/// <summary>
/// When the customer has provided enough funds and change can be made, the order
/// is finalized, and a new order is started.
/// </summary>
/// <param name="sender">The button that was clicked.</param>
/// <param name="e">The event arguments.</param>
private void FinalizeOrder(object sender, RoutedEventArgs e)
{
if (DataContext is RegisterViewModel rvm)
{
if (OrderComponent.DataContext is Order order)
{
order.PrintReciept(false, rvm.ChangeOwed);
}
rvm.FinalizeOrder();
Cleanup();
OrderComponent.CollapseButtons(false);
OrderComponent.ChangeScreen(new MenuSelectionScreen());
OrderComponent.DataContext = new Order();
}
}
/// <summary>
/// Creates a new custom customizer component with the given <typeparamref name="TOrderItem"/>
/// and <typeparamref name="TCustomizationOptions"/>, and it
/// swaps the order screen to show this new customization component with the <paramref name="name"/>
/// as the title.
/// </summary>
/// <typeparam name="TOrderItem">The type of item to create.</typeparam>
/// <typeparam name="TCustomizationOptions">The customization page to use to create it.</typeparam>
/// <param name="name">The name of the menu item.</param>
private void ChangeToItem <TOrderItem, TCustomizationOptions>(string name) where TOrderItem : IOrderItem, new() where TCustomizationOptions : CustomizationScreen, new()
{
if (DataContext is Combo combo)
{
ItemModification modifier = new ItemModification();
modifier.customizeItemLabel.Text = "Customize " + name;
TCustomizationOptions customizationOptions = new TCustomizationOptions();
TOrderItem item = new TOrderItem();
customizationOptions.DataContext = item;
modifier.customizationContainer.Child = customizationOptions;
modifier.ReturnScreen = ReturnScreen;
if (item is Entree entree)
{
combo.Entree = entree;
}
else if (item is Drink drink)
{
combo.Drink = drink;
}
else if (item is Side side)
{
combo.Side = side;
}
OrderComponent.ChangeScreen(modifier);
}
else if (OrderComponent.DataContext is Order order)
{
ItemCustomization customizer = new ItemCustomization();
customizer.customizeItemLabel.Text = "Customize " + name;
TCustomizationOptions customizationOptions = new TCustomizationOptions();
TOrderItem item = new TOrderItem();
customizationOptions.DataContext = item;
customizer.customizationContainer.Child = customizationOptions;
OrderComponent.ChangeScreen(customizer);
order.Add(item);
}
}
/// <summary>
/// Cancels the sale but does not cancel the order. In effect, it just returns
/// the POS back to the selection screen while keeping the same order.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void CancelSale(object sender, RoutedEventArgs e)
{
OrderComponent.CollapseButtons(false);
OrderComponent.ChangeScreen(new MenuSelectionScreen());
Cleanup();
}
private void CancelClicked(object sender, RoutedEventArgs e)
{
OrderComponent.ChangeScreen(ReturnScreen);
}