/**
 * Integration Test: Sponsor Leagues Use Case Orchestration
 * 
 * Tests the orchestration logic of sponsor leagues-related Use Cases:
 * - GetAvailableLeaguesUseCase: Retrieves available leagues for sponsorship
 * - GetLeagueStatisticsUseCase: Retrieves league statistics
 * - FilterLeaguesUseCase: Filters leagues by availability
 * - SearchLeaguesUseCase: Searches leagues by query
 * - 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 { InMemorySponsorRepository } from '../../../adapters/sponsors/persistence/inmemory/InMemorySponsorRepository';
import { InMemoryLeagueRepository } from '../../../adapters/leagues/persistence/inmemory/InMemoryLeagueRepository';
import { InMemoryEventPublisher } from '../../../adapters/events/InMemoryEventPublisher';
import { GetAvailableLeaguesUseCase } from '../../../core/sponsors/use-cases/GetAvailableLeaguesUseCase';
import { GetLeagueStatisticsUseCase } from '../../../core/sponsors/use-cases/GetLeagueStatisticsUseCase';
import { FilterLeaguesUseCase } from '../../../core/sponsors/use-cases/FilterLeaguesUseCase';
import { SearchLeaguesUseCase } from '../../../core/sponsors/use-cases/SearchLeaguesUseCase';
import { GetAvailableLeaguesQuery } from '../../../core/sponsors/ports/GetAvailableLeaguesQuery';
import { GetLeagueStatisticsQuery } from '../../../core/sponsors/ports/GetLeagueStatisticsQuery';
import { FilterLeaguesCommand } from '../../../core/sponsors/ports/FilterLeaguesCommand';
import { SearchLeaguesCommand } from '../../../core/sponsors/ports/SearchLeaguesCommand';

describe('Sponsor Leagues Use Case Orchestration', () => {
  let sponsorRepository: InMemorySponsorRepository;
  let leagueRepository: InMemoryLeagueRepository;
  let eventPublisher: InMemoryEventPublisher;
  let getAvailableLeaguesUseCase: GetAvailableLeaguesUseCase;
  let getLeagueStatisticsUseCase: GetLeagueStatisticsUseCase;
  let filterLeaguesUseCase: FilterLeaguesUseCase;
  let searchLeaguesUseCase: SearchLeaguesUseCase;

  beforeAll(() => {
    // TODO: Initialize In-Memory repositories and event publisher
    // sponsorRepository = new InMemorySponsorRepository();
    // leagueRepository = new InMemoryLeagueRepository();
    // eventPublisher = new InMemoryEventPublisher();
    // getAvailableLeaguesUseCase = new GetAvailableLeaguesUseCase({
    //   sponsorRepository,
    //   leagueRepository,
    //   eventPublisher,
    // });
    // getLeagueStatisticsUseCase = new GetLeagueStatisticsUseCase({
    //   sponsorRepository,
    //   leagueRepository,
    //   eventPublisher,
    // });
    // filterLeaguesUseCase = new FilterLeaguesUseCase({
    //   sponsorRepository,
    //   leagueRepository,
    //   eventPublisher,
    // });
    // searchLeaguesUseCase = new SearchLeaguesUseCase({
    //   sponsorRepository,
    //   leagueRepository,
    //   eventPublisher,
    // });
  });

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

  describe('GetAvailableLeaguesUseCase - Success Path', () => {
    it('should retrieve available leagues for sponsorship', async () => {
      // TODO: Implement test
      // Scenario: Sponsor with available leagues
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are 5 leagues available for sponsorship
      // When: GetAvailableLeaguesUseCase.execute() is called with sponsor ID
      // Then: The result should contain all 5 leagues
      // And: Each league should display its details
      // And: EventPublisher should emit AvailableLeaguesAccessedEvent
    });

    it('should retrieve leagues with minimal data', async () => {
      // TODO: Implement test
      // Scenario: Sponsor with minimal leagues
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There is 1 league available for sponsorship
      // When: GetAvailableLeaguesUseCase.execute() is called with sponsor ID
      // Then: The result should contain the single league
      // And: EventPublisher should emit AvailableLeaguesAccessedEvent
    });

    it('should retrieve leagues with empty result', async () => {
      // TODO: Implement test
      // Scenario: Sponsor with no available leagues
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are no leagues available for sponsorship
      // When: GetAvailableLeaguesUseCase.execute() is called with sponsor ID
      // Then: The result should be empty
      // And: EventPublisher should emit AvailableLeaguesAccessedEvent
    });
  });

