/* This file is part of Machina.
 * Copyright 2007-2011 David Robillard <http://drobilla.net>
 *
 * Machina 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.
 *
 * Machina 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 Machina.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MACHINA_EVOLVER_HPP
#define MACHINA_EVOLVER_HPP

#include "eugene/GAImpl.hpp"
#include "machina/types.hpp"
#include "raul/Thread.hpp"
#include "raul/TimeStamp.hpp"

#include "Schrodinbit.hpp"

namespace Eugene {
template<typename G>
class HybridMutation;
}

namespace Machina {

class Machine;
class Problem;

class Evolver
	: public Raul::Thread
{
public:
	Evolver(Raul::TimeUnit unit,
	        const string&  target_midi,
	        SPtr<Machine>  seed);

	void seed(SPtr<Machine> parent);
	bool improvement() { return _improvement; }

	SPtr<const Machine> best() { return _ga->best(); }

	typedef Eugene::GAImpl<Machine> MachinaGA;

private:
	void _run();

	SPtr<MachinaGA> _ga;
	SPtr<Problem>   _problem;
	float           _seed_fitness;
	Schrodinbit     _improvement;
};

} // namespace Machina

#endif // MACHINA_EVOLVER_HPP