/**
 * MaNGOS is a full featured server for World of Warcraft, supporting
 * the following clients: 1.12.x, 2.4.3, 3.3.5a, 4.3.4a and 5.4.8
 *
 * Copyright (C) 2005-2015  MaNGOS project <http://getmangos.eu>
 *
 * 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
 *
 * World of Warcraft, and all World of Warcraft or Warcraft art, images,
 * and lore are copyrighted by Blizzard Entertainment, Inc.
 */

#include "Common.h"
#include "SharedDefines.h"
#include "WorldPacket.h"
#include "Opcodes.h"
#include "Log.h"
#include "Player.h"
#include "ObjectMgr.h"
#include "WorldSession.h"
#include "Object.h"
#include "Chat.h"
#include "BattleGroundEY.h"
#include "BattleGroundMgr.h"
#include "BattleGroundWS.h"
#include "BattleGround.h"
#include "ArenaTeam.h"
#include "Language.h"
#include "ScriptMgr.h"
#include "World.h"

void WorldSession::HandleBattlemasterHelloOpcode(WorldPacket& recv_data)
{
    ObjectGuid guid;
    recv_data >> guid;

    DEBUG_LOG("WORLD: Received opcode CMSG_BATTLEMASTER_HELLO from %s", guid.GetString().c_str());

    Creature* pCreature = GetPlayer()->GetMap()->GetCreature(guid);

    if (!pCreature)
        return;

    if (!pCreature->isBattleMaster())                       // it's not battlemaster
        return;

    // Stop the npc if moving
    pCreature->StopMoving();

    BattleGroundTypeId bgTypeId = sBattleGroundMgr.GetBattleMasterBG(pCreature->GetEntry());

    if (bgTypeId == BATTLEGROUND_TYPE_NONE)
        return;

    if (!_player->GetBGAccessByLevel(bgTypeId))
    {
        // temp, must be gossip message...
        SendNotification(LANG_YOUR_BG_LEVEL_REQ_ERROR);
        return;
    }

    SendBattlegGroundList(guid, bgTypeId);
}

void WorldSession::SendBattlegGroundList(ObjectGuid guid, BattleGroundTypeId bgTypeId)
{
    WorldPacket data;
    sBattleGroundMgr.BuildBattleGroundListPacket(&data, guid, _player, bgTypeId);
    SendPacket(&data);
}

void WorldSession::HandleBattlemasterJoinOpcode(WorldPacket& recv_data)
{
    ObjectGuid guid;
    uint32 bgTypeId_;
    uint32 instanceId;
    uint8 joinAsGroup;
    bool isPremade = false;
    Group* grp;

    recv_data >> instanceId;                                // instance id, 0 if First Available selected
    recv_data.ReadGuidMask<2, 0, 3, 1, 5>(guid);
    joinAsGroup = recv_data.ReadBit();
    recv_data.ReadGuidMask<4, 6, 7>(guid);
    recv_data.ReadGuidBytes<2, 6, 4, 3, 7, 0, 5, 1>(guid);

    bgTypeId_ = guid.GetCounter();
    DEBUG_LOG("WORLD: Received opcode CMSG_BATTLEMASTER_JOIN from %s, typeid: %u, asGroup: %u, bg guid: %s",
        _player->GetGuidStr().c_str(), bgTypeId_, joinAsGroup, guid.GetString().c_str());

    if (!sBattlemasterListStore.LookupEntry(bgTypeId_))
    {
        sLog.outError("Battleground: invalid bgtype (%u) received. possible cheater? player guid %u", bgTypeId_, _player->GetGUIDLow());
        return;
    }

    BattleGroundTypeId bgTypeId = BattleGroundTypeId(bgTypeId_);

    // can do this, since it's battleground, not arena
    BattleGroundQueueTypeId bgQueueTypeId = BattleGroundMgr::BGQueueTypeId(bgTypeId, ARENA_TYPE_NONE);

    // ignore if player is already in BG
    if (_player->InBattleGround())
        return;

    // get bg instance or bg template if instance not found
    BattleGround* bg = NULL;
    if (instanceId)
        bg = sBattleGroundMgr.GetBattleGroundThroughClientInstance(instanceId, bgTypeId);

    if (!bg && !(bg = sBattleGroundMgr.GetBattleGroundTemplate(bgTypeId)))
    {
        sLog.outError("Battleground: no available bg / template found");
        return;
    }

