// Copyright (c) 2012-2015, The CryptoNote developers, The Bytecoin developers
//
// This file is part of Bytecoin.
//
// Bytecoin is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Bytecoin is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Bytecoin.  If not, see <http://www.gnu.org/licenses/>.

#include "CryptoNoteCore/CryptoNoteBasic.h"
#include "ITransaction.h"

namespace CryptoNote {

bool checkInputsKeyimagesDiff(const CryptoNote::TransactionPrefix& tx);

// TransactionInput helper functions
size_t getRequiredSignaturesCount(const TransactionInput& in);
uint64_t getTransactionInputAmount(const TransactionInput& in);
TransactionTypes::InputType getTransactionInputType(const TransactionInput& in);
const TransactionInput& getInputChecked(const CryptoNote::TransactionPrefix& transaction, size_t index);
const TransactionInput& getInputChecked(const CryptoNote::TransactionPrefix& transaction, size_t index, TransactionTypes::InputType type);

bool isOutToKey(const Crypto::PublicKey& spendPublicKey, const Crypto::PublicKey& outKey, const Crypto::KeyDerivation& derivation, size_t keyIndex);

// TransactionOutput helper functions
TransactionTypes::OutputType getTransactionOutputType(const TransactionOutputTarget& out);
const TransactionOutput& getOutputChecked(const CryptoNote::TransactionPrefix& transaction, size_t index);
const TransactionOutput& getOutputChecked(const CryptoNote::TransactionPrefix& transaction, size_t index, TransactionTypes::OutputType type);

bool findOutputsToAccount(const CryptoNote::TransactionPrefix& transaction, const AccountPublicAddress& addr,
        const Crypto::SecretKey& viewSecretKey, std::vector<uint32_t>& out, uint64_t& amount);

} //namespace CryptoNote