class ProfileView {
	var refreshButton: Button
	var fullNameLabel: Label
	var ageLabel: Label

	var viewmodel: ProfileViewModelProtocol


	init(viewModel: ProfileViewModelProtocol) {
		self.viewModel = ProfileViewModel
	}

	func viewDidLoad() {
		viewModel.fullName.bind(to: fullNameLabel)
		viewModel.age.bind(to: ageLabel)

		viewModel.loading.bind(to: activityIndicator.isShowing)
		viewModel.errors.subscribeNext { error in
			showAlert(error)
		}

		view.pullToRefresh.tap.bind(to: viewmodel.didTapRefresh)
	}

	func showAlert(error: Error) {
		//Do something
	}
}



class LoginView {
	var userNameTextfield
	var passwordTextfield

	var loginButton

	var loading
	var errors


	func viewDidLoad() {
		userNameTextfield.rx_textfield.bind(to: viewmodel.username)
		passwordTextfield.rx_textfield.bind(to: viewmodel.password)

		loginButton.rx_tap.bind(to: viewmodel.didTapLogin)

		viewmodel.validInput.bind(to: loginButton.isEnabled)

		viewmodel.onSuccess.subsribeNext {
			//Change to main screen
		}
	}
}


class LoginViewModel {
	//Input
	var username: Observable<String>
	var password: Observable<String>

	var didTapLogin: PublishSubject<Void>

	//Output
	var validInput: Observable<Bool>(false)

	var loading: PublishSubject<Void>
	var onSuccess: PublishSubject<Void>
	var errors: PublishSubject<Error>

	var loginService: LoginService 

	init() {
		combineLatest(username, password).map { TextUltis.notEmpty(username) && TextUltis.notEmpty(password) }.bind(to: validInput)

		didTapLogin.subscribeNext {
			loginService.login(username, password).subscribeNext {
				onSuccess.next()
			}
		}

		didTapLogin.flatMap { loginService.login(username, password) }.bind(to: onSuccess)
	}
}

class LoginService {
	func login(userName: String, password: String) -> Observable<Void> {
		return Observable.create { observer in
			observer.next()
			observer.completed()
		}
	}
}