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#ifndef COMPONENTS_LUA_SERIALIZATION_H
#define COMPONENTS_LUA_SERIALIZATION_H
#include <sol/sol.hpp>
#include <components/esm3/cellref.hpp>
namespace LuaUtil
{
// Note: it can contain \0
using BinaryData = std::string;
class UserdataSerializer
{
public:
virtual ~UserdataSerializer() {}
// Appends serialized sol::userdata to the end of BinaryData.
// Returns false if this type of userdata is not supported by this serializer.
virtual bool serialize(BinaryData&, const sol::userdata&) const = 0;
// Deserializes userdata of type "typeName" from binaryData. Should push the result on stack using
// sol::stack::push. Returns false if this type is not supported by this serializer.
virtual bool deserialize(std::string_view typeName, std::string_view binaryData, lua_State*) const = 0;
protected:
static void append(BinaryData&, std::string_view typeName, const void* data, size_t dataSize);
static constexpr std::string_view sRefNumTypeName = "o";
static void appendRefNum(BinaryData&, ESM::RefNum);
static ESM::RefNum loadRefNum(std::string_view data);
};
// Serializer that can load Lua data from content files and saved games, but doesn't depend on apps/openmw.
// Instead of LObject/GObject (that are defined in apps/openmw) it loads refnums directly as ESM::RefNum.
class BasicSerializer final : public UserdataSerializer
{
public:
BasicSerializer() = default;
explicit BasicSerializer(std::function<int(int)> adjustContentFileIndexFn)
: mAdjustContentFilesIndexFn(std::move(adjustContentFileIndexFn))
{
}
private:
bool serialize(LuaUtil::BinaryData& out, const sol::userdata& data) const override;
bool deserialize(std::string_view typeName, std::string_view binaryData, lua_State* lua) const override;
std::function<int(int)> mAdjustContentFilesIndexFn;
};
BinaryData serialize(const sol::object&, const UserdataSerializer* customSerializer = nullptr);
sol::object deserialize(lua_State* lua, std::string_view binaryData,
const UserdataSerializer* customSerializer = nullptr, bool readOnly = false);
}
#endif // COMPONENTS_LUA_SERIALIZATION_H
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