private void UpdatePrice()
{
SubtotalPrice = (float)Math.Round(SelectedSize.SizePrice * Qty + SelectedTopping.Aggregate(
0f, (total, next) => total + PizzaInfo.Topping.Where(d => d.ToppingId == next).FirstOrDefault().ToppingPrice
) * Qty, 2);
TaxPrice = (float)Math.Round(SubtotalPrice * 0.13, 2);
TotalPrice = (float)Math.Round(SubtotalPrice + TaxPrice, 2);
}
private async Task AddItem()
{
UpdatePrice();
var items = StateContainer.Items;
PizzaItem item = new PizzaItem
{
ItemId = new Guid(),
Qty = Qty,
SizeId = SelectedSize.SizeId,
TypeId = PizzaInfo.Type.Where(o => o.TypeName == PizzaName).FirstOrDefault().TypeId,
ToppingId = SelectedTopping.ToArray(),
Subtotal = SubtotalPrice,
Tax = TaxPrice,
Total = TotalPrice
};
items.Add(item);
StateContainer.SetItems(items);
}
