#ifndef EVALUATOR_H_
#define EVALUATOR_H_
#include "Expression.h"
#include "ValueModel.h"
#include <vector>

namespace core {

	template<class T> class Evaluator
	{
	public:
		typedef std::pair <std::vector<T>, std::vector<T>> Shape;

		static Shape BuildShape (const T&, const T&, const T&, ValueModel<T>*, Expression<T>*);
	};

	template<class T>
	typename Evaluator<T>::Shape Evaluator<T>::BuildShape (const T& min, const T& max, const T& step, ValueModel<T>* v, Expression<T>* e)
	{
		std::vector<T> x,y;
		for (T i=min; i <= max; i+= step)
		{
			v->setValue(i);
			x.push_back(i);
			y.push_back(e->evaluate());
		}

		return Shape(x,y);
	}
}

#endif