import { UserDeletedMessageHandler } from '@modules/authentication/interface/message-handlers/user-deleted.message-handler';
import { CommandBus } from '@nestjs/cqrs';
import { Test, TestingModule } from '@nestjs/testing';

const userDeletedMessage = '{"id":"2436d413-b7c7-429e-9792-b78edc17b3ca"}';

const userIdNotProvidedDeletedMessage =
  '{"userId":"2436d413-b7c7-429e-9792-b78edc17b300"}';

const mockCommandBus = {
  execute: jest.fn().mockImplementationOnce(() => 'john.doe@email.com'),
};

describe('User Deleted Message Handler', () => {
  let userDeletedMessageHandler: UserDeletedMessageHandler;

  beforeAll(async () => {
    const module: TestingModule = await Test.createTestingModule({
      providers: [
        {
          provide: CommandBus,
          useValue: mockCommandBus,
        },
        UserDeletedMessageHandler,
      ],
    }).compile();

    userDeletedMessageHandler = module.get<UserDeletedMessageHandler>(
      UserDeletedMessageHandler,
    );
  });

  afterEach(async () => {
    jest.clearAllMocks();
  });

  it('should be defined', () => {
    expect(userDeletedMessageHandler).toBeDefined();
  });

  it('should delete an authentication', async () => {
    jest.spyOn(mockCommandBus, 'execute');
    await userDeletedMessageHandler.userDeleted(userDeletedMessage);
    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
  });

  it('should not update an authentication if userId is not provided', async () => {
    jest.spyOn(mockCommandBus, 'execute');
    await userDeletedMessageHandler.userDeleted(
      userIdNotProvidedDeletedMessage,
    );
    expect(mockCommandBus.execute).toHaveBeenCalledTimes(0);
  });
});