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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 <Swiften/Parser/PayloadParsers/ResultSetParser.h>
#include <boost/optional.hpp>
#include <boost/lexical_cast.hpp>
#include <Swiften/Parser/PayloadParserFactory.h>
#include <Swiften/Parser/PayloadParserFactoryCollection.h>

using namespace Swift;

ResultSetParser::ResultSetParser() : level_(TopLevel) {
}

void ResultSetParser::handleStartElement(const std::string& element, const std::string& ns, const AttributeMap& attributes) {
	currentText_ = "";
	if (level_ == PayloadLevel) {
		if (element == "first" && ns == "http://jabber.org/protocol/rsm") {
			if (boost::optional<std::string> attributeValue = attributes.getAttributeValue("index")) {
				try {
					getPayloadInternal()->setFirstIDIndex(boost::lexical_cast<int>(*attributeValue));
				} catch(boost::bad_lexical_cast&) {
				}
			}
		}
	}
	++level_;
}

void ResultSetParser::handleEndElement(const std::string& element, const std::string&) {
	--level_;
	if (level_ == PayloadLevel) {
		if (element == "max") {
			try {
				getPayloadInternal()->setMaxItems(boost::lexical_cast<int>(currentText_));
			} catch(boost::bad_lexical_cast&) {
			}
		} else if (element == "count") {
			try {
				getPayloadInternal()->setCount(boost::lexical_cast<int>(currentText_));
			} catch(boost::bad_lexical_cast&) {
			}
		} else if (element == "index") {
			try {
				getPayloadInternal()->setIndex(boost::lexical_cast<int>(currentText_));
			} catch(boost::bad_lexical_cast&) {
			}
		} else if (element == "first") {
			getPayloadInternal()->setFirstID(currentText_);
		} else if (element == "last") {
			getPayloadInternal()->setLastID(currentText_);
		} else if (element == "before") {
			getPayloadInternal()->setBefore(currentText_);
		} else if (element == "after") {
			getPayloadInternal()->setAfter(currentText_);
		}
	}
}

void ResultSetParser::handleCharacterData(const std::string& data) {
	currentText_ += data;
}