#ifndef OSGINVOKER_H_H6T4R8HU
#define OSGINVOKER_H_H6T4R8HU

#include <uscxml/Interpreter.h>
#include <DOM/Events/MutationEvent.hpp>
#include <DOM/Events/EventListener.hpp>
#include <DOM/Events/Event.hpp>
#include "CompositeDisplay.h"
#include <osg/MatrixTransform>
#include <osgDB/ReadFile>
#include <set>

#ifdef BUILD_AS_PLUGINS
#include "uscxml/plugins/Plugins.h"
#endif

namespace uscxml {

class OSGInvoker : public InvokerImpl, public Arabica::DOM::Events::EventListener<std::string> {
public:
	OSGInvoker();
	virtual ~OSGInvoker();
	virtual boost::shared_ptr<InvokerImpl> create(InterpreterImpl* interpreter);

	virtual std::set<std::string> getNames() {
		std::set<std::string> names;
		names.insert("3d");
		names.insert("scenegraph");
		names.insert("http://uscxml.tk.informatik.tu-darmstadt.de/#3d");
		return names;
	}

	virtual Data getDataModelVariables();
	virtual void send(const SendRequest& req);
	virtual void cancel(const std::string sendId);
	virtual void invoke(const InvokeRequest& req);
	virtual void handleEvent(Arabica::DOM::Events::Event<std::string>& event);

	virtual void runOnMainThread();

protected:
	void processDisplay(const Arabica::DOM::Node<std::string>& element);
	void updateDisplay(osg::Node* node, Arabica::DOM::Events::Event<std::string>& event);
	void processViewport(const Arabica::DOM::Node<std::string>& element);
	void updateViewport(osg::Node* node, Arabica::DOM::Events::Event<std::string>& event);
	void processCamera(const Arabica::DOM::Node<std::string>& element);
	void updateCamera(osg::Node* node, Arabica::DOM::Events::Event<std::string>& event);

	void processTranslation(const Arabica::DOM::Node<std::string>& element);
	void updateTranslation(osg::Node* node, Arabica::DOM::Events::Event<std::string>& event);

	void processRotation(const Arabica::DOM::Node<std::string>& element);
	void updateRotation(osg::Node* node, Arabica::DOM::Events::Event<std::string>& event);
	static osg::Matrix rotationFromElement(const Arabica::DOM::Node<std::string>& element);

	void processScale(const Arabica::DOM::Node<std::string>& element);
	void updateScale(osg::Node* node, Arabica::DOM::Events::Event<std::string>& event);
	void processNode(const Arabica::DOM::Node<std::string>& element);
	void updateNode(osg::Node* node, Arabica::DOM::Events::Event<std::string>& event);

	void processChildren(const std::set<std::string>& validChildren, const Arabica::DOM::Node<std::string>& element);

	void getViewport(const Arabica::DOM::Node<std::string>& element,
	                 unsigned int& x,
	                 unsigned int& y,
	                 unsigned int& width,
	                 unsigned int& height,
	                 int& screenId);

	void getViewport(const Arabica::DOM::Node<std::string>& element,
	                 unsigned int& x,
	                 unsigned int& y,
	                 unsigned int& width,
	                 unsigned int& height,
	                 CompositeDisplay* display);

	void getViewport(const Arabica::DOM::Node<std::string>& element,
	                 unsigned int& x,
	                 unsigned int& y,
	                 unsigned int& width,
	                 unsigned int& height,
	                 unsigned int fullWidth,
	                 unsigned int fullHeight);

	osgViewer::View* getView(const Arabica::DOM::Node<std::string>& element);

	std::map<Arabica::DOM::Node<std::string>, CompositeDisplay*> _displays;
	typedef std::map<Arabica::DOM::Node<std::string>, CompositeDisplay*> _displays_t;

	std::map<Arabica::DOM::Node<std::string>, osgViewer::View*> _views;
	typedef std::map<Arabica::DOM::Node<std::string>, osgViewer::View*> _views_t;

	std::map<Arabica::DOM::Node<std::string>, osg::Node*> _nodes;
	typedef std::map<Arabica::DOM::Node<std::string>, osg::Node*> _nodes_t;

	tthread::recursive_mutex _mutex;
};

#ifdef BUILD_AS_PLUGINS
PLUMA_INHERIT_PROVIDER(OSGInvoker, InvokerImpl);
#endif

}


#endif /* end of include guard: OSGINVOKER_H_H6T4R8HU */