/**

  * admin-groups.sp

  * Reads the admin_groups.cfg file.  Do not compile this directly.

  * This file is part of SourceMod, Copyright (C) 2004-2007 AlliedModders LLC

  *

  * This program is free software; you can redistribute it and/or

  * modify it under the terms of the GNU General Public License

  * as published by the Free Software Foundation; either version 2

  * of the License, or (at your option) any later version.

  *

  * 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, write to the Free Software

  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

  */

 #define GROUP_STATE_NONE		0

 #define GROUP_STATE_GROUPS		1

 #define GROUP_STATE_INGROUP		2

 #define GROUP_STATE_OVERRIDES	3

 #define GROUP_PASS_FIRST		1

 #define GROUP_PASS_SECOND		2

 static Handle:g_hGroupParser = INVALID_HANDLE;

 static GroupId:g_CurGrp = INVALID_GROUP_ID;

 static g_GroupState = GROUP_STATE_NONE;

 static g_GroupPass = 0;

 static bool:g_NeedReparse = false;

 public SMCResult:ReadGroups_NewSection(Handle:smc, const String:name[], bool:opt_quotes)

 {

 	if (g_IgnoreLevel)

 	{

 		g_IgnoreLevel++;

 		return SMCParse_Continue;

 	}

 	if (g_GroupState == GROUP_STATE_NONE)

 	{

 		if (StrEqual(name, "Groups"))

 		{

 			g_GroupState = GROUP_STATE_GROUPS;

 		} else {

 			g_IgnoreLevel++;

 		}

 	} else if (g_GroupState == GROUP_STATE_GROUPS) {

 		if ((g_CurGrp = CreateAdmGroup(name)) == INVALID_GROUP_ID)

 		{

 			g_CurGrp = FindAdmGroup(name);

 		}

 		g_GroupState = GROUP_STATE_INGROUP;

 	} else if (g_GroupState == GROUP_STATE_INGROUP) {

 		if (StrEqual(name, "Overrides"))

 		{

 			g_GroupState = GROUP_STATE_OVERRIDES;

 		} else {

 			g_IgnoreLevel++;

 		}

 	} else {

 		g_IgnoreLevel++;

 	}

 	return SMCParse_Continue;

 }

 public SMCResult:ReadGroups_KeyValue(Handle:smc, 

 										const String:key[], 

 										const String:value[], 

 										bool:key_quotes, 

 										bool:value_quotes)

 {

 	if (g_CurGrp == INVALID_GROUP_ID

 		|| g_IgnoreLevel)

 	{

 		return SMCParse_Continue;

 	}

 	new AdminFlag:flag;

 	if (g_GroupPass == GROUP_PASS_FIRST)

 	{

 		if (g_GroupState == GROUP_STATE_INGROUP)

 		{

 			if (StrEqual(key, "flags"))

 			{

 				new len = strlen(value);

 				for (new i=0; i<len; i++)

 				{

 					if (value[i] < 'a' || value[i] > 'z')

 					{

 						continue;

 					}

 					if (!g_FlagsSet[value[i] - 'a'])

 					{

 						continue;

 					}

 					flag = g_FlagLetters[value[i] - 'a'];

 					SetAdmGroupAddFlag(g_CurGrp, flag, true);

 				}

 			} else if (StrEqual(key, "immunity")) {

 				/* If it's a value we know about, use it */

 				if (StrEqual(value, "*"))

 				{

 					SetAdmGroupImmunity(g_CurGrp, Immunity_Global, true);

 				} else if (StrEqual(value, "$")) {

 					SetAdmGroupImmunity(g_CurGrp, Immunity_Default, true);

 				} else {

 					/* If we can't find the group, we'll need to schedule a reparse */

 					new GroupId:id = FindAdmGroup(value);

 					if (id != INVALID_GROUP_ID)

 					{

 						SetAdmGroupImmuneFrom(g_CurGrp, id);

 					} else {

 						g_NeedReparse = true;

 					}

 				}

 			}

 		} else if (g_GroupState == GROUP_STATE_OVERRIDES) {

 			new OverrideRule:rule = Command_Deny;

 			if (StrEqual(value, "allow", false))

 			{

 				rule = Command_Allow;

 			}

 			if (key[0] == '@')

 			{

 				AddAdmGroupCmdOverride(g_CurGrp, key[1], Override_CommandGroup, rule);

 			} else {

 				AddAdmGroupCmdOverride(g_CurGrp, key, Override_Command, rule);

 			}

 		}

 	} else if (g_GroupPass == GROUP_PASS_SECOND

 			   && g_GroupState == GROUP_STATE_INGROUP) {

 		/* Check for immunity again, core should handle double inserts */

 		if (StrEqual(key, "immunity"))

 		{

 			new GroupId:id = FindAdmGroup(value);

 			if (id != INVALID_GROUP_ID)

 			{

 				SetAdmGroupImmuneFrom(g_CurGrp, id);

 			} else {

 				ParseError("Unable to find group: \"%s\"", value);

 			}

 		}

 	}

 	return SMCParse_Continue;

 }

 public SMCResult:ReadGroups_EndSection(Handle:smc)

 {

 	/* If we're ignoring, skip out */

 	if (g_IgnoreLevel)

 	{

 		g_IgnoreLevel--;

 		return SMCParse_Continue;

 	}

 	if (g_GroupState == GROUP_STATE_OVERRIDES)

 	{

 		g_GroupState = GROUP_STATE_INGROUP;

 	} else if (g_GroupState == GROUP_STATE_INGROUP) {

 		g_GroupState = GROUP_STATE_GROUPS;

 		g_CurGrp = INVALID_GROUP_ID;

 	} else if (g_GroupState == GROUP_STATE_GROUPS) {

 		g_GroupState = GROUP_STATE_NONE;

 	}

 	return SMCParse_Continue;

 }

 static InitializeGroupParser()

 {

 	if (g_hGroupParser == INVALID_HANDLE)

 	{

 		g_hGroupParser = SMC_CreateParser();

 		SMC_SetReaders(g_hGroupParser,

 					   ReadGroups_NewSection,

 					   ReadGroups_KeyValue,

 					   ReadGroups_EndSection);

 	}

 }

 static InternalReadGroups(const String:path[], pass)

 {

 	/* Set states */

 	InitGlobalStates();

 	g_GroupState = GROUP_STATE_NONE;

 	g_CurGrp = INVALID_GROUP_ID;

 	g_GroupPass = pass;

 	g_NeedReparse = false;

 	new SMCError:err = SMC_ParseFile(g_hGroupParser, path);

 	if (err != SMCError_Okay)

 	{

 		decl String:buffer[64];

 		if (SMC_GetErrorString(err, buffer, sizeof(buffer)))

 		{

 			ParseError("%s", buffer);

 		} else {

 			ParseError("Fatal parse error");

 		}

 	}

 }

 ReadGroups()

 {

 	InitializeGroupParser();

 	BuildPath(Path_SM, g_Filename, sizeof(g_Filename), "configs/admin_groups.cfg");

 	InternalReadGroups(g_Filename, GROUP_PASS_FIRST);

 	if (g_NeedReparse)

 	{

 		InternalReadGroups(g_Filename, GROUP_PASS_SECOND);

 	}

 }