/**
 * @file llnotificationscripthandler.cpp
 * @brief Notification Handler Class for Simple Notifications and 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 "llagent.h"
#include "llnotificationhandler.h"
#include "lltoastnotifypanel.h"
#include "llviewercontrol.h"
#include "llviewerwindow.h"
#include "llnotificationmanager.h"
#include "llnotifications.h"
#include "llscriptfloater.h"
#include "llavatarname.h"
#include "llavatarnamecache.h"

using namespace LLNotificationsUI;

//--------------------------------------------------------------------------
LLScriptHandler::LLScriptHandler()
:   LLSystemNotificationHandler("Notifications", "notify")
{
    // Getting a Channel for our notifications
    LLScreenChannel* channel = LLChannelManager::getInstance()->createNotificationChannel();
    if(channel)
    {
        channel->setControlHovering(true);
        mChannel = channel->getHandle();
    }
}

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

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

//--------------------------------------------------------------------------
void LLScriptHandler::addToastWithNotification(const LLNotificationPtr& notification)
{
    LL_PROFILE_ZONE_SCOPED
    LLToastPanel* notify_box = LLToastPanel::buidPanelFromNotification(notification);

    LLToast::Params p;
    p.notif_id = notification->getID();
    p.notification = notification;
    p.panel = notify_box;
    p.on_delete_toast = boost::bind(&LLScriptHandler::onDeleteToast, this, _1);
    p.can_fade = notification->canFadeToast();
    if(gAgent.isDoNotDisturb())
    {
        p.force_show = notification->getName() == "SystemMessage"
                        ||  notification->getName() == "GodMessage"
                        || notification->getPriority() >= NOTIFICATION_PRIORITY_HIGH;
    }

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

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

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

    if (should_log && notification->canLogToIM())
    {
        LLHandlerUtil::logToIMP2P(notification);
    }

    if(notification->hasFormElements() && !notification->canShowToast())
    {
        LLScriptFloaterManager::getInstance()->onAddNotification(notification->getID());
    }
    else if (notification->canShowToast())
    {
        addToastWithNotification(notification);
    }

    return false;
}

void LLScriptHandler::onChange( LLNotificationPtr notification )
{
    LLScreenChannel* channel = dynamic_cast<LLScreenChannel*>(mChannel.get());
    if (channel)
    {
        channel->removeToastByNotificationID(notification->getID());
        addToastWithNotification(notification);
    }
}

void LLScriptHandler::onDelete( LLNotificationPtr notification )
{
    if(notification->hasFormElements() && !notification->canShowToast())
    {
        LLScriptFloaterManager::getInstance()->onRemoveNotification(notification->getID());
    }
    else
    {
        mChannel.get()->removeToastByNotificationID(notification->getID());
    }
}


//--------------------------------------------------------------------------

void LLScriptHandler::onDeleteToast(LLToast* toast)
{
    // send a signal to a listener to let him perform some action
    // in this case listener is a SysWellWindow and it will remove a corresponding item from its list
    LLNotificationPtr notification = LLNotifications::getInstance()->find(toast->getNotificationID());

    if( notification && notification->hasFormElements() && !notification->canShowToast())
    {
        LLScriptFloaterManager::getInstance()->onRemoveNotification(notification->getID());
    }

}