public async Task <RefundClaimStatus> TryClaimRefundAsync(DepositDetails deposit, Address refundTo)
{
ulong now = _timestamper.EpochSeconds;
if (!deposit.CanClaimRefund(now))
{
return(RefundClaimStatus.Empty);
}
Block?latestBlock = await _blockchainBridge.GetLatestBlockAsync();
if (latestBlock == null)
{
return(RefundClaimStatus.Empty);
}
now = (ulong)latestBlock.Timestamp;
if (!deposit.CanClaimRefund(now))
{
return(RefundClaimStatus.Empty);
}
Keccak depositId = deposit.Deposit.Id;
Keccak?transactionHash = deposit.ClaimedRefundTransaction?.Hash;
if (transactionHash is null)
{
Address provider = deposit.DataAsset.Provider.Address;
RefundClaim refundClaim = new RefundClaim(depositId, deposit.DataAsset.Id, deposit.Deposit.Units,
deposit.Deposit.Value, deposit.Deposit.ExpiryTime, deposit.Pepper, provider, refundTo);
UInt256 gasPrice = await _gasPriceService.GetCurrentAsync();
transactionHash = await _refundService.ClaimRefundAsync(refundTo, refundClaim, gasPrice);
if (transactionHash is null)
{
if (_logger.IsError)
{
_logger.Error("There was an error when trying to claim refund (no transaction hash returned).");
}
return(RefundClaimStatus.Empty);
}
deposit.AddClaimedRefundTransaction(TransactionInfo.Default(transactionHash, 0, gasPrice,
_refundService.GasLimit, _timestamper.EpochSeconds));
await _depositRepository.UpdateAsync(deposit);
if (_logger.IsInfo)
{
_logger.Info($"Claimed a refund for deposit: '{depositId}', gas price: {gasPrice} wei, transaction hash: '{transactionHash}' (awaits a confirmation).");
}
}
bool confirmed = await TryConfirmClaimAsync(deposit, string.Empty);
return(confirmed
? RefundClaimStatus.Confirmed(transactionHash)
: RefundClaimStatus.Unconfirmed(transactionHash));
}
public void Setup()
{
Prepare();
_claimedRefundTransactionHash = TestItem.KeccakA;
_refundService = Substitute.For <IRefundService>();
_refundService.ClaimRefundAsync(Arg.Any <Address>(), Arg.Any <RefundClaim>())
.Returns(_claimedRefundTransactionHash);
_refundService.ClaimEarlyRefundAsync(Arg.Any <Address>(), Arg.Any <EarlyRefundClaim>())
.Returns(_claimedRefundTransactionHash);
_depositRepository = Substitute.For <IDepositDetailsRepository>();
_transactionVerifier = Substitute.For <ITransactionVerifier>();
_transactionVerifier.VerifyAsync(Arg.Any <NdmTransaction>()).Returns(new TransactionVerifierResult(true, 1, 1));
_timestamper = new Timestamper();
_refundClaimant = new RefundClaimant(_refundService, _ndmBridge, _depositRepository,
_transactionVerifier, _timestamper, LimboLogs.Instance);
}
public async Task TryClaimRefundAsync(DepositDetails deposit, Address refundTo)
{
var now = _timestamper.EpochSeconds;
if (!deposit.CanClaimRefund(now))
{
return;
}
var latestBlock = await _blockchainBridge.GetLatestBlockAsync();
now = (ulong)latestBlock.Timestamp;
if (!deposit.CanClaimRefund(now))
{
return;
}
var depositId = deposit.Deposit.Id;
var transactionHash = deposit.ClaimedRefundTransactionHash;
if (transactionHash is null)
{
var provider = deposit.DataAsset.Provider.Address;
var refundClaim = new RefundClaim(depositId, deposit.DataAsset.Id, deposit.Deposit.Units,
deposit.Deposit.Value, deposit.Deposit.ExpiryTime, deposit.Pepper, provider, refundTo);
transactionHash = await _refundService.ClaimRefundAsync(refundTo, refundClaim);
deposit.SetClaimedRefundTransactionHash(transactionHash);
await _depositRepository.UpdateAsync(deposit);
if (_logger.IsInfo)
{
_logger.Info($"Claimed a refund for deposit: '{depositId}', transaction hash: '{transactionHash}' (awaits a confirmation).");
}
}
await TryConfirmClaimAsync(deposit, string.Empty);
}