private void SetFormula(string value)
{
if (formula == value)
{
return;
}
formula = value;
values = null;
string stringValue;
switch (Type)
{
case PriceRule.ActionType.Stop:
case PriceRule.ActionType.Exit:
case PriceRule.ActionType.Message:
values = new object [] { PriceRule.GetStringValue(formula, ' ') };
break;
case PriceRule.ActionType.Email:
stringValue = PriceRule.GetStringValue(formula, ' ');
if (stringValue == null)
{
break;
}
int lastIndexOf = stringValue.LastIndexOf('|');
if (lastIndexOf < 0)
{
break;
}
values = new object [] { stringValue.Substring(lastIndexOf + 1), stringValue.Substring(0, lastIndexOf) };
break;
case PriceRule.ActionType.AddGood:
case PriceRule.ActionType.AddGlobalGood:
List <SaleDetail> details = GetDetailsForPromotionalItems <SaleDetail> (formula);
if (details != null)
{
values = details.Cast <object> ().ToArray();
}
break;
case PriceRule.ActionType.Price:
PriceGroup priceGroup;
string [] priceParts = GetPriceExpressionParts(formula, out priceGroup);
if (priceParts == null || priceParts.Length == 0)
{
break;
}
double price;
if (priceParts.Length > 1)
{
OperatorType operatorType;
switch (priceParts [1].ToLowerInvariant())
{
case "+":
case "plus":
operatorType = OperatorType.Plus;
break;
case "-":
case "minus":
operatorType = OperatorType.Minus;
break;
case "*":
operatorType = OperatorType.Multiply;
break;
case "/":
operatorType = OperatorType.Divide;
break;
default:
operatorType = OperatorType.Unknown;
break;
}
if (operatorType == OperatorType.Unknown)
{
break;
}
if (Double.TryParse(priceParts [2], NumberStyles.Any, CultureInfo.InvariantCulture, out price))
{
values = new object [] { priceGroup, operatorType, price }
}
;
}
else
if (Double.TryParse(priceParts [0], NumberStyles.Any, CultureInfo.InvariantCulture, out price))
{
values = new object [] { price }
}
;
break;
case PriceRule.ActionType.Discount:
values = new object [] { PriceRule.GetDoubleValue(formula) };
break;
case PriceRule.ActionType.ServiceCharge:
string [] itemWithPercent = formula.Split(';');
if (itemWithPercent.Length < 2)
{
break;
}
long?itemId = PriceRule.GetLongValue(itemWithPercent [0]);
if (itemId == null)
{
break;
}
Item item = Item.Cache.GetById(itemId.Value);
if (item == null)
{
break;
}
string s = PriceRule.GetStringValue(itemWithPercent [1]);
if (s == null)
{
break;
}
double result;
values = new [] { item,
Double.TryParse(s, NumberStyles.Any, CultureInfo.InvariantCulture, out result) ? (object)result : s };
break;
case PriceRule.ActionType.Payment:
case PriceRule.ActionType.AskAdvancePayment:
stringValue = PriceRule.GetStringValue(formula, ' ');
if (stringValue == null)
{
break;
}
try {
List <Token> tokens = RPNCalculator.ParseTokens(stringValue);
if (tokens.Count > 0)
{
values = new object [] { ((Operand)tokens [0]).Value }
}
;
} catch (Exception ex) {
ErrorHandling.LogException(ex);
}
break;
}
error = values == null || values.All(v => v == null);
}