public static Transaction CreateAndSignCoinstakeTransaction(SegWitCoin kernelCoin, long totalReward, uint currentBlockTime, string passphrase, out Key privateKey)
{
var tx = CreateCoinstakeTransaction(kernelCoin, totalReward, currentBlockTime, passphrase, out privateKey);
SigningService.SignInputs(tx, new[] { privateKey }, new[] { kernelCoin });
return(tx);
}
public TransactionResponse BuildTransaction(List <Recipient> recipients, bool sign, string passphrase = null, List <Burn> burns = null)
{
var tx = this.network.CreateTransaction();
// add recipients
long recipientsAmount = 0;
foreach (Recipient recipient in recipients)
{
recipientsAmount += recipient.Amount;
tx.Outputs.Add(new TxOut(recipient.Amount, recipient.Address.GetScriptPubKey()));
}
// add burns
long burnAmount = 0;
if (burns != null)
{
foreach (Burn burn in burns)
{
burnAmount += burn.Amount;
tx.Outputs.Add(new TxOut(burn.Amount, TxNullDataTemplate.Instance.GenerateScriptPubKey(burn.Data)));
}
}
long totalSendAmount = recipientsAmount + burnAmount;
// calculate size, fee and change amount
long addedFee = this.minimumPossibleFee;
SegWitCoin[] selectedCoins;
while (true)
{
tx.Inputs.Clear();
int selectedCount = 0;
long selectedAmount = 0;
selectedCoins = AddCoins(totalSendAmount, addedFee).ToArray();
foreach (var c in selectedCoins)
{
selectedCount++;
selectedAmount += c.UtxoValue;
tx.Inputs.Add(new TxIn(new OutPoint(c.UtxoTxHash, c.UtxoTxN)));
}
var virtualSize = tx.GetVirtualSize() + selectedCount * SignatureVirtualSize + ChangeOutputVirtualSize;
long requiredFee = virtualSize * this.feePer1000VBytes / 1000;
if (addedFee == requiredFee)
{
var change = selectedAmount - totalSendAmount - addedFee;
if (change > this.dustThreshold)
{
TxOut changeOutput = GetOutputForChange(passphrase, !sign);
changeOutput.Value = change;
tx.Outputs.Add(changeOutput);
}
break;
}
addedFee = requiredFee;
}
// signing
if (sign)
{
var keys = DecryptKeys(selectedCoins, passphrase);
SigningService.SignInputs(tx, keys, selectedCoins);
}
var response = new TransactionResponse
{
Transaction = tx,
Hex = tx.ToHex(),
Fee = addedFee,
VirtualSize = tx.GetVirtualSize(),
SerializedSize = tx.GetSerializedSize(),
TransactionId = tx.GetHash(),
BroadcastState = BroadcastState.NotSet
};
return(response);
}
