ResourceSaver.hpp

// Copyright (C) 2017 Jérôme Leclercq
// This file is part of the "Nazara Engine - Core module"
// For conditions of distribution and use, see copyright notice in Config.hpp

#pragma once

#ifndef NAZARA_RESOURCESAVER_HPP
#define NAZARA_RESOURCESAVER_HPP

#include <Nazara/Core/Enums.hpp>
#include <Nazara/Core/Resource.hpp>
#include <Nazara/Core/ResourceParameters.hpp>
#include <Nazara/Core/String.hpp>
#include <list>
#include <tuple>
#include <type_traits>

namespace Nz
{
    class Stream;

    template<typename Type, typename Parameters>
    class ResourceSaver
    {
        static_assert(std::is_base_of<ResourceParameters, Parameters>::value, "ResourceParameters must be a base of Parameters");

        friend Type;

        public:
            using ExtensionGetter = bool (*)(const String& extension);
            using FormatQuerier = bool (*)(const String& format);
            using FileSaver = bool (*)(const Type& resource, const String& filePath, const Parameters& parameters);
            using StreamSaver = bool (*)(const Type& resource, const String& format, Stream& stream, const Parameters& parameters);

            ResourceSaver() = delete;
            ~ResourceSaver() = delete;

            static bool IsFormatSupported(const String& extension);

            static bool SaveToFile(const Type& resource, const String& filePath, const Parameters& parameters = Parameters());
            static bool SaveToStream(const Type& resource, Stream& stream, const String& format, const Parameters& parameters = Parameters());

            static void RegisterSaver(FormatQuerier formatQuerier, StreamSaver streamSaver, FileSaver fileSaver = nullptr);
            static void UnregisterSaver(FormatQuerier formatQuerier, StreamSaver streamSaver, FileSaver fileSaver = nullptr);

        private:
            using Saver = std::tuple<FormatQuerier, StreamSaver, FileSaver>;
            using SaverList = std::list<Saver>;
    };
}

#include <Nazara/Core/ResourceSaver.inl>

#endif // NAZARA_RESOURCESAVER_HPP