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

#pragma once

#include <memory>
#include <vector>

#include <boost/signals2.hpp>

#include <Swiften/Base/API.h>
#include <Swiften/Elements/Stanza.h>

namespace Swift {
    class XMPPLayer;
    class LowLayer;
    class StreamLayer;

    class SWIFTEN_API StreamStack {
        public:
            StreamStack(XMPPLayer* xmppLayer, LowLayer* physicalLayer);
            ~StreamStack();

            void addLayer(StreamLayer*);

            XMPPLayer* getXMPPLayer() const {
                return xmppLayer_;
            }

            template<typename T> T* getLayer() {
                for (auto& i : layers_) {
                    T* layer = dynamic_cast<T*>(i);
                    if (layer) {
                        return layer;
                    }
                }
                return nullptr;
            }

        private:
            XMPPLayer* xmppLayer_;
            LowLayer* physicalLayer_;
            std::vector<StreamLayer*> layers_;
    };
}