public OrderEditorViewModel()
{
OrderItems = new ReactiveList <OrderItem>();
Save = ReactiveCommand.Create <int>(() =>
{
var result = SaveImpl();
return(result);
}, this.WhenAnyValue(p => p.EditingItem.IsClosed).Select(p => p == false));
Save.ThrownExceptions.Subscribe(async ex => await Interactions.ShowError(ex.Message));
CarSelectorViewModel = new CarSelectorViewModel();
CarSelectorViewModel.Select.Subscribe(car =>
{
SelectedCar = DbService.GetDataContext().GetTable <Car>()
.LoadWith(p => p.CarModel)
.FirstOrDefault(p => p.ID == car.ID);
});
SelectCar = ReactiveCommand.Create(() =>
{
CarSelectorViewModel.Init(SelectedCar?.ID ?? -1);
return(CarSelectorViewModel);
});
ClearCar = ReactiveCommand.Create(() =>
{
SelectedCar = null;
});
this.WhenAnyValue(p => p.SelectedCar)
.Subscribe(car =>
{
if (car != null)
{
SelectedClient = DbService.GetDataContext().GetTable <Client>().FirstOrDefault(p => p.ID == car.ClientID);
CarCaption = $"{car.FedCode}, {car.CarModel?.Caption}";
}
else
{
SelectedClient = null;
CarCaption = String.Empty;
}
});
ClientSelectorViewModel = new ClientSelectorViewModel();
ClientSelectorViewModel.Select.Subscribe(client =>
{
SelectedClient = DbService.GetDataContext().GetTable <Client>().FirstOrDefault(p => p.ID == client.ID);
});
SelectClient = ReactiveCommand.Create(() =>
{
ClientSelectorViewModel.Init(SelectedClient?.ID ?? -1);
return(ClientSelectorViewModel);
});
ClearClient = ReactiveCommand.Create(() =>
{
SelectedClient = null;
});
this.WhenAnyValue(p => p.SelectedClient)
.Subscribe(client =>
{
if (client != null)
{
SelectedDiscountlist = Discountlists.FirstOrDefault(p => p.ID == client.DiscountlistID);
ClientCaption = $"{client.Caption}, {client.Card}";
}
else
{
SelectedDiscountlist = null;
ClientCaption = String.Empty;
}
});
this.WhenAnyValue(p => p.SelectedPricelist)
.Subscribe(pricelist =>
{
if (pricelist == null)
{
PricelistItems = new List <PricelistItem>();
}
else
{
PricelistItems = DbService.GetDataContext().GetTable <PricelistItem>()
.LoadWith(p => p.Service)
.Where(p => p.PricelistID == pricelist.ID)
.Where(p => p.Service.EntityState == EntityStateEnum.Active)
.OrderBy(p => p.Service.Caption)
.ToList();
}
});
AddOrderItem = ReactiveCommand.Create(() =>
{
if (SelectedPricelistItem == null)
{
return;
}
var orderItem = OrderItems.FirstOrDefault(
p => p.OrderID == EditingItem.ID &&
p.ServiceID == SelectedPricelistItem.ServiceID &&
p.Price == SelectedPricelistItem.Price);
if (orderItem == null)
{
orderItem = new OrderItem()
{
OrderID = EditingItem.ID,
ServiceID = SelectedPricelistItem.ServiceID,
Service = DbService.GetDataContext().GetTable <Service>().FirstOrDefault(p => p.ID == SelectedPricelistItem.ServiceID),
Price = SelectedPricelistItem.Price.Value,
Quantity = 1,
LastPrice = 0
};
if (SelectedDiscountlist != null)
{
var discountlistItem = DbService.GetDataContext().GetTable <DiscountlistItem>()
.Where(p => p.DiscountlistID == SelectedDiscountlist.ID)
.FirstOrDefault(p => p.ServiceID == orderItem.ServiceID);
if (discountlistItem != null)
{
orderItem.Discount = discountlistItem.Discount.Value;
}
}
orderItem.CalcLastPrice();
OrderItems.Add(orderItem);
}
else
{
orderItem.Quantity++;
}
SelectedOrderItem = orderItem;
calcCost();
});
AddOrderItem.ThrownExceptions.Subscribe(async ex => await Interactions.ShowError(ex.Message));
RemoveOrderItem = ReactiveCommand.Create(() =>
{
if (SelectedOrderItem == null)
{
return;
}
if (SelectedOrderItem.Quantity > 1)
{
SelectedOrderItem.Quantity--;
}
else
{
OrderItems.Remove(SelectedOrderItem);
}
calcCost();
});
RemoveOrderItem.ThrownExceptions.Subscribe(async ex => await Interactions.ShowError(ex.Message));
DeleteOrderItem = ReactiveCommand.Create(() =>
{
if (SelectedOrderItem == null)
{
return;
}
OrderItems.Remove(SelectedOrderItem);
calcCost();
});
DeleteOrderItem.ThrownExceptions.Subscribe(async ex => await Interactions.ShowError(ex.Message));
ApplyDiscount = ReactiveCommand.Create(() =>
{
if (SelectedDiscountlist == null)
{
OrderItems.ForEach(orderItem =>
{
orderItem.Discount = 0;
orderItem.CalcLastPrice();
});
}
else
{
var discountlistItems = DbService.GetDataContext().GetTable <DiscountlistItem>()
.Where(p => p.DiscountlistID == SelectedDiscountlist.ID)
.ToList();
OrderItems.ForEach(orderItem =>
{
var discountlistItem = discountlistItems
.FirstOrDefault(q => q.ServiceID == orderItem.ServiceID);
if (discountlistItem != null)
{
orderItem.Discount = discountlistItem.Discount.Value;
}
else
{
orderItem.Discount = 0;
}
orderItem.CalcLastPrice();
});
}
calcCost();
});
ApplyDiscount.ThrownExceptions.Subscribe(async ex => await Interactions.ShowError(ex.Message));
}