/******************************************************************************
 * Icinga 2                                                                   *
 * Copyright (C) 2012-2017 Icinga Development Team (https://www.icinga.com/)  *
 *                                                                            *
 * This program 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 2             *
 * of the License, or (at your option) any later version.                     *
 *                                                                            *
 * This program 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 this program; if not, write to the Free Software Foundation     *
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.             *
 ******************************************************************************/

#ifndef COLUMN_H
#define COLUMN_H

#include "livestatus/i2-livestatus.hpp"
#include "base/value.hpp"
#include <boost/function.hpp>

using namespace icinga;

namespace icinga
{

enum LivestatusGroupByType {
	LivestatusGroupByNone,
	LivestatusGroupByHostGroup,
	LivestatusGroupByServiceGroup
};

class I2_LIVESTATUS_API Column
{
public:
	typedef boost::function<Value (const Value&)> ValueAccessor;
	typedef boost::function<Value (const Value&, LivestatusGroupByType, const Object::Ptr&)> ObjectAccessor;

	Column(const ValueAccessor& valueAccessor, const ObjectAccessor& objectAccessor);

	Value ExtractValue(const Value& urow, LivestatusGroupByType groupByType = LivestatusGroupByNone, const Object::Ptr& groupByObject = Empty) const;

private:
	ValueAccessor m_ValueAccessor;
	ObjectAccessor m_ObjectAccessor;
};

}

#endif /* COLUMN_H */