/**
 * @file llimhandler.cpp
 * @brief Notification Handler Class for IM notifications
 *
 * $LicenseInfo:firstyear=2000&license=viewerlgpl$
 * 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" // must be first include

#include "llnotificationhandler.h"

#include "llagentdata.h"
#include "llnotifications.h"
#include "lltoastimpanel.h"
#include "llviewerwindow.h"

using namespace LLNotificationsUI;

extern void process_dnd_im(const LLSD& notification);

//--------------------------------------------------------------------------
LLIMHandler::LLIMHandler()
:   LLCommunicationNotificationHandler("IM Notifications", "notifytoast")
{
    // Getting a Channel for our notifications
    mChannel = LLChannelManager::getInstance()->createNotificationChannel()->getHandle();
}

//--------------------------------------------------------------------------
LLIMHandler::~LLIMHandler()
{
}

//--------------------------------------------------------------------------
void LLIMHandler::initChannel()
{
    S32 channel_right_bound = gViewerWindow->getWorldViewRectScaled().mRight - gSavedSettings.getS32("NotificationChannelRightMargin");
    mChannel.get()->init(channel_right_bound - NOTIFY_BOX_WIDTH, channel_right_bound);
}

//--------------------------------------------------------------------------
bool LLIMHandler::processNotification(const LLNotificationPtr& notification, bool should_log)
{
    if(notification->isDND())
    {
        LLSD data = notification->asLLSD(); //don't need this if retrieve needed data from notification getters
        process_dnd_im(data);
    }
    else
    {
        if(mChannel.isDead())
        {
            return false;
        }

        // arrange a channel on a screen
        if(!mChannel.get()->getVisible())
        {
            initChannel();
        }

        LLSD substitutions = notification->getSubstitutions();

        // According to comments in LLIMMgr::addMessage(), if we get message
        // from ourselves, the sender id is set to null. This fixes EXT-875.
        LLUUID avatar_id = substitutions["FROM_ID"].asUUID();
        if (avatar_id.isNull())
            avatar_id = gAgentID;

        LLToastIMPanel::Params im_p;
        im_p.notification = notification;
        im_p.avatar_id = avatar_id;
        im_p.from = substitutions["FROM"].asString();
        im_p.time = substitutions["TIME"].asString();
        im_p.message = substitutions["MESSAGE"].asString();
        im_p.session_id = substitutions["SESSION_ID"].asUUID();

        LLToastIMPanel* im_box = new LLToastIMPanel(im_p);

        LLToast::Params p;
        p.notif_id = notification->getID();
        p.session_id = im_p.session_id;
        p.notification = notification;
        p.panel = im_box;
        p.can_be_stored = false;
        LLScreenChannel* channel = dynamic_cast<LLScreenChannel*>(mChannel.get());
        if(channel)
            channel->addToast(p);
    }

    return false;
}