#ifndef BIQUADSTACK_H
#define BIQUADSTACK_H

#include <vector>
#include "BiQuad.h"

namespace IIR {

	template <typename Scalar> class BiQuadStack {

		std::vector<BiQuad<Scalar>> filters;

	public:

		BiQuadStack() {
			;
		}

		BiQuadStack(const int num) {
			filters.resize(num);
		}

		void resize(const int num) {
			filters.resize(num);
		}

		BiQuad<Scalar>& operator [] (const size_t idx) {
			return filters.at(idx);
		}

		Scalar filter(Scalar val) {
			for (BiQuad<Scalar>& bq : filters) {
				val = bq.filter(val);
			}
			return val;
		}

	};

}

#endif // BIQUADSTACK_H