  describe('GetAvailableLeaguesUseCase - Error Handling', () => {
    it('should throw error when sponsor does not exist', async () => {
      // TODO: Implement test
      // Scenario: Non-existent sponsor
      // Given: No sponsor exists with the given ID
      // When: GetAvailableLeaguesUseCase.execute() is called with non-existent sponsor ID
      // Then: Should throw SponsorNotFoundError
      // And: EventPublisher should NOT emit any events
    });

    it('should throw error when sponsor ID is invalid', async () => {
      // TODO: Implement test
      // Scenario: Invalid sponsor ID
      // Given: An invalid sponsor ID (e.g., empty string, null, undefined)
      // When: GetAvailableLeaguesUseCase.execute() is called with invalid sponsor ID
      // Then: Should throw ValidationError
      // And: EventPublisher should NOT emit any events
    });
  });

  describe('GetLeagueStatisticsUseCase - Success Path', () => {
    it('should retrieve league statistics', async () => {
      // TODO: Implement test
      // Scenario: Sponsor with league statistics
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are 10 leagues available
      // And: There are 3 main sponsor slots available
      // And: There are 15 secondary sponsor slots available
      // And: There are 500 total drivers
      // And: Average CPM is $50
      // When: GetLeagueStatisticsUseCase.execute() is called with sponsor ID
      // Then: The result should show total leagues count: 10
      // And: The result should show main sponsor slots available: 3
      // And: The result should show secondary sponsor slots available: 15
      // And: The result should show total drivers count: 500
      // And: The result should show average CPM: $50
      // And: EventPublisher should emit LeagueStatisticsAccessedEvent
    });

    it('should retrieve statistics with zero values', async () => {
      // TODO: Implement test
      // Scenario: Sponsor with no leagues
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are no leagues available
      // When: GetLeagueStatisticsUseCase.execute() is called with sponsor ID
      // Then: The result should show all counts as 0
      // And: The result should show average CPM as 0
      // And: EventPublisher should emit LeagueStatisticsAccessedEvent
    });
  });

  describe('GetLeagueStatisticsUseCase - Error Handling', () => {
    it('should throw error when sponsor does not exist', async () => {
      // TODO: Implement test
      // Scenario: Non-existent sponsor
      // Given: No sponsor exists with the given ID
      // When: GetLeagueStatisticsUseCase.execute() is called with non-existent sponsor ID
      // Then: Should throw SponsorNotFoundError
      // And: EventPublisher should NOT emit any events
    });
  });

  describe('FilterLeaguesUseCase - Success Path', () => {
    it('should filter leagues by "All" availability', async () => {
      // TODO: Implement test
      // Scenario: Filter by All
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are 5 leagues (3 with main slot available, 2 with secondary slots available)
      // When: FilterLeaguesUseCase.execute() is called with availability "All"
      // Then: The result should contain all 5 leagues
      // And: EventPublisher should emit LeaguesFilteredEvent
    });

    it('should filter leagues by "Main Slot Available" availability', async () => {
      // TODO: Implement test
      // Scenario: Filter by Main Slot Available
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are 5 leagues (3 with main slot available, 2 with secondary slots available)
      // When: FilterLeaguesUseCase.execute() is called with availability "Main Slot Available"
      // Then: The result should contain only 3 leagues with main slot available
      // And: EventPublisher should emit LeaguesFilteredEvent
    });

    it('should filter leagues by "Secondary Slot Available" availability', async () => {
      // TODO: Implement test
      // Scenario: Filter by Secondary Slot Available
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are 5 leagues (3 with main slot available, 2 with secondary slots available)
      // When: FilterLeaguesUseCase.execute() is called with availability "Secondary Slot Available"
      // Then: The result should contain only 2 leagues with secondary slots available
      // And: EventPublisher should emit LeaguesFilteredEvent
    });

    it('should return empty result when no leagues match filter', async () => {
      // TODO: Implement test
      // Scenario: Filter with no matches
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are 2 leagues with main slot available
      // When: FilterLeaguesUseCase.execute() is called with availability "Secondary Slot Available"
      // Then: The result should be empty
      // And: EventPublisher should emit LeaguesFilteredEvent
    });
  });

