/**

 * 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_CONCMDMANAGER_H_

#define _INCLUDE_SOURCEMOD_CONCMDMANAGER_H_

#include "sm_globals.h"

#include "sourcemm_api.h"

#include "ForwardSys.h"

#include "sm_trie.h"

#include "sm_memtable.h"

#include <sh_list.h>

#include <sh_string.h>

#include <IRootConsoleMenu.h>

#include <IAdminSystem.h>

using namespace SourceHook;

enum CmdType

{

	Cmd_Server,

	Cmd_Console,

	Cmd_Admin,

};

struct AdminCmdInfo

{

	AdminCmdInfo()

	{

		cmdGrpId = -1;

		flags = 0;

		eflags = 0;

	}

	int cmdGrpId;			/* index into cmdgroup string table */

	FlagBits flags;			/* default flags */

	FlagBits eflags;		/* effective flags */

};

struct CmdHook

{

	CmdHook()

	{

		pf = NULL;

		pAdmin = NULL;

	}

	IPluginFunction *pf;	/* function hook */

	String helptext;		/* help text */

	AdminCmdInfo *pAdmin;	/* admin requirements, if any */

};

struct ConCmdInfo

{

	ConCmdInfo()

	{

		sourceMod = false;

		pCmd = NULL;

	}

	bool sourceMod;					/**< Determines whether or not concmd was created by a SourceMod plugin */

	ConCommand *pCmd;				/**< Pointer to the command itself */

	List<CmdHook *> srvhooks;		/**< Hooks as a server command */

	List<CmdHook *> conhooks;		/**< Hooks as a console command */

	AdminCmdInfo admin;				/**< Admin info, if any */

};

class ConCmdManager :

	public SMGlobalClass,

	public IRootConsoleCommand,

	public IPluginsListener

{

	friend void CommandCallback();

public:

	ConCmdManager();

	~ConCmdManager();

public: //SMGlobalClass

	void OnSourceModAllInitialized();

	void OnSourceModShutdown();

public: //IPluginsListener

	void OnPluginDestroyed(IPlugin *plugin);

public: //IRootConsoleCommand

	void OnRootConsoleCommand(const char *command, unsigned int argcount);

public:

	bool AddServerCommand(IPluginFunction *pFunction, const char *name, const char *description, int flags);

	bool AddConsoleCommand(IPluginFunction *pFunction, const char *name, const char *description, int flags);

	bool AddAdminCommand(IPluginFunction *pFunction, 

						 const char *name, 

						 const char *group,

						 int adminflags,

						 const char *description, 

						 int flags);

	ResultType DispatchClientCommand(int client, ResultType type);

	void UpdateAdminCmdFlags(const char *cmd, OverrideType type, FlagBits bits);

	bool LookForSourceModCommand(const char *cmd);

	bool CheckCommandAccess(int client, const char *cmd, FlagBits flags);

private:

	void InternalDispatch();

	ResultType RunAdminCommand(ConCmdInfo *pInfo, int client, int args);

	ConCmdInfo *AddOrFindCommand(const char *name, const char *description, int flags);

	void SetCommandClient(int client);

	void AddToCmdList(ConCmdInfo *info);

	void RemoveConCmd(ConCmdInfo *info);

	void RemoveConCmds(List<CmdHook *> &cmdlist, IPluginContext *pContext);

	bool CheckAccess(int client, const char *cmd, AdminCmdInfo *pAdmin);

public:

	inline int GetCommandClient()

	{

		return m_CmdClient;

	}

	inline const List<ConCmdInfo *> & GetCommandList()

	{

		return m_CmdList;

	}

private:

	Trie *m_pCmds;					/* command lookup */

	Trie *m_pCmdGrps;				/* command group lookup */

	List<ConCmdInfo *> m_CmdList;	/* command list */

	int m_CmdClient;				/* current client */

	BaseStringTable m_Strings;		/* string table */

};

extern ConCmdManager g_ConCmds;

#endif // _INCLUDE_SOURCEMOD_CONCMDMANAGER_H_