protected async void OnNextExecute()
{
if (!CanGoNext)
{
return;
}
CanGoNext = false;
if (!await UserViewModel.ValidateAndSaveInput(Items.Where(x => x is IOrderFieldsGroupVM).Select(x => x as IOrderFieldsGroupVM)) ||
!await DeliveryViewModel.ValidateDelivery(Items.Where(x => x is IDeliveryTypeItemVM).Select(x => x as IDeliveryTypeItemVM)))
{
CanGoNext = true;
return;
}
Loading = true;
NextCommand.RaiseCanExecuteChanged();
if (_orderProcessingToken == null)
{
_orderProcessingToken = Messenger.Subscribe <OrderProcessingMessage>(DeliveryViewModel.OrderProcessingChanged);
}
if (_orderPaidToken == null)
{
_orderPaidToken = Messenger.Subscribe <OrderPaidMessage>(DeliveryViewModel.OnOrderPaidMessageRecieved);
}
if (_paymentSelectedToken == null)
{
_paymentSelectedToken = Messenger.Subscribe <PaymentSelectedMessage>(DeliveryViewModel.OnPaymentSelectedMessage);
}
var selectedDelivery = Items?.FirstOrDefault(x => x is IDeliveryTypeItemVM deliveryItem && deliveryItem.IsSelected) as IDeliveryTypeItemVM;
var isNeedToSelectPayment = await OrderVmService.IsPaymentNecessary(selectedDelivery?.Id);
if (isNeedToSelectPayment)
{
NavigationVmService.NavigateToPayment(new PaymentBundle(selectedDelivery?.Id, NavigationType.PresentModal));
}
else
{
await DeliveryViewModel.CreateOrder();
}
CanGoNext = true;
Loading = false;
}
