public bool ShouldEvaluate(IRuleContext context)
{
bool shouldEvaluate = true;
if (context is not ICurrencyContext)
{
context.AddMessage(new GeneralRuleMessage {
Title = "The context was not of type ICurrencyContext."
});
shouldEvaluate = false;
}
var currencyContext = context as ICurrencyContext;
if (string.IsNullOrEmpty(currencyContext.CurrencyTo) || string.IsNullOrEmpty(currencyContext.CurrencyFrom))
{
context.AddMessage(new GeneralRuleMessage {
Title = "The Currency Rates data was not available."
});
shouldEvaluate = false;
}
return(shouldEvaluate);
}
public bool ShouldEvaluate(IRuleContext context)
{
bool shouldEvaluate = true;
if (context is not ICurrencyContext)
{
context.AddMessage(new GeneralRuleMessage {
Title = "The context was not of type ICurrencyContext."
});
shouldEvaluate = false;
}
var currencyContext = context as ICurrencyContext;
if (currencyContext.CurrentValue <= 0.0)
{
context.AddMessage(new GeneralRuleMessage {
Title = "The converted currency was zero, a fee cannot be assessed."
});
shouldEvaluate = false;
}
return(shouldEvaluate);
}