public async Task <RefundClaimStatus> TryClaimEarlyRefundAsync(DepositDetails deposit, Address refundTo)
{
var now = _timestamper.EpochSeconds;
if (!deposit.CanClaimEarlyRefund(now))
{
return(RefundClaimStatus.Empty);
}
var latestBlock = await _blockchainBridge.GetLatestBlockAsync();
now = (ulong)latestBlock.Timestamp;
if (!deposit.CanClaimEarlyRefund(now))
{
return(RefundClaimStatus.Empty);
}
var depositId = deposit.Deposit.Id;
var transactionHash = deposit.ClaimedRefundTransaction?.Hash;
if (transactionHash is null)
{
var provider = deposit.DataAsset.Provider.Address;
var ticket = deposit.EarlyRefundTicket;
var earlyRefundClaim = new EarlyRefundClaim(ticket.DepositId, deposit.DataAsset.Id,
deposit.Deposit.Units, deposit.Deposit.Value, deposit.Deposit.ExpiryTime, deposit.Pepper, provider,
ticket.ClaimableAfter, ticket.Signature, refundTo);
var gasPrice = await _gasPriceService.GetCurrentAsync();
transactionHash = await _refundService.ClaimEarlyRefundAsync(refundTo, earlyRefundClaim, gasPrice);
if (transactionHash is null)
{
if (_logger.IsError)
{
_logger.Error("There was an error when trying to claim early refund (no transaction hash returned).");
}
return(RefundClaimStatus.Empty);
}
deposit.SetClaimedRefundTransaction(new TransactionInfo(transactionHash, 0, gasPrice,
_refundService.GasLimit, _timestamper.EpochSeconds));
await _depositRepository.UpdateAsync(deposit);
if (_logger.IsInfo)
{
_logger.Info($"Claimed an early refund for deposit: '{depositId}', gas price: {gasPrice} wei, transaction hash: '{transactionHash}' (awaits a confirmation).");
}
}
var confirmed = await TryConfirmClaimAsync(deposit, "early ");
return(confirmed
? RefundClaimStatus.Confirmed(transactionHash)
: RefundClaimStatus.Unconfirmed(transactionHash));
}
public void can_claim_early_refund_returns_correctly_true()
{
var earlyRefundTicket = new EarlyRefundTicket(Keccak.Zero,
claimableAfter: 10,
new Signature(1, 2, 37));
_depositDetails.SetEarlyRefundTicket(earlyRefundTicket);
_depositDetails.SetConfirmationTimestamp(10);
bool canClaimEarlyRefund = _depositDetails.CanClaimEarlyRefund(currentBlockTimestamp: 20, depositTimestamp: 5);
Assert.IsTrue(canClaimEarlyRefund);
}
public async Task TryClaimEarlyRefundAsync(DepositDetails deposit, Address refundTo)
{
var now = (ulong)_blockchainBridge.Head.Timestamp;
if (!deposit.CanClaimEarlyRefund(now))
{
return;
}
var depositId = deposit.Deposit.Id;
var transactionHash = deposit.ClaimedRefundTransactionHash;
if (transactionHash is null)
{
var provider = deposit.DataAsset.Provider.Address;
var ticket = deposit.EarlyRefundTicket;
var earlyRefundClaim = new EarlyRefundClaim(ticket.DepositId, deposit.DataAsset.Id,
deposit.Deposit.Units, deposit.Deposit.Value, deposit.Deposit.ExpiryTime, deposit.Pepper, provider,
ticket.ClaimableAfter, ticket.Signature, refundTo);
transactionHash = _refundService.ClaimEarlyRefund(refundTo, earlyRefundClaim);
deposit.SetClaimedRefundTransactionHash(transactionHash);
await _depositRepository.UpdateAsync(deposit);
if (_logger.IsInfo)
{
_logger.Info($"Claimed an early refund for deposit: '{depositId}', transaction hash: '{transactionHash}' (awaits a confirmation).");
}
}
await TryConfirmClaimAsync(deposit, "early ");
}
public async Task <RefundClaimStatus> TryClaimEarlyRefundAsync(DepositDetails deposit, Address refundTo)
{
ulong now = _timestamper.EpochSeconds;
if (!deposit.CanClaimEarlyRefund(now, deposit.Timestamp))
{
return(RefundClaimStatus.Empty);
}
Block?latestBlock = await _blockchainBridge.GetLatestBlockAsync();
if (latestBlock == null)
{
return(RefundClaimStatus.Empty);
}
now = (ulong)latestBlock.Timestamp;
if (!deposit.CanClaimEarlyRefund(now, deposit.Timestamp))
{
return(RefundClaimStatus.Empty);
}
Keccak depositId = deposit.Deposit.Id;
Keccak?transactionHash = deposit.ClaimedRefundTransaction?.Hash;
if (transactionHash is null)
{
Address provider = deposit.DataAsset.Provider.Address;
if (deposit.EarlyRefundTicket == null)
{
throw new InvalidDataException($"Early refund ticket is null on a claimable deposit {depositId}");
}
EarlyRefundTicket ticket = deposit.EarlyRefundTicket;
EarlyRefundClaim earlyRefundClaim = new EarlyRefundClaim(ticket.DepositId, deposit.DataAsset.Id,
deposit.Deposit.Units, deposit.Deposit.Value, deposit.Deposit.ExpiryTime, deposit.Pepper, provider,
ticket.ClaimableAfter, ticket.Signature, refundTo);
UInt256 gasPrice = await _gasPriceService.GetCurrentRefundAsync();
transactionHash = await _refundService.ClaimEarlyRefundAsync(refundTo, earlyRefundClaim, gasPrice);
if (transactionHash is null)
{
if (_logger.IsError)
{
_logger.Error("There was an error when trying to claim early refund (no transaction hash returned).");
}
return(RefundClaimStatus.Empty);
}
deposit.AddClaimedRefundTransaction(TransactionInfo.Default(transactionHash, 0, gasPrice,
_refundService.GasLimit, _timestamper.EpochSeconds));
await _depositRepository.UpdateAsync(deposit);
if (_logger.IsInfo)
{
_logger.Info($"Claimed an early refund for deposit: '{depositId}', gas price: {gasPrice} wei, transaction hash: '{transactionHash}' (awaits a confirmation).");
}
}
bool confirmed = await TryConfirmClaimAsync(deposit, "early ");
return(confirmed
? RefundClaimStatus.Confirmed(transactionHash)
: RefundClaimStatus.Unconfirmed(transactionHash));
}