private async Task <IEnumerable <EthereumTransaction> > CreatePaymentTxsAsync(
ClientSwap swap,
int lockTimeInSeconds,
CancellationToken cancellationToken = default(CancellationToken))
{
Log.Debug("Create payment transactions for swap {@swapId}", swap.Id);
var requiredAmountInEth = AmountHelper.QtyToAmount(swap.Side, swap.Qty, swap.Price);
var refundTimeStampUtcInSec = new DateTimeOffset(swap.TimeStamp.ToUniversalTime().AddSeconds(lockTimeInSeconds)).ToUnixTimeSeconds();
var isInitTx = true;
var rewardForRedeemInEth = swap.PartyRewardForRedeem;
var unspentAddresses = (await Account
.GetUnspentAddressesAsync(Eth, cancellationToken)
.ConfigureAwait(false))
.ToList()
.SortList((a, b) => a.AvailableBalance().CompareTo(b.AvailableBalance()));
var transactions = new List <EthereumTransaction>();
foreach (var walletAddress in unspentAddresses)
{
Log.Debug("Create swap payment tx from address {@address} for swap {@swapId}", walletAddress.Address, swap.Id);
var balanceInEth = (await Account
.GetAddressBalanceAsync(
currency: Eth,
address: walletAddress.Address,
cancellationToken: cancellationToken)
.ConfigureAwait(false))
.Available;
Log.Debug("Available balance: {@balance}", balanceInEth);
var feeAmountInEth = isInitTx
? (rewardForRedeemInEth == 0
? Eth.InitiateFeeAmount
: Eth.InitiateWithRewardFeeAmount)
: Eth.AddFeeAmount;
var amountInEth = Math.Min(balanceInEth - feeAmountInEth, requiredAmountInEth);
if (amountInEth <= 0)
{
Log.Warning(
"Insufficient funds at {@address}. Balance: {@balance}, feeAmount: {@feeAmount}, result: {@result}.",
walletAddress.Address,
balanceInEth,
feeAmountInEth,
amountInEth);
continue;
}
requiredAmountInEth -= amountInEth;
var nonce = await EthereumNonceManager.Instance
.GetNonce(Eth, walletAddress.Address)
.ConfigureAwait(false);
TransactionInput txInput;
if (isInitTx)
{
var message = new InitiateFunctionMessage
{
HashedSecret = swap.SecretHash,
Participant = swap.PartyAddress,
RefundTimestamp = refundTimeStampUtcInSec,
AmountToSend = Atomix.Ethereum.EthToWei(amountInEth),
FromAddress = walletAddress.Address,
GasPrice = Atomix.Ethereum.GweiToWei(Eth.GasPriceInGwei),
Nonce = nonce,
RedeemFee = Atomix.Ethereum.EthToWei(rewardForRedeemInEth)
};
var initiateGasLimit = rewardForRedeemInEth == 0
? Eth.InitiateGasLimit
: Eth.InitiateWithRewardGasLimit;
message.Gas = await EstimateGasAsync(message, new BigInteger(initiateGasLimit))
.ConfigureAwait(false);
txInput = message.CreateTransactionInput(Eth.SwapContractAddress);
}
else
{
var message = new AddFunctionMessage
{
HashedSecret = swap.SecretHash,
AmountToSend = Atomix.Ethereum.EthToWei(amountInEth),
FromAddress = walletAddress.Address,
GasPrice = Atomix.Ethereum.GweiToWei(Eth.GasPriceInGwei),
Nonce = nonce,
};
message.Gas = await EstimateGasAsync(message, new BigInteger(Eth.AddGasLimit))
.ConfigureAwait(false);
txInput = message.CreateTransactionInput(Eth.SwapContractAddress);
}
transactions.Add(new EthereumTransaction(Eth, txInput)
{
Type = EthereumTransaction.OutputTransaction
});
if (isInitTx)
{
isInitTx = false;
}
if (requiredAmountInEth == 0)
{
break;
}
}
if (requiredAmountInEth > 0)
{
Log.Warning("Insufficient funds (left {@requredAmount}).", requiredAmountInEth);
return(Enumerable.Empty <EthereumTransaction>());
}
return(transactions);
}
protected virtual async Task <IEnumerable <EthereumTransaction> > CreatePaymentTxsAsync(
Swap swap,
