import UIKit

class LoginResponse {
    var code: Int = 0
    var user: UserDto

    init(code: Int, userDto: UserDto) {
        self.code = code
        self.user = userDto
    }
}

class User {
    var firstName: String = ""
    var lastName: String = ""
}

class UserDto {
    var firstName: String = ""
    var lastName: String = ""
}

class FakeUserRepository {
    func find(username: String, password: String) -> User {
        let user = User()
        user.firstName = "Christian"
        user.lastName = "Bergau"
        return user
    }
}

class LoginInteractor {
    var userRepository: FakeUserRepository

    init(userRepository: FakeUserRepository) {
        self.userRepository = userRepository
    }

    func execute(username: String, password: String) -> LoginResponse {
        let user = self.userRepository.find(username, password: password);
        let userDto = UserDto();
        userDto.firstName = user.firstName
        userDto.lastName = user.lastName
        return LoginResponse(code: 1, userDto: userDto)
    }
}

var repository = FakeUserRepository()
var interactor = LoginInteractor(userRepository: repository)
var result: LoginResponse = interactor.execute("Christian", password: "secret")

print(result.code)
print(result.user.firstName + " " + result.user.lastName)