private async void RefundTimeReachedEventHandler(
Swap swap,
CancellationToken cancellationToken = default)
{
Log.Debug("Refund time reached for swap {@swapId}", swap.Id);
try
{
var isRefundedResult = await NYXSwapRefundedHelper.IsRefundedAsync(
swap : swap,
currency : NYX,
tezos : Xtz,
attempts : MaxRefundCheckAttempts,
attemptIntervalInSec : RefundCheckAttemptIntervalInSec,
cancellationToken : cancellationToken)
.ConfigureAwait(false);
if (!isRefundedResult.HasError)
{
if (isRefundedResult.Value)
{
RefundConfirmedEventHandler(swap, swap.RefundTx, cancellationToken);
}
else
{
await RefundAsync(swap, cancellationToken)
.ConfigureAwait(false);
}
}
}
catch (Exception e)
{
Log.Error(e, "Error in refund time reached handler");
}
}
public override async Task RedeemAsync(
Swap swap,
CancellationToken cancellationToken = default)
{
var nyx = NYX;
var secretResult = await NYXSwapRedeemedHelper
.IsRedeemedAsync(
swap : swap,
currency : nyx,
tezos : Xtz,
attempts : MaxRedeemCheckAttempts,
attemptIntervalInSec : RedeemCheckAttemptIntervalInSec,
cancellationToken : cancellationToken)
.ConfigureAwait(false);
if (!secretResult.HasError && secretResult.Value != null)
{
RedeemConfirmedEventHandler(swap, null, cancellationToken);
return;
}
if (swap.StateFlags.HasFlag(SwapStateFlags.IsRedeemBroadcast) &&
swap.RedeemTx != null &&
swap.RedeemTx.CreationTime != null &&
swap.RedeemTx.CreationTime.Value.ToUniversalTime() + TimeSpan.FromMinutes(5) > DateTime.UtcNow)
{
// redeem already broadcast
TrackTransactionConfirmationAsync(
swap: swap,
currency: nyx,
txId: swap.RedeemTx.Id,
confirmationHandler: RedeemConfirmedEventHandler,
cancellationToken: cancellationToken)
.FireAndForget();
return;
}
// check already refunded by initiator
if (swap.IsAcceptor &&
swap.TimeStamp.ToUniversalTime().AddSeconds(DefaultInitiatorLockTimeInSeconds) < DateTime.UtcNow)
{
var isRefundedByParty = await NYXSwapRefundedHelper
.IsRefundedAsync(swap, nyx, Xtz, cancellationToken)
.ConfigureAwait(false);
if (isRefundedByParty != null &&
!isRefundedByParty.HasError &&
isRefundedByParty.Value)
{
swap.StateFlags |= SwapStateFlags.IsUnsettled;
RaiseSwapUpdated(swap, SwapStateFlags.IsUnsettled);
return;
}
}
if (swap.IsInitiator)
{
var redeemDeadline = swap.TimeStamp.ToUniversalTime().AddSeconds(DefaultAcceptorLockTimeInSeconds) - RedeemTimeReserve;
if (DateTime.UtcNow > redeemDeadline)
{
Log.Error("Redeem dedline reached for swap {@swap}", swap.Id);
return;
}
}
Log.Debug("Create redeem for swap {@swapId}", swap.Id);
var walletAddress = (await NYXAccount
.GetUnspentAddressesAsync(
toAddress: swap.ToAddress,
amount: 0,
fee: 0,
feePrice: 0,
feeUsagePolicy: FeeUsagePolicy.EstimatedFee,
addressUsagePolicy: AddressUsagePolicy.UseOnlyOneAddress,
transactionType: BlockchainTransactionType.SwapRedeem,
cancellationToken: cancellationToken)
.ConfigureAwait(false))
.FirstOrDefault();
if (walletAddress == null)
{
Log.Error("Insufficient funds for redeem");
return;
}
var redeemTx = new TezosTransaction
{
Currency = nyx,
CreationTime = DateTime.UtcNow,
From = walletAddress.Address,
To = nyx.SwapContractAddress,
Amount = 0,
Fee = nyx.RedeemFee + nyx.RevealFee,
GasLimit = nyx.RedeemGasLimit,
StorageLimit = nyx.RedeemStorageLimit,
Params = RedeemParams(swap),
UseDefaultFee = true,
Type = BlockchainTransactionType.Output | BlockchainTransactionType.SwapRedeem
};
var signResult = await SignTransactionAsync(redeemTx, cancellationToken)
.ConfigureAwait(false);
if (!signResult)
{
Log.Error("Transaction signing error");
return;
}
swap.RedeemTx = redeemTx;
swap.StateFlags |= SwapStateFlags.IsRedeemSigned;
RaiseSwapUpdated(swap, SwapStateFlags.IsRedeemSigned);
await BroadcastTxAsync(swap, redeemTx, cancellationToken)
.ConfigureAwait(false);
swap.RedeemTx = redeemTx;
swap.StateFlags |= SwapStateFlags.IsRedeemBroadcast;
RaiseSwapUpdated(swap, SwapStateFlags.IsRedeemBroadcast);
TrackTransactionConfirmationAsync(
swap: swap,
currency: nyx,
txId: redeemTx.Id,
confirmationHandler: RedeemConfirmedEventHandler,
cancellationToken: cancellationToken)
.FireAndForget();
}