/**

 * 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_INTERFACE_IPLAYERHELPERS_H_

#define _INCLUDE_SOURCEMOD_INTERFACE_IPLAYERHELPERS_H_

/**

 * @file IPlayerHelpers.h

 * @brief Defines basic helper functions for Half-Life 2 clients

 */

#include <IShareSys.h>

#include <IAdminSystem.h>

#define SMINTERFACE_PLAYERMANAGER_NAME		"IPlayerManager"

#define SMINTERFACE_PLAYERMANAGER_VERSION	1

struct edict_t;

namespace SourceMod

{

	/**

	 * @brief Abstracts some Half-Life 2 and SourceMod properties about clients.

	 */

	class IGamePlayer

	{

	public:

		/**

		 * @brief Returns the player's name.

		 *

		 * @return		String containing the player's name,

		 *				or NULL if unavailable.

		 */

		virtual const char *GetName() =0;

		/**

		 * @brief Returns the player's IP address.

		 *

		 * @return		String containing the player's IP address,

		 *				or NULL if unavailable.

		 */

		virtual const char *GetIPAddress() =0;

		/**

		 * @brief Returns the player's authentication string.

		 *

		 * @return		String containing the player's auth string.

		 *				May be NULL if unavailable.

		 */

		virtual const char *GetAuthString() =0;

		/**

		 * @brief Returns the player's edict_t structure.

		 *

		 * @return		edict_t pointer, or NULL if unavailable.

		 */

		virtual edict_t *GetEdict() =0;

		/**

		 * @brief Returns whether the player is in game (putinserver).

		 *

		 * @return		True if in game, false otherwise.

		 */

		virtual bool IsInGame() =0;

		/**

		 * @brief Returns whether the player is connected.

		 *

		 * Note: If this returns true, all above functions except for

		 * GetAuthString() should return non-NULL results.

		 *

		 * @return		True if connected, false otherwise.

		 */

		virtual bool IsConnected() =0;

		/**

		 * @brief Returns whether the player is a fake client.

		 *

		 * @return		True if a fake client, false otherwise.

		 */

		virtual bool IsFakeClient() =0;

		/**

		 * @brief Returns the client's AdminId, if any.

		 *

		 * @return		AdminId, or INVALID_ADMIN_ID if none.

		 */

		virtual AdminId GetAdminId() =0;

		/**

		 * @brief Sets the client's AdminId.

		 *

		 * @param id	AdminId to set.

		 * @param temp	If true, the id will be invalidated on disconnect.

		 */

		virtual void SetAdminId(AdminId id, bool temp) =0;

	};

	/**

	 * @brief Provides callbacks for important client events.

	 */

	class IClientListener

	{

	public:

	   /**

		* @brief Returns the current client listener version.

		*

		* @return		Client listener version.

		*/

		virtual unsigned int GetClientListenerVersion()

		{

			return SMINTERFACE_PLAYERMANAGER_VERSION;

		}

	public:

		/**

		 * @brief Called when a client requests connection.

		 *

		 * @param client		Index of the client.

		 * @param error			Error buffer for a disconnect reason.

		 * @param maxlength		Maximum length of error buffer.

		 * @return				True to allow client, false to reject.

		 */

		virtual bool InterceptClientConnect(int client, char *error, size_t maxlength)

		{

			return true;

		}

		/**

		 * @brief Called when a client has connected.

		 *

		 * @param client		Index of the client.

		 */

		virtual void OnClientConnected(int client)

		{

		}

		/**

		 * @brief Called when a client is put in server.

		 *

		 * @param client		Index of the client.

		 */

		virtual void OnClientPutInServer(int client)

		{

		}

		/**

		 * @brief Called when a client is disconnecting (not fully disconnected yet).

		 *

		 * @param client		Index of the client.

		 */

		virtual void OnClientDisconnecting(int client)

		{

		}

		/**

		 * @brief Called when a client has fully disconnected.

		 *

		 * @param client		Index of the client.

		 */

		virtual void OnClientDisconnected(int client)

		{

		}

		/**

		 * @brief Called when a client has received authorization.

		 *

		 * @param client		Index of the client.

		 * @param authstring	Authorization string.

		 */

		virtual void OnClientAuthorized(int client, const char *authstring)

		{

		}

	};

	class IPlayerManager : public SMInterface

	{

	public:

		const char *GetInterfaceName()

		{

			return SMINTERFACE_PLAYERMANAGER_NAME;

		}

		unsigned int GetInterfaceVersion()

		{

			return SMINTERFACE_PLAYERMANAGER_VERSION;

		}

	public:

		/**

		 * @brief Adds a client listener.

		 *

		 * @param listener		Pointer to an IClientListener.

		 */

		virtual void AddClientListener(IClientListener *listener) =0;

		/**

		 * @brief Removes a client listener.

		 *

		 * @param listener		Pointer to an IClientListener.

		 */

		virtual void RemoveClientListener(IClientListener *listener) =0;

		/**

		 * @brief Retrieves an IGamePlayer object by its client index.

		 *

		 * Note: This will return a valid object for any player, connected or not.

		 * Note: Client indexes start at 1, not 0.

		 *

		 * @param client		Index of the client.

		 * @return				An IGamePlayer pointer, or NULL if out of range.

		 */

		virtual IGamePlayer *GetGamePlayer(int client) =0;

		/**

		 * @brief Retrieves an IGamePlayer object by its edict_t pointer.

		 *

		 * @param pEdict		Index of the client

		 * @return				An IGamePlayer pointer, or NULL if out of range.

		 */

		virtual IGamePlayer *GetGamePlayer(edict_t *pEdict) =0;

		/**

		 * @brief Returns the maximum number of clients.

		 *

		 * @return				Maximum number of clients.

		 */

		virtual int GetMaxClients() =0;

		/**

		 * @brief Returns the number of players currently connected.

		 *

		 * @return				Current number of connected clients.

		 */

		virtual int GetNumPlayers() =0;

		/**

		 * @brief Returns the client index by its userid.

		 *

		 * @param userid		Userid of the client.

		 * @return				Client index, or 0 if invalid userid passed.

		 */

		virtual int GetClientOfUserId(int userid) =0;

	};

}

#endif //_INCLUDE_SOURCEMOD_INTERFACE_IPLAYERHELPERS_H_