#ifndef _ASW_INTERFACE_H_
#define _ASW_INTERFACE_H_

#include "asw/templates/cache.h"
#include "asw/script/object.h"

namespace ASW
{
    namespace Script
    {
        // Represents an interface between the game engine and script code
        class Interface
        {
        protected:

            typedef UTIL::Container<TCHAR>                   StringBuffer;
            typedef ASW::Cache<StringBuffer>                 CacheStrings;
            typedef ASW::Cache<ASW::Script::Parameter::List> CacheParameters;

            CacheStrings    m_clsCacheStrings;
            CacheParameters m_clsCacheParameters;

            // Helper function to cache string data outside script memory to
            // avoid access violations
            template <typename T>
            TCHAR * GetString(const T * ptrString,
                              CacheStrings::ProxyList & refProxy)
            {
                StringBuffer & refBuffer = refProxy.GetNew();
                refBuffer.RemoveAll(false);
                const TCHAR * ptrStringConverted = UTIL::Convert<TCHAR>(ptrString);
                unsigned int uintLength = UTIL::Length(ptrStringConverted) + 1;
                refBuffer.Reserve(uintLength);
                refBuffer.Add(ptrStringConverted, uintLength);
                return refBuffer.ItemRef(0);
            }

        public:
            virtual ~Interface() {}

            virtual void Call(const ASW::Script::Function &) = 0;
            virtual void Call(const ASW::Script::Object &, const ASW::Script::MethodScript &, ASW::Script::Variant &) = 0;
            virtual void Call(const ASW::Script::Object &, const ASW::Script::MethodScript &, const ASW::Script::Parameter &) = 0;
            virtual void Call(const ASW::Script::Object &, const ASW::Script::MethodScript &, const ASW::Script::Parameter &, Variant &) = 0;
            virtual void Call(const ASW::Script::Object &, const ASW::Script::MethodScript &, const ASW::Script::Parameter::Container *, ASW::Script::Parameter::List *, const int) = 0;
            virtual void Register(const ASW::Script::Object &, const TCHAR *) = 0;
            virtual void Unregister(const ASW::Script::Function &) = 0;
            virtual void Unregister(const ASW::Script::MethodScript &) = 0;
            virtual void Unregister(const ASW::Script::Object &) = 0;
        };

        void SetInterface(Interface *);
    }
}

#endif