all 5 championships
      // And: Each standing should have correct data
    });

    it('should handle driver with many recent activities', async () => {
      // TODO: Implement test
      // Scenario: Many recent activities
      // Given: A driver exists
      // And: The driver has 20 recent activities
      // When: GetDashboardUseCase.execute() is called
      // And: DashboardPresenter.present() is called
      // Then: The DTO should contain all 20 activities
      // And: Activities should be sorted by timestamp (newest first)
    });

    it('should handle driver with mixed race statuses', async () => {
      // TODO: Implement test
      // Scenario: Mixed race statuses
      // Given: A driver exists
      // And: The driver has completed races, scheduled races, and cancelled races
      // When: GetDashboardUseCase.execute() is called
      // And: DashboardPresenter.present() is called
      // Then: Driver statistics should only count completed races
      // And: Upcoming races should only include scheduled races
      // And: Cancelled races should not appear in any section
    });
  });

  describe('DTO Structure Validation', () => {
    it('should validate DTO structure for complete dashboard', async () => {
      // TODO: Implement test
      // Scenario: DTO structure validation
      // Given: A driver exists with complete data
      // When: GetDashboardUseCase.execute() is called
      // And: DashboardPresenter.present() is called
      // Then: The DTO should have all required properties
      // And: Each property should have correct type
      // And: Nested objects should have correct structure
    });

    it('should validate DTO structure for empty dashboard', async () => {
      // TODO: Implement test
      // Scenario: Empty DTO structure validation
      // Given: A driver exists with no data
      // When: GetDashboardUseCase.execute() is called
      // And: DashboardPresenter.present() is called
      // Then: The DTO should have all required properties
      // And: Array properties should be empty arrays
      // And: Object properties should have default values
    });

    it('should validate DTO structure for partial data', async () => {
      // TODO: Implement test
      // Scenario: Partial DTO structure validation
      // Given: A driver exists with some data but not all
      // When: GetDashboardUseCase.execute() is called
      // And: DashboardPresenter.present() is called
      // Then: The DTO should have all required properties
      // And: Properties with data should have correct values
      // And: Properties without data should have appropriate defaults
    });
  });
});