    // expected bracket entry
    PvPDifficultyEntry const* bracketEntry = GetBattlegroundBracketByLevel(bg->GetMapId(), _player->getLevel());
    if (!bracketEntry)
        return;

    GroupJoinBattlegroundResult err = ERR_BATTLEGROUND_NONE;

    // check queue conditions
    if (!joinAsGroup)
    {
        // check Deserter debuff
        if (!_player->CanJoinToBattleground())
        {
            WorldPacket data;
            sBattleGroundMgr.BuildBattleGroundStatusFailedPacket(&data, bg, _player, 0, ERR_GROUP_JOIN_BATTLEGROUND_DESERTERS);
            _player->GetSession()->SendPacket(&data);
            return;
        }
        // check if already in queue
        if (_player->GetBattleGroundQueueIndex(bgQueueTypeId) < PLAYER_MAX_BATTLEGROUND_QUEUES)
            // player is already in this queue
            return;
        // check if has free queue slots
        if (!_player->HasFreeBattleGroundQueueId())
            return;
    }
    else
    {
        grp = _player->GetGroup();
        // no group found, error
        if (!grp)
            return;
        if (grp->GetLeaderGuid() != _player->GetObjectGuid())
            return;
        err = grp->CanJoinBattleGroundQueue(bg, bgQueueTypeId, 0, bg->GetMaxPlayersPerTeam(), false, 0);
        isPremade = sWorld.getConfig(CONFIG_UINT32_BATTLEGROUND_PREMADE_GROUP_WAIT_FOR_MATCH) &&
                    (grp->GetMembersCount() >= bg->GetMinPlayersPerTeam());
    }
    // if we're here, then the conditions to join a bg are met. We can proceed in joining.

    // _player->GetGroup() was already checked, grp is already initialized
    BattleGroundQueue& bgQueue = sBattleGroundMgr.m_BattleGroundQueues[bgQueueTypeId];
    if (err)
    {
        WorldPacket data;
        sBattleGroundMgr.BuildBattleGroundStatusFailedPacket(&data, bg, _player, 0, err);
        SendPacket(&data);
    }
    else if (joinAsGroup)
    {
        GroupQueueInfo* ginfo = NULL;
        uint32 avgTime = 0;

        DEBUG_LOG("Battleground: the following players are joining as group:");
        ginfo = bgQueue.AddGroup(_player, grp, bgTypeId, bracketEntry, ARENA_TYPE_NONE, false, isPremade, 0);
        avgTime = bgQueue.GetAverageQueueWaitTime(ginfo, bracketEntry->GetBracketId());

        for (GroupReference* itr = grp->GetFirstMember(); itr != NULL; itr = itr->next())
        {
            Player* member = itr->getSource();
            if (!member)
                continue;                                   // this should never happen

            // add to queue
            uint32 queueSlot = member->AddBattleGroundQueueId(bgQueueTypeId);

            // send status packet (in queue)
            WorldPacket data;
            sBattleGroundMgr.BuildBattleGroundStatusPacket(&data, bg, member, queueSlot, STATUS_WAIT_QUEUE, avgTime, 0, ginfo->arenaType);
            member->GetSession()->SendPacket(&data);
            DEBUG_LOG("Battleground: player joined queue for bg queue type %u bg type %u: GUID %u, NAME %s", bgQueueTypeId, bgTypeId, member->GetGUIDLow(), member->GetName());
        }
        DEBUG_LOG("Battleground: group end");
    }
    else
    {
        GroupQueueInfo* ginfo = bgQueue.AddGroup(_player, NULL, bgTypeId, bracketEntry, ARENA_TYPE_NONE, false, isPremade, 0);
        uint32 avgTime = bgQueue.GetAverageQueueWaitTime(ginfo, bracketEntry->GetBracketId());
        // already checked if queueSlot is valid, now just get it
        uint32 queueSlot = _player->AddBattleGroundQueueId(bgQueueTypeId);

