public string Convert(decimal input)
{
int cents = GetCents(input);
long dollars = (long)input;
List <TripletBlock> hundredblocks = new List <TripletBlock>();
int blockindex = 1;
while (TrySplitAtPowerOf10(dollars, 3, out long left, out int right))
{
hundredblocks.Add(new TripletBlock(blockindex, right));
dollars = left;
blockindex++;
}
hundredblocks.Add(new TripletBlock(blockindex, (int)dollars));
TripletBlock centsBlock = new TripletBlock(0, cents);
return(CombineBlocks(hundredblocks, centsBlock, dollars != 1, cents > 0, cents != 1));
}
private string CombineBlocks(List <TripletBlock> blocks, TripletBlock cents, bool usePluralForDollars, bool displayCents, bool usePluralForCents)
{
StringBuilder builder = new StringBuilder();
var blocksOrdered = blocks.OrderBy(x => - x.Index);
List <string> stringvalues = new List <string>();
foreach (var block in blocksOrdered)
{
stringvalues.AddRange(BlockToStrings(block.Value, includeZero: blocks.Count == 1));
if (powersOfTen.ContainsKey(block.Index))
{
stringvalues.Add(powersOfTen[block.Index]);
}
}
if (usePluralForDollars)
{
stringvalues.Add("dollars");
}
else
{
stringvalues.Add("dollar");
}
if (displayCents)
{
stringvalues.Add("and");
stringvalues.AddRange(BlockToStrings(cents.Value, includeZero: false));
if (usePluralForCents)
{
stringvalues.Add("cents");
}
else
{
stringvalues.Add("cent");
}
}
return(string.Join(" ", stringvalues.ToArray()));
}
