/**

  * vim: set ts=4 :

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

  * SourceMod

  * 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: $Id$

  */

 #include "DebugReporter.h"

 #include "Logger.h"

 #include "PluginSys.h"

 #include "sm_stringutil.h"

 DebugReport g_DbgReporter;

 void DebugReport::OnSourceModAllInitialized()

 {

 	g_pSourcePawn->SetDebugListener(this);

 }

 void DebugReport::OnDebugSpew(const char *msg, ...)

 {

 	va_list ap;

 	char buffer[512];

 	va_start(ap, msg);

 	UTIL_FormatArgs(buffer, sizeof(buffer), msg, ap);

 	va_end(ap);

 	g_Logger.LogMessage("[SM] %s", buffer);

 }

 void DebugReport::GenerateError(IPluginContext *ctx, cell_t func_idx, int err, const char *message, ...)

 {

 	va_list ap;

 	va_start(ap, message);

 	GenerateErrorVA(ctx, func_idx, err, message, ap);

 	va_end(ap);

 }

 void DebugReport::GenerateErrorVA(IPluginContext *ctx, cell_t func_idx, int err, const char *message, va_list ap)

 {

 	char buffer[512];

 	UTIL_FormatArgs(buffer, sizeof(buffer), message, ap);

 	const char *plname = g_PluginSys.FindPluginByContext(ctx->GetContext())->GetFilename();

 	const char *error = g_pSourcePawn2->GetErrorString(err);

 	if (error)

 	{

 		g_Logger.LogError("[SM] Plugin \"%s\" encountered error %d: %s", plname, err, error);

 	} else {

 		g_Logger.LogError("[SM] Plugin \"%s\" encountered unknown error %d", plname, err);

 	}

 	g_Logger.LogError("[SM] %s", buffer);

 	if (func_idx != -1)

 	{

 		if (func_idx & 1)

 		{

 			func_idx >>= 1;

 			sp_public_t *function;

 			if (ctx->GetRuntime()->GetPublicByIndex(func_idx, &function) == SP_ERROR_NONE)

 			{

 				g_Logger.LogError("[SM] Unable to call function \"%s\" due to above error(s).", function->name);

 			}

 		}

 	}

 }

 void DebugReport::GenerateCodeError(IPluginContext *pContext, uint32_t code_addr, int err, const char *message, ...)

 {

 	va_list ap;

 	char buffer[512];

 	va_start(ap, message);

 	UTIL_FormatArgs(buffer, sizeof(buffer), message, ap);

 	va_end(ap);

 	const char *plname = g_PluginSys.FindPluginByContext(pContext->GetContext())->GetFilename();

 	const char *error = g_pSourcePawn2->GetErrorString(err);

 	if (error)

 	{

 		g_Logger.LogError("[SM] Plugin \"%s\" encountered error %d: %s", plname, err, error);

 	} else {

 		g_Logger.LogError("[SM] Plugin \"%s\" encountered unknown error %d", plname, err);

 	}

 	g_Logger.LogError("[SM] %s", buffer);

 	IPluginDebugInfo *pDebug;

 	if ((pDebug = pContext->GetRuntime()->GetDebugInfo()) == NULL)

 	{

 		g_Logger.LogError("[SM] Debug mode is not enabled for \"%s\"", plname);

 		g_Logger.LogError("[SM] To enable debug mode, edit plugin_settings.cfg, or type: sm plugins debug %d on",

 			_GetPluginIndex(pContext));

 		return;

 	}

 	const char *name;

 	if (pDebug->LookupFunction(code_addr, &name) == SP_ERROR_NONE)

 	{

 		g_Logger.LogError("[SM] Unable to call function \"%s\" due to above error(s).", name);

 	} else {

 		g_Logger.LogError("[SM] Unable to call function (name unknown, address \"%x\").", code_addr);

 	}

 }

 void DebugReport::OnContextExecuteError(IPluginContext *ctx, IContextTrace *error)

 {

 	const char *lastname;

 	const char *plname = g_PluginSys.FindPluginByContext(ctx->GetContext())->GetFilename();

 	int n_err = error->GetErrorCode();

 	if (n_err != SP_ERROR_NATIVE)

 	{

 		g_Logger.LogError("[SM] Plugin encountered error %d: %s",

 			n_err,

 			error->GetErrorString());

 	}

 	if ((lastname=error->GetLastNative(NULL)) != NULL)

 	{

 		const char *custerr;

 		if ((custerr=error->GetCustomErrorString()) != NULL)

 		{

 			g_Logger.LogError("[SM] Native \"%s\" reported: %s", lastname, custerr);

 		} else {

 			g_Logger.LogError("[SM] Native \"%s\" encountered a generic error.", lastname);

 		}

 	}

 	if (!error->DebugInfoAvailable())

 	{

 		g_Logger.LogError("[SM] Debug mode is not enabled for \"%s\"", plname);

 		g_Logger.LogError("[SM] To enable debug mode, edit plugin_settings.cfg, or type: sm plugins debug %d on",

 			_GetPluginIndex(ctx));

 		return;

 	}

 	CallStackInfo stk_info;

 	int i = 0;

 	g_Logger.LogError("[SM] Displaying call stack trace for plugin \"%s\":", plname);

 	while (error->GetTraceInfo(&stk_info))

 	{

 		g_Logger.LogError("[SM]   [%d]  Line %d, %s::%s()",

 			i++,

 			stk_info.line,

 			stk_info.filename,

 			stk_info.function);

 	}

 }

 int DebugReport::_GetPluginIndex(IPluginContext *ctx)

 {

 	int id = 1;

 	IPluginIterator *iter = g_PluginSys.GetPluginIterator();

 	for (; iter->MorePlugins(); iter->NextPlugin(), id++)

 	{

 		IPlugin *pl = iter->GetPlugin();

 		if (pl->GetBaseContext() == ctx)

 		{

 			iter->Release();

 			return id;

 		}

 	}

 	iter->Release();

 	/* If we don't know which plugin this is, it's one being loaded.  Fake its index for now. */

 	return g_PluginSys.GetPluginCount() + 1;

 }