/*******************************************************************************
 * Copyright (c) 2025, Jan Koester jan.koester@gmx.net
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 * Neither the name of the <organization> nor the
 *      names of its contributors may be used to endorse or promote products
 *      derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *******************************************************************************/

#include <fstream>

#ifdef Windows
#define WIN32_LEAN_AND_MEAN
#include <wtypes.h>
#endif

#include "../backend.h"
#include "../authdb.h"

#pragma once

#ifdef Windows
#define VISIBILITY __declspec(dllexport)
#else
#define VISIBILITY __attribute__((visibility("default")))
#endif

namespace authdb {
    class VISIBILITY File : public AuthBackendApi {
    public:
        File(const char *path,size_t version, const char *domain);
        virtual ~File();
        void write(const unsigned char *dest,size_t destsize);
        void read(char unsigned *src,size_t srcsize);

        void lock();
        void unlock();

        void setPos(size_t pos);
        size_t getPos();

        size_t end();

        size_t getRevesion();
        void newRevesion();

        void vacuum();
        void purge() override;
    private:
        std::string  _filePath;
        std::string  _lockFile;
        
#ifdef Windows
        HANDLE           _LockDes;
		HANDLE           _FileDes;
#else
        int              _LockDes;
        int              _FileDes;
#endif
    };
};
