AuroraRuntime/Include/Aurora/Time/Stopwatch.hpp

/***
    Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: Stopwatch.hpp
    Date: 2021-6-10
    Author: Reece
***/
#pragma once

#include "StaticClocksDirect.hpp"
#include "StaticClocksClasses.hpp"

namespace Aurora::Time
{
    template <typename DefaultClock_t = ClockSteady>
    struct Stopwatch
    {
        inline Stopwatch()
        {
            Start();
        }

        inline ~Stopwatch()
        {

        }

        inline void Start()
        {
            this->qwStart_ = GetTimeInNanosecond();
        }

        inline void Reset()
        {
            this->qwStart_ = GetTimeInNanosecond();
            this->qwEnd_ = 0;
        }

        inline AuUInt64 EndNS()
        {
            if (!this->qwEnd_)
            {
                this->qwEnd_ = GetTimeInNanosecond();
            }

            return this->qwEnd_ - this->qwStart_;
        }

        inline AuUInt64 EndMS()
        {
            if (!this->qwEnd_)
            {
                this->qwEnd_ = GetTimeInNanosecond();
            }

            return AuNSToMS<AuUInt64>(this->qwEnd_ - this->qwStart_);
        }

    private:
        AuUInt64 qwStart_ {};
        AuUInt64 qwEnd_ {};

        inline AuUInt64 GetTimeInNanosecond()
        {
            return Clock<DefaultClock_t>::GetCurrentTimeNS();
        }
    };
}