/**

 * vim: set ts=4 :

 * =============================================================================

 * SourceMod SDKTools Extension

 * Copyright (C) 2004-2008 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_OUTPUT_H_

#define _INCLUDE_SOURCEMOD_OUTPUT_H_

#include <jit/jit_helpers.h>

#include <jit/x86/x86_macros.h>

#include "sh_list.h"

#include "sh_stack.h"

#include "sm_trie_tpl.h"

#include "detours.h"

extern ISourcePawnEngine *spengine;

struct OutputNameStruct;

/**

 * This is a function specific hook that corresponds to an entity classname

 * and outputname. There can be many of these for each classname/output combo

 */

struct omg_hooks 

{

	int entity_filter; // if not -1 is an entity signature

	int entity_index;

	bool only_once;

	IPluginFunction *pf;

	OutputNameStruct *m_parent;

	bool in_use;

	bool delete_me;

};

/**

 * This represents an output belonging to a specific classname

 */

struct OutputNameStruct

{

	SourceHook::List<omg_hooks *> hooks;

	char Name[50];

};

/** 

 * This represents an entity classname

 */

struct ClassNameStruct

{

	//Trie mapping outputname to a OutputNameStruct

	//KTrie<OutputNameStruct *> OutputList;

	IBasicTrie *OutputList;

	ClassNameStruct()

	{

		OutputList = adtfactory->CreateBasicTrie();

	}

	~ClassNameStruct()

	{

		OutputList->Destroy();

	}

};

class EntityOutputManager : public IPluginsListener

{

public:

	EntityOutputManager();

	~EntityOutputManager();

public:

	void Init();

	bool IsEnabled();

	void FireEventDetour(void *pOutput, CBaseEntity *pActivator, CBaseEntity *pCaller, float fDelay);

	void OnPluginDestroyed(IPlugin *plugin);

	OutputNameStruct *FindOutputPointer(const char *classname, const char *outputname, bool create);

	void CleanUpHook(omg_hooks *hook);

	omg_hooks *NewHook();

	void OnHookAdded();

	void OnHookRemoved();

private:

	bool enabled;

	// Patch/unpatch the server dll

	void InitFireEventDetour();

	void ShutdownFireEventDetour();

	bool is_detoured;

	//These create/delete the allocated memory and write into it

	bool CreateFireEventDetour();

	void DeleteFireEventDetour();

	const char *FindOutputName(void *pOutput, CBaseEntity *pCaller);

	edict_t *BaseHandleToEdict(CBaseHandle &hndl);

	//Maps CEntityOutput * to a OutputNameStruct

	IBasicTrie *EntityOutputs;

	// Maps classname to a ClassNameStruct

	IBasicTrie *ClassNames;

	SourceHook::CStack<omg_hooks *> FreeHooks; //Stores hook pointers to avoid calls to new

	int HookCount;

	patch_t info_restore;

	void *info_address;

	void *info_callback;

};

void TempDetour(void *pOutput, CBaseEntity *pActivator, CBaseEntity *pCaller, float fDelay);

extern EntityOutputManager g_OutputManager;

extern sp_nativeinfo_t g_EntOutputNatives[];

#endif //_INCLUDE_SOURCEMOD_OUTPUT_H_