/**
 * Integration Test: Global Leaderboards Use Case Orchestration
 * 
 * Tests the orchestration logic of global leaderboards-related Use Cases:
 * - GetGlobalLeaderboardsUseCase: Retrieves top drivers and teams for the main leaderboards page
 * - Validates that Use Cases correctly interact with their Ports (Repositories, Event Publishers)
 * - Uses In-Memory adapters for fast, deterministic testing
 * 
 * Focus: Business logic orchestration, NOT UI rendering
 */

import { describe, it, expect, beforeAll, afterAll, beforeEach } from 'vitest';
import { InMemoryDriverRepository } from '../../../adapters/drivers/persistence/inmemory/InMemoryDriverRepository';
import { InMemoryTeamRepository } from '../../../adapters/teams/persistence/inmemory/InMemoryTeamRepository';
import { InMemoryEventPublisher } from '../../../adapters/events/InMemoryEventPublisher';
import { GetGlobalLeaderboardsUseCase } from '../../../core/leaderboards/use-cases/GetGlobalLeaderboardsUseCase';
import { GlobalLeaderboardsQuery } from '../../../core/leaderboards/ports/GlobalLeaderboardsQuery';

describe('Global Leaderboards Use Case Orchestration', () => {
  let driverRepository: InMemoryDriverRepository;
  let teamRepository: InMemoryTeamRepository;
  let eventPublisher: InMemoryEventPublisher;
  let getGlobalLeaderboardsUseCase: GetGlobalLeaderboardsUseCase;

  beforeAll(() => {
    // TODO: Initialize In-Memory repositories and event publisher
    // driverRepository = new InMemoryDriverRepository();
    // teamRepository = new InMemoryTeamRepository();
    // eventPublisher = new InMemoryEventPublisher();
    // getGlobalLeaderboardsUseCase = new GetGlobalLeaderboardsUseCase({
    //   driverRepository,
    //   teamRepository,
    //   eventPublisher,
    // });
  });

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

  describe('GetGlobalLeaderboardsUseCase - Success Path', () => {
    it('should retrieve top drivers and teams with complete data', async () => {
      // TODO: Implement test
      // Scenario: System has multiple drivers and teams with complete data
      // Given: Multiple drivers exist with various ratings and team affiliations
      // And: Multiple teams exist with various ratings and member counts
      // And: Drivers are ranked by rating (highest first)
      // And: Teams are ranked by rating (highest first)
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: The result should contain top 10 drivers
      // And: The result should contain top 10 teams
      // And: Driver entries should include rank, name, rating, and team affiliation
      // And: Team entries should include rank, name, rating, and member count
      // And: EventPublisher should emit GlobalLeaderboardsAccessedEvent
    });

    it('should retrieve top drivers and teams with minimal data', async () => {
      // TODO: Implement test
      // Scenario: System has minimal data
      // Given: Only a few drivers exist
      // And: Only a few teams exist
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: The result should contain all available drivers
      // And: The result should contain all available teams
      // And: EventPublisher should emit GlobalLeaderboardsAccessedEvent
    });

    it('should retrieve top drivers and teams when there are many', async () => {
      // TODO: Implement test
      // Scenario: System has many drivers and teams
      // Given: More than 10 drivers exist
      // And: More than 10 teams exist
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: The result should contain only top 10 drivers
      // And: The result should contain only top 10 teams
      // And: Drivers should be sorted by rating (highest first)
      // And: Teams should be sorted by rating (highest first)
      // And: EventPublisher should emit GlobalLeaderboardsAccessedEvent
    });

    it('should retrieve top drivers and teams with consistent ranking order', async () => {
      // TODO: Implement test
      // Scenario: Verify ranking consistency
      // Given: Multiple drivers exist with various ratings
      // And: Multiple teams exist with various ratings
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: Driver ranks should be sequential (1, 2, 3...)
      // And: Team ranks should be sequential (1, 2, 3...)
      // And: No duplicate ranks should appear
      // And: EventPublisher should emit GlobalLeaderboardsAccessedEvent
    });

    it('should retrieve top drivers and teams with accurate data', async () => {
      // TODO: Implement test
      // Scenario: Verify data accuracy
      // Given: Drivers exist with valid ratings and names
      // And: Teams exist with valid ratings and member counts
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: All driver ratings should be valid numbers
      // And: All team ratings should be valid numbers
      // And: All team member counts should be valid numbers
      // And: All names should be non-empty strings
      // And: EventPublisher should emit GlobalLeaderboardsAccessedEvent
    });
  });

