/*
	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 TestHelper.h
 * @author Marko Simovic <markobarko@gmail.com>
 * @date 2014
 */

#pragma once

#include <functional>
#include <boost/test/unit_test.hpp>
#include "JsonSpiritHeaders.h"
#include <libethereum/State.h>
#include <libevm/ExtVMFace.h>

namespace dev
{
namespace eth
{

class Client;

void mine(Client& c, int numBlocks);
void connectClients(Client& c1, Client& c2);

}

namespace test
{

struct ValueTooLarge: virtual Exception {};
bigint const c_max256plus1 = bigint(1) << 256;

class ImportTest
{
public:
	ImportTest() = default;
	ImportTest(json_spirit::mObject& _o, bool isFiller);

	// imports
	void importEnv(json_spirit::mObject& _o);
	void importState(json_spirit::mObject& _o, eth::State& _state);
	void importTransaction(json_spirit::mObject& _o);
	void exportTest(bytes _output, eth::State& _statePost);

	eth::State m_statePre;
	eth::State m_statePost;
	eth::ExtVMFace m_environment;
	eth::Transaction m_transaction;

private:
	json_spirit::mObject& m_TestObject;
};

// helping functions
u256 toInt(json_spirit::mValue const& _v);
byte toByte(json_spirit::mValue const& _v);
bytes importCode(json_spirit::mObject& _o);
bytes importData(json_spirit::mObject& _o);
bytes importByteArray(std::string const& _str);
eth::LogEntries importLog(json_spirit::mArray& _o);
json_spirit::mArray exportLog(eth::LogEntries _logs);
void checkOutput(bytes const& _output, json_spirit::mObject& _o);
void checkStorage(std::map<u256, u256> _expectedStore, std::map<u256, u256> _resultStore, Address _expectedAddr);
void checkLog(eth::LogEntries _resultLogs, eth::LogEntries _expectedLogs);
void checkCallCreates(eth::Transactions _resultCallCreates, eth::Transactions _expectedCallCreates);

void executeTests(const std::string& _name, const std::string& _testPathAppendix, std::function<void(json_spirit::mValue&, bool)> doTests);
std::string getTestPath();
void userDefinedTest(std::string testTypeFlag, std::function<void(json_spirit::mValue&, bool)> doTests);
void processCommandLineOptions();
eth::LastHashes lastHashes(u256 _currentBlockNumber);

template<typename mapType>
void checkAddresses(mapType& _expectedAddrs, mapType& _resultAddrs)
{
	for (auto& resultPair : _resultAddrs)
	{
		auto& resultAddr = resultPair.first;
		auto expectedAddrIt = _expectedAddrs.find(resultAddr);
		if (expectedAddrIt == _expectedAddrs.end())
			BOOST_ERROR("Missing result address " << resultAddr);
	}
	BOOST_CHECK(_expectedAddrs == _resultAddrs);
}

}
}