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

const userEmailUpdatedMessage =
  '{"userId":"2436d413-b7c7-429e-9792-b78edc17b3ca","email":"new-john.doe@email.com"}';

const userPhoneUpdatedMessage =
  '{"userId":"2436d413-b7c7-429e-9792-b78edc17b3ca","phone":"+33611224455"}';

const userBirthDateUpdatedMessage =
  '{"userId":"2436d413-b7c7-429e-9792-b78edc17b3ca","birthDate":"1976-10-23"}';

const userIdNotProvidedUpdatedMessage =
  '{"user":"2436d413-b7c7-429e-9792-b78edc17b300","email":"new-john.doe@email.com"}';

const mockCommandBus = {
  execute: jest
    .fn()
    .mockImplementationOnce(() => 'new-john.doe@email.com')
    .mockImplementationOnce(() => '+33611224455'),
};

describe('User Updated Message Handler', () => {
  let userUpdatedMessageHandler: UserUpdatedMessageHandler;

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

    userUpdatedMessageHandler = module.get<UserUpdatedMessageHandler>(
      UserUpdatedMessageHandler,
    );
  });

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

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

  it('should update an email username', async () => {
    jest.spyOn(mockCommandBus, 'execute');
    await userUpdatedMessageHandler.userUpdated(userEmailUpdatedMessage);
    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
  });

  it('should update a phone username', async () => {
    jest.spyOn(mockCommandBus, 'execute');
    await userUpdatedMessageHandler.userUpdated(userPhoneUpdatedMessage);
    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
  });

  it('should not update a username if message does not contain email nor phone', async () => {
    jest.spyOn(mockCommandBus, 'execute');
    await userUpdatedMessageHandler.userUpdated(userBirthDateUpdatedMessage);
    expect(mockCommandBus.execute).toHaveBeenCalledTimes(0);
  });

  it('should not update a username if userId is unknown', async () => {
    jest.spyOn(mockCommandBus, 'execute');
    await userUpdatedMessageHandler.userUpdated(
      userIdNotProvidedUpdatedMessage,
    );
    expect(mockCommandBus.execute).toHaveBeenCalledTimes(0);
  });

  // it('should throw a dedicated RpcException if username already exists', async () => {
  //   jest.spyOn(mockCommandBus, 'execute');
  //   expect.assertions(3);
  //   try {
  //     await updateUsernameGrpcController.updateUsername(updateUsernameRequest);
  //   } catch (e: any) {
  //     expect(e).toBeInstanceOf(RpcException);
  //     expect(e.error.code).toBe(RpcExceptionCode.ALREADY_EXISTS);
  //   }
  //   expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
  // });

  // it('should throw a generic RpcException', async () => {
  //   jest.spyOn(mockCommandBus, 'execute');
  //   expect.assertions(3);
  //   try {
  //     await updateUsernameGrpcController.updateUsername(updateUsernameRequest);
  //   } catch (e: any) {
  //     expect(e).toBeInstanceOf(RpcException);
  //     expect(e.error.code).toBe(RpcExceptionCode.UNKNOWN);
  //   }
  //   expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
  // });
});