public RestaurantMenuItemModifierPage(RestaurantVM restaurantVM, MenuItemViewModel menuItemView, MenuGroupModifierItem menuGroupModifierItem = null)
{
RestaurantVM = restaurantVM;
MenuItemView = menuItemView;
MenuItemVM = menuItemView.RestaurantMenuItem.MenuItemVM;
MenuGroupModifierItem = menuGroupModifierItem;
Price = MenuItemVM.MenuItem.BasePrice;
InitializeComponent();
NavigationPage.SetBackButtonTitle(this, AppResources.Back);
//this.NumberEntryViewQuantity.Entry.Text = "1";
this.Quantity = 1;
//this.ToolbarItems.Add(new ToolbarItem()
//{
// Icon = "check_white.png",
// Command = new Command(() =>
// {
// SaveOrAddToCart();
// }),
//});
if (MenuGroupModifierItem != null)
{
//this.NumberEntryViewQuantity.Entry.Text = Convert.ToString(MenuGroupModifierItem.Quantity);
this.Quantity = MenuGroupModifierItem.Quantity;
Feedback = MenuGroupModifierItem.Comment;
ButtonAddToCart.Text = AppResources.Save;
}
ButtonAddToCart.Clicked += (sender, e) =>
{
SaveOrAddToCart();
};
//ButtonFeedbackDone.Clicked += (sender, e) =>
//{
// EditorFeedback.Unfocus();
// GridFeedback.IsVisible = false;
//};
//this.NumberEntryViewQuantity.Entry.TextChanged += (sender, e) =>
//{
// Device.BeginInvokeOnMainThread(() =>
// {
// Price = UpdatePrice(this.MenuItemVM, this.MenuItemModifiers, this.Quantity);
// });
//};
ListViewModifiers.ItemSelected += (sender, e) =>
{
if (e.SelectedItem != null)
{
ListViewModifiers.SelectedItem = null;
ModifierItemViewModel modifierItemView = e.SelectedItem as ModifierItemViewModel;
if (modifierItemView.IsItem && modifierItemView.IsEnabled)
{
if (modifierItemView.MenuModifierVM.SubMenuModifiers.Count > 0)
{
RestaurantMenuItemSubModifierPage restaurantMenuItemSubModifierPage = new RestaurantMenuItemSubModifierPage(this, modifierItemView);
Utils.PushAsync(Navigation, restaurantMenuItemSubModifierPage, true);
}
else
{
modifierItemView.IsSelected = !modifierItemView.IsSelected;
modifierItemView.Save();
}
}
}
};
}
public decimal?UpdatePriceUnSave(ModifierItemViewModel modifierItemView)
{
decimal?price = null;
if (MenuItemVM.MenuItem.BasePrice.HasValue)
{
price = MenuItemVM.MenuItem.BasePrice;
}
var menuModifierOverride = ModifierItemViews.FirstOrDefault(t => !t.MenuModifierVM.Additive && (t.IsSelected || modifierItemView == t));
if (menuModifierOverride != null)
{
if (menuModifierOverride.MenuModifierVM.MenuModifier.AllowMultipleInstances)
{
var quantity = menuModifierOverride.Quantity;
if (quantity > 0 && menuModifierOverride.MenuModifierVM.MenuModifier.ApplyByDefault)
{
quantity--;
}
price = (menuModifierOverride.MenuModifierVM.ModifierPrice * quantity);
}
else
{
price = menuModifierOverride.MenuModifierVM.ModifierPrice;
}
foreach (var subMenuModifiers in menuModifierOverride.SubMenuModifierItemViews)
{
if (subMenuModifiers.IsSelected)
{
if (subMenuModifiers.SubMenuModifierVM.MenuModifier.AllowMultipleInstances)
{
if (subMenuModifiers.SubMenuModifierVM.MenuModifier.Price.HasValue)
{
if (!price.HasValue)
{
price = 0;
}
var quantity = subMenuModifiers.Quantity;
if (quantity > 0 && subMenuModifiers.SubMenuModifierVM.MenuModifier.ApplyByDefault)
{
quantity--;
}
price += (subMenuModifiers.SubMenuModifierVM.MenuModifier.Price * quantity);
}
}
else
{
