/*
 * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
 *
 * Copyright (C) 2008-2010 Trinity <http://www.trinitycore.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
 */

#ifndef TRINITY_GRIDNOTIFIERSIMPL_H
#define TRINITY_GRIDNOTIFIERSIMPL_H

#include "GridNotifiers.h"
#include "WorldPacket.h"
#include "Corpse.h"
#include "Player.h"
#include "UpdateData.h"
#include "CreatureAI.h"
#include "SpellAuras.h"


template<class T>
inline void
Trinity::VisibleNotifier::Visit(GridRefManager<T> &m)
{
    for (typename GridRefManager<T>::iterator iter = m.begin(); iter != m.end(); ++iter)
    {
        vis_guids.erase(iter->getSource()->GetGUID());
        i_player.UpdateVisibilityOf(iter->getSource(),i_data,i_visibleNow);
    }
}

inline void
Trinity::ObjectUpdater::Visit(CreatureMapType &m)
{
    for (CreatureMapType::iterator iter=m.begin(); iter != m.end(); ++iter)
        if (iter->getSource()->IsInWorld() && !iter->getSource()->isSpiritService())
            iter->getSource()->Update(i_timeDiff);
}

// SEARCHERS & LIST SEARCHERS & WORKERS

// WorldObject searchers & workers

template<class Check>
void Trinity::WorldObjectSearcher<Check>::Visit(GameObjectMapType &m)
{
    // already found
    if (i_object)
        return;

    for (GameObjectMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
        {
            i_object = itr->getSource();
            return;
        }
    }
}

template<class Check>
void Trinity::WorldObjectSearcher<Check>::Visit(PlayerMapType &m)
{
    // already found
    if (i_object)
        return;

    for (PlayerMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
        {
            i_object = itr->getSource();
            return;
        }
    }
}

template<class Check>
void Trinity::WorldObjectSearcher<Check>::Visit(CreatureMapType &m)
{
    // already found
    if (i_object)
        return;

    for (CreatureMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
        {
            i_object = itr->getSource();
            return;
        }
    }
}

template<class Check>
void Trinity::WorldObjectSearcher<Check>::Visit(CorpseMapType &m)
{
    // already found
    if (i_object)
        return;

    for (CorpseMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
        {
            i_object = itr->getSource();
            return;
        }
    }
}

template<class Check>
void Trinity::WorldObjectSearcher<Check>::Visit(DynamicObjectMapType &m)
{
    // already found
    if (i_object)
        return;

    for (DynamicObjectMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
        {
            i_object = itr->getSource();
            return;
        }
    }
}

template<class Check>
void Trinity::WorldObjectListSearcher<Check>::Visit(PlayerMapType &m)
{
    for (PlayerMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
        if (itr->getSource()->InSamePhase(i_phaseMask))
            if (i_check(itr->getSource()))
                i_objects.push_back(itr->getSource());
}

template<class Check>
void Trinity::WorldObjectListSearcher<Check>::Visit(CreatureMapType &m)
{
    for (CreatureMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
        if (itr->getSource()->InSamePhase(i_phaseMask))
            if (i_check(itr->getSource()))
                i_objects.push_back(itr->getSource());
}

template<class Check>
void Trinity::WorldObjectListSearcher<Check>::Visit(CorpseMapType &m)
{
    for (CorpseMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
        if (itr->getSource()->InSamePhase(i_phaseMask))
            if (i_check(itr->getSource()))
                i_objects.push_back(itr->getSource());
}

template<class Check>
void Trinity::WorldObjectListSearcher<Check>::Visit(GameObjectMapType &m)
{
    for (GameObjectMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
        if (itr->getSource()->InSamePhase(i_phaseMask))
            if (i_check(itr->getSource()))
                i_objects.push_back(itr->getSource());
}

template<class Check>
void Trinity::WorldObjectListSearcher<Check>::Visit(DynamicObjectMapType &m)
{
    for (DynamicObjectMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
        if (itr->getSource()->InSamePhase(i_phaseMask))
            if (i_check(itr->getSource()))
                i_objects.push_back(itr->getSource());
}

// Gameobject searchers

template<class Check>
void Trinity::GameObjectSearcher<Check>::Visit(GameObjectMapType &m)
{
    // already found
    if (i_object)
        return;

    for (GameObjectMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
        {
            i_object = itr->getSource();
            return;
        }
    }
}

template<class Check>
void Trinity::GameObjectLastSearcher<Check>::Visit(GameObjectMapType &m)
{
    for (GameObjectMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
            i_object = itr->getSource();
    }
}

template<class Check>
void Trinity::GameObjectListSearcher<Check>::Visit(GameObjectMapType &m)
{
    for (GameObjectMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
        if (itr->getSource()->InSamePhase(i_phaseMask))
            if (i_check(itr->getSource()))
                i_objects.push_back(itr->getSource());
}

