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/**
 * @file llrecentpeople.cpp
 * @brief List of people with which the user has recently interacted.
 *
 * $LicenseInfo:firstyear=2009&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"

#include "llrecentpeople.h"
#include "llgroupmgr.h"

#include "llagent.h"

using namespace LLOldEvents;

bool LLRecentPeople::add(const LLUUID& id, const LLSD& userdata)
{
    if (id == gAgent.getID())
        return false;

    bool is_not_group_id = LLGroupMgr::getInstance()->getGroupData(id) == NULL;

    if (is_not_group_id)
    {
        //[] instead of insert to replace existing id->llsd["date"] with new date value
        mPeople[id] = userdata;
        mChangedSignal();
    }

    return is_not_group_id;
}

bool LLRecentPeople::contains(const LLUUID& id) const
{
    return mPeople.find(id) != mPeople.end();
}

void LLRecentPeople::get(uuid_vec_t& result) const
{
    result.clear();
    for (recent_people_t::const_iterator pos = mPeople.begin(); pos != mPeople.end(); ++pos)
        result.push_back((*pos).first);
}

const LLDate LLRecentPeople::getDate(const LLUUID& id) const
{
    recent_people_t::const_iterator it = mPeople.find(id);
    if (it!= mPeople.end()) return it->second["date"].asDate();

    static LLDate no_date = LLDate();
    return no_date;
}

const LLSD& LLRecentPeople::getData(const LLUUID& id) const
{
    recent_people_t::const_iterator it = mPeople.find(id);

    if (it != mPeople.end())
        return it->second;

    static LLSD no_data = LLSD();
    return no_data;
}

// virtual
bool LLRecentPeople::handleEvent(LLPointer<LLEvent> event, const LLSD& userdata)
{
    (void) userdata;
    add(event->getValue().asUUID());
    return true;
}

void LLRecentPeople::updateAvatarsArrivalTime(uuid_vec_t& uuids)
{
    id_to_time_map_t buf = mAvatarsArrivalTime;
    mAvatarsArrivalTime.clear();

    for (uuid_vec_t::const_iterator id_it = uuids.begin(); id_it != uuids.end(); ++id_it)
    {
        if (buf.find(*id_it) != buf.end())
        {
            mAvatarsArrivalTime[*id_it] = buf[*id_it];
        }
        else
        {
            mAvatarsArrivalTime[*id_it] = LLDate::now().secondsSinceEpoch();
        }
    }
}

F32 LLRecentPeople::getArrivalTimeByID(const LLUUID& id)
{
    id_to_time_map_t::const_iterator it = mAvatarsArrivalTime.find(id);

    if (it != mAvatarsArrivalTime.end())
    {
        return it->second;
    }
    return LLDate::now().secondsSinceEpoch();
}