import { describe, it, expect, beforeEach } from 'vitest';
import { OnboardingTestContext } from '../OnboardingTestContext';

describe('CompleteDriverOnboardingUseCase - Validation & Errors', () => {
  let context: OnboardingTestContext;

  beforeEach(async () => {
    context = OnboardingTestContext.create();
    await context.clear();
  });

  it('should reject onboarding if driver already exists', async () => {
    // Scenario: Already onboarded user
    // Given: A driver already exists for the user
    const userId = 'existing-user';
    const existingInput = {
      userId,
      firstName: 'Old',
      lastName: 'Name',
      displayName: 'OldRacer',
      country: 'DE',
    };
    await context.completeDriverOnboardingUseCase.execute(existingInput);

    // When: CompleteDriverOnboardingUseCase.execute() is called again for same user
    const result = await context.completeDriverOnboardingUseCase.execute({
      userId,
      firstName: 'New',
      lastName: 'Name',
      displayName: 'NewRacer',
      country: 'FR',
    });

    // Then: Should return DRIVER_ALREADY_EXISTS error
    expect(result.isErr()).toBe(true);
    const error = result.unwrapErr();
    expect(error.code).toBe('DRIVER_ALREADY_EXISTS');
  });

  it('should handle repository errors gracefully', async () => {
    // Scenario: Repository error
    // Given: Repository throws an error
    const userId = 'error-user';
    const originalCreate = context.driverRepository.create.bind(context.driverRepository);
    context.driverRepository.create = async () => {
      throw new Error('Database failure');
    };

    // When: CompleteDriverOnboardingUseCase.execute() is called
    const result = await context.completeDriverOnboardingUseCase.execute({
      userId,
      firstName: 'John',
      lastName: 'Doe',
      displayName: 'RacerJohn',
      country: 'US',
    });

    // Then: Should return REPOSITORY_ERROR
    expect(result.isErr()).toBe(true);
    const error = result.unwrapErr();
    expect(error.code).toBe('REPOSITORY_ERROR');
    expect(error.details.message).toBe('Database failure');

    // Restore
    context.driverRepository.create = originalCreate;
  });
});