/*

Copyright (C) 2017-2026 Topological Manifold

This program 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.

This program 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 this program. If not, see <http://www.gnu.org/licenses/>.

*/

#pragma once

#include "chrono.h"

#include <deque>

#include <vector>

namespace ns

{

class Frequency final

{

struct Events final

{

long long sample_number;

double event_count = 0;

explicit Events(const int sample_number)

: sample_number(sample_number)

{

}

};

const Clock::time_point start_time_ = Clock::now();

const int sample_count_;

const double sample_frequency_;

const std::vector<double> window_;

std::deque<Events> deque_;

public:

Frequency(double interval_length, int sample_count);

double calculate();

};

}