luaMessageBuilder.h

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/*******************************************************************************
** Copyright (c) 2021 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/



#pragma once


#include <vrfLua/vrfLuaDefines.h>
#include <luabind/luabind.hpp>
#include <unordered_map>
#include "vrftasks/vrfObjectMessageTypeTemplate.h"

class DtAdminContent;
class DtVrfObjectMessage;

class DT_DLL_vrfLua DtLuaMessageBuilder
{
private:
   DtLuaMessageBuilder(const DtLuaMessageBuilder& other);
   DtLuaMessageBuilder& operator=(const DtLuaMessageBuilder& other);
public:
   typedef DtAdminContent*(*luaTableToAdminContentFcn)(const luabind::object& messageContents);
   typedef bool(*adminContentToLuaTableFcn)(const DtAdminContent*, luabind::object& luaTable);

   DtLuaMessageBuilder();
   virtual ~DtLuaMessageBuilder();

   virtual void registerAdminContentType(DtAdminContentMessageType type, luaTableToAdminContentFcn toAcFcn, adminContentToLuaTableFcn toTableFcn);

   virtual DtVrfObjectMessage* createMessageFromContents(const std::string& messageType, const luabind::object& messageContents) const;
   virtual bool convertMessageToLua(const DtVrfObjectMessage* message, std::string& messageType, luabind::object& messageContents) const;

   virtual void registerDefaultMessages();

   virtual DtAdminContentMessageType adminTypeForString(const std::string& typeString) const;

   static void setInstance(DtLuaMessageBuilder* mb);
   static const DtLuaMessageBuilder* instance();

   static DtLuaMessageBuilder* create();

protected:
   std::unordered_map<std::string, adminContentToLuaTableFcn> myAdminContentToLuaTableFunctions;
   std::unordered_map<std::string, luaTableToAdminContentFcn> myLuaTableToAdminContentFunctions;

   static DtLuaMessageBuilder* theLuaMessageBuilder;
};