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/*
 * Copyright (c) 2010-2016 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#pragma once

#include <cassert>

#include <Swiften/Elements/Payload.h>
#include <Swiften/Parser/PayloadParser.h>
#include <Swiften/Parser/PayloadParsers/FullPayloadParserFactoryCollection.h>
#include <Swiften/Parser/PlatformXMLParserFactory.h>
#include <Swiften/Parser/XMLParser.h>
#include <Swiften/Parser/XMLParserClient.h>

namespace Swift {
    class PayloadsParserTester : public XMLParserClient {
        public:
            PayloadsParserTester() : level(0) {
                xmlParser = PlatformXMLParserFactory().createXMLParser(this);
            }

            bool parse(const std::string& data) {
                return xmlParser->parse(data);
            }

            virtual void handleStartElement(const std::string& element, const std::string& ns, const AttributeMap& attributes) {
                if (level == 0) {
                    assert(!payloadParser.get());
                    PayloadParserFactory* payloadParserFactory = factories.getPayloadParserFactory(element, ns, attributes);
                    assert(payloadParserFactory);
                    payloadParser.reset(payloadParserFactory->createPayloadParser());
                }
                payloadParser->handleStartElement(element, ns, attributes);
                level++;
            }

            virtual void handleEndElement(const std::string& element, const std::string& ns) {
                level--;
                payloadParser->handleEndElement(element, ns);
            }

            virtual void handleCharacterData(const std::string& data) {
                payloadParser->handleCharacterData(data);
            }

            std::shared_ptr<Payload> getPayload() const {
                return payloadParser->getPayload();
            }

            template<typename T>
            std::shared_ptr<T> getPayload() const {
                return std::dynamic_pointer_cast<T>(payloadParser->getPayload());
            }

        private:
            std::unique_ptr<XMLParser> xmlParser;
            FullPayloadParserFactoryCollection factories;
            std::shared_ptr<PayloadParser> payloadParser;
            int level;
    };
}