/** 
 * @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"

#include "llavatarnamecache.h"
#include "llconsole.h"
#include "llfloaterreg.h"
// <FS:Zi> Remove floating chat bar
// #include "llnearbychat.h"
#include "llfloaternearbychat.h"
// </FS:Zi>
#include "rlvhandler.h"
#include "lggcontactsets.h"

#include "llimview.h" // FS:LO FIRE-5230 - Chat Console Improvement: Replacing the "IM" in front of group chat messages with the actual group name

using namespace LLNotificationsUI;

//--------------------------------------------------------------------------
LLIMHandler::LLIMHandler(e_notification_type type, const LLSD& id)
{
	mType = type;

	// Getting a Channel for our notifications
	mChannel = LLChannelManager::getInstance()->createNotificationChannel()->getHandle();

	FSLogImToChatConsole = gSavedSettings.getBOOL("FSLogImToChatConsole");
	gSavedSettings.getControl("FSLogImToChatConsole")->getSignal()->connect(boost::bind(&LLIMHandler::updateFSLogImToChatConsole, this, _2));
}

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

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

void LLIMHandler::updateFSLogImToChatConsole(const LLSD &data)
{
	FSLogImToChatConsole = data.asBoolean();
}


//--------------------------------------------------------------------------
bool LLIMHandler::processNotification(const LLSD& notify)
{
	if(mChannel.isDead())
	{
		return false;
	}

	LLNotificationPtr notification = LLNotifications::instance().find(notify["id"].asUUID());

	if(!notification)
		return false;

	static LLCachedControl<bool> fsUseNearbyChatConsole(gSavedSettings, "FSUseNearbyChatConsole");
	if (FSLogImToChatConsole && fsUseNearbyChatConsole)
	{
		if(notify["sigtype"].asString() == "add" || notify["sigtype"].asString() == "change")
		{
			LLSD substitutions = notification->getSubstitutions();

			// FS:LO FIRE-5230 - Chat Console Improvement: Replacing the "IM" in front of group chat messages with the actual group name
			std::string group;
			LLIMModel::LLIMSession* session = LLIMModel::getInstance()->findIMSession(substitutions["SESSION_ID"]);
			if(session)
			{
				S32 groupNameLength = gSavedSettings.getS32("FSShowGroupNameLength");
				if(groupNameLength != 0 && session->isGroupSessionType())
				{
					group = session->mName.substr(0,groupNameLength);
				}
			}
			// FS:LO FIRE-5230 - Chat Console Improvement: Replacing the "IM" in front of group chat messages with the actual group name

			// Filter notifications with empty ID and empty message
			if (substitutions["FROM_ID"].asString() == "" && substitutions["MESSAGE"].asString() == "") return false;

			// Ansarial, replace long lock of local DN handling with the following call
			//LLAvatarNameCache::get(LLUUID(substitutions["FROM_ID"].asString()), boost::bind(&LLIMHandler::onAvatarNameLookup, this, _1, _2, substitutions["MESSAGE"].asString()));
			LLAvatarNameCache::get(LLUUID(substitutions["FROM_ID"].asString()), boost::bind(&LLIMHandler::onAvatarNameLookup, this, _1, _2, substitutions["MESSAGE"].asString(),group)); // FS:LO FIRE-5230 - Chat Console Improvement: Replacing the "IM" in front of group chat messages with the actual group name
		}
	}
	else
	{
		// arrange a channel on a screen
		if(!mChannel.get()->getVisible())
		{
			initChannel();
		}

		if(notify["sigtype"].asString() == "add" || notify["sigtype"].asString() == "change")
		{
			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;
			p.on_delete_toast = boost::bind(&LLIMHandler::onDeleteToast, this, _1);
			LLScreenChannel* channel = dynamic_cast<LLScreenChannel*>(mChannel.get());
			if(channel)
				channel->addToast(p);

			// send a signal to the counter manager;
			mNewNotificationSignal();
		}
		else if (notify["sigtype"].asString() == "delete")
		{
			mChannel.get()->killToastByNotificationID(notification->getID());
		}
	}
	return false;
}

//--------------------------------------------------------------------------
void LLIMHandler::onDeleteToast(LLToast* toast)
{
	// send a signal to the counter manager
	mDelNotificationSignal();
}

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

// Ansariel: Name lookup callback for chat console output
// FS:LO FIRE-5230 - Chat Console Improvement: Replacing the "IM" in front of group chat messages with the actual group name
//void LLIMHandler::onAvatarNameLookup(const LLUUID& agent_id, const LLAvatarName& av_name, const std::string& message_str)
void LLIMHandler::onAvatarNameLookup(const LLUUID& agent_id, const LLAvatarName& av_name, const std::string& message_str, const std::string& group)
{
	std::string senderName;
	std::string message(message_str);
	std::string delimiter = ": ";
	std::string prefix = message.substr(0, 4);
	LLStringUtil::toLower(prefix);

	// irc styled messages
	if (prefix == "/me " || prefix == "/me'")
	{
		delimiter = LLStringUtil::null;
		message = message.substr(3);
	}

	static LLCachedControl<bool> nameTagShowUsernames(gSavedSettings, "NameTagShowUsernames");
	static LLCachedControl<bool> useDisplayNames(gSavedSettings, "UseDisplayNames");
	if (nameTagShowUsernames && useDisplayNames)
	{
		senderName = av_name.getCompleteName();
	}
	else if (useDisplayNames)
	{
		senderName = av_name.mDisplayName;
	}
	else
	{
		senderName = av_name.getLegacyName();
	}

	if (rlv_handler_t::isEnabled() && gRlvHandler.hasBehaviour(RLV_BHVR_SHOWNAMES))
	{
		senderName = RlvStrings::getAnonym(senderName);
	}

	// FS:LO FIRE-5230 - Chat Console Improvement: Replacing the "IM" in front of group chat messages with the actual group name
	if(group != "")
	{
		senderName = "[" + group + "] " + senderName;
	}
	// FS:LO FIRE-5230 - Chat Console Improvement: Replacing the "IM" in front of group chat messages with the actual group name

	LLColor4 textColor = LLUIColorTable::instance().getColor("AgentChatColor");
	//color based on contact sets prefs
	if(LGGContactSets::getInstance()->hasFriendColorThatShouldShow(agent_id,TRUE))
	{
		textColor = LGGContactSets::getInstance()->getFriendColor(agent_id);
	}
	gConsole->addConsoleLine("IM: " + senderName + delimiter + message, textColor);

	LLFloaterNearbyChat* nearby_chat = LLFloaterReg::getTypedInstance<LLFloaterNearbyChat>("nearby_chat", LLSD());
	gConsole->setVisible(!nearby_chat->getVisible());
}