public bool Evaluate(IRuleExecutionContext context)
{
//itemId = ID to check in purchase order history
//itemInCartItemId = Item in cart to check in order history to give discount
//If customer has purchased itemId and has not purchased itemInCartItemId this rule returns true
string itemId = this.TargetItemId.Yield(context);
string itemInCartItemId = this.CurrentItemInCartId.Yield(context);
bool valid = false;
CommerceContext commerceContext = context.Fact <CommerceContext>((string)null);
if (commerceContext == null || !commerceContext.CurrentUserIsRegistered() || string.IsNullOrEmpty(itemId))
{
return(false);
}
//UPDATED TO USE CURRENTSHOPPERID VS EMPTY CURRENTCUSTOMERID
string listName = string.Format(commerceContext.GetPolicy <KnownOrderListsPolicy>().CustomerOrders, (object)commerceContext.CurrentShopperId());
CommerceList <Order> result = Task.Run <CommerceList <Order> >((Func <Task <CommerceList <Order> > >)(() => this._getEntitFindEntitiesInListCommand.Process <Order>(commerceContext, listName, 0, int.MaxValue))).Result;
List <Order> source = result != null?result.Items.ToList <Order>() : (List <Order>)null;
if (source == null || !source.Any <Order>())
{
return(false);
}
if (!this.MatchesAnItem(context))
{
if (
source.Any <Order>(
(Func <Order, bool>)(
o => o.Lines.Any <CartLineComponent>(
(Func <CartLineComponent, bool>)(
l => l.ItemId.StartsWith(itemId, StringComparison.OrdinalIgnoreCase)
)))))
{
valid = source.Where <Order>(
(Func <Order, bool>)(
o => o.Lines.Where <CartLineComponent>(
(Func <CartLineComponent, bool>)(
l => l.ItemId.Contains(itemInCartItemId)
)).FirstOrDefault() != null)).FirstOrDefault() == null;
return(valid);
}
}
if (source.Any <Order>(
(Func <Order, bool>)(
o => o.Lines.Any <CartLineComponent>(
(Func <CartLineComponent, bool>)(
l => l.ItemId.Equals(itemId)
)))))
{
valid = source.Where <Order>(
(Func <Order, bool>)(
o => o.Lines.Where <CartLineComponent>(
(Func <CartLineComponent, bool>)(
l => !l.ItemId.Equals(itemInCartItemId, StringComparison.OrdinalIgnoreCase)
)).FirstOrDefault() == null)).FirstOrDefault() == null;
return(valid);
}
return(valid);
}
public async Task <List <Order> > Resolve(CommerceContext commerceContext)
{
if (commerceContext == null || !commerceContext.CurrentUserIsRegistered())
{
return(null);
}
string listName = string.Format(CultureInfo.InvariantCulture,
commerceContext.GetPolicy <KnownOrderListsPolicy>().CustomerOrders,
commerceContext.CurrentCustomerId());
CommerceList <Order> result =
await findEntitiesInListCommand.Process <Order>(commerceContext, listName, 0, int.MaxValue);
return(result?.Items);
}