RPallas92

enum Event {
    case addTodo(Todo)
    case toggleTodo(Todo)
    case setVisibilityFilter(VisibilityFilter)
}

RPallas92

func reduce(state: State, event: Event) -> State {
    switch event {
    case .addTodo(let todo):
        var newState = state
        newState.todos = state.todos + [todo]
        return newState
    case .toggleTodo(let todo):
        var newState = state
        newState.todos = state.todos.map { t in
            var newTodo = t

RPallas92

func loginWithFacebook() -> AsyncResult<Context, String, GenericError> {
    return AsyncResult.unfoldTT{ context, continuation in
        let loginManager = LoginManager()
        loginManager.logIn([ .publicProfile ], viewController: self) { loginResult in
            switch loginResult {
            case .Failed(let error):
                continuation(Result.failure(error))
            case .Cancelled:
                continuation(Result.failure(LoginCancelledError()))
            case .Success(let grantedPermissions, let declinedPermissions, let accessToken):

RPallas92

enum Event {
    case addTodo(Todo)
    case toggleTodo(Todo)
    case setVisibilityFilter(VisibilityFilter)
    case storeTodos()
    case todosStored(Bool)
}

struct State {
  var todos: [Todo]

RPallas92

class CounterViewController: UIViewController {
    @IBOutlet weak var label: UILabel?
    @IBOutlet weak var minus: UIButton?
    @IBOutlet weak var plus: UIButton?


    override func viewDidLoad() {
        super.viewDidLoad()

        typealias State = Int

RPallas92

protocol BaseContext {
    var cloudKitApiKey: String {get}
    var todosDataSource: TodosDataSource {get}
}
class AppContext: BaseContext {
    var cloudKitApiKey = "sjsfAJ&76sdgjhs3434JHS3"
    var todosDataSource: TodosDataSource = TodosCloudKitDataSource()
}

class TodosListContext: AppContext {