private Dictionary <ILineItem, List <ValidationIssue> > ValidatePurchaseOrder(IPurchaseOrder purchaseOrder)
{
var validationIssues = new Dictionary <ILineItem, List <ValidationIssue> >();
purchaseOrder.UpdatePlacedPriceOrRemoveLineItems(_customerContext.GetContactById(purchaseOrder.CustomerId),
(item, issue) => validationIssues.AddValidationIssues(item, issue), _placedPriceProcessor);
purchaseOrder.UpdateInventoryOrRemoveLineItems((item, issue) =>
validationIssues.AddValidationIssues(item, issue));
purchaseOrder.AdjustInventoryOrRemoveLineItems((item, issue) =>
validationIssues.AddValidationIssues(item, issue));
purchaseOrder.ApplyDiscounts(_promotionEngine, new PromotionEngineSettings());
return(validationIssues);
}
