/*
* Decompose CWallet transaction to model transaction records.
*/
QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *wallet, const CWalletTx &wtx)
{
QList<TransactionRecord> parts;
int64 nTime = wtx.GetTxTime();
int64 nCredit = wtx.GetCredit(true);
int64 nDebit = wtx.GetDebit();
int64 nNet = nCredit - nDebit;
uint256 hash = wtx.GetHash();
std::map<std::string, std::string> mapValue = wtx.mapValue;
const bool combineOutputs = (wtx.cUnit == 'S');
if (wtx.IsCoinStake()) // ppcoin: coinstake transaction
{
parts.append(TransactionRecord(hash, nTime, TransactionRecord::StakeMint, "", -nDebit, wtx.GetValueOut()));
}
else if (nNet > 0 || wtx.IsCoinBase())
{
//
// Credit
//
QMap<CScript, TransactionRecord*> outputParts;
BOOST_FOREACH(const CTxOut& txout, wtx.vout)
{
if(wallet->IsMine(txout))
{
TransactionRecord sub(hash, nTime);
CTxDestination address;
sub.idx = parts.size(); // sequence number
sub.credit = txout.nValue;
if (ExtractDestination(txout.scriptPubKey, address) && IsMine(*wallet, address))
{
if (wtx.IsUnpark())
sub.type = TransactionRecord::Unpark;
else // Received by Bitcoin Address
sub.type = TransactionRecord::RecvWithAddress;
sub.address = CBitcoinAddress(address, wtx.cUnit).ToString();
}
else
{
// Received by IP connection (deprecated features), or a multisignature or other non-simple transaction
sub.type = TransactionRecord::RecvFromOther;
sub.address = mapValue["from"];
}
if (wtx.IsCoinBase())
{
// Generated
sub.type = TransactionRecord::Generated;
}
if (combineOutputs)
{
QMap<CScript, TransactionRecord*>::const_iterator it = outputParts.find(txout.scriptPubKey);
if (it != outputParts.end())
{
TransactionRecord& previous = *it.value();
previous.credit += sub.credit;
continue;
}
}
parts.append(sub);
if (combineOutputs)
outputParts[txout.scriptPubKey] = &parts.back();
}
}
}
