private string GetRomanValueForBiggerNumbers(string romanValue,int quotient,Step step,string accumulatedString)
{
if (quotient <= 3)
romanValue += new string(step.Symbol, quotient);
else if (!step.CanSubtract)
romanValue = _stepsGenerator.GetNextSmallerSymbol(step) + romanValue;
else
{
if (quotient == 4)
romanValue = accumulatedString + step.Symbol.ToString() + _stepsGenerator.GetLastLevelSymbol(step) ;
else
romanValue = accumulatedString + step.Symbol.ToString() +_stepsGenerator.GetLastSubtractableLevelSymbol(step) ;
}
return romanValue;
}
private string GetRomanValueForSmallerNumbers(int number, string accumulatedString, Step step, int remainder)
{
var subtractables = _stepsGenerator.GetSubtractablesForLevel(step.Level);
if (subtractables != null && subtractables.Any())
{
var firstSubtractor = subtractables.First();
if ((firstSubtractor.Value + remainder) == step.Value)
return accumulatedString + firstSubtractor.Symbol.ToString() + step.Symbol.ToString();
if ((step.Value - firstSubtractor.Value) < number)
{
return GetRomanValue(number - (step.Value - firstSubtractor.Value), step.Level, firstSubtractor.Symbol.ToString() + step.Symbol.ToString());
}
}
return "";
}
private bool IsInvalidStep(Step step, int remainder)
{
return !step.CanSubtract && remainder > 3;
}
