private async void LoginWithFacebook()
{
try
{
var result = await LoginUserService.LoginWithFacebookAsync();
if (result == null)
{
throw new LoginException("Failed to Login in with Facebook");
}
string username = await GetUsernameService.GetUsernameAsync(result.UserId);
if (string.IsNullOrEmpty(username))
{
await Navigation.PushAsync(new EnterUsernamePage(result));
return;
}
result.Username = username;
SaveUserSecurityService.SaveUser(result);
MessageBus.Publish(new LoginCompleteMessage());
await Navigation.PushModalAsync(new ScorePredictNavigationPage(new MainPage()));
}
catch (LoginException lex)
{
DialogService.Alert(lex.Message);
}
catch (Exception ex)
{
DialogService.Alert("Login Failed. Please try again.");
}
}
private async void CreateUser()
{
try
{
var result = await CreateUserService.CreateUserAsync(
Username,
Password,
ConfirmPassword);
if (result == null)
{
throw new CreateUserException("An error occured creating your user. Please try again");
}
SaveUserSecurityService.SaveUser(result);
await Navigation.PushModalAsync(new ScorePredictNavigationPage(new MainPage()));
await Navigation.PopToRootAsync(false);
}
catch (CreateUserException ex)
{
DialogService.Alert(ex.Message);
}
catch
{
DialogService.Alert("An unknown error occurred. Please try again");
}
}
private async void Login()
{
try
{
DialogService.ShowLoading("Authenticating...");
var user = await LoginUserService.LoginAsync(Username, Password);
if (user == null)
{
throw new LoginException("Invalid Username Password combination");
}
if (string.IsNullOrEmpty(user.Username))
{
await Navigation.PushAsync(new EnterUsernamePage(user));
return; // end execution
}
SaveUserSecurityService.SaveUser(user);
Username = string.Empty;
Password = string.Empty;
MessageBus.Publish(new LoginCompleteMessage());
await Navigation.PushModalAsync(new ScorePredictNavigationPage(new MainPage()));
}
catch (LoginException lex)
{
DialogService.Alert(lex.Message);
}
catch (Exception ex)
{
DialogService.Alert("Login did not succeed. Please try again");
}
finally
{
DialogService.HideLoading();
}
}
private async void Save()
{
try
{
var username = await SetUsernameService.SetUsernameForUserAsync(User.UserId, Username);
User.Username = username;
SaveUserSecurityService.SaveUser(User);
// on success - pop to root and show the mainview as a modal
await Navigation.PushModalAsync(new MainPage());
await Navigation.PopToRootAsync(false);
}
catch (SaveUsernameException ex)
{
DialogService.Alert(ex.Message);
}
catch (Exception ex)
{
DialogService.Alert("An error occurred. Please try again");
}
}