  describe('GetGlobalLeaderboardsUseCase - Edge Cases', () => {
    it('should handle system with no drivers', async () => {
      // TODO: Implement test
      // Scenario: System has no drivers
      // Given: No drivers exist in the system
      // And: Teams exist
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: The result should contain empty drivers list
      // And: The result should contain top teams
      // And: EventPublisher should emit GlobalLeaderboardsAccessedEvent
    });

    it('should handle system with no teams', async () => {
      // TODO: Implement test
      // Scenario: System has no teams
      // Given: Drivers exist
      // And: No teams exist in the system
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: The result should contain top drivers
      // And: The result should contain empty teams list
      // And: EventPublisher should emit GlobalLeaderboardsAccessedEvent
    });

    it('should handle system with no data at all', async () => {
      // TODO: Implement test
      // Scenario: System has absolutely no data
      // Given: No drivers exist
      // And: No teams exist
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: The result should contain empty drivers list
      // And: The result should contain empty teams list
      // And: EventPublisher should emit GlobalLeaderboardsAccessedEvent
    });

    it('should handle drivers with same rating', async () => {
      // TODO: Implement test
      // Scenario: Multiple drivers with identical ratings
      // Given: Multiple drivers exist with the same rating
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: Drivers should be sorted by rating
      // And: Drivers with same rating should have consistent ordering (e.g., by name)
      // And: EventPublisher should emit GlobalLeaderboardsAccessedEvent
    });

    it('should handle teams with same rating', async () => {
      // TODO: Implement test
      // Scenario: Multiple teams with identical ratings
      // Given: Multiple teams exist with the same rating
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: Teams should be sorted by rating
      // And: Teams with same rating should have consistent ordering (e.g., by name)
      // And: EventPublisher should emit GlobalLeaderboardsAccessedEvent
    });
  });

  describe('GetGlobalLeaderboardsUseCase - Error Handling', () => {
    it('should handle repository errors gracefully', async () => {
      // TODO: Implement test
      // Scenario: Repository throws error
      // Given: DriverRepository throws an error during query
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: Should propagate the error appropriately
      // And: EventPublisher should NOT emit any events
    });

    it('should handle team repository errors gracefully', async () => {
      // TODO: Implement test
      // Scenario: Team repository throws error
      // Given: TeamRepository throws an error during query
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: Should propagate the error appropriately
      // And: EventPublisher should NOT emit any events
    });
  });

  describe('Global Leaderboards Data Orchestration', () => {
    it('should correctly calculate driver rankings based on rating', async () => {
      // TODO: Implement test
      // Scenario: Driver ranking calculation
      // Given: Drivers exist with ratings: 5.0, 4.8, 4.5, 4.2, 4.0
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: Driver rankings should be:
      // - Rank 1: Driver with rating 5.0
      // - Rank 2: Driver with rating 4.8
      // - Rank 3: Driver with rating 4.5
      // - Rank 4: Driver with rating 4.2
      // - Rank 5: Driver with rating 4.0
    });

    it('should correctly calculate team rankings based on rating', async () => {
      // TODO: Implement test
      // Scenario: Team ranking calculation
      // Given: Teams exist with ratings: 4.9, 4.7, 4.6, 4.3, 4.1
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: Team rankings should be:
      // - Rank 1: Team with rating 4.9
      // - Rank 2: Team with rating 4.7
      // - Rank 3: Team with rating 4.6
      // - Rank 4: Team with rating 4.3
      // - Rank 5: Team with rating 4.1
    });

    it('should correctly format driver entries with team affiliation', async () => {
      // TODO: Implement test
      // Scenario: Driver entry formatting
      // Given: A driver exists with team affiliation
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: Driver entry should include:
      // - Rank: Sequential number
      // - Name: Driver's full name
      // - Rating: Driver's rating (formatted)
      // - Team: Team name and logo (if available)
    });

    it('should correctly format team entries with member count', async () => {
      // TODO: Implement test
      // Scenario: Team entry formatting
      // Given: A team exists with members
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: Team entry should include:
      // - Rank: Sequential number
      // - Name: Team's name
      // - Rating: Team's rating (formatted)
      // - Member Count: Number of drivers in team
    });

    it('should limit results to top 10 drivers and teams', async () => {
      // TODO: Implement test
      // Scenario: Result limiting
      // Given: More than 10 drivers exist
      // And: More than 10 teams exist
      // When: GetGlobalLeaderboardsUseCase.execute() is called
      // Then: Only top 10 drivers should be returned
      // And: Only top 10 teams should be returned
      // And: Results should be sorted by rating (highest first)
    });
  });
});