/**
 * vim: set ts=4 :
 * ================================================================
 * SourceMod
 * Copyright (C) 2004-2007 AlliedModders LLC.  All rights reserved.
 * ================================================================
 *
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of the GNU General Public License, 
 * version 3.0, as published by the Free Software Foundation.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * As a special exception, AlliedModders LLC gives you permission to 
 * link the code of this program (as well as its derivative works) to 
 * "Half-Life 2," the "Source Engine," the "SourcePawn JIT," and any 
 * Game MODs that run on software by the Valve Corporation.  You must 
 * obey the GNU General Public License in all respects for all other 
 * code used. Additionally, AlliedModders LLC grants this exception 
 * to all derivative works. AlliedModders LLC defines further 
 * exceptions, found in LICENSE.txt (as of this writing, version 
 * JULY-31-2007), or <http://www.sourcemod.net/license.php>.
 *
 * Version: $Id$
 */

#ifndef _INCLUDE_SOURCEMOD_SHARESYSTEM_H_
#define _INCLUDE_SOURCEMOD_SHARESYSTEM_H_

#include <IShareSys.h>
#include <IHandleSys.h>
#include <sh_list.h>
#include "sm_globals.h"
#include "sourcemod.h"

using namespace SourceHook;

namespace SourceMod
{
	struct IdentityToken_t
	{
		Handle_t ident;
		void *ptr;
		IdentityType_t type;
	};
};

struct IfaceInfo
{
	SMInterface *iface;
	IExtension *owner;
};

class ShareSystem : 
	public IShareSys,
	public SMGlobalClass,
	public IHandleTypeDispatch
{
public:
	ShareSystem();
public: //IShareSys
	bool AddInterface(IExtension *myself, SMInterface *pIface);
	bool RequestInterface(const char *iface_name, 
		unsigned int iface_vers,
		IExtension *myself,
		SMInterface **pIface);
	void AddNatives(IExtension *myself, const sp_nativeinfo_t *natives);
	IdentityType_t CreateIdentType(const char *name);
	IdentityType_t FindIdentType(const char *name);
	IdentityToken_t *CreateIdentity(IdentityType_t type, void *ptr);
	void DestroyIdentType(IdentityType_t type);
	void DestroyIdentity(IdentityToken_t *identity);
	void AddDependency(IExtension *myself, const char *filename, bool require, bool autoload);
public: //SMGlobalClass
	/* Pre-empt in case anything tries to register idents early */
	void OnSourceModStartup(bool late);
	void OnSourceModShutdown();
public: //IHandleTypeDispatch
	void OnHandleDestroy(HandleType_t type, void *object);
public:
	IdentityToken_t *CreateCoreIdentity();
	void RemoveInterfaces(IExtension *pExtension);
public:
	inline IdentityToken_t *GetIdentRoot()
	{
		return &m_IdentRoot;
	}
private:
	List<IfaceInfo> m_Interfaces;
	HandleType_t m_TypeRoot;
	IdentityToken_t m_IdentRoot;
	HandleType_t m_IfaceType;
	IdentityType_t m_CoreType;
};

extern ShareSystem g_ShareSys;

#endif //_INCLUDE_SOURCEMOD_SHARESYSTEM_H_