/**

 * vim: set ts=4 :

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

 * SourceMod (C)2004-2007 AlliedModders LLC.  All rights reserved.

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

 *

 * This file is part of the SourceMod/SourcePawn SDK.

 *

 * 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: $Id$

 */

#if defined _helpers_included

 #endinput

#endif

#define _helpers_included

/**

 * Formats a user's info as log text.  This is usually not needed because

 * %L can be used to auto-format client information into a string.

 *

 * @param client		Client index.

 * @param buffer		Buffer for text.

 * @param maxlength		Maximum length of text.

 */

stock FormatUserLogText(client, String:buffer[], maxlength)

{

	decl String:auth[32];

	decl String:name[40];

	new userid = GetClientUserId(client);

	if (!GetClientAuthString(client, auth, sizeof(auth)))

	{

		strcopy(auth, sizeof(auth), "UNKNOWN");

	}

	if (!GetClientName(client, name, sizeof(name)))

	{

		strcopy(name, sizeof(name), "UNKNOWN");

	}

	/** Currently, no team stuff ... */

	Format(buffer, maxlength, "\"%s<%d><%s><>\"", name, userid, auth);

}

/**

 * Returns plugin handle from plugin filename.

 *

 * @param filename		Filename of the plugin to search for.

 * @return				Handle to plugin if found, INVALID_HANDLE otherwise.

 */

stock Handle:FindPluginByFile(const String:filename[])

{

	decl String:buffer[256];

	new Handle:iter = GetPluginIterator();

	new Handle:pl;

	while (MorePlugins(iter))

	{

		pl = ReadPlugin(iter);

		GetPluginFilename(pl, buffer, sizeof(buffer));

		if (strcmp(buffer, filename, false) == 0)

		{

			CloseHandle(iter);

			return pl;

		}

	}

	CloseHandle(iter);

	return INVALID_HANDLE;

}

/**

 * Searches for clients that match an input string.

 *

 * Allowed patterns: 

 *  1) #<userid> or #<exact name>

 *  2) <partial or full name>

 *

 * @param pattern		Pattern to search for.

 * @param clients		Array to store matching clients in.

 * @param maxClients	Maximum clients in the array.

 * @return				Number of clients found.

 */

stock SearchForClients(const String:pattern[], clients[], maxClients)

{

	new maxclients = GetMaxClients();

	new total = 0;

	if (maxClients == 0)

	{

		return 0;

	}

	if (pattern[0] == '#')

	{

		new input = StringToInt(pattern[1]);

		if (!input)

		{

			decl String:name[65]

			for (new i=1; i<=maxclients; i++)

			{

				if (!IsClientInGame(i))

				{

					continue;

				}

				GetClientName(i, name, sizeof(name));

				if (strcmp(name, pattern, false) == 0)

				{

					clients[0] = i;

					return 1;

				}

			}

		} else {

			new client = GetClientOfUserId(input);

			if (client)

			{

				clients[0] = client;

				return 1;

			}

		}

	}

	decl String:name[65]

	for (new i=1; i<=maxclients; i++)

	{

		if (!IsClientInGame(i))

		{

			continue;

		}

		GetClientName(i, name, sizeof(name));

		if (StrContains(name, pattern, false) != -1)

		{

			clients[total++] = i;

			if (total >= maxClients)

			{

				break;

			}

		}

	}

	return total;

}

/**

 * Wraps SearchForClients and handles producing error messages for

 * bad targets.

 *

 * @param client	Client who issued command

 * @param target	Client's target argument

 * @param nobots	Optional. Set to true if bots should NOT be targetted

 * @param immunity	Optional. Set to false to ignore target immunity.

 * @return		Index of target client, or -1 on error.

 */

stock FindTarget(client, const String:target[], bool:nobots = false, bool:immunity = true)

{

	new clients[2];

	new numClients = SearchForClients(target, clients, 2);

	if (numClients == 0)

	{

		ReplyToCommand(client, "[SM] %t", "No matching client");

		return -1;

	}

	else if (numClients > 1)

	{

		ReplyToCommand(client, "[SM] %t", "More than one client matches", target);

		return -1;

	}

	else if (immunity && !CanUserTarget(client, clients[0]))

	{

		ReplyToCommand(client, "[SM] %t", "Unable to target");

		return -1;

	}

	else if (nobots && IsFakeClient(clients[0]))

	{

		ReplyToCommand(client, "[SM] %t", "Cannot target bot");

		return -1;

	}

	return clients[0];

}