        WorldPacket data;
        // send status packet (in queue)
        sBattleGroundMgr.BuildBattleGroundStatusPacket(&data, bg, _player, queueSlot, STATUS_WAIT_QUEUE, avgTime, 0, ginfo->arenaType);
        SendPacket(&data);
        DEBUG_LOG("Battleground: player joined queue for bg queue type %u bg type %u: GUID %u, NAME %s", bgQueueTypeId, bgTypeId, _player->GetGUIDLow(), _player->GetName());
    }
    sBattleGroundMgr.ScheduleQueueUpdate(0, ARENA_TYPE_NONE, bgQueueTypeId, bgTypeId, bracketEntry->GetBracketId());
}

void WorldSession::HandleBattleGroundPlayerPositionsOpcode(WorldPacket& /*recv_data*/)
{
    // empty opcode
    DEBUG_LOG("WORLD: Received opcode CMSG_BATTLEGROUND_PLAYER_POSITIONS");

    BattleGround* bg = _player->GetBattleGround();
    if (!bg)                                                // can't be received if player not in battleground
        return;

    Player* flagCarrierA = NULL;
    Player* flagCarrierH = NULL;
    uint32 flagCarrierCountA = 0;   // obsolete
    uint32 flagCarrierCountH = 0;

    switch (bg->GetTypeID())
    {
        case BATTLEGROUND_WS:
        {
            if (flagCarrierA = sObjectMgr.GetPlayer(((BattleGroundWS*)bg)->GetAllianceFlagCarrierGuid()))
                ++flagCarrierCountH;

            if (flagCarrierH = sObjectMgr.GetPlayer(((BattleGroundWS*)bg)->GetHordeFlagCarrierGuid()))
                ++flagCarrierCountH;
            break;
        }
        case BATTLEGROUND_EY:
        {
            if (flagCarrierH = sObjectMgr.GetPlayer(((BattleGroundEY*)bg)->GetFlagCarrierGuid()))
                ++flagCarrierCountH;
            break;
        }
        case BATTLEGROUND_AB:
        case BATTLEGROUND_AV:
            // for other BG types - send default
            break;
        default:
            // maybe it is sent also in arena - do nothing
            break;
    }

    WorldPacket data(SMSG_BATTLEGROUND_PLAYER_POSITIONS, (3 + 1) * 2 + (8 + 4 + 4) * 2);
    data.WriteBits(flagCarrierCountA, 22);
    data.WriteBits(flagCarrierCountH, 22);
    if (flagCarrierA)
        data.WriteGuidMask<6, 5, 4, 7, 2, 1, 0, 3>(flagCarrierA->GetObjectGuid());
    if (flagCarrierH)
        data.WriteGuidMask<6, 5, 4, 7, 2, 1, 0, 3>(flagCarrierH->GetObjectGuid());

    if (flagCarrierA)
    {
        data.WriteGuidBytes<2, 1>(flagCarrierA->GetObjectGuid());
        data << float(flagCarrierA->GetPositionY());
        data.WriteGuidBytes<5, 4, 7, 0, 6, 3>(flagCarrierA->GetObjectGuid());
        data << float(flagCarrierA->GetPositionX());
    }
    if (flagCarrierH)
    {
        data.WriteGuidBytes<2, 1>(flagCarrierH->GetObjectGuid());
        data << float(flagCarrierH->GetPositionY());
        data.WriteGuidBytes<5, 4, 7, 0, 6, 3>(flagCarrierH->GetObjectGuid());
        data << float(flagCarrierH->GetPositionX());
    }

    SendPacket(&data);
}

void WorldSession::HandlePVPLogDataOpcode(WorldPacket& /*recv_data*/)
{
    DEBUG_LOG("WORLD: Received opcode CMSG_PVP_LOG_DATA");

    BattleGround* bg = _player->GetBattleGround();
    if (!bg)
        return;

    // arena finish version will send in BattleGround::EndBattleGround directly
    if (bg->isArena())
        return;

    WorldPacket data;
    sBattleGroundMgr.BuildPvpLogDataPacket(&data, bg);
    SendPacket(&data);

    DEBUG_LOG("WORLD: Sent SMSG_PVP_LOG_DATA Message");
}

void WorldSession::HandleBattlefieldListOpcode(WorldPacket& recv_data)
{
    DEBUG_LOG("WORLD: Received opcode CMSG_BATTLEFIELD_LIST");

    uint32 bgTypeId;
    recv_data >> bgTypeId;                                  // id from DBC

    BattlemasterListEntry const* bl = sBattlemasterListStore.LookupEntry(bgTypeId);
    if (!bl)
    {
        sLog.outError("Battleground: invalid bgtype received.");
        return;
    }

