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

    File: ICompressionStream.hpp
    Date: 2021-7-14
    Author: Reece
***/
#pragma once

namespace Aurora::Compression
{
    class ICompressionStream
    {
    public:
        /// Ingest n bytes from the input stream assigned to the compression object
        virtual AuStreamReadWrittenPair_t Ingest(AuUInt32 bytesFromUnprocessedInputSource) = 0;
   
        /// Limited stream API
        virtual bool ReadByProcessedN     (void * /*opt*/, AuUInt32 minimumProcessed, AuStreamReadWrittenPair_t &pair, bool ingestUntilEOS = true) = 0;
        
        /// Limited stream API
        virtual bool ReadByProcessedN     (void * /*opt*/, AuUInt32 minimumProcessed) = 0;
        
        /// Limited stream API
        virtual bool GoBackByProcessedN   (AuUInt32 offset) = 0;
        
        /// Limited stream API
        virtual bool GoForwardByProcessedN(AuUInt32 offset) = 0;

        /// Compression only
        virtual void Flush() = 0;
    };
}