Bigfoot/Bigfoot/Libs/Engine/Include/Engine/Asset/AssetConcepts.hpp

/*********************************************************************
 * \file   AssetConcepts.hpp
 *
 * \author Romain BOULLARD
 * \date   August 2026
 *********************************************************************/
#ifndef BIGFOOT_ENGINE_ASSET_ASSETCONCEPTS_HPP
#define BIGFOOT_ENGINE_ASSET_ASSETCONCEPTS_HPP
#include <Engine/Asset/AssetTypeID.hpp>

#include <System/UUID/UUID.hpp>

#include <flatbuffers/minireflect.h>

#include <concepts>

namespace Bigfoot
{
class AssetBase;

/**
 * The traits struct passed to Asset<TRAITS> (e.g. AssetATraits).
 * Must name the generated flatbuffers table type for the asset.
 */
template<class TRAITS>
concept AssetTraits = requires {
    typename TRAITS::FLAT;
    typename TRAITS::FLAT::NativeTableType;
    { TRAITS::FLAT::GetFullyQualifiedName() } -> std::convertible_to<const char*>;
    { TRAITS::FLAT::MiniReflectTypeTable() } -> std::convertible_to<const flatbuffers::TypeTable*>;
};

/**
 * A concrete Asset type (e.g. AssetA), usable with AssetContainer, AssetLibrary and References.
 */
template<class ASSET>
concept AssetType = std::derived_from<ASSET, AssetBase> && !std::same_as<ASSET, AssetBase> &&
                    requires(const ASSET& p_asset) {
                        { ASSET::GetTypeID() } -> std::convertible_to<AssetTypeID>;
                        { p_asset.GetHeader().uuid } -> std::convertible_to<UUID>;
                    };
}   // namespace Bigfoot
#endif