    WorldPacket data;
    sBattleGroundMgr.BuildBattleGroundListPacket(&data, ObjectGuid(), _player, BattleGroundTypeId(bgTypeId));
    SendPacket(&data);
}

void WorldSession::HandleBattleFieldPortOpcode(WorldPacket& recv_data)
{
    DEBUG_LOG("WORLD: Received opcode CMSG_BATTLEFIELD_PORT");

    uint32 time;
    uint32 queueSlot;
    uint32 unk;                                             // unk
    uint8 action;                                           // enter battle 0x1, leave queue 0x0
    ObjectGuid guid;                                        // player guid

    recv_data >> time >> queueSlot >> unk;

    recv_data.ReadGuidMask<0, 1, 5, 6, 7, 4, 3, 2>(guid);
    action = recv_data.ReadBit() ? 1 : 0;
    recv_data.ReadGuidBytes<1, 3, 5, 7, 0, 2, 6, 4>(guid);

    DEBUG_LOG("WORLD: Recvd CMSG_BATTLEFIELD_PORT Message, time %u queueSlot %u unk %u action %u guid %s",
        time, queueSlot, unk, action, guid.GetString().c_str());

    //if (type && !IsArenaTypeValid(ArenaType(type)))
    //{
    //    sLog.outError("BattlegroundHandler: Invalid CMSG_BATTLEFIELD_PORT received from player (%u), arena type wrong: %u.", _player->GetGUIDLow(), type);
    //    return;
    //}

    if (!_player->InBattleGroundQueue())
    {
        sLog.outError("BattlegroundHandler: Invalid CMSG_BATTLEFIELD_PORT received from player (%u), he is not in bg_queue.", _player->GetGUIDLow());
        return;
    }

    BattleGroundQueueTypeId bgQueueTypeId = _player->GetBattleGroundQueueTypeId(queueSlot);
    if (bgQueueTypeId == BATTLEGROUND_QUEUE_NONE)
    {
        sLog.outError("BattlegroundHandler: invalid queueSlot (%u) received.", queueSlot);
        return;
    }

    // get GroupQueueInfo from BattleGroundQueue
    BattleGroundQueue& bgQueue = sBattleGroundMgr.m_BattleGroundQueues[bgQueueTypeId];
    // we must use temporary variable, because GroupQueueInfo pointer can be deleted in BattleGroundQueue::RemovePlayer() function
    GroupQueueInfo ginfo;
    if (!bgQueue.GetPlayerGroupInfoData(_player->GetObjectGuid(), &ginfo))
    {
        sLog.outError("BattlegroundHandler: itrplayerstatus not found.");
        return;
    }
    // if action == 1, then instanceId is required
    if (!ginfo.IsInvitedToBGInstanceGUID && action == 1)
    {
        sLog.outError("BattlegroundHandler: instance not found.");
        return;
    }

    BattleGroundTypeId bgTypeId = BattleGroundMgr::BGTemplateId(bgQueueTypeId);
    // ::BGTemplateId returns BATTLEGROUND_AA when it is arena queue.
    // Do instance id search as there is no AA bg instances.
    BattleGround* bg = sBattleGroundMgr.GetBattleGround(ginfo.IsInvitedToBGInstanceGUID, bgTypeId == BATTLEGROUND_AA ? BATTLEGROUND_TYPE_NONE : bgTypeId);

    // bg template might and must be used in case of leaving queue, when instance is not created yet
    if (!bg && action == 0)
        bg = sBattleGroundMgr.GetBattleGroundTemplate(bgTypeId);
    if (!bg)
    {
        sLog.outError("BattlegroundHandler: bg_template not found for instance id %u type id %u.", ginfo.IsInvitedToBGInstanceGUID, bgTypeId);
        return;
    }

    // get real bg type
    bgTypeId = bg->GetTypeID();
    // expected bracket entry
    PvPDifficultyEntry const* bracketEntry = GetBattlegroundBracketByLevel(bg->GetMapId(), _player->getLevel());
    if (!bracketEntry)
        return;

