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/*
This file is part of cpp-ethereum.
cpp-ethereum is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
cpp-ethereum 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file NatspecHandler.h
* @author Lefteris Karapetsas <lefteris@ethdev.com>
* @date 2015
*/
#pragma once
#pragma warning(push)
#pragma warning(disable: 4100 4267)
#include <leveldb/db.h>
#pragma warning(pop)
#include <json/json.h>
#include <libdevcore/FixedHash.h>
#include "Context.h"
namespace ldb = leveldb;
class NatspecHandler: public NatSpecFace
{
public:
NatspecHandler();
~NatspecHandler();
/// Stores locally in a levelDB a key value pair of contract code hash to natspec documentation
void add(dev::h256 const& _contractHash, std::string const& _doc);
/// Retrieves the natspec documentation as a string given a contract code hash
std::string retrieve(dev::h256 const& _contractHash) const override;
/// Given a json natspec string and the transaction data return the user notice
std::string getUserNotice(std::string const& json, const dev::bytes& _transactionData);
/// Given a contract code hash and the transaction's data retrieve the natspec documention's
/// user notice for that transaction.
/// @returns The user notice or an empty string if no natspec for the contract exists
/// or if the existing natspec does not document the @c _methodName
std::string getUserNotice(dev::h256 const& _contractHash, dev::bytes const& _transactionDacta);
private:
ldb::ReadOptions m_readOptions;
ldb::WriteOptions m_writeOptions;
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ldb::DB* m_db = nullptr;
Json::Reader m_reader;
};