#pragma once

#include "tl/detail/prologue.h"
#include <EASTL/chrono.h>

namespace tl
{
using namespace eastl;


namespace chrono
{

using namespace eastl::chrono;

template <typename Clock>
class TL_API chrono final
{
public:
	//! Reset the internal time stamp. If you specify an elapsed time offset it will affect directly to getElapsed.
	void reset(typename Clock::duration elapsed_offset = Clock::duration::zero()) noexcept
	{
		m_start_time_point = Clock::now() + elapsed_offset;
	}

	//! Return the time passed between the last Reset call and now.
	typename Clock::duration get_elapsed() const noexcept
	{
		return Clock::now() - m_start_time_point;
	}

	//! Return the time passed between the last Reset call and now and then Reset the Clock.
	typename Clock::duration get_elapsed_and_reset() noexcept
	{
		auto now = Clock::now();
		auto d = now - m_start_time_point;
		m_start_time_point = now;
		return d;
	}

private:
	typename Clock::time_point m_start_time_point = Clock::now();
};

using system_chrono = chrono<eastl::chrono::system_clock>;
using high_resolution_chrono = chrono<eastl::chrono::high_resolution_clock>;

}
}