public decimal?ApplyDiscount(CalculatorArgs args)
{
return(args.Lines.Where(x => x.IsStock).Sum(x => x.Cost) * args.Discount);
}
public decimal?ApplyDiscount(CalculatorArgs args)
{
return(!string.IsNullOrEmpty(args.Brand)
? args.Lines.Where(x => x.Name == args.Brand).Sum(x => x.Cost) * args.Discount
: args.Lines.Sum(x => x.Cost));
}
public decimal?ApplyDiscount(CalculatorArgs args)
{
var totalCost = args.Lines.Sum(x => x.Cost);
return(totalCost >= 3000 ? totalCost - args.DiscountSum : totalCost);
}
