WriteFileHandle.h

#pragma once
 
#include <functional>
 
#include "FileHandle.h"
 
namespace file_manager
{
    class Cache;
 
    class FILE_MANAGER_API WriteFileHandle : public FileHandle
    {
    private:
        class CachingBuffer : public std::filebuf
        {
        private:
            Cache& cache;
            std::filesystem::path filePath;
            std::string cacheData;
            bool isCachingAvailable;
 
        private:
            bool increaseCacheData();
 
        public:
            CachingBuffer(class Cache& cache, const std::filesystem::path& filePath, std::ios_base::openmode mode);
 
            int sync() override;
 
            ~CachingBuffer();
        };
 
    protected:
        WriteFileHandle(const std::filesystem::path& filePath, std::ios_base::openmode mode = std::ios_base::out);
 
    public:
        void write(const std::string& data);
 
        std::ostream& getStream();
 
        virtual ~WriteFileHandle();
 
        friend class FileManager;
    };
}