/***
    Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: IIOPipeWork.hpp
    Date: 2022-6-20
    Author: Reece
***/
#pragma once

namespace Aurora::IO
{
    struct IIOPipeWork
    {
        /**
         * @brief begins the operation
         * @return
        */
        virtual bool Start() = 0;

        /**
         * @brief terminates the operation
         * @return
        */
        virtual bool End() = 0;

        /**
         * @brief time from the au epoch. see: AuTime::.
         * @return
        */
        virtual AuInt64 GetStartTickMS() = 0;

        /**
         * @brief time from the au epoch. see: AuTime::.
         * @return
        */
        virtual AuInt64 GetLastTickMS() = 0;

        /**
         * @brief quick approximation of normalized bytes / second
         * @return 
        */
        virtual double GetPredictedThroughput() = 0;

        /**
         * @brief bytes written to the stream (this will be one frame behind in the callback routine, if in on buffered data mode)
         * @return 
        */
        virtual AuUInt64 GetBytesProcessed() = 0;

        /**
         * @brief bytes read written to the destination. can be used under any callback to determine interframe progress
         * @return 
        */
        virtual AuUInt64 GetBytesProcessedInterframe() = 0;
    };
}