// Unit searchers

template<class Check>
void Trinity::UnitSearcher<Check>::Visit(CreatureMapType &m)
{
    // already found
    if (i_object)
        return;

    for (CreatureMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
        {
            i_object = itr->getSource();
            return;
        }
    }
}

template<class Check>
void Trinity::UnitSearcher<Check>::Visit(PlayerMapType &m)
{
    // already found
    if (i_object)
        return;

    for (PlayerMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
        {
            i_object = itr->getSource();
            return;
        }
    }
}

template<class Check>
void Trinity::UnitLastSearcher<Check>::Visit(CreatureMapType &m)
{
    for (CreatureMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
            i_object = itr->getSource();
    }
}

template<class Check>
void Trinity::UnitLastSearcher<Check>::Visit(PlayerMapType &m)
{
    for (PlayerMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
            i_object = itr->getSource();
    }
}

template<class Check>
void Trinity::UnitListSearcher<Check>::Visit(PlayerMapType &m)
{
    for (PlayerMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
        if (itr->getSource()->InSamePhase(i_phaseMask))
            if (i_check(itr->getSource()))
                i_objects.push_back(itr->getSource());
}

template<class Check>
void Trinity::UnitListSearcher<Check>::Visit(CreatureMapType &m)
{
    for (CreatureMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
        if (itr->getSource()->InSamePhase(i_phaseMask))
            if (i_check(itr->getSource()))
                i_objects.push_back(itr->getSource());
}

// Creature searchers

template<class Check>
void Trinity::CreatureSearcher<Check>::Visit(CreatureMapType &m)
{
    // already found
    if (i_object)
        return;

    for (CreatureMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
        {
            i_object = itr->getSource();
            return;
        }
    }
}

template<class Check>
void Trinity::CreatureLastSearcher<Check>::Visit(CreatureMapType &m)
{
    for (CreatureMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
            i_object = itr->getSource();
    }
}

template<class Check>
void Trinity::CreatureListSearcher<Check>::Visit(CreatureMapType &m)
{
    for (CreatureMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
        if (itr->getSource()->InSamePhase(i_phaseMask))
            if (i_check(itr->getSource()))
                i_objects.push_back(itr->getSource());
}

template<class Check>
void Trinity::PlayerListSearcher<Check>::Visit(PlayerMapType &m)
{
    for (PlayerMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
        if (itr->getSource()->InSamePhase(i_phaseMask))
            if (i_check(itr->getSource()))
                i_objects.push_back(itr->getSource());
}

template<class Check>
void Trinity::PlayerSearcher<Check>::Visit(PlayerMapType &m)
{
    // already found
    if (i_object)
        return;

    for (PlayerMapType::iterator itr=m.begin(); itr != m.end(); ++itr)
    {
        if (!itr->getSource()->InSamePhase(i_phaseMask))
            continue;

        if (i_check(itr->getSource()))
        {
            i_object = itr->getSource();
            return;
        }
    }
}

template<class Builder>
void Trinity::LocalizedPacketDo<Builder>::operator()(Player* p)
{
    int32 loc_idx = p->GetSession()->GetSessionDbLocaleIndex();
    uint32 cache_idx = loc_idx+1;
    WorldPacket* data;

    // create if not cached yet
    if (i_data_cache.size() < cache_idx+1 || !i_data_cache[cache_idx])
    {
        if (i_data_cache.size() < cache_idx+1)
            i_data_cache.resize(cache_idx+1);

        data = new WorldPacket(SMSG_MESSAGECHAT, 200);

        i_builder(*data,loc_idx);

        i_data_cache[cache_idx] = data;
    }
    else
        data = i_data_cache[cache_idx];

    p->SendDirectMessage(data);
}

template<class Builder>
void Trinity::LocalizedPacketListDo<Builder>::operator()(Player* p)
{
    int32 loc_idx = p->GetSession()->GetSessionDbLocaleIndex();
    uint32 cache_idx = loc_idx+1;
    WorldPacketList* data_list;

    // create if not cached yet
    if (i_data_cache.size() < cache_idx+1 || i_data_cache[cache_idx].empty())
    {
        if (i_data_cache.size() < cache_idx+1)
            i_data_cache.resize(cache_idx+1);

        data_list = &i_data_cache[cache_idx];

        i_builder(*data_list,loc_idx);
    }
    else
        data_list = &i_data_cache[cache_idx];

    for (size_t i = 0; i < data_list->size(); ++i)
        p->SendDirectMessage((*data_list)[i]);
}

struct ObjectDistanceOrder : public std::binary_function<const WorldObject, const WorldObject, bool>
{
    const Unit* m_pSource;

    ObjectDistanceOrder(const Unit* pSource) : m_pSource(pSource) {};

    bool operator()(const WorldObject* pLeft, const WorldObject* pRight) const
    {
        return m_pSource->GetDistanceOrder(pLeft, pRight);
    }
};

struct ObjectDistanceOrderReversed : public std::binary_function<const WorldObject, const WorldObject, bool>
{
    const Unit* m_pSource;

    ObjectDistanceOrderReversed(const Unit* pSource) : m_pSource(pSource) {};

    bool operator()(const WorldObject* pLeft, const WorldObject* pRight) const
    {
        return !m_pSource->GetDistanceOrder(pLeft, pRight);
    }
};

#endif                                                      // TRINITY_GRIDNOTIFIERSIMPL_H