// NOTE no locks happen here because this callback is called from within a lock
internal override Hash SettleSwap(Hash sourceHash, Address destination, IToken token, Numerics.BigInteger amount)
{
// check if tx was sent but not minded yet
string tx = null;
var inProgressMap = new StorageMap(TokenSwapper.InProgressTag, Swapper.Storage);
if (inProgressMap.ContainsKey <Hash>(sourceHash))
{
tx = inProgressMap.Get <Hash, string>(sourceHash);
if (!string.IsNullOrEmpty(tx))
{
return(VerifyEthTx(sourceHash, tx));
}
}
var total = Numerics.UnitConversion.ToDecimal(amount, token.Decimals);
var ethKeys = EthereumKey.FromWIF(this.WIF);
var destAddress = EthereumWallet.DecodeAddress(destination);
try
{
Logger.Debug($"ETHSWAP: Trying transfer of {total} {token.Symbol} from {ethKeys.Address} to {destAddress}");
var transferResult = ethAPI.TryTransferAsset(EthereumWallet.EthereumPlatform, token.Symbol, destAddress,
total, token.Decimals, out tx);
if (transferResult == EthTransferResult.Success)
{
// persist resulting tx hash as in progress
inProgressMap.Set <Hash, string>(sourceHash, tx);
Logger.Debug("broadcasted eth tx: " + tx);
}
else
{
Logger.Error($"ETHSWAP: Transfer of {total} {token.Symbol} from {ethKeys.Address} to {destAddress} failed, no tx generated");
}
}
catch (Exception e)
{
Logger.Error($"Exception during transfer: {e}");
// we don't know if the transfer happend or not, therefore can't delete from inProgressMap yet.
return(Hash.Null);
}
return(VerifyEthTx(sourceHash, tx));
}
protected override string GetAvailableAddress(string wif)
{
var ethKeys = EthereumKey.FromWIF(wif);
return(ethKeys.Address);
}