/// <summary>Registers the new user.</summary>
/// <param name="username">The username.</param>
/// <param name="password">The password.</param>
/// <returns></returns>
internal async Task <bool> RegisterNewUser(string username, string password)
{
if (ValidateUserInput(username, password))
{
User newUser = new User()
{
UserName = username, Password = password
};
if (await usersDataAccess.AddUser(newUser))
{
return(true);
}
else
{
ToastCreator.ShowUserToast("Lost connection with database, can't add user");
return(false);
}
}
else
{
ToastCreator.ShowUserToast("Invalid username or password");
return(false);
}
}
private async void SimulationPage_Loaded(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
try
{
await ViewModel.LoadDecks().ConfigureAwait(true);
}
catch (JsonReaderException ex)
{
ToastCreator.ShowUserToast("No database connection, could not load decks");
}
}
private async void Register_OnClick(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
//Registration complete, navigate back to loginpage
if (await ViewModel.RegisterNewUser(UsernameBox.Text, PasswordBox.Password))
{
NavigationService.Navigate(typeof(LoginPage));
}
else
{
ToastCreator.ShowUserToast("ERROR: User could not be created");
}
}
private void DrawNewHand_OnClick(object sender, RoutedEventArgs e)
{
if (DeckComboBox.Items != null)
{
try
{
var currentDeck = DeckComboBox.Items[DeckComboBox.SelectedIndex] as Deck;
ViewModel.DrawNewHand(currentDeck, 7);
}
catch (ArgumentOutOfRangeException ex)
{
ToastCreator.ShowUserToast("No deck selected");
}
}
}
private async void MainPage_Loaded(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
try
{
await ViewModel.LoadCardsAsync().ConfigureAwait(true);
}
catch (HttpRequestException ex)
{
ToastCreator.ShowUserToast("No database connection, can't load cards");
}
catch (NullReferenceException ex)
{
ToastCreator.ShowUserToast("No database connection, can't find cards");
}
}
private async void LoadUserDecks(object sender, RoutedEventArgs e)
{
try
{
await ViewModel.GetUserDecks();
}
catch (HttpRequestException ex)
{
ToastCreator.ShowUserToast("No database connection, can't display user decks");
}
catch (JsonReaderException ex)
{
ToastCreator.ShowUserToast("No database connection, can't display user decks");
}
}
private async void DeckViewerPage_Loaded(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
try
{
await ViewModel.GetUserDecks().ConfigureAwait(true);
}
catch (HttpRequestException ex)
{
ToastCreator.ShowUserToast("Could not load decks");
}
catch (JsonReaderException ex)
{
ToastCreator.ShowUserToast("Could not read data from database");
}
}
/// <summary>Validates the user with the database</summary>
/// <param name="username">The username.</param>
/// <param name="password">The password.</param>
/// <returns></returns>
public async Task <User> ValidateUser(string username, string password)
{
if (string.IsNullOrEmpty(username) || string.IsNullOrEmpty(password))
{
ToastCreator.ShowUserToast("Input error: Either name or password is missing");
return(null);
}
var allUsers = await _usersDataAccess.GetUsersAsync().ConfigureAwait(true);
//If null, means database caught an exception.
if (allUsers == null)
{
ToastCreator.ShowUserToast("Database connection lost: Cannot validate user");
return(null);
}
var checkUser = (from x in allUsers
where x.UserName == username
select x).FirstOrDefault();
if (checkUser != null)
{
if (checkUser.Password == password)
{
return(checkUser);
}
else
{
ToastCreator.ShowUserToast("Input error: Wrong password inserted");
return(null);
}
}
else
{
ToastCreator.ShowUserToast("Input error: No username found");
return(null);
}
}
private async void ChangeUserPassword()
{
ChangePasswordDialog pwDialog = new ChangePasswordDialog();
await pwDialog.ShowAsync();
if (pwDialog.Content != null)
{
string pw = (string)pwDialog.Content;
_user.Password = pw;
if (await _usersDataAccess.ChangePassword(_user))
{
ToastCreator.ShowUserToast("Password changed!");
}
else
{
ToastCreator.ShowUserToast("No database connection, password was not changed");
}
}
}
