/*
 * Copyright (C) 2008 Trinity <http://www.trinitycore.org/>
 *
 * Thanks to the original authors: MaNGOS <http://www.mangosproject.org/>
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include "Common.h"
#include "Database/DatabaseEnv.h"
#include "WorldPacket.h"
#include "WorldSession.h"
#include "World.h"
#include "Player.h"
#include "Opcodes.h"
#include "Chat.h"
#include "MapManager.h"
#include "ObjectAccessor.h"
#include "Language.h"
#include "AccountMgr.h"
#include "SystemConfig.h"
#include "Util.h"

bool ChatHandler::HandleHelpCommand(const char* args)
{
    if(!*args)
        return false;

    char* cmd = strtok((char*)args, " ");
    if(!cmd)
        return false;

    if(!ShowHelpForCommand(getCommandTable(), cmd))
        SendSysMessage(LANG_NO_HELP_CMD);

    return true;
}

bool ChatHandler::HandleCommandsCommand(const char* args)
{
    ShowHelpForCommand(getCommandTable(), "");
    return true;
}

bool ChatHandler::HandleAcctCommand(const char* /*args*/)
{
    uint32 gmlevel = m_session->GetSecurity();
    PSendSysMessage(LANG_ACCOUNT_LEVEL, gmlevel);
    return true;
}

bool ChatHandler::HandleStartCommand(const char* /*args*/)
{
    Player *chr = m_session->GetPlayer();

    if(chr->isInFlight())
    {
        SendSysMessage(LANG_YOU_IN_FLIGHT);
        SetSentErrorMessage(true);
        return false;
    }

    if(chr->isInCombat())
    {
        SendSysMessage(LANG_YOU_IN_COMBAT);
        SetSentErrorMessage(true);
        return false;
    }

    // cast spell Stuck
    chr->CastSpell(chr,7355,false);
    return true;
}

bool ChatHandler::HandleInfoCommand(const char* /*args*/)
{
    uint32 activeClientsNum = sWorld.GetActiveSessionCount();
    uint32 queuedClientsNum = sWorld.GetQueuedSessionCount();
    uint32 maxActiveClientsNum = sWorld.GetMaxActiveSessionCount();
    uint32 maxQueuedClientsNum = sWorld.GetMaxQueuedSessionCount();
    std::string str = secsToTimeString(sWorld.GetUptime());

    PSendSysMessage(_FULLVERSION);
    PSendSysMessage(LANG_CONNECTED_USERS, activeClientsNum, maxActiveClientsNum, queuedClientsNum, maxQueuedClientsNum);
    PSendSysMessage(LANG_UPTIME, str.c_str());

    return true;
}

bool ChatHandler::HandleDismountCommand(const char* /*args*/)
{
    //If player is not mounted, so go out :)
    if (!m_session->GetPlayer( )->IsMounted())
    {
        SendSysMessage(LANG_CHAR_NON_MOUNTED);
        SetSentErrorMessage(true);
        return false;
    }

    if(m_session->GetPlayer( )->isInFlight())
    {
        SendSysMessage(LANG_YOU_IN_FLIGHT);
        SetSentErrorMessage(true);
        return false;
    }

    m_session->GetPlayer()->Unmount();
    m_session->GetPlayer()->RemoveSpellsCausingAura(SPELL_AURA_MOUNTED);
    return true;
}

bool ChatHandler::HandleSaveCommand(const char* /*args*/)
{
    Player *player=m_session->GetPlayer();

    // save GM account without delay and output message (testing, etc)
    if(m_session->GetSecurity())
    {
        player->SaveToDB();
        SendSysMessage(LANG_PLAYER_SAVED);
        return true;
    }

    // save or plan save after 20 sec (logout delay) if current next save time more this value and _not_ output any messages to prevent cheat planning
    uint32 save_interval = sWorld.getConfig(CONFIG_INTERVAL_SAVE);
    if(save_interval==0 || save_interval > 20*1000 && player->GetSaveTimer() <= save_interval - 20*1000)
        player->SaveToDB();

    return true;
}

bool ChatHandler::HandleGMListCommand(const char* /*args*/)
{
    bool first = true;

    HashMapHolder<Player>::MapType &m = HashMapHolder<Player>::GetContainer();
    HashMapHolder<Player>::MapType::iterator itr = m.begin();
    for(; itr != m.end(); ++itr)
    {
        if( itr->second->GetSession()->GetSecurity() && (itr->second->isGameMaster() || sWorld.getConfig(CONFIG_GM_IN_GM_LIST) ) &&
            itr->second->IsVisibleGloballyFor(m_session->GetPlayer()) )
        {
            if(first)
            {
                SendSysMessage(LANG_GMS_ON_SRV);
                first = false;
            }

            SendSysMessage(itr->second->GetName());
        }
    }

    if(first)
        SendSysMessage(LANG_GMS_NOT_LOGGED);

    return true;
}

bool ChatHandler::HandlePasswordCommand(const char* args)
{
    if(!*args)
        return false;

    char *old_pass = strtok ((char*)args, " ");
    char *new_pass = strtok (NULL, " ");
    char *new_pass_c  = strtok (NULL, " ");

    if( !old_pass || !new_pass || !new_pass_c )
        return false;

    std::string password_old = old_pass;
    std::string password_new = new_pass;
    std::string password_new_c = new_pass_c;

    if(!accmgr.CheckPassword(m_session->GetAccountId(), password_old) || password_new != password_new_c)
    {
        SendSysMessage(LANG_COMMAND_WRONGOLDPASSWORD);
        SetSentErrorMessage(true);
        return false;
    }

    AccountOpResult result = accmgr.ChangePassword(m_session->GetAccountId(), password_new);

    switch(result)
    {
        case AOR_OK:
            SendSysMessage(LANG_COMMAND_PASSWORD);
            break;
        default:
            SendSysMessage(LANG_COMMAND_NOTCHANGEPASSWORD);
            SetSentErrorMessage(true);
            return false;
    }

    return true;
}

bool ChatHandler::HandleLockAccountCommand(const char* args)
{
    if (!*args)
    {
        SendSysMessage(LANG_USE_BOL);
        return true;
    }

    std::string argstr = (char*)args;
    if (argstr == "on")
    {
        loginDatabase.PExecute( "UPDATE account SET locked = '1' WHERE id = '%d'",m_session->GetAccountId());
        PSendSysMessage(LANG_COMMAND_ACCLOCKLOCKED);
        return true;
    }

    if (argstr == "off")
    {
        loginDatabase.PExecute( "UPDATE account SET locked = '0' WHERE id = '%d'",m_session->GetAccountId());
        PSendSysMessage(LANG_COMMAND_ACCLOCKUNLOCKED);
        return true;
    }

    SendSysMessage(LANG_USE_BOL);
    return true;
}