const BtcRawTransactionPtr BtcHelper::TransactionSuccessfull(const int64_t &amount, BtcUnspentOutputs outputs, const std::string &targetAddress, const int32_t &minConfirms)
{
if(amount < 0 || outputs.empty() || targetAddress.empty() || minConfirms < 0)
return BtcRawTransactionPtr();
for(BtcUnspentOutputs::iterator output = outputs.begin(); output != outputs.end(); output++)
{
BtcRawTransactionPtr transaction = WaitGetRawTransaction((*output)->txId);
if(TransactionSuccessfull(amount, transaction, targetAddress, minConfirms))
return transaction;
}
return BtcRawTransactionPtr();
}
BtcRawTransactionPtr BtcHelper::GetDecodedRawTransaction(const BtcTransactionPtr &tx) const
{
if(tx == NULL)
return BtcRawTransactionPtr();
if(!tx->Hex.empty())
return this->modules->btcJson->DecodeRawTransaction(tx->Hex);
return this->modules->btcJson->GetDecodedRawTransaction(tx->TxId);
}
BtcRawTransactionPtr BtcHelper::WaitGetRawTransaction(const std::string &txId, const int32_t &timerMS, int32_t maxAttempts)
{
if(txId.empty())
return BtcRawTransactionPtr();
BtcRawTransactionPtr rawTransaction = BtcRawTransactionPtr();
while(maxAttempts)
{
rawTransaction = GetDecodedRawTransaction(txId);
if(rawTransaction != NULL)
return rawTransaction;
maxAttempts--;
btc::Sleep(timerMS);
}
return rawTransaction;
}
BtcRawTransactionPtr BtcHelper::GetDecodedRawTransaction(const std::string &txId) const
{
if(txId.empty())
return BtcRawTransactionPtr();
// first check transaction database
BtcTransactionPtr tx = this->modules->btcJson->GetTransaction(txId);
if(tx != NULL)
if(!tx->Hex.empty())
return this->modules->btcJson->DecodeRawTransaction(tx->Hex);
// otherwise check block database
// use bitcoind -txindex to keep a complete list of all transactions, otherwise it might not find it if it's too old
// or use 'importaddress' and bitcoind will index all relevant transactions and return them with 'gettransaction'
return this->modules->btcJson->GetDecodedRawTransaction(txId);
}
