#ifndef DELAY_H
#define DELAY_H

#include <cstdint>
#include <vector>

template <typename T> class Delay {

private:

	size_t size;

	/** up to "size" elements */
	std::vector<T> values;

public:

	/** ctor */
	Delay(const int size) : size(size) {;}

	/** add a new value */
	void add(const T val) {

		// add new value
		values.push_back(val);

		// remove old ones
		while(values.size() > size) {
			values.erase(values.begin());
		}

	}

	/** get the delayed value */
	T get() const {
		return values.front();
	}

	/** delay output valid? */
	bool isValid() const {
		return values.size() == size;
	}


};

#endif // DELAY_H