import { describe, it, expect, beforeEach } from 'vitest';
import { LeaguesTestContext } from '../LeaguesTestContext';
import { LeagueCreateCommand } from '../../../../core/leagues/application/ports/LeagueCreateCommand';
import { InMemoryLeagueRepository } from '../../../../adapters/leagues/persistence/inmemory/InMemoryLeagueRepository';
import { CreateLeagueUseCase } from '../../../../core/leagues/application/use-cases/CreateLeagueUseCase';

describe('League Creation - Error Handling', () => {
  let context: LeaguesTestContext;

  beforeEach(() => {
    context = new LeaguesTestContext();
    context.clear();
  });

  it('should throw error when driver ID is invalid', async () => {
    const command: LeagueCreateCommand = {
      name: 'Test League',
      visibility: 'public',
      ownerId: '',
      approvalRequired: false,
      lateJoinAllowed: false,
      bonusPointsEnabled: false,
      penaltiesEnabled: false,
      protestsEnabled: false,
      appealsEnabled: false,
    };

    await expect(context.createLeagueUseCase.execute(command)).rejects.toThrow('Owner ID is required');
    expect(context.eventPublisher.getLeagueCreatedEventCount()).toBe(0);
  });

  it('should throw error when league name is empty', async () => {
    const command: LeagueCreateCommand = {
      name: '',
      visibility: 'public',
      ownerId: 'driver-123',
      approvalRequired: false,
      lateJoinAllowed: false,
      bonusPointsEnabled: false,
      penaltiesEnabled: false,
      protestsEnabled: false,
      appealsEnabled: false,
    };

    await expect(context.createLeagueUseCase.execute(command)).rejects.toThrow();
    expect(context.eventPublisher.getLeagueCreatedEventCount()).toBe(0);
  });

  it('should throw error when repository throws error', async () => {
    const errorRepo = new InMemoryLeagueRepository();
    errorRepo.create = async () => { throw new Error('Database error'); };
    const errorUseCase = new CreateLeagueUseCase(errorRepo, context.eventPublisher);

    const command: LeagueCreateCommand = {
      name: 'Test League',
      visibility: 'public',
      ownerId: 'driver-123',
      approvalRequired: false,
      lateJoinAllowed: false,
      bonusPointsEnabled: false,
      penaltiesEnabled: false,
      protestsEnabled: false,
      appealsEnabled: false,
    };

    await expect(errorUseCase.execute(command)).rejects.toThrow('Database error');
    expect(context.eventPublisher.getLeagueCreatedEventCount()).toBe(0);
  });
});