<SymbolIcon
	Grid.Row = "1" Grid.Column = "1"
	Margin = "10"
	Symbol = "Contact"/>
<TextBox
	x:Name = "txtUsername"
	Grid.Row = "1" Grid.Column = "2"
	Witdh = "200"
	VerticalAlignment = "Center"
	PlaceholderText = "Username"/>
<SymbolIcon
	Grid.Row = "2" Grid.Coloumn = "1"
	Margin = "10"
	Symbol = "Permissions"/>
<PasswordBox
	x:Name = "txtPassword"
	Grid.Row = "2" Grid.Column = "2"
	Width = "200"
	VerticalAlignment = "Center"
	PlaceholderText = "Password"/>


if(string.IsNullOrWhiteSpace(txtUsername.Text)
 ||string.IsNullOrWhiteSpace(txtPassword.Password)||
 string.IsNullOrWhiteSpace(txtConfirmPassword.Password)){
 	ContentDialod contentDialod = new ContentDialog{
 		Title = "Information",
 		Content = "Please fill all field",
 		PrimaryButtonText = "OK"
 	};
 	await contentDialog.ShowAsync();
 }else if (!txtPassword.Password.Equals(txtConfirmPassword.Password)){
 	ContentDialog contentDialog = new ContentDialog{
 		Title = "Information",
 		Content = "Password doesn't match",
 		PrimaryButtonText = "OK"
 	};
 	await contentDialog.ShowAsync();
 }else
 {
 	var vault = new Windows.Security.Credentials.PasswordVault();
 	try{
 		var retreive = vault.Retreive("Week 10", txtUsername.Text);
 		ConcnteDialog contentDialog = new ContentDialog{
 			Title = "Information",
 			Content = "Username already exists",
 			PrimaryButtonText = "OK"
 		};
 		await contentDialog.ShowAsync();
 	}catch(Exception ex){
 		vault.Add(new Windows.Security.Credentials.PasswordCredential("Week 10", txtUsername.Text, txtPassword.Password));
 		await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
 		()=>{
 			Windows.Current.Close();
 		})
 	}
 }

 private async void btnRegister_Click(object sender,
 RoutedEventArgs e){
 CoreApplicationView newView = CoreApplication.CreateNewView();
 int newViewId = 0;
 await newView.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, ()=>{
 	var frame = new Frame();
 	frame.Navigation(typeof(RegisterPage));
 	Window.Current.Content= frame;
 	Window.Current.Activate();
 	newViewId = ApplicationView.GetForCurrentView().id;

 });
 	bool success = await ApplicationViewSwitcher. TryShowAsStandaloneAsync(newViewId);
 }

private async void btnLogin_Click(object sender, RoutedEventArgs e){
	string username = txtUsername.Text.ToString();
	string password = txtPassword.Password.ToString();
	var vault = new Windows.Security.Credentials.PasswordVault();
	ContentDialog contentDoalog = new ContentDialog{

	}
}

private async void btnLogin_Click(object sender, RoutedEventArgs e){
	string username = txtUsername.Text.ToString();
	string password = txtPassword.Password.ToString();
	var vault = new Windows.Security.Credentials.PasswordValut();
	ContentDiallog contentDialog = new ContentDialog{
		Content = "Username / Password invalid",
		PrimaryButtonText = "OK"
	};
	try{
		result = vault.Retrieve("Week 10", username);
		result.RetrievePassword();
		if(result.Password.ToString().Equals(password)){
		this.Frame.Navigate(typeof(MainMenu), username);
		}else {
			await contentDialog.ShowAsync();
		}
	}catch (Exeption ex){
		await contentDialog.ShowAsync();
	}
}

protected override void OnNavigatedTo(NavigationEventArgs e){
	base.OnNavigated(e);
	username = e.Paremeter as string;
}

Windows.Storage.ApplicationDataContainer localSettings = windows.Strorage.ApplicationData.Current.LocalSettings;
if(!localSettings.Values.ContainsKey("theme"))
{
	localSettings.Values["theme"] = "Light";
}

 protected override void OnNavigatedFrom(NavigationEventArgs e){
 	base.OnNavigatatedFrom(e);
 	AdjustTheme();
 }

 public void AdjustTheme(){
 	if(localSettings.Values["theme"].Equals("Dark"))
 		RequestedTheme = ElementTheme.Dark;
 	else
 		RequestedTheme = ElementTheme.Light;
 }

private void toggleColor_Click(object sender, RoutedEventArgs e){
	if(toggleColor.IsChcked == true){
		RequestedTheme = ElementTheme.Dark;
		localSettings.Values["theme"] = "Dark";
	}else {
		RequestTheme = ElementTheme.Light;
		localSettings.Values["theme"] = "Light";
	}
}

private void btnLogout_Click(object sender, RoutedEventArgs e){
	if(this.Frame != null && this.Frame.CanGoBack){
		this.Frame.GoBack();
	}
}

private StorageFolder localFolder = ApplicationData.Current.LocalFolder;
private StorageFolder userFolder;

try{
	userFolder = await localFolder.GetFolderAsync(username);

}catch(Exeption ex){
	userFolder = await localFolder.CreateAsync(username);
}
getFolderContent();

private async void getFolderContent(){

	IReadOnlyList<StorageFile> fileList = await userfolder.GetFileAsync();
	lvwTextFile.Items.Clear();
	foreach (Storage file in fileList){
		lvwTextFile.Items.Add(file.DisplayName);
	}
	Debug.WriteLine("Retreive done");
}

private async void btnOpenFile_Click(object sender, RoutedEventArgs e){
	fileOpenPicker openPicker = new FileOpenPicker();
	openPicker.ViewMode = PickerViewMode.Thumbnail;
	openpicker.SuggestedStartLocation = PickerLocationId.DocumentsLibrary;
	openPicker.FileTypeFilter.Add(".txt");

	StorageFile file = await openPicker.PickSingleFileAsync();
	if(file != null){
		StorageFile historyFile = await userFolder.CreateFileAsync(file.Name, CreationCollisionOption.ReplaceExisting);
		await FileIO.WriteTextAsync(historyFile, file.Path);

		StorageApplicationPermissions.FutureAccessList.AddorReplace(historyFile.name, file);

		string text = await FileIO.ReadTextAsync(file);
		txtContentText.Document.SetText(Windows.UI.Text.TextSetOptions.None, text);
		textContentText.IsEnabled = true;
	}
	getFolderContent();
}

private async void lvwTextFile_SelectionChanged(object sender, SelectionChangedEventArgs e){
	var selected = lvwTextFile.SelectedItem;
	if(selected != null){
		StorageFile selectedFile = await userFolder.GetFileAsync(selected + ".txt");
		StorageFile realFile = await StorageApplicationPermissions.FutureAccesList.GetFileAsync(SelectedFile.Name);
		string text = await FileIO.ReadTextAsync(realFile);
		txtContentText.Document.SetText(Windows.UI.Text.TextSetOptions.One, Text);
		txtContentText.IsEnabled = true;
			}
}