protected override async Task <ValidationResult> OnValidate(Func <AppState> getState, LoginAction action, IMultiDispatcher dispatcher, CancellationToken cancellationToken)
{
dispatcher.DispatchImmediate(new LoginStartedAction());
string authToken = "";
List <ValidationDetails> validationDetails = new List <ValidationDetails>();
if (string.IsNullOrWhiteSpace(action.UserName))
{
validationDetails.Add(new ValidationDetails("UserName", "Username cannot be empty"));
}
else if (string.IsNullOrWhiteSpace(action.Password))
{
validationDetails.Add(new ValidationDetails("Password", "Password cannot be empty"));
}
else
{
var result = await _loginService.Login(action.UserName, action.Password);
if (!result.Success)
{
validationDetails.Add(new ValidationDetails("*", "Invalid username/password"));
}
authToken = result.Token;
}
if (validationDetails.Count > 0)
{
return(ValidationResult.Failure(new ValidationException("One or more error occured while loging in.", validationDetails.AsEnumerable())));
}
dispatcher.DispatchImmediate(new LoginSuccessfulAction(action.UserName, authToken));
return(ValidationResult.Success());
}
protected override async Task OnProcess(Func <AppState> getState, LoginAction action, IMultiDispatcher dispatcher, CancellationToken cancellationToken)
{
List <Friend> friends = new List <Friend>();
try
{
cancellationToken.ThrowIfCancellationRequested();
dispatcher.DispatchImmediate(new LoadingFriendListAction());
var state = getState();
friends = await _friendService.GetFriends(state.UserName, state.AuthToken).AsCancelable(cancellationToken).ConfigureAwait(false);
}
finally
{
dispatcher.Dispatch(new AddToFriendListAction(friends));
}
}