// 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)
{
Hash txHash = Hash.Null;
string txStr = null;
var inProgressMap = new StorageMap(TokenSwapper.InProgressTag, Swapper.Storage);
var rpcMap = new StorageMap(TokenSwapper.UsedRpcTag, Swapper.Storage);
if (inProgressMap.ContainsKey <Hash>(sourceHash))
{
txStr = inProgressMap.Get <Hash, string>(sourceHash);
if (!string.IsNullOrEmpty(txStr))
{
return(VerifyNeoTx(sourceHash, txStr));
}
}
var total = Numerics.UnitConversion.ToDecimal(amount, token.Decimals);
var neoKeys = NeoKeys.FromWIF(this.WIF);
var destAddress = NeoWallet.DecodeAddress(destination);
Logger.Debug($"NEOSWAP: Trying transfer of {total} {token.Symbol} from {neoKeys.Address} to {destAddress}");
var nonce = sourceHash.ToByteArray();
Neo.Core.Transaction tx = null;
string usedRpc = null;
try
{
if (token.Symbol == "NEO" || token.Symbol == "GAS")
{
tx = neoAPI.SendAsset(neoKeys, destAddress, token.Symbol, total, out usedRpc);
}
else
{
var nep5 = neoAPI.GetToken(token.Symbol);
tx = nep5.Transfer(neoKeys, destAddress, total, nonce, x => usedRpc = x);
}
// persist resulting tx hash as in progress
inProgressMap.Set <Hash, string>(sourceHash, tx.Hash.ToString());
rpcMap.Set <Hash, string>(sourceHash, usedRpc);
Logger.Debug("broadcasted neo tx: " + tx);
}
catch (Exception e)
{
Logger.Error("Error during transfering {token.Symbol}: " + e);
return(Hash.Null);
}
if (tx == null)
{
Logger.Error($"NeoAPI error {neoAPI.LastError} or possible failed neo swap sourceHash: {sourceHash} no transfer happend.");
return(Hash.Null);
}
var strHash = tx.Hash.ToString();
return(VerifyNeoTx(sourceHash, strHash));
}
