private async void SaveOrderCommandExecute(object obj)
{
Logger.For(this).Info("Saving order");
IsBusy = true;
var existingOrderItems = Order.OrderItems;
var newOrderItems = OrderItems.Where(checkableItem => checkableItem.IsChecked).Select(checkableItem => checkableItem.Item);
var addedOrderItems = newOrderItems.Where(orderItem => !existingOrderItems.Any(existingOrderItem => existingOrderItem.Id == orderItem.Id)).ToList();
var deletedOrderItems = existingOrderItems.Where(existingOrderItem => !newOrderItems.Any(orderItem => orderItem.Id == existingOrderItem.Id)).ToList();
var updatedOrderItems = existingOrderItems.Where(existingOrderItem => !deletedOrderItems.Any(deletedOrderItem => deletedOrderItem.Id == existingOrderItem.Id)).ToList();
try
{
Logger.For(this).Info("Adding new order items");
foreach (OrderItemDto orderItem in addedOrderItems)
{
orderItem.OrderId = Order.Id;
var createdOrderItem = await orderItemService.CreateAsync(orderItem);
Order.OrderItems.Add(createdOrderItem);
}
Logger.For(this).Info("Removing older order items");
foreach (OrderItemDto orderItem in deletedOrderItems)
{
await orderItemService.DeleteAsync(orderItem.Id);
Order.OrderItems.Remove(orderItem);
}
Logger.For(this).Info("Updating existing order items");
foreach (OrderItemDto orderItem in updatedOrderItems)
{
await orderItemService.UpdateAsync(orderItem);
var tempOrderItem = Order.OrderItems.Find(o => o.Id == orderItem.Id);
Order.OrderItems.Remove(tempOrderItem);
Order.OrderItems.Add(orderItem);
}
IsBusy = false;
Logger.For(this).Info("Order is saved");
Messenger.Default.Send <WindowMessege, bool?>(WindowMessege.CloseEditOrderWindow, true);
Logger.For(this).Info("Close EditOrderWindow");
}
catch (NoInternetConnectionException ex)
{
Logger.For(this).Error(ex.Message, ex);
messageService.ShowMessage(ex.Message, "Error", System.Windows.MessageBoxButton.OK, System.Windows.MessageBoxImage.Error);
}
catch (HttpRequestException ex)
{
Logger.For(this).Error(ex.Message, ex);
messageService.ShowMessage(ex.Message, "Error", System.Windows.MessageBoxButton.OK, System.Windows.MessageBoxImage.Error);
}
IsBusy = false;
}