public static WalletHistoryFilterModel GetHistoryFilter(ChainIndexer chain, IWalletManager walletManager, IBlockRepository blockRepository, ITxMempool txMempool, Network network, WalletHistoryFilterRequest request)
{
bool isAddressFilter = request.Address == null ? false : true;
var model = new WalletHistoryFilterModel();
// Get a list of all the transactions found in an account (or in a wallet if no account is specified), with the addresses associated with them.
IEnumerable <HistoryFilter> historyFilters = walletManager.GetHistoryFilter(request.WalletName, request.Address, request.AccountName, request.FromDate);
foreach (HistoryFilter historyFilter in historyFilters)
{
var transactionItems = new List <TransactionHistoryItemModel>();
foreach (FlatHistorySlim item in historyFilter.History)
{
var isConfirmed = item.Transaction.BlockHeight.HasValue;
Transaction tx = new Transaction();
if (isConfirmed)
{
if (chain.Height == walletManager.WalletTipHeight)
{
tx = blockRepository.GetTransactionById(new uint256(item.Transaction.IsSent ? item.Transaction.SentTo : item.Transaction.OutPoint.Hash));
}
}
else
{
tx = txMempool.Get(new uint256(item.Transaction.IsSent ? item.Transaction.SentTo : item.Transaction.OutPoint.Hash));
}
if (tx == null)
{
continue;
}
bool isOutputContained = false;
bool isInputContained = false;
if (isAddressFilter)
{
if (item.Transaction.IsSent)
{
if (item.Transaction.IsCoinStake.HasValue && item.Transaction.IsCoinStake.Value == true)
{
// We don't show in history transactions that are outputs of staking transactions.
continue;
}
foreach (TxOut outp in tx.Outputs)
{
if (!isOutputContained)
{
if (outp.ScriptPubKey.IsUnspendable)
{
continue;
}
if (outp.ScriptPubKey.GetDestinationAddress(network).ToString() != (request.Address))
{
continue;
}
isOutputContained = true;
}
}
}
else
{
foreach (TxOut txOut in tx.Outputs)
{
if (!isOutputContained && !tx.IsCoinStake)
{
if (!txOut.ScriptPubKey.IsUnspendable)
{
if (txOut.ScriptPubKey.GetDestinationAddress(network).ToString() != request.Address)
{
continue;
}
isOutputContained = true;
}
}
}
}
}
var modelItem = new TransactionHistoryItemModel
{
Type = item.Transaction.IsSent ? TransactionItemType.Send : TransactionItemType.Received,
Amount = item.Transaction.IsSent == false ? item.Transaction.Amount : Money.Zero,
Id = item.Transaction.IsSent ? item.Transaction.SentTo : item.Transaction.OutPoint.Hash,
Timestamp = item.Transaction.CreationTime,
ConfirmedInBlock = item.Transaction.BlockHeight,
BlockIndex = item.Transaction.BlockIndex
};
int n = 0;
modelItem.Outputs.AddRange(tx.Outputs.Select(x => new Vout(n++, x, network)).Where(y => y.ScriptPubKey.Type == "nulldata"));
if (item.Transaction.IsSent == true) // handle send entries
{
// First we look for staking transaction as they require special attention.
// A staking transaction spends one of our inputs into 2 outputs or more, paid to the same address.
if ((item.Transaction.IsCoinStake ?? false == true))
{
if (item.Transaction.IsSent == true)
{
modelItem.Type = TransactionItemType.Staked;
var amount = item.Transaction.SentPayments.Sum(p => p.Amount);
modelItem.Amount = amount - item.Transaction.Amount;
}
else
{
// We don't show in history transactions that are outputs of staking transactions.
continue;
}
}
else
{
if (item.Transaction.SentPayments.All(a => a.PayToSelf == true))
{
// if all outputs are to ourself
// we don't show that in history
continue;
}
modelItem.Amount = item.Transaction.SentPayments.Where(x => x.PayToSelf == false).Sum(p => p.Amount);
foreach (TxIn input in tx.Inputs)
{
InputHistoryDetailModel inputHistoryDetail = new InputHistoryDetailModel()
{
ScriptSig = input.ScriptSig,
Sequence = input.Sequence,
TxId = input.PrevOut.Hash.ToString(),
VOut = input.PrevOut.N,
};
if (input.ScriptSig.GetSigner(network) == null)
{
TxOut prevOutTx = blockRepository.GetTransactionById(input.PrevOut.Hash).Outputs[input.PrevOut.N];
string address = prevOutTx.ScriptPubKey.GetDestinationPublicKeys(network).FirstOrDefault().GetAddress(network).ToString();
inputHistoryDetail.Address = address;
}
else
{
inputHistoryDetail.Address = input.ScriptSig.GetSignerAddress(network).ToString();
}
modelItem.Inputs.Add(inputHistoryDetail);
}
foreach (WalletHistoryPaymentData payment in item.Transaction.SentPayments)
{
if (payment.PayToSelf == false)
{
PaymentHistoryDetailModel paymentDetail = new PaymentHistoryDetailModel()
{
Amount = payment.Amount,
DestinationAddress = payment.DestinationAddress,
PayToSelf = payment.PayToSelf
};
modelItem.Payments.Add(paymentDetail);
}
}
}
}
else // handle receive entries
{
if (item.Address.IsChangeAddress())
{
// we don't display transactions sent to self
continue;
}
if (item.Transaction.IsCoinStake.HasValue && item.Transaction.IsCoinStake.Value == true)
{
// We don't show in history transactions that are outputs of staking transactions.
continue;
}
PaymentHistoryDetailModel paymentDetail = new PaymentHistoryDetailModel()
{
Amount = item.Transaction.Amount,
DestinationAddress = item.Transaction.Address,
PayToSelf = true
};
modelItem.Payments.Add(paymentDetail);
foreach (TxIn input in tx.Inputs)
{
InputHistoryDetailModel inputHistoryDetail = new InputHistoryDetailModel()
{
ScriptSig = input.ScriptSig,
Sequence = input.Sequence,
TxId = input.PrevOut.Hash.ToString(),
VOut = input.PrevOut.N,
};
if (input.ScriptSig.GetSigner(network) == null)
{
TxOut prevOutTx = blockRepository.GetTransactionById(input.PrevOut.Hash).Outputs[input.PrevOut.N];
string address = prevOutTx.ScriptPubKey.GetDestinationPublicKeys(network).FirstOrDefault().GetAddress(network).ToString();
inputHistoryDetail.Address = address;
}
else
{
inputHistoryDetail.Address = input.ScriptSig.GetSignerAddress(network).ToString();
}
if (isAddressFilter)
{
if (!isOutputContained)
{
if (!inputHistoryDetail.Address.Contains(request.Address))
{
continue;
}
isInputContained = true;
}
}
modelItem.Inputs.Add(inputHistoryDetail);
}
}
if (isAddressFilter == true && isInputContained == false && isOutputContained == false)
{
continue;
}
transactionItems.Add(modelItem);
}
model.AccountsHistoryModel.Add(new HistoryFilterModel
{
TransactionsHistory = transactionItems,
Name = historyFilter.Account.Name,
CoinType = network.Consensus.CoinType,
HdPath = historyFilter.Account.HdPath
});
}
return(model);
}