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/*
 * Copyright (c) 2014 Kevin Smith and Remko Tronçon
 * Licensed under the GNU General Public License v3.
 * See Documentation/Licenses/GPLv3.txt for more information.
 */

#include <boost/lexical_cast.hpp>
#include <boost/smart_ptr/make_shared.hpp>
#include <Swiften/Serializer/XML/XMLElement.h>
#include <Swiften/Serializer/XML/XMLRawTextNode.h>
#include <Swiften/Serializer/PayloadSerializers/ResultSetSerializer.h>

using namespace Swift;

ResultSetSerializer::ResultSetSerializer() {
}

ResultSetSerializer::~ResultSetSerializer() {
}

std::string ResultSetSerializer::serializePayload(boost::shared_ptr<ResultSet> payload) const {
	if (!payload) {
		return "";
	}

	XMLElement element("set", "http://jabber.org/protocol/rsm");

	if (payload->getMaxItems()) {
		element.addNode(boost::make_shared<XMLElement>("max", "", boost::lexical_cast<std::string>(*payload->getMaxItems())));
	}

	if (payload->getCount()) {
		element.addNode(boost::make_shared<XMLElement>("count", "", boost::lexical_cast<std::string>(*payload->getCount())));
	}

	if (payload->getFirstID()) {
		boost::shared_ptr<XMLElement> firstElement = boost::make_shared<XMLElement>("first", "", *payload->getFirstID());
		if (payload->getFirstIDIndex()) {
			firstElement->setAttribute("index", boost::lexical_cast<std::string>(*payload->getFirstIDIndex()));
		}
		element.addNode(firstElement);
	}

	if (payload->getLastID()) {
		element.addNode(boost::make_shared<XMLElement>("last", "", *payload->getLastID()));
	}

	if (payload->getAfter()) {
		element.addNode(boost::make_shared<XMLElement>("after", "", *payload->getAfter()));
	}

	return element.serialize();
}