/**
 * libtransport -- C++ library for easy XMPP Transports development
 *
 * Copyright (C) 2011, Jan Kaluza <hanzz.k@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
 */

#include "transport/user.h"
#include "transport/transport.h"
#include "transport/storagebackend.h"
#include "transport/rostermanager.h"
#include "transport/usermanager.h"
#include "transport/conversationmanager.h"
#include "Swiften/Swiften.h"
#include "Swiften/Server/ServerStanzaChannel.h"
#include "Swiften/Elements/StreamError.h"

namespace Transport {

User::User(const Swift::JID &jid, UserInfo &userInfo, Component *component, UserManager *userManager) {
	m_jid = jid;

	m_component = component;
	m_presenceOracle = component->m_presenceOracle;
	m_entityCapsManager = component->m_entityCapsManager;
	m_userManager = userManager;
	m_userInfo = userInfo;
	m_connected = false;
	m_readyForConnect = false;

	m_reconnectTimer = m_component->getFactories()->getTimerFactory()->createTimer(10000);
	m_reconnectTimer->onTick.connect(boost::bind(&User::onConnectingTimeout, this)); 

	m_rosterManager = new RosterManager(this, m_component);
	m_conversationManager = new ConversationManager(this, m_component);
}

User::~User(){
	m_reconnectTimer->stop();
	delete m_rosterManager;
	delete m_conversationManager;
}

const Swift::JID &User::getJID() {
	return m_jid;
}

void User::handlePresence(Swift::Presence::ref presence) {
	Swift::Presence::ref highest = m_presenceOracle->getHighestPriorityPresence(m_jid.toBare());

	if (!m_connected) {
		// we are not connected to legacy network, so we should do it when disco#info arrive :)
		if (m_readyForConnect == false) {
			
			// Forward status message to legacy network, but only if it's sent from active resource
// 					if (m_activeResource == presence->getFrom().getResource().getUTF8String()) {
// 						forwardStatus(presenceShow, stanzaStatus);
// 					}
			boost::shared_ptr<Swift::CapsInfo> capsInfo = presence->getPayload<Swift::CapsInfo>();
			if (capsInfo && capsInfo->getHash() == "sha-1") {
				if (m_entityCapsManager->getCaps(presence->getFrom()) != Swift::DiscoInfo::ref()) {
					m_readyForConnect = true;
					onReadyToConnect();
				}
			}
			else {
				m_reconnectTimer->start();
			}
		}
	}


	if (highest) {
		highest->setTo(presence->getFrom().toBare());
		highest->setFrom(m_component->getJID());
		m_component->getStanzaChannel()->sendPresence(highest);
	}
	else {
		Swift::Presence::ref response = Swift::Presence::create();
		response->setTo(m_jid.toBare());
		response->setFrom(m_component->getJID());
		response->setType(Swift::Presence::Unavailable);
		m_component->getStanzaChannel()->sendPresence(response);
	}
}

void User::handleSubscription(Swift::Presence::ref presence) {
	m_rosterManager->handleSubscription(presence);
}

void User::onConnectingTimeout() {
	if (m_connected || m_readyForConnect)
		return;
	m_reconnectTimer->stop();
	m_readyForConnect = true;
	onReadyToConnect();
}

void User::handleDisconnected(const std::string &error) {
	onDisconnected();

	boost::shared_ptr<Swift::Message> msg(new Swift::Message());
	msg->setBody(error);
	msg->setTo(m_jid.toBare());
	msg->setFrom(m_component->getJID());
	m_component->getStanzaChannel()->sendMessage(msg);

	if (m_component->inServerMode()) {
		dynamic_cast<Swift::ServerStanzaChannel *>(m_component->getStanzaChannel())->finishSession(m_jid, boost::shared_ptr<Swift::Element>(new Swift::StreamError()));
	}

	m_userManager->removeUser(this);
}

}