public RomanNumber(int num)
{
var arabic = new ArabicNumber(num);
var romanConvertibleCollection = new RomanConvertibleCollection(arabic);
var result = romanConvertibleCollection.ToString();
value = result;
}
private static IEnumerable <RomanSymbol> ExtractSymbolPart(ArabicNumber arabic, RomanSymbol romanSymbol)
{
if (SpecialRomanSymbols.ContainsEquivalent(arabic))
{
return(SpecialRomanSymbols.GetItemsFromEquivalent(arabic));
}
var repetition = RomanSymbolRepetition.FromOcurrancesOfSymbol(romanSymbol, arabic);
return(repetition.Equals(RomanSymbolRepetition.Empty)
? new RomanSymbol[0]
: repetition.Items);
}
private static RomanSymbol[] ComposeSymbolsFromNum(ArabicNumber evaluatingArabic)
{
var symbolList = RomanSymbols.GetAll()
.Reverse().ToArray();
List <RomanSymbol> result = new List <RomanSymbol>();
var arabic = evaluatingArabic;
var count = 0;
while (arabic.IsGreaterThan(ArabicNumber.Zero) && count < symbolList.Length)
{
var currSymbol = symbolList[count];
var part = ExtractSymbolPart(arabic, currSymbol);
if (part.Any())
{
result.AddRange(part);
arabic = evaluatingArabic.Substract(result.ToArray());
}
count++;
}
return(result.ToArray());
}
public RomanConvertibleCollection(ArabicNumber arabic)
{
Items = ComposeSymbolsFromNum(arabic);
}
internal bool IsGreaterThan(ArabicNumber other) => this.Value > other.Value;