/**
 * @file llnotificationtiphandler.cpp
 * @brief Notification Handler Class for Notification Tips
 *
 * $LicenseInfo:firstyear=2000&license=viewerlgpl$
 * 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 "llfloaterreg.h"
#include "llfloaterimnearbychat.h"
#include "llfloaterimnearbychat.h"
#include "llnotificationhandler.h"
#include "llnotifications.h"
#include "lltoastnotifypanel.h"
#include "llviewercontrol.h"
#include "llviewerwindow.h"
#include "llnotificationmanager.h"
#include "llpaneltiptoast.h"

using namespace LLNotificationsUI;

//--------------------------------------------------------------------------
LLTipHandler::LLTipHandler()
:   LLSystemNotificationHandler("NotificationTips", "notifytip")
{
    // Getting a Channel for our notifications
    LLScreenChannel* channel = LLChannelManager::getInstance()->createNotificationChannel();
    if(channel)
    {
        mChannel = channel->getHandle();
    }
}

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

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

//--------------------------------------------------------------------------
bool LLTipHandler::processNotification(const LLNotificationPtr& notification, bool should_log)
{
    if(mChannel.isDead())
    {
        return false;
    }

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

        // archive message in nearby chat
    if (notification->canLogToChat())
    {
        LLHandlerUtil::logToNearbyChat(notification, CHAT_SOURCE_SYSTEM);
    }

    std::string session_name = notification->getPayload()["SESSION_NAME"];
    const std::string name = LLHandlerUtil::getSubstitutionOriginalName(notification);
    if (session_name.empty())
    {
        session_name = name;
    }
    LLUUID from_id = notification->getPayload()["from_id"];
    if (notification->canLogToIM())
    {
        LLHandlerUtil::logToIM(IM_NOTHING_SPECIAL, session_name, name,
                notification->getMessage(), from_id, from_id);
    }

    if (notification->canLogToIM() && notification->hasFormElements())
    {
        LLHandlerUtil::spawnIMSession(name, from_id);
    }

    if (notification->canLogToIM() && LLHandlerUtil::isIMFloaterOpened(notification))
    {
        return false;
    }

    LLToastPanel* notify_box = LLToastPanel::buidPanelFromNotification(notification);

    LLToast::Params p;
    p.notif_id = notification->getID();
    p.notification = notification;
    p.panel = notify_box;
    p.is_tip = true;
    p.can_be_stored = false;

    LLDate cur_time = LLDate::now();
    LLDate exp_time = notification->getExpiration();
    if (exp_time > cur_time)
    {
        // we have non-default expiration time - keep visible until expires
        p.lifetime_secs = (F32)(exp_time.secondsSinceEpoch() - cur_time.secondsSinceEpoch());
    }
    else
    {
        // use default time
        p.lifetime_secs = (F32)gSavedSettings.getS32("NotificationTipToastLifeTime");
    }

    LLScreenChannel* channel = dynamic_cast<LLScreenChannel*>(mChannel.get());
    if(channel)
        channel->addToast(p);
    return false;
}