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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;
class CCoinControl;
enum class FeeEstimateMode;
namespace feebumper {
enum class Result
{
OK,
INVALID_ADDRESS_OR_KEY,
INVALID_REQUEST,
INVALID_PARAMETER,
WALLET_ERROR,
MISC_ERROR,
};
class FeeBumper
{
public:
FeeBumper(const CWallet *wallet, const uint256 txid_in, const CCoinControl& coin_control, CAmount total_fee);
Result getResult() const { return current_result; }
const std::vector<std::string>& getErrors() const { return errors; }
CAmount getOldFee() const { return old_fee; }
CAmount getNewFee() const { return new_fee; }
uint256 getBumpedTxId() const { return bumped_txid; }
/* 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 *wallet);
/* commits the fee bump,
* returns true, in case of CWallet::CommitTransaction was successful
* but, eventually sets errors 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 *wallet);
private:
bool preconditionChecks(const CWallet *wallet, const CWalletTx& wtx);
const uint256 txid;
uint256 bumped_txid;
CMutableTransaction mtx;
std::vector<std::string> errors;
Result current_result;
CAmount old_fee;
CAmount new_fee;
};
} // namespace feebumper
#endif // BITCOIN_WALLET_FEEBUMPER_H
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