if (subMenuModifiers.SubMenuModifierVM.MenuModifier.Price.HasValue)
{
if (!price.HasValue)
{
price = 0;
}
price += subMenuModifiers.SubMenuModifierVM.MenuModifier.Price;
}
}
}
}
}
var menuModifiersAdditive = ModifierItemViews.Where(t => t.MenuModifierVM.Additive && (t.IsSelected || modifierItemView == t));
foreach (var menuModifierAdditive in menuModifiersAdditive)
{
if (menuModifierAdditive.MenuModifierVM.MenuModifier.Price.HasValue)
{
if (menuModifierAdditive.MenuModifierVM.MenuModifier.AllowMultipleInstances)
{
if (menuModifierAdditive.MenuModifierVM.ModifierPrice.HasValue)
{
if (!price.HasValue)
{
price = 0;
}
var quantity = menuModifierAdditive.Quantity;
if (quantity > 0 && menuModifierAdditive.MenuModifierVM.MenuModifier.ApplyByDefault)
{
quantity--;
}
price += (menuModifierAdditive.MenuModifierVM.ModifierPrice * quantity);
}
}
else
{
if (menuModifierAdditive.MenuModifierVM.ModifierPrice.HasValue)
{
if (!price.HasValue)
{
price = 0;
}
price += menuModifierAdditive.MenuModifierVM.ModifierPrice;
}
}
}
foreach (var subMenuModifiers in menuModifierAdditive.SubMenuModifierItemViews)
{
if (subMenuModifiers.IsSelected)
{
if (subMenuModifiers.SubMenuModifierVM.MenuModifier.AllowMultipleInstances)
{
if (subMenuModifiers.SubMenuModifierVM.MenuModifier.Price.HasValue)
{
if (!price.HasValue)
{
price = 0;
}
var quantity = subMenuModifiers.Quantity;
if (quantity > 0 && subMenuModifiers.SubMenuModifierVM.MenuModifier.ApplyByDefault)
{
quantity--;
}
price += (subMenuModifiers.SubMenuModifierVM.MenuModifier.Price * quantity);
}
}
else
{
if (subMenuModifiers.SubMenuModifierVM.MenuModifier.Price.HasValue)
{
if (!price.HasValue)
{
price = 0;
}
price += subMenuModifiers.SubMenuModifierVM.MenuModifier.Price;
}
}
}
}
}
if (!price.HasValue)
{
if (!MenuItemVM.MenuItem.BasePrice.HasValue && ModifierItemViews.LongCount() > 0)
{
price = ModifierItemViews.Min(s => s.MenuModifierVM.ModifierPrice);
}
}
if (price.HasValue)
{
price = price * this.Quantity;
}
return(price);
}
public RestaurantMenuItemSubModifierPage(RestaurantMenuItemModifierPage restaurantMenuItemModifierPage, ModifierItemViewModel modifierItemView)
{
ModifierItemView = modifierItemView;
InitializeComponent();
NavigationPage.SetBackButtonTitle(this, AppResources.Back);
var subMenuModifierItemViewsSource = new List <SubMenuModifierItemViewModel>();
foreach (var subMenuModifierGroup in modifierItemView.MenuModifierVM.SubMenuModifierGroups)
{
subMenuModifierItemViewsSource.Add(new SubMenuModifierItemViewModel(modifierItemView, subMenuModifierGroup));
var subMenuModifierItemViews = modifierItemView.MenuModifierVM.SubMenuModifiers
.Where((t) => subMenuModifierGroup.ModifierIDs.Contains(t.MenuModifier.ID))
.Select(t => new SubMenuModifierItemViewModel(modifierItemView, subMenuModifierGroup, t)).ToList();
subMenuModifierItemViewsSource.AddRange(subMenuModifierItemViews);
SubMenuModifierItemViews.AddRange(subMenuModifierItemViews);
}
ModifierItemView.SubMenuModifierItemViews = SubMenuModifierItemViews;
foreach (var subMenuModifierItemView in SubMenuModifierItemViews)
{
var subMenuModifierItemViews = SubMenuModifierItemViews
.Where((t) => subMenuModifierItemView.SubMenuModifierGroup.ModifierIDs.Contains(t.SubMenuModifierVM.MenuModifier.ID))
.ToList();
