#ifndef shaveVrayRenderer_h
#define shaveVrayRenderer_h

// Shave and a Haircut
// (c) 2019 Epic Games
// US Patent 6720962

#include <maya/MSelectionList.h>
#include <maya/MString.h>
#include <maya/MStringArray.h>
#include <maya/MTypes.h>

#include "shaveConstant.h"
#include "shaveVrayNode.h"
#include "shaveRenderer.h"

class shaveHairShape;

#ifdef USE_VRAY

class shaveVrayRenderer : public shaveRenderer
{
public:
					shaveVrayRenderer();
	virtual			~shaveVrayRenderer();

	virtual	void	renderStart();
	virtual	void	renderEnd();
	//
	// these will not do any job - vrayKeyframeCallback will be used instead 
	//
	virtual	void	frameStart(const shaveGlobals::Globals& g);
	virtual	void	timeChange(const MTime& newTime);
	virtual	void	frameEnd(const shaveGlobals::Globals& g);

	
	virtual	bool	isGeomNode(const shaveHairShape* nodePtr) const;

	virtual	void	render(
					float frame,
					shaveConstant::ShutterState shutter,
					const MDagPath& camera
				);

	//
	//This should be used instead of frameStart - timeChange - frameEnd
	//will be called before each keyframe is created 
	//but after the current time is moved for the current keyframe.
	void vrayKeyframeCallback();

//************************************************
//
//		Helper Methods
//
//************************************************

	MString     fileName;
	bool		exportOK;
	bool		ioError;

	MSelectionList list;

protected:
	enum TimeState
	{
		kAwaitingNothing,
		kAwaitingShutterOpen,
		//kAwaitingShutterOpenSwap,
		kAwaitingCenterFrame,
		kAwaitingShutterClose,
		kAwaitingShutterBoth
	};

	TimeState	mTimeState;
	//bool		mIsAnimation;
	//MTime		mFirstFrame;
	//bool		mIsFirstFrame;

	MString     tempDra;
	
};

#endif //USE_VRAY

#endif