    // some checks if player isn't cheating - it is not exactly cheating, but we cannot allow it
    if (action == 1 && ginfo.arenaType == ARENA_TYPE_NONE)
    {
        // if player is trying to enter battleground (not arena!) and he has deserter debuff, we must just remove him from queue
        if (!_player->CanJoinToBattleground())
        {
            // send bg command result to show nice message
            WorldPacket data2;
            sBattleGroundMgr.BuildBattleGroundStatusFailedPacket(&data2, bg, _player, queueSlot, ERR_GROUP_JOIN_BATTLEGROUND_DESERTERS);
            _player->GetSession()->SendPacket(&data2);
            action = 0;
            DEBUG_LOG("Battleground: player %s (%u) has a deserter debuff, do not port him to battleground!", _player->GetName(), _player->GetGUIDLow());
        }
        // if player don't match battleground max level, then do not allow him to enter! (this might happen when player leveled up during his waiting in queue
        if (_player->getLevel() > bg->GetMaxLevel())
        {
            sLog.outError("Battleground: Player %s (%u) has level (%u) higher than maxlevel (%u) of battleground (%u)! Do not port him to battleground!",
                          _player->GetName(), _player->GetGUIDLow(), _player->getLevel(), bg->GetMaxLevel(), bg->GetTypeID());
            action = 0;
        }
    }

    WorldPacket data;
    switch (action)
    {
        case 1:                                         // port to battleground
            if (!_player->IsInvitedForBattleGroundQueueType(bgQueueTypeId))
                return;                                 // cheating?

            if (!_player->InBattleGround())
                _player->SetBattleGroundEntryPoint();

            // resurrect the player
            if (!_player->IsAlive())
            {
                _player->ResurrectPlayer(1.0f);
                _player->SpawnCorpseBones();
            }
            // stop taxi flight at port
            if (_player->IsTaxiFlying())
            {
                _player->GetMotionMaster()->MovementExpired();
                _player->m_taxi.ClearTaxiDestinations();
            }

            sBattleGroundMgr.BuildBattleGroundStatusPacket(&data, bg, _player, queueSlot, STATUS_IN_PROGRESS, bg->GetEndTime(), bg->GetStartTime(), bg->GetArenaType());
            _player->GetSession()->SendPacket(&data);
            // remove battleground queue status from BGmgr
            bgQueue.RemovePlayer(_player->GetObjectGuid(), false);
            // this is still needed here if battleground "jumping" shouldn't add deserter debuff
            // also this is required to prevent stuck at old battleground after SetBattleGroundId set to new
            if (BattleGround* currentBg = _player->GetBattleGround())
                currentBg->RemovePlayerAtLeave(_player->GetObjectGuid(), false, true);

            // set the destination instance id
            _player->SetBattleGroundId(bg->GetInstanceID(), bgTypeId);
            // set the destination team
            _player->SetBGTeam(ginfo.GroupTeam);
            // bg->HandleBeforeTeleportToBattleGround(_player);
            sBattleGroundMgr.SendToBattleGround(_player, ginfo.IsInvitedToBGInstanceGUID, bgTypeId);
            // add only in HandleMoveWorldPortAck()
            // bg->AddPlayer(_player,team);
            DEBUG_LOG("Battleground: player %s (%u) joined battle for bg %u, bgtype %u, queue type %u.", _player->GetName(), _player->GetGUIDLow(), bg->GetInstanceID(), bg->GetTypeID(), bgQueueTypeId);
            break;
        case 0:                                         // leave queue
            // if player leaves rated arena match before match start, it is counted as he played but he lost
            if (ginfo.IsRated && ginfo.IsInvitedToBGInstanceGUID)
            {
                ArenaTeam* at = sObjectMgr.GetArenaTeamById(ginfo.ArenaTeamId);
                if (at)
                {
                    DEBUG_LOG("UPDATING memberLost's personal arena rating for %s by opponents rating: %u, because he has left queue!", _player->GetGuidStr().c_str(), ginfo.OpponentsTeamRating);
                    at->MemberLost(_player, ginfo.OpponentsTeamRating);
                    at->SaveToDB();
                }
            }
            _player->RemoveBattleGroundQueueId(bgQueueTypeId);  // must be called this way, because if you move this call to queue->removeplayer, it causes bugs
            sBattleGroundMgr.BuildBattleGroundStatusPacket(&data, bg, _player, queueSlot, STATUS_NONE, 0, 0, ARENA_TYPE_NONE);
            bgQueue.RemovePlayer(_player->GetObjectGuid(), true);
            // player left queue, we should update it - do not update Arena Queue
            if (ginfo.arenaType == ARENA_TYPE_NONE)
                sBattleGroundMgr.ScheduleQueueUpdate(ginfo.ArenaTeamRating, ginfo.arenaType, bgQueueTypeId, bgTypeId, bracketEntry->GetBracketId());
            SendPacket(&data);
            DEBUG_LOG("Battleground: player %s (%u) left queue for bgtype %u, queue type %u.", _player->GetName(), _player->GetGUIDLow(), bg->GetTypeID(), bgQueueTypeId);
            break;
        default:
            sLog.outError("Battleground port: unknown action %u", action);
            break;
    }
}

