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// Copyright (c) 2017 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_WALLET_FEEBUMPER_H
#define BITCOIN_WALLET_FEEBUMPER_H
#include <primitives/transaction.h>
class CWallet;
class CWalletTx;
class uint256;
enum class BumpFeeResult
{
OK,
INVALID_ADDRESS_OR_KEY,
INVALID_REQUEST,
INVALID_PARAMETER,
WALLET_ERROR,
MISC_ERROR,
};
class CFeeBumper
{
public:
CFeeBumper(const CWallet *pWalletIn, const uint256 txidIn, int newConfirmTarget, bool specifiedConfirmTarget, CAmount totalFee, bool newTxReplaceable);
BumpFeeResult getResult() const { return currentResult; }
const std::vector<std::string>& getErrors() const { return vErrors; }
CAmount getOldFee() const { return nOldFee; }
CAmount getNewFee() const { return nNewFee; }
uint256 getBumpedTxId() const { return bumpedTxid; }
/* signs the new transaction,
* returns false if the tx couldn't be found or if it was
* impossible to create the signature(s)
*/
bool signTransaction(CWallet *pWallet);
/* commits the fee bump,
* returns true, in case of CWallet::CommitTransaction was successful
* but, eventually sets vErrors if the tx could not be added to the mempool (will try later)
* or if the old transaction could not be marked as replaced
*/
bool commit(CWallet *pWalletNonConst);
private:
bool preconditionChecks(const CWallet *pWallet, const CWalletTx& wtx);
const uint256 txid;
uint256 bumpedTxid;
CMutableTransaction mtx;
std::vector<std::string> vErrors;
BumpFeeResult currentResult;
CAmount nOldFee;
CAmount nNewFee;
};
#endif // BITCOIN_WALLET_FEEBUMPER_H
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