  describe('FilterLeaguesUseCase - Error Handling', () => {
    it('should throw error when sponsor does not exist', async () => {
      // TODO: Implement test
      // Scenario: Non-existent sponsor
      // Given: No sponsor exists with the given ID
      // When: FilterLeaguesUseCase.execute() is called with non-existent sponsor ID
      // Then: Should throw SponsorNotFoundError
      // And: EventPublisher should NOT emit any events
    });

    it('should throw error with invalid availability', async () => {
      // TODO: Implement test
      // Scenario: Invalid availability
      // Given: A sponsor exists with ID "sponsor-123"
      // When: FilterLeaguesUseCase.execute() is called with invalid availability
      // Then: Should throw ValidationError
      // And: EventPublisher should NOT emit any events
    });
  });

  describe('SearchLeaguesUseCase - Success Path', () => {
    it('should search leagues by league name', async () => {
      // TODO: Implement test
      // Scenario: Search by league name
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are leagues named: "Premier League", "League A", "League B"
      // When: SearchLeaguesUseCase.execute() is called with query "Premier League"
      // Then: The result should contain only "Premier League"
      // And: EventPublisher should emit LeaguesSearchedEvent
    });

    it('should search leagues by partial match', async () => {
      // TODO: Implement test
      // Scenario: Search by partial match
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are leagues named: "Premier League", "League A", "League B"
      // When: SearchLeaguesUseCase.execute() is called with query "League"
      // Then: The result should contain all three leagues
      // And: EventPublisher should emit LeaguesSearchedEvent
    });

    it('should return empty result when no leagues match search', async () => {
      // TODO: Implement test
      // Scenario: Search with no matches
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are leagues named: "League A", "League B"
      // When: SearchLeaguesUseCase.execute() is called with query "NonExistent"
      // Then: The result should be empty
      // And: EventPublisher should emit LeaguesSearchedEvent
    });

    it('should return all leagues when search query is empty', async () => {
      // TODO: Implement test
      // Scenario: Search with empty query
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are 3 leagues available
      // When: SearchLeaguesUseCase.execute() is called with empty query
      // Then: The result should contain all 3 leagues
      // And: EventPublisher should emit LeaguesSearchedEvent
    });
  });

  describe('SearchLeaguesUseCase - Error Handling', () => {
    it('should throw error when sponsor does not exist', async () => {
      // TODO: Implement test
      // Scenario: Non-existent sponsor
      // Given: No sponsor exists with the given ID
      // When: SearchLeaguesUseCase.execute() is called with non-existent sponsor ID
      // Then: Should throw SponsorNotFoundError
      // And: EventPublisher should NOT emit any events
    });

    it('should throw error with invalid query', async () => {
      // TODO: Implement test
      // Scenario: Invalid query
      // Given: A sponsor exists with ID "sponsor-123"
      // When: SearchLeaguesUseCase.execute() is called with invalid query (e.g., null, undefined)
      // Then: Should throw ValidationError
      // And: EventPublisher should NOT emit any events
    });
  });

  describe('League Data Orchestration', () => {
    it('should correctly aggregate league statistics', async () => {
      // TODO: Implement test
      // Scenario: League statistics aggregation
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are 5 leagues with different slot availability
      // And: There are 3 main sponsor slots available
      // And: There are 15 secondary sponsor slots available
      // And: There are 500 total drivers
      // And: Average CPM is $50
      // When: GetLeagueStatisticsUseCase.execute() is called
      // Then: Total leagues should be 5
      // And: Main sponsor slots available should be 3
      // And: Secondary sponsor slots available should be 15
      // And: Total drivers count should be 500
      // And: Average CPM should be $50
      // And: EventPublisher should emit LeagueStatisticsAccessedEvent
    });

    it('should correctly filter leagues by availability', async () => {
      // TODO: Implement test
      // Scenario: League availability filtering
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are leagues with different slot availability
      // When: FilterLeaguesUseCase.execute() is called with "Main Slot Available"
      // Then: Only leagues with main slot available should be returned
      // And: Each league should have correct availability
      // And: EventPublisher should emit LeaguesFilteredEvent
    });

    it('should correctly search leagues by name', async () => {
      // TODO: Implement test
      // Scenario: League name search
      // Given: A sponsor exists with ID "sponsor-123"
      // And: There are leagues with different names
      // When: SearchLeaguesUseCase.execute() is called with league name
      // Then: Only leagues with matching names should be returned
      // And: Each league should have correct name
      // And: EventPublisher should emit LeaguesSearchedEvent
    });
  });
});