public override Task StartWaitForRedeemBySomeoneAsync(
Swap swap,
CancellationToken cancellationToken = default)
{
Log.Debug("Wait redeem for swap {@swapId}", swap.Id);
// start redeem control async
_ = Fa12SwapRedeemedHelper.StartSwapRedeemedControlAsync(
swap: swap,
currency: Fa12Config,
tezos: XtzConfig,
refundTimeUtc: swap.TimeStamp.ToUniversalTime().AddSeconds(DefaultAcceptorLockTimeInSeconds),
interval: TimeSpan.FromSeconds(30),
cancelOnlyIfRefundTimeReached: true,
redeemedHandler: RedeemBySomeoneCompletedEventHandler,
canceledHandler: RedeemBySomeoneCanceledEventHandler,
cancellationToken: cancellationToken);
return(Task.CompletedTask);
}
public override Task StartWaitForRedeemAsync(
Swap swap,
CancellationToken cancellationToken = default)
{
var lockTimeInSeconds = swap.IsInitiator
? DefaultInitiatorLockTimeInSeconds
: DefaultAcceptorLockTimeInSeconds;
// start redeem control async
_ = Fa12SwapRedeemedHelper.StartSwapRedeemedControlAsync(
swap: swap,
currency: Fa12Config,
tezos: XtzConfig,
refundTimeUtc: swap.TimeStamp.ToUniversalTime().AddSeconds(lockTimeInSeconds),
interval: TimeSpan.FromSeconds(30),
cancelOnlyIfRefundTimeReached: true,
redeemedHandler: RedeemCompletedEventHandler,
canceledHandler: RedeemCanceledEventHandler,
cancellationToken: cancellationToken);
return(Task.CompletedTask);
}
public override async Task RedeemAsync(
Swap swap,
CancellationToken cancellationToken = default)
{
var fa12 = Fa12Config;
var secretResult = await Fa12SwapRedeemedHelper
.IsRedeemedAsync(
swap : swap,
currency : fa12,
tezos : XtzConfig,
attempts : TezosSwap.MaxRedeemCheckAttempts,
attemptIntervalInSec : TezosSwap.RedeemCheckAttemptIntervalInSec,
cancellationToken : cancellationToken)
.ConfigureAwait(false);
if (!secretResult.HasError && secretResult.Value != null)
{
await RedeemConfirmedEventHandler(swap, null, cancellationToken)
.ConfigureAwait(false);
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: fa12,
dataRepository: Fa12Account.DataRepository,
txId: swap.RedeemTx.Id,
confirmationHandler: RedeemConfirmedEventHandler,
cancellationToken: cancellationToken);
return;
}
// check already refunded by initiator
if (swap.IsAcceptor &&
swap.TimeStamp.ToUniversalTime().AddSeconds(DefaultInitiatorLockTimeInSeconds) < DateTime.UtcNow)
{
var isRefundedByParty = await Fa12SwapRefundedHelper
.IsRefundedAsync(swap, fa12, XtzConfig, cancellationToken)
.ConfigureAwait(false);
if (isRefundedByParty != null &&
!isRefundedByParty.HasError &&
isRefundedByParty.Value)
{
swap.StateFlags |= SwapStateFlags.IsUnsettled;
await UpdateSwapAsync(swap, SwapStateFlags.IsUnsettled, cancellationToken)
.ConfigureAwait(false);
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 TezosAccount
.GetAddressAsync(swap.RedeemFromAddress, cancellationToken)
.ConfigureAwait(false);
if (walletAddress == null)
{
Log.Error("Can't get address {@address} for redeem from local db", swap.RedeemFromAddress);
return;
}
if (walletAddress == null)
{
Log.Error("Insufficient funds for redeem");
return;
}
var feeAmountInMtz = fa12.RedeemFee + fa12.RevealFee;
var storageLimitInMtz = fa12.RedeemStorageLimit * fa12.StorageFeeMultiplier;
if (walletAddress.Balance.ToMicroTez() < feeAmountInMtz + storageLimitInMtz)
{
Log.Error("Insufficient funds for redeem");
return;
}
var redeemTx = new TezosTransaction
{
Currency = XtzConfig.Name,
CreationTime = DateTime.UtcNow,
From = walletAddress.Address,
To = fa12.SwapContractAddress,
Amount = 0,
Fee = fa12.RedeemFee + fa12.RevealFee,
GasLimit = fa12.RedeemGasLimit,
StorageLimit = fa12.RedeemStorageLimit,
Params = CreateRedeemParams(swap),
Type = BlockchainTransactionType.Output | BlockchainTransactionType.SwapRedeem,
UseRun = true,
UseSafeStorageLimit = true,
UseOfflineCounter = true
};
try
{
await TezosAccount.AddressLocker
.LockAsync(redeemTx.From, cancellationToken)
.ConfigureAwait(false);
using var securePublicKey = TezosAccount.Wallet
.GetPublicKey(XtzConfig, walletAddress.KeyIndex, walletAddress.KeyType);
// fill operation
var(fillResult, isRunSuccess, hasReveal) = await redeemTx
.FillOperationsAsync(
securePublicKey : securePublicKey,
tezosConfig : XtzConfig,
headOffset : TezosConfig.HeadOffset,
cancellationToken : cancellationToken)
.ConfigureAwait(false);
var signResult = await SignTransactionAsync(redeemTx, cancellationToken)
.ConfigureAwait(false);
if (!signResult)
{
Log.Error("Transaction signing error");
return;
}
swap.RedeemTx = redeemTx;
swap.StateFlags |= SwapStateFlags.IsRedeemSigned;
await UpdateSwapAsync(swap, SwapStateFlags.IsRedeemSigned, cancellationToken)
.ConfigureAwait(false);
await BroadcastTxAsync(swap, redeemTx, cancellationToken)
.ConfigureAwait(false);
}
catch
{
throw;
}
finally
{
TezosAccount.AddressLocker.Unlock(redeemTx.From);
}
swap.RedeemTx = redeemTx;
swap.StateFlags |= SwapStateFlags.IsRedeemBroadcast;
await UpdateSwapAsync(swap, SwapStateFlags.IsRedeemBroadcast, cancellationToken)
.ConfigureAwait(false);
_ = TrackTransactionConfirmationAsync(
swap: swap,
currency: XtzConfig,
dataRepository: Fa12Account.DataRepository,
txId: redeemTx.Id,
confirmationHandler: RedeemConfirmedEventHandler,
cancellationToken: cancellationToken);
}