public ConversionStrategy CreateConversionStrategy(HundredGroup hundredGroup)
{
if (HasHundredsAndTensOrUnits(hundredGroup))
return new HundredsTensAndUnitsConversionStrategy(numberDescriber);
if (HasHundreds(hundredGroup))
return new HundredsConversionStrategy(numberDescriber);
return new TensAndUnitsConversionStrategy(numberDescriber);
}
public override string Convert(HundredGroup hundredGroup)
{
var lookupResult = NumberDescriber.LookupNumber(hundredGroup.Number);
if (lookupResult.Found) return lookupResult.Description;
var tens = NumberDescriber.LookupNumber(hundredGroup.Tens);
var units = NumberDescriber.LookupNumber(hundredGroup.Units);
return Format(tens, units);
}
private ConversionStrategy GetConversionStrategy(HundredGroup hundredGroup)
{
var factory = new ConversionStrategyFactory(NumberDescriber);
return factory.CreateConversionStrategy(hundredGroup);
}
private string ConvertTensAndUnits(HundredGroup hundredGroup)
{
var tensAndUnits = new HundredGroup(hundredGroup.Tens + hundredGroup.Units);
return GetConversionStrategy(tensAndUnits).Convert(tensAndUnits);
}
private string ConvertHundreds(HundredGroup hundredGroup)
{
var hundreds = new HundredGroup(hundredGroup.Hundreds);
return GetConversionStrategy(hundreds).Convert(hundreds);
}
public override string Convert(HundredGroup hundredGroup)
{
var hundreds = ConvertHundreds(hundredGroup);
var tensAndUnits = ConvertTensAndUnits(hundredGroup);
return Format(hundreds, NumberDescriber.Conjunction, tensAndUnits);
}
public abstract string Convert(HundredGroup hundredGroup);
private static bool HasTensOrUnits(HundredGroup hundredGroup)
{
return (hundredGroup.Tens + hundredGroup.Units) > 0;
}
private static bool HasHundredsAndTensOrUnits(HundredGroup hundredGroup)
{
return HasHundreds(hundredGroup) && HasTensOrUnits(hundredGroup);
}
private static bool HasHundreds(HundredGroup hundredGroup)
{
return hundredGroup.Hundreds > 0;
}
public override string Convert(HundredGroup hundredGroup)
{
var numberOfHundreds = NumberDescriber.LookupNumber(hundredGroup.NumberOfHundreds);
var hundred = NumberDescriber.LookupPositionalName(100);
return Format(numberOfHundreds, hundred);
}
