public OrderViewModel()
{
Title = "Bán hàng";
// commands
SelectedCategory = ListCategory[0];
CurrentOrder = new Order(this);
LoadDrinkByCategory = new RelayCommand <Category>((category) => { return(category != SelectedCategory); }, (category) =>
{
SelectedCategory = category;
});
AddDrink = new RelayCommand <Drink>((drink) => { return(true); }, (drink) =>
{
OrderItem ItemOfCurrentDrink = DrinkService.FindDrink(CurrentOrder, drink);
// only increase amount if item already exist and not having topping or option yet
// TODO: refactor
if (ItemOfCurrentDrink != null && !ItemOfCurrentDrink.HasToppings() /* && !ItemOfCurrentDrink.HasOptions()*/)
{
OrderService.SetItemAmount(CurrentOrder, ItemOfCurrentDrink, ItemOfCurrentDrink.Number + 1);
return;
}
OrderService.AddItem(CurrentOrder, new OrderItem(drink));
});
ToggleToppingForDrink = new RelayCommand <Topping>((drink) => { return(true); }, (drink) =>
{
if (drink.Checked)
{
OrderService.AddTopping(CurrentOrder, drink, SelectedOrderItem);
}
else
{
OrderService.RemoveTopping(CurrentOrder, drink, SelectedOrderItem);
}
});
ToggleOptionForDrink = new RelayCommand <Option>((drink) => { return(true); }, (drink) =>
{
//MessageBox.Show(drink.Item.ID);
//OrderService.SelectOption(CurrentOrder, drink, SelectedOrderItem);
});
IncreaseAmount = new RelayCommand <OrderItem>((drink) => { return(true); }, (OrderItem) =>
{
OrderService.SetItemAmount(CurrentOrder, OrderItem, OrderItem.Number + 1);
});
DecreaseAmount = new RelayCommand <OrderItem>((drink) => { return(drink.Number > 1); }, (OrderItem) =>
{
OrderService.SetItemAmount(CurrentOrder, OrderItem, OrderItem.Number - 1);
});
RemoveDrink = new RelayCommand <OrderItem>((drink) => { return(true); }, (orderitem) =>
{
OrderService.RemoveItem(CurrentOrder, orderitem);
});
ClearOrder = new RelayCommand <OrderItem>((drink) => { return(!OrderService.IsEmpty(CurrentOrder)); }, (orderitem) =>
{
OrderService.RemoveAllItems(CurrentOrder);
});
CheckoutOrder = new RelayCommand <OrderItem>((drink) => { return(!OrderService.IsEmpty(CurrentOrder)); }, (orderitem) =>
{
OrderService.AddOrder(CurrentOrder);
CurrentOrder.OnPropertyChanged(null);
CurrentOrder = new Order();
});
ShowAddCouponDialog = new RelayCommand <object>((p) => { return(!OrderService.IsEmpty(CurrentOrder)); }, (p) =>
{
IsAddCouponDialogOpen = true;
});
HideAddCouponDialog = new RelayCommand <object>((p) => { return(true); }, (p) =>
{
OrderService.RemoveCoupon(CurrentOrder);
IsAddCouponDialogOpen = false;
});
AddCoupon = new RelayCommand <object>((p) => { return(!OrderService.HasCoupon(CurrentOrder)); }, (p) =>
{
if (!OrderService.AddCoupon(CurrentOrder, CouponCode))
{
MessageBox.Show("Mã không hợp lệ");
return;
}
IsAddCouponDialogOpen = false;
});
ToggleOptionView = new RelayCommand <OrderItem>((p) => { return(true); }, (p) =>
{
//if (p == SelectedOrderItem)
//{
// MessageBox.Show("Toggle" + SelectedOrderItem.Item.Name + " - " + p.Item.Name);
// OptionSideBar = (OptionSideBar == 0) ? OptionSideBarWidth : 0;
//}
});
}