/**

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

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

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

 *

 * This file is not open source and may not be copied without explicit

 * written permission of AlliedModders LLC.  This file may not be redistributed 

 * in whole or significant part.

 * For information, see LICENSE.txt or http://www.sourcemod.net/license.php

 *

 * Version: $Id$

 */

#include "sm_srvcmds.h"

#include "sm_version.h"

#include "sm_stringutil.h"

RootConsoleMenu g_RootMenu;

RootConsoleMenu::RootConsoleMenu()

{

	m_pCommands = sm_trie_create();

}

RootConsoleMenu::~RootConsoleMenu()

{

	sm_trie_destroy(m_pCommands);

	List<ConsoleEntry *>::iterator iter;

	for (iter=m_Menu.begin(); iter!=m_Menu.end(); iter++)

	{

		delete (*iter);

	}

	m_Menu.clear();

}

void RootConsoleMenu::OnSourceModStartup(bool late)

{

	ConCommandBaseMgr::OneTimeInit(this);

	AddRootConsoleCommand("version", "Display version information", this);

	AddRootConsoleCommand("credits", "Display credits listing", this);

}

void RootConsoleMenu::OnSourceModShutdown()

{

	RemoveRootConsoleCommand("credits", this);

	RemoveRootConsoleCommand("version", this);

}

bool RootConsoleMenu::RegisterConCommandBase(ConCommandBase *pCommand)

{

	META_REGCVAR(pCommand);

	return true;

}

void RootConsoleMenu::ConsolePrint(const char *fmt, ...)

{

	char buffer[512];

	va_list ap;

	va_start(ap, fmt);

	size_t len = vsnprintf(buffer, sizeof(buffer), fmt, ap);

	va_end(ap);

	if (len >= sizeof(buffer) - 1)

	{

		buffer[510] = '\n';

		buffer[511] = '\0';

	} else {

		buffer[len++] = '\n';

		buffer[len] = '\0';

	}

	META_CONPRINT(buffer);

}

bool RootConsoleMenu::AddRootConsoleCommand(const char *cmd, const char *text, IRootConsoleCommand *pHandler)

{

	if (sm_trie_retrieve(m_pCommands, cmd, NULL))

	{

		return false;

	}

	sm_trie_insert(m_pCommands, cmd, pHandler);

	/* Sort this into the menu */

	List<ConsoleEntry *>::iterator iter = m_Menu.begin();

	ConsoleEntry *pEntry;

	bool inserted = false;

	while (iter != m_Menu.end())

	{

		pEntry = (*iter);

		if (strcmp(cmd, pEntry->command.c_str()) < 0)

		{

			ConsoleEntry *pNew = new ConsoleEntry;

			pNew->command.assign(cmd);

			pNew->description.assign(text);

			m_Menu.insert(iter, pNew);

			inserted = true;

			break;

		}

		iter++;

	}

	if (!inserted)

	{

		ConsoleEntry *pNew = new ConsoleEntry;

		pNew->command.assign(cmd);

		pNew->description.assign(text);

		m_Menu.push_back(pNew);

	}

	return true;

}

bool RootConsoleMenu::RemoveRootConsoleCommand(const char *cmd, IRootConsoleCommand *pHandler)

{

	/* Sanity tests */

	IRootConsoleCommand *object;

	if (sm_trie_retrieve(m_pCommands, cmd, (void **)&object))

	{

		if (object != pHandler)

		{

			return false;

		}

	} else {

		return false;

	}

	sm_trie_delete(m_pCommands, cmd);

	List<ConsoleEntry *>::iterator iter;

	ConsoleEntry *pEntry;

	for (iter=m_Menu.begin(); iter!=m_Menu.end(); iter++)

	{

		pEntry = (*iter);

		if (pEntry->command.compare(cmd) == 0)

		{

			delete pEntry;

			m_Menu.erase(iter);

			break;

		}

	}

	return true;

}

void RootConsoleMenu::DrawGenericOption(const char *cmd, const char *text)

{

	char buffer[255];

	size_t len, cmdlen = strlen(cmd);

	len = snprintf(buffer, sizeof(buffer), "    %s", cmd);

	if (cmdlen < 16)

	{

		size_t num = 16 - cmdlen;

		for (size_t i = 0; i < num; i++)

		{

			buffer[len++] = ' ';

		}

		len += snprintf(&buffer[len], sizeof(buffer) - len, " - %s", text);

		ConsolePrint("%s", buffer);

	}

}

void RootConsoleMenu::GotRootCmd()

{

	unsigned int argnum = GetArgumentCount();

	if (argnum >= 2)

	{

		const char *cmd = GetArgument(1);

		IRootConsoleCommand *pHandler;

		if (sm_trie_retrieve(m_pCommands, cmd, (void **)&pHandler))

		{

			pHandler->OnRootConsoleCommand(cmd, argnum);

			return;

		}

	}

	ConsolePrint("SourceMod Menu:");

	ConsolePrint("Usage: sm <command> [arguments]");

	List<ConsoleEntry *>::iterator iter;

	ConsoleEntry *pEntry;

	for (iter=m_Menu.begin(); iter!=m_Menu.end(); iter++)

	{

		pEntry = (*iter);

		DrawGenericOption(pEntry->command.c_str(), pEntry->description.c_str());

	}

}

const char *RootConsoleMenu::GetArgument(unsigned int argno)

{

	return engine->Cmd_Argv(argno);

}

const char *RootConsoleMenu::GetArguments()

{

	return engine->Cmd_Args();

}

unsigned int RootConsoleMenu::GetArgumentCount()

{

	return engine->Cmd_Argc();

}

void RootConsoleMenu::OnRootConsoleCommand(const char *cmd, unsigned int argcount)

{

	if (strcmp(cmd, "credits") == 0)

	{

		ConsolePrint(" SourceMod was developed by AlliedModders, LLC.");

		ConsolePrint(" Development would not have been possible without the following people:");

		ConsolePrint("  David \"BAILOPAN\" Anderson, lead developer");

		ConsolePrint("  Borja \"faluco\" Ferrer, Core developer");

		ConsolePrint("  Scott \"Damaged Soul\" Ehlert, SourceMM developer");

		ConsolePrint("  Pavol \"PM OnoTo\" Marko, SourceHook developer");

		ConsolePrint(" Special thanks to Viper of GameConnect");

		ConsolePrint(" Special thanks to Mani of Mani-Admin-Plugin");

		ConsolePrint(" http://www.sourcemod.net/");

	} else if (strcmp(cmd, "version") == 0) {

		ConsolePrint(" SourceMod Version Information:");

		ConsolePrint("    SourceMod Version: %s", SOURCEMOD_VERSION);

		ConsolePrint("    JIT Version: %s, %s", g_pVM->GetVMName(), g_pVM->GetVersionString());

		ConsolePrint("    JIT Settings: %s", g_pVM->GetCPUOptimizations());

		ConsolePrint("    http://www.sourcemod.net/");

	}

}

CON_COMMAND(sm, "SourceMod Menu")

{

	g_RootMenu.GotRootCmd();

}