/// <summary>
/// Calculates how many inputs are desirable to be registered
/// based on roughly the total number of coins in a wallet.
/// Note: random biasing is applied.
/// </summary>
/// <returns>Desired input count.</returns>
private static int GetInputTarget(int nonPrivateCount, int privateCount, WasabiRandom rnd)
{
var utxoCount = nonPrivateCount + privateCount;
var utxoCountTarget = 21;
var minPrivateUtxoCountTarget = 10;
var maxUtxoCountTarget = 100;
int targetInputCount;
if (utxoCount < utxoCountTarget)
{
targetInputCount = 1;
}
else if (utxoCount > maxUtxoCountTarget ||
privateCount > utxoCountTarget ||
(privateCount > nonPrivateCount && privateCount >= minPrivateUtxoCountTarget))
{
targetInputCount = MaxInputsRegistrableByWallet;
}
else
{
var min = 2;
var max = MaxInputsRegistrableByWallet - 1;
var percent = (double)(utxoCount - utxoCountTarget) / (maxUtxoCountTarget - utxoCountTarget);
targetInputCount = (int)Math.Round((max - min) * percent + min);
}
var distance = new Dictionary <int, int>();
for (int i = 1; i <= MaxInputsRegistrableByWallet; i++)
{
distance.TryAdd(i, Math.Abs(i - targetInputCount));
}
foreach (var best in distance.OrderBy(x => x.Value))
{
if (rnd.GetInt(0, 10) < 5)
{
return(best.Key);
}
}
return(targetInputCount);
}