void WorldSession::HandleLeaveBattlefieldOpcode(WorldPacket& recv_data)
{
    DEBUG_LOG("WORLD: Received opcode CMSG_LEAVE_BATTLEFIELD");

    // not allow leave battleground in combat
    if (_player->IsInCombat())
        if (BattleGround* bg = _player->GetBattleGround())
            if (bg->GetStatus() != STATUS_WAIT_LEAVE)
                return;

    _player->LeaveBattleground();
}

void WorldSession::HandleBattlefieldStatusOpcode(WorldPacket& /*recv_data*/)
{
    // empty opcode
    DEBUG_LOG("WORLD: CMSG_BATTLEFIELD_STATUS");

    WorldPacket data;
    // we must update all queues here
    BattleGround* bg = NULL;
    for (uint8 i = 0; i < PLAYER_MAX_BATTLEGROUND_QUEUES; ++i)
    {
        BattleGroundQueueTypeId bgQueueTypeId = _player->GetBattleGroundQueueTypeId(i);
        if (!bgQueueTypeId)
            continue;

        BattleGroundTypeId bgTypeId = BattleGroundMgr::BGTemplateId(bgQueueTypeId);
        ArenaType arenaType = BattleGroundMgr::BGArenaType(bgQueueTypeId);
        if (bgTypeId == _player->GetBattleGroundTypeId())
        {
            bg = _player->GetBattleGround();
            // i cannot check any variable from player class because player class doesn't know if player is in 2v2 / 3v3 or 5v5 arena
            // so i must use bg pointer to get that information
            if (bg && bg->GetArenaType() == arenaType)
            {
                // this line is checked, i only don't know if GetStartTime is changing itself after bg end!
                // send status in BattleGround
                sBattleGroundMgr.BuildBattleGroundStatusPacket(&data, bg, _player, i, STATUS_IN_PROGRESS, bg->GetEndTime(), 0, arenaType);
                SendPacket(&data);
                continue;
            }
        }
        // we are sending update to player about queue - he can be invited there!
        // get GroupQueueInfo for queue status
        BattleGroundQueue& bgQueue = sBattleGroundMgr.m_BattleGroundQueues[bgQueueTypeId];
        GroupQueueInfo ginfo;
        if (!bgQueue.GetPlayerGroupInfoData(_player->GetObjectGuid(), &ginfo))
            continue;
        if (ginfo.IsInvitedToBGInstanceGUID)
        {
            bg = sBattleGroundMgr.GetBattleGround(ginfo.IsInvitedToBGInstanceGUID, bgTypeId);
            if (!bg)
                continue;
            uint32 remainingTime = WorldTimer::getMSTimeDiff(WorldTimer::getMSTime(), ginfo.RemoveInviteTime);
            // send status invited to BattleGround
            sBattleGroundMgr.BuildBattleGroundStatusPacket(&data, bg, _player, i, STATUS_WAIT_JOIN, remainingTime, 0, arenaType);
            SendPacket(&data);
        }
        else
        {
            bg = sBattleGroundMgr.GetBattleGroundTemplate(bgTypeId);
            if (!bg)
                continue;

            // expected bracket entry
            PvPDifficultyEntry const* bracketEntry = GetBattlegroundBracketByLevel(bg->GetMapId(), _player->getLevel());
            if (!bracketEntry)
                continue;

            uint32 avgTime = bgQueue.GetAverageQueueWaitTime(&ginfo, bracketEntry->GetBracketId());
            // send status in BattleGround Queue
            sBattleGroundMgr.BuildBattleGroundStatusPacket(&data, bg, _player, i, STATUS_WAIT_QUEUE, avgTime, WorldTimer::getMSTimeDiff(ginfo.JoinTime, WorldTimer::getMSTime()), arenaType);
            SendPacket(&data);
        }
    }
}

void WorldSession::HandleAreaSpiritHealerQueryOpcode(WorldPacket& recv_data)
{
    DEBUG_LOG("WORLD: CMSG_AREA_SPIRIT_HEALER_QUERY");

