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

#pragma once

#include <boost/noncopyable.hpp>
#include <boost/shared_ptr.hpp>

#include <Swiften/Base/API.h>
#include <Swiften/Base/SafeByteArray.h>
#include <Swiften/Base/boost_bsignals.h>
#include <Swiften/Elements/StreamType.h>
#include <Swiften/Elements/ToplevelElement.h>
#include <Swiften/Parser/XMPPParserClient.h>
#include <Swiften/StreamStack/HighLayer.h>

namespace Swift {
	class ProtocolHeader;
	class XMPPParser;
	class PayloadParserFactoryCollection;
	class XMPPSerializer;
	class PayloadSerializerCollection;
	class XMLParserFactory;
	class BOSHSessionStream;

	class SWIFTEN_API XMPPLayer : public XMPPParserClient, public HighLayer, boost::noncopyable {
		friend class BOSHSessionStream;
		public:
			XMPPLayer(
					PayloadParserFactoryCollection* payloadParserFactories,
					PayloadSerializerCollection* payloadSerializers,
					XMLParserFactory* xmlParserFactory,
					StreamType streamType,
					bool setExplictNSonTopLevelElements = false);
			virtual ~XMPPLayer();

			void writeHeader(const ProtocolHeader& header);
			void writeFooter();
			void writeElement(boost::shared_ptr<ToplevelElement>);
			void writeData(const std::string& data);

			void resetParser();

		protected:
			void handleDataRead(const SafeByteArray& data);
			void writeDataInternal(const SafeByteArray& data);

		public:
			boost::signal<void (const ProtocolHeader&)> onStreamStart;
			boost::signal<void (boost::shared_ptr<ToplevelElement>)> onElement;
			boost::signal<void (const SafeByteArray&)> onWriteData;
			boost::signal<void (const SafeByteArray&)> onDataRead;
			boost::signal<void ()> onError;

		private:
			void handleStreamStart(const ProtocolHeader&);
			void handleElement(boost::shared_ptr<ToplevelElement>);
			void handleStreamEnd();

			void doResetParser();

		private:
			PayloadParserFactoryCollection* payloadParserFactories_;
			XMPPParser* xmppParser_;
			PayloadSerializerCollection* payloadSerializers_;
			XMLParserFactory* xmlParserFactory_;
			XMPPSerializer* xmppSerializer_;
			bool setExplictNSonTopLevelElements_;
			bool resetParserAfterParse_;
			bool inParser_;
	};
}