int lockTimeInSeconds,
CancellationToken cancellationToken = default)
{
var eth = Eth;
Log.Debug("Create payment transactions for swap {@swapId}", swap.Id);
var requiredAmountInEth = AmountHelper.QtyToAmount(swap.Side, swap.Qty, swap.Price, eth.DigitsMultiplier);
var refundTimeStampUtcInSec = new DateTimeOffset(swap.TimeStamp.ToUniversalTime().AddSeconds(lockTimeInSeconds)).ToUnixTimeSeconds();
var isInitTx = true;
var rewardForRedeemInEth = swap.PartyRewardForRedeem;
var unspentAddresses = (await _account
.GetUnspentAddressesAsync(cancellationToken)
.ConfigureAwait(false))
.ToList()
.SortList(new AvailableBalanceAscending());
var transactions = new List <EthereumTransaction>();
foreach (var walletAddress in unspentAddresses)
{
Log.Debug("Create swap payment tx from address {@address} for swap {@swapId}", walletAddress.Address, swap.Id);
var balanceInEth = (await _account
.GetAddressBalanceAsync(
address: walletAddress.Address,
cancellationToken: cancellationToken)
.ConfigureAwait(false))
.Available;
Log.Debug("Available balance: {@balance}", balanceInEth);
var feeAmountInEth = isInitTx
? rewardForRedeemInEth == 0
? eth.InitiateFeeAmount
: eth.InitiateWithRewardFeeAmount
: eth.AddFeeAmount;
var amountInEth = Math.Min(balanceInEth - feeAmountInEth, requiredAmountInEth);
if (amountInEth <= 0)
{
Log.Warning(
"Insufficient funds at {@address}. Balance: {@balance}, feeAmount: {@feeAmount}, result: {@result}.",
walletAddress.Address,
balanceInEth,
feeAmountInEth,
amountInEth);
continue;
}
requiredAmountInEth -= amountInEth;
var nonceResult = await EthereumNonceManager.Instance
.GetNonceAsync(eth, walletAddress.Address)
.ConfigureAwait(false);
if (nonceResult.HasError)
{
Log.Error("Nonce getting error with code {@code} and description {@description}",
nonceResult.Error.Code,
nonceResult.Error.Description);
return(null);
}
TransactionInput txInput;
if (isInitTx)
{
var message = new InitiateFunctionMessage
{
HashedSecret = swap.SecretHash,
Participant = swap.PartyAddress,
RefundTimestamp = refundTimeStampUtcInSec,
AmountToSend = Atomex.Ethereum.EthToWei(amountInEth),
FromAddress = walletAddress.Address,
GasPrice = Atomex.Ethereum.GweiToWei(eth.GasPriceInGwei),
Nonce = nonceResult.Value,
RedeemFee = Atomex.Ethereum.EthToWei(rewardForRedeemInEth)
};
var initiateGasLimit = rewardForRedeemInEth == 0
? eth.InitiateGasLimit
: eth.InitiateWithRewardGasLimit;
message.Gas = await EstimateGasAsync(message, new BigInteger(initiateGasLimit))
.ConfigureAwait(false);
txInput = message.CreateTransactionInput(eth.SwapContractAddress);
}
else
{
var message = new AddFunctionMessage
{
HashedSecret = swap.SecretHash,
AmountToSend = Atomex.Ethereum.EthToWei(amountInEth),
FromAddress = walletAddress.Address,
GasPrice = Atomex.Ethereum.GweiToWei(Eth.GasPriceInGwei),
Nonce = nonceResult.Value,
};
message.Gas = await EstimateGasAsync(message, new BigInteger(eth.AddGasLimit))
.ConfigureAwait(false);
txInput = message.CreateTransactionInput(eth.SwapContractAddress);
}
transactions.Add(new EthereumTransaction(eth, txInput)
{
Type = BlockchainTransactionType.Output | BlockchainTransactionType.SwapPayment
});
if (isInitTx)
{
isInitTx = false;
}
if (requiredAmountInEth == 0)
{
break;
}
}
if (requiredAmountInEth > 0)
{
Log.Warning("Insufficient funds (left {@requiredAmount}).", requiredAmountInEth);
return(Enumerable.Empty <EthereumTransaction>());
}
return(transactions);
}