/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          http://www.mrpt.org/                          |
   |                                                                        |
   | Copyright (c) 2005-2019, Individual contributors, see AUTHORS file     |
   | See: http://www.mrpt.org/Authors - All rights reserved.                |
   | Released under BSD License. See details in http://www.mrpt.org/License |
   +------------------------------------------------------------------------+ */

#pragma once

#include <mrpt/obs/CActionCollection.h>
#include <mrpt/obs/CSensoryFrame.h>
#include <mrpt/obs/CObservation.h>
#include <mrpt/graphs/CNetworkOfPoses.h>

#include "CRegistrationDeciderOrOptimizer.h"

namespace mrpt::graphslam::optimizers
{
/**\brief Interface for implementing graphSLAM optimizer classes.
 *
 * Class should provide a generic interface from which real optimizers should
 * inherit so that they abide to the necessary method calls used in the
 * CGraphSlamEngine class. For an example of inheriting from this class see
 * CLevMarqGSO.
 *
 * \note As a naming convention, all the implemented graphslam optimizer classes
 * are suffixed with the GSO acronym.
 *
 * \ingroup mrpt_graphslam_grp
 */
template <class GRAPH_t = typename mrpt::graphs::CNetworkOfPoses2DInf>
class CGraphSlamOptimizer
	: public virtual mrpt::graphslam::CRegistrationDeciderOrOptimizer<GRAPH_t>
{
   public:
	using constraint_t = typename GRAPH_t::constraint_t;
	using pose_t = typename GRAPH_t::constraint_t::type_value;

	CGraphSlamOptimizer() = default;
	~CGraphSlamOptimizer() override = default;
	/**\brief Used by the caller to query for possible full graph optimization
	 * on the latest optimizer run
	 */
	virtual bool justFullyOptimizedGraph() const { return false; }

   protected:
	/**\brief method called for optimizing the underlying graph.
	 */
	virtual void optimizeGraph() = 0;
};
}  // namespace mrpt::graphslam::optimizers
