private void PrepareObservables()
{
this.WhenAnyValue(e => e.Username, p => p.Password, (emailAddress, password) => (!string.IsNullOrEmpty(emailAddress)) && !string.IsNullOrEmpty(password) && password.Length > 5)
.ToProperty(this, v => v.IsValid, out _isValid);
var canExecuteLogin = this.WhenAnyValue(x => x.IsLoading, x => x.IsValid, (isLoading, IsValid) => !isLoading && IsValid);
LoginCommand = ReactiveCommand.CreateFromTask(
async execute =>
{
var accessDTO = new Ref <AccessDTO>();
await RunSafe(ExecuteApi(LoginApi.GetToken(new UserInfoDTO {
AccessKey = Password, UserId = Username
}), accessDTO));
if (accessDTO.Value.Authenticated)
{
await SecurityData.SaveUser(accessDTO.Value);
HostScreen.Router.Navigate.Execute(new IntentionsList()).Subscribe();
}
}, canExecuteLogin);
this.WhenAnyObservable(x => x.LoginCommand.IsExecuting)
.StartWith(false)
.ToProperty(this, x => x.IsLoading, out _isLoading);
}