public OrderTotal CalculateTotal(Guid workshopId, ICollection <AnchorQuantity> seatItems)
{
using (var scope = factory.CreateReadOnly())
{
var seatTypes = workshopDao.GetPublishedAnchorTypes(workshopId);
var lineItems = new List <OrderLine>();
foreach (var item in seatItems)
{
var seatType = seatTypes.FirstOrDefault(x => x.ID == item.AnchorType);
if (seatType == null)
{
throw new InvalidDataException(string.Format(CultureInfo.InvariantCulture, "Invalid anchor type ID '{0}' for workshop with ID '{1}'", item.AnchorType, workshopId));
}
lineItems.Add(new SeatOrderLine {
SeatType = item.AnchorType, Quantity = item.Quantity, UnitPrice = seatType.Price, LineTotal = Math.Round(seatType.Price * item.Quantity, 2)
});
}
return(new OrderTotal
{
Total = lineItems.Sum(x => x.LineTotal),
Lines = lineItems
});
}
}
