#pragma once

#include <psemek/audio/constants.hpp>

#include <cstdint>
#include <cmath>

namespace psemek::audio
{

	struct duration
	{
		duration()
			: samples_{0}
		{}

		duration(std::int64_t samples)
			: samples_{samples}
		{}

		duration(std::size_t samples)
			: samples_{samples}
		{}

		duration(float seconds)
			: samples_{seconds_to_samples(seconds)}
		{}

		duration(duration const & other) = default;

		float seconds() const
		{
			return samples_to_seconds(samples_);
		}

		std::int64_t samples() const
		{
			return samples_;
		}

		duration & operator += (duration const & other)
		{
			samples_ += other.samples_;
			return *this;
		}

		duration & operator -= (duration const & other)
		{
			samples_ -= other.samples_;
			return *this;
		}

		friend duration operator + (duration const & d1, duration const & d2)
		{
			return duration{d1.samples() + d2.samples()};
		}

		friend duration operator - (duration const & d1, duration const & d2)
		{
			return duration{d1.samples() - d2.samples()};
		}

	private:
		std::int64_t samples_;
	};

}