subMenuModifierItemView.PropertyChanged += (sender, e) =>
{
if (e.PropertyName == nameof(subMenuModifierItemView.Quantity))
{
Price = restaurantMenuItemModifierPage.UpdatePriceUnSave(ModifierItemView);
foreach (var modifierItemViewGroup in subMenuModifierItemViews)
{
modifierItemViewGroup.RefreshEnabled();
}
Task.Run(() =>
{
new System.Threading.ManualResetEvent(false).WaitOne(100);
}).ContinueWith((s) =>
{
var itemsSelected = subMenuModifierItemViews.Where(t => t.IsSelected).ToList();
var countSelected = itemsSelected.Sum(t => t.Quantity);
var maxApplied = subMenuModifierItemView.SubMenuModifierGroup.MaxApplied;
if (maxApplied < countSelected && subMenuModifierItemView.Quantity != subMenuModifierItemView.QuantityPrevious)
{
subMenuModifierItemView.Quantity = subMenuModifierItemView.QuantityPrevious;
}
}, TaskScheduler.FromCurrentSynchronizationContext());
}
if (!IsModifierItemViewChanging && e.PropertyName == nameof(subMenuModifierItemView.IsSelected))
{
IsModifierItemViewChanging = true;
var minApplied = subMenuModifierItemView.SubMenuModifierGroup.MinApplied;
var maxApplied = subMenuModifierItemView.SubMenuModifierGroup.MaxApplied;
if (minApplied == 1 && subMenuModifierItemViews.Where(t => t.IsSelected).LongCount() == 0)
{
subMenuModifierItemView.IsSelected = (true);
}
if (subMenuModifierItemView.IsSelected)
{
if (maxApplied == 1)
{
foreach (var modifierItemViewGroup in subMenuModifierItemViews)
{
modifierItemViewGroup.IsSelected = (modifierItemViewGroup == subMenuModifierItemView);
}
}
}
foreach (var modifierItemViewGroup in subMenuModifierItemViews)
{
modifierItemViewGroup.RefreshEnabled();
}
Price = restaurantMenuItemModifierPage.UpdatePriceUnSave(ModifierItemView);
IsModifierItemViewChanging = false;
}
};
}
ListViewSubModifiers.ItemsSource = subMenuModifierItemViewsSource;
ListViewSubModifiers.ItemTapped += (sender, e) =>
{
if (e.Item != null)
{
ListViewSubModifiers.SelectedItem = null;
SubMenuModifierItemViewModel subMenuModifierItemView = e.Item as SubMenuModifierItemViewModel;
if (subMenuModifierItemView.IsEnabled)
{
subMenuModifierItemView.IsSelected = !subMenuModifierItemView.IsSelected;
}
}
};
Price = restaurantMenuItemModifierPage.UpdatePriceUnSave(ModifierItemView);
ButtonDone.Clicked += async(sender, e) =>
{
string error = string.Empty;
foreach (var subMenuModifierGroup in ModifierItemView.MenuModifierVM.SubMenuModifierGroups)
{
var minApplied = subMenuModifierGroup.MinApplied;
var itemsSelected = SubMenuModifierItemViews
.Where((t) => subMenuModifierGroup.ModifierIDs.Contains(t.SubMenuModifierVM.MenuModifier.ID))
.Where(s => s.IsSelected).ToList();
var countApplied = itemsSelected.Sum(t => t.Quantity);
if (countApplied < minApplied)
{
if (!string.IsNullOrEmpty(error))
{
error += "\n";
}
error += string.Format(AppResources.ChooseRequired, minApplied + " " + subMenuModifierGroup.DisplayName + " -");
}
}
if (string.IsNullOrEmpty(error))
{
ModifierItemView.IsSelected = true;
ModifierItemView.Save();
await Navigation.PopAsync().ConfigureAwait(false);
}
else
{
Device.BeginInvokeOnMainThread(async() =>
{
var notificator = DependencyService.Get <IToastNotificator>();
await notificator.Notify(ToastNotificationType.Error, AppResources.Error, error, TimeSpan.FromSeconds(5));
});
}
};
}
