/// <summary>
/// Gets a cold staking account.
/// </summary>
/// <remarks>
/// <para>In order to keep track of cold staking addresses and balances we are using <see cref="HdAccount"/>'s
/// with indexes starting from the value defined in <see cref="Wallet.Wallet.SpecialPurposeAccountIndexesStart"/>.
/// </para><para>
/// We are using two such accounts, one when the wallet is in the role of cold wallet, and another one when
/// the wallet is in the role of hot wallet. For this reason we specify the required account when calling this
/// method.
/// </para></remarks>
/// <param name="wallet">The wallet where we wish to create the account.</param>
/// <param name="isColdWalletAccount">Indicates whether we need the cold wallet account (versus the hot wallet account).</param>
/// <returns>The cold staking account or <c>null</c> if the account does not exist.</returns>
internal HdAccount GetColdStakingAccount(Wallet.Wallet wallet, bool isColdWalletAccount)
{
this.logger.LogTrace("({0}:'{1}',{2}:{3})", nameof(wallet), wallet.Name, nameof(isColdWalletAccount), isColdWalletAccount);
var coinType = (CoinType)wallet.Network.Consensus.CoinType;
HdAccount account = wallet.GetAccountByCoinType(isColdWalletAccount ? ColdWalletAccountName : HotWalletAccountName, coinType);
if (account == null)
{
this.logger.LogTrace("(-)[ACCOUNT_DOES_NOT_EXIST]:null");
return(null);
}
this.logger.LogTrace("(-):'{0}'", account.Name);
return(account);
}
private BuildCallContractTransactionResponse BuildCallTx(BuildCallContractTransactionRequest request)
{
this.logger.LogTrace(request.ToString());
AddressBalance addressBalance = this.walletManager.GetAddressBalance(request.Sender);
if (addressBalance.AmountConfirmed == 0)
{
return(BuildCallContractTransactionResponse.Failed($"The 'Sender' address you're trying to spend from doesn't have a confirmed balance. Current unconfirmed balance: {addressBalance.AmountUnconfirmed}. Please check the 'Sender' address."));
}
var selectedInputs = new List <OutPoint>();
selectedInputs = this.walletManager.GetSpendableTransactionsInWallet(request.WalletName, MinConfirmationsAllChecks).Where(x => x.Address.Address == request.Sender).Select(x => x.ToOutPoint()).ToList();
ulong gasPrice = ulong.Parse(request.GasPrice);
ulong gasLimit = ulong.Parse(request.GasLimit);
uint160 addressNumeric = new Address(request.ContractAddress).ToUint160(this.network);
SmartContractCarrier carrier;
if (request.Parameters != null && request.Parameters.Any())
{
carrier = SmartContractCarrier.CallContract(ReflectionVirtualMachine.VmVersion, addressNumeric, request.MethodName, gasPrice, new Gas(gasLimit), request.Parameters);
}
else
{
carrier = SmartContractCarrier.CallContract(ReflectionVirtualMachine.VmVersion, addressNumeric, request.MethodName, gasPrice, new Gas(gasLimit));
}
HdAddress senderAddress = null;
if (!string.IsNullOrWhiteSpace(request.Sender))
{
Wallet.Wallet wallet = this.walletManager.GetWallet(request.WalletName);
HdAccount account = wallet.GetAccountByCoinType(request.AccountName, this.coinType);
senderAddress = account.GetCombinedAddresses().FirstOrDefault(x => x.Address == request.Sender);
}
ulong totalFee = (gasPrice * gasLimit) + Money.Parse(request.FeeAmount);
var context = new TransactionBuildContext(
new WalletAccountReference(request.WalletName, request.AccountName),
new[] { new Recipient {
Amount = request.Amount, ScriptPubKey = new Script(carrier.Serialize())
} }.ToList(),
request.Password)
{
TransactionFee = totalFee,
ChangeAddress = senderAddress,
SelectedInputs = selectedInputs,
MinConfirmations = MinConfirmationsAllChecks,
UseAllInputs = false,
DustPrevention = false
};
try
{
Transaction transaction = this.walletTransactionHandler.BuildTransaction(context);
return(BuildCallContractTransactionResponse.Succeeded(request.MethodName, transaction, context.TransactionFee));
}
catch (Exception exception)
{
return(BuildCallContractTransactionResponse.Failed(exception.Message));
}
}