    BattleGround* bg = _player->GetBattleGround();
    if (!bg)
        return;

    ObjectGuid guid;
    recv_data >> guid;

    Creature* unit = GetPlayer()->GetMap()->GetCreature(guid);
    if (!unit)
        return;

    if (!unit->isSpiritService())                           // it's not spirit service
        return;

    unit->SendAreaSpiritHealerQueryOpcode(GetPlayer());
}

void WorldSession::HandleAreaSpiritHealerQueueOpcode(WorldPacket& recv_data)
{
    DEBUG_LOG("WORLD: CMSG_AREA_SPIRIT_HEALER_QUEUE");

    BattleGround* bg = _player->GetBattleGround();
    if (!bg)
        return;

    ObjectGuid guid;
    recv_data >> guid;

    Creature* unit = GetPlayer()->GetMap()->GetCreature(guid);
    if (!unit)
        return;

    if (!unit->isSpiritService())                           // it's not spirit service
        return;

    sScriptMgr.OnGossipHello(GetPlayer(), unit);
}

void WorldSession::HandleBattlemasterJoinArena(WorldPacket& recv_data)
{
    DEBUG_LOG("WORLD: CMSG_BATTLEMASTER_JOIN_ARENA");
    // recv_data.hexlike();

    uint8 arenaslot;                                        // 2v2, 3v3 or 5v5

    recv_data >> arenaslot;

    // ignore if we already in BG or BG queue
    if (_player->InBattleGround())
        return;

    ArenaType arenatype = ArenaTeam::GetTypeBySlot(arenaslot);
    uint32 arenaRating = 0;

    if (!IsArenaTypeValid(arenatype))
    {
        sLog.outError("Unknown arena slot %u at HandleBattlemasterJoinArena()", arenaslot);
        return;
    }

    // check existence
    BattleGround* bg = sBattleGroundMgr.GetBattleGroundTemplate(BATTLEGROUND_AA);
    if (!bg)
    {
        sLog.outError("Battleground: template bg (all arenas) not found");
        return;
    }

    BattleGroundTypeId bgTypeId = bg->GetTypeID();
    BattleGroundQueueTypeId bgQueueTypeId = BattleGroundMgr::BGQueueTypeId(bgTypeId, arenatype);
    PvPDifficultyEntry const* bracketEntry = GetBattlegroundBracketByLevel(bg->GetMapId(), _player->getLevel());
    if (!bracketEntry)
        return;

    Group* grp = _player->GetGroup();
    // no group found, error
    if (!grp)
        return;
    if (grp->GetLeaderGuid() != _player->GetObjectGuid())
        return;

    uint32 ateamId = _player->GetArenaTeamId(arenaslot);
    // check real arena team existence only here (if it was moved to group->CanJoin .. () then we would have to get it twice)
    ArenaTeam* at = sObjectMgr.GetArenaTeamById(ateamId);
    if (!at)
    {
        _player->GetSession()->SendNotInArenaTeamPacket(arenatype);
        return;
    }
    // get the team rating for queue
    arenaRating = at->GetRating();
    // the arena team id must match for everyone in the group
    // get the personal ratings for queue
    uint32 avg_pers_rating = 0;

    for (Group::member_citerator citr = grp->GetMemberSlots().begin(); citr != grp->GetMemberSlots().end(); ++citr)
    {
        ArenaTeamMember const* at_member = at->GetMember(citr->guid);
        if (!at_member)                                 // group member joining to arena must be in leader arena team
            return;

        // calc avg personal rating
        avg_pers_rating += at_member->personal_rating;
    }

    avg_pers_rating /= grp->GetMembersCount();

    // if avg personal rating is more than 150 points below the teams rating, the team will be queued against an opponent matching or similar to the average personal rating
    if (avg_pers_rating + 150 < arenaRating)
        arenaRating = avg_pers_rating;

    BattleGroundQueue& bgQueue = sBattleGroundMgr.m_BattleGroundQueues[bgQueueTypeId];
    uint32 avgTime = 0;

