ReadFileHandle.h

#pragma once
 
#include <functional>
#include <sstream>
 
#include "FileHandle.h"
 
namespace file_manager
{
    class FILE_MANAGER_API ReadFileHandle : public FileHandle
    {
    private:
        class ReadOnlyBuffer : public std::stringbuf
        {
        public:
            ReadOnlyBuffer(std::string_view view);
        };
 
    private:
        std::string data;
        std::unique_ptr<ReadOnlyBuffer> buffer;
 
    protected:
        ReadFileHandle(const std::filesystem::path& filePath, std::ios_base::openmode mode = std::ios_base::in);
 
    public:
        const std::string& readAllData();
 
        std::streamsize readSome(std::string& outData, std::streamsize count, bool shrinkOutData = true, bool resizeOutData = true);
 
        std::istream& getStream();
 
        virtual ~ReadFileHandle();
 
        friend class FileManager;
    };
}