    // may be Group::CanJoinBattleGroundQueue should be moved to player class...
    GroupJoinBattlegroundResult err = grp->CanJoinBattleGroundQueue(bg, bgQueueTypeId, arenatype, arenatype, true, arenaslot);
    if (!err)
    {
        DEBUG_LOG("Battleground: arena join as group start");
        DEBUG_LOG("Battleground: arena team id %u, leader %s queued with rating %u for type %u", _player->GetArenaTeamId(arenaslot), _player->GetName(), arenaRating, arenatype);

        GroupQueueInfo* ginfo = bgQueue.AddGroup(_player, grp, bgTypeId, bracketEntry, arenatype, true, false, arenaRating, ateamId);
        avgTime = bgQueue.GetAverageQueueWaitTime(ginfo, bracketEntry->GetBracketId());
    }

    for (GroupReference* itr = grp->GetFirstMember(); itr != NULL; itr = itr->next())
    {
        Player* member = itr->getSource();
        if (!member)
            continue;

        WorldPacket data;

        if (err)
        {
            sBattleGroundMgr.BuildBattleGroundStatusFailedPacket(&data, bg, member, 0, err);
            member->GetSession()->SendPacket(&data);
            continue;
        }

        // add to queue
        uint32 queueSlot = member->AddBattleGroundQueueId(bgQueueTypeId);

        // send status packet (in queue)
        sBattleGroundMgr.BuildBattleGroundStatusPacket(&data, bg, member, queueSlot, STATUS_WAIT_QUEUE, avgTime, 0, arenatype);
        member->GetSession()->SendPacket(&data);
        DEBUG_LOG("Battleground: player joined queue for arena as group bg queue type %u bg type %u: GUID %u, NAME %s", bgQueueTypeId, bgTypeId, member->GetGUIDLow(), member->GetName());
    }
    DEBUG_LOG("Battleground: arena join as group end");

    sBattleGroundMgr.ScheduleQueueUpdate(arenaRating, arenatype, bgQueueTypeId, bgTypeId, bracketEntry->GetBracketId());
}

void WorldSession::HandleReportPvPAFK(WorldPacket& recv_data)
{
    ObjectGuid playerGuid;
    recv_data >> playerGuid;
    Player* reportedPlayer = sObjectMgr.GetPlayer(playerGuid);

    if (!reportedPlayer)
    {
        DEBUG_LOG("WorldSession::HandleReportPvPAFK: player not found");
        return;
    }

    DEBUG_LOG("WorldSession::HandleReportPvPAFK: %s reported %s", _player->GetName(), reportedPlayer->GetName());

    reportedPlayer->ReportedAfkBy(_player);
}

void WorldSession::HandleRequestRatedBGStatsOpcode(WorldPacket& recv_data)
{
    // null packet

    GetPlayer()->SendRatedBGStats();
}

void WorldSession::HandleRequestPvPOptionsEnabledOpcode(WorldPacket& recv_data)
{
    // null packet

    WorldPacket data(SMSG_PVP_OPTIONS_ENABLED, 1);
    for (int i = 0; i < 5; ++i)
        data.WriteBit(true);

    SendPacket(&data);
}

void WorldSession::HandleRequestPvPRewardsOpcode(WorldPacket& recv_data)
{
    // null packet

    GetPlayer()->SendPvPRewards();
}

void WorldSession::HandleRequestRatedBgInfo(WorldPacket & recvData)
{
    DEBUG_LOG("WORLD: CMSG_REQUEST_RATED_BG_INFO");

    uint8 unk;
    recvData >> unk;

    DEBUG_LOG("WorldSession::HandleRequestRatedBgInfo: unk = %u", unk);

    WorldPacket data(SMSG_RATED_BG_STATS, 72);
    data << uint32(0);      // BgWeeklyWins20vs20
    data << uint32(0);      // BgWeeklyPlayed20vs20
    data << uint32(0);      // BgWeeklyPlayed15vs15
    data << uint32(0);
    data << uint32(0);      // BgWeeklyWins10vs10
    data << uint32(0);
    data << uint32(0);
    data << uint32(0);
    data << uint32(0);      // BgWeeklyWins15vs15
    data << uint32(0);
    data << uint32(0);
    data << uint32(0);
    data << uint32(0);
    data << uint32(0);
    data << uint32(0);
    data << uint32(0);      // BgWeeklyPlayed10vs10
    data << uint32(0);
    data << uint32(0);

    SendPacket(&data);
}