// $Id$
//
//				File: DTOFPoint_factory.h
// Created: Tue Oct 18 09:50:52 EST 2005
// Creator: remitche (on Linux mantrid00 2.4.20-18.8smp i686)
//

#ifndef _DTOFPoint_factory_
#define _DTOFPoint_factory_

#include "JANA/JFactory.h"
#include "DTOFGeometry_factory.h"
#include "DTOFPoint.h"
#include "DTOFPaddleHit.h"
#include <deque>

/// \htmlonly
/// <A href="index.html#legend">
///	<IMG src="CORE.png" width="100">
///	</A>
/// \endhtmlonly

/// 2-plane (4-fold) TOF coincidences. The 2-hit coincidences come from DTOFPaddleHit objects
/// which are combined into coincidnces between the two planes to form 4-D space points
/// which are represented by DTOFPoint objects.

using namespace std;

class DTOFPoint_factory : public JFactory<DTOFPoint>
{
	public:

		double HALFPADDLE;
		double HALFPADDLE_ONESIDED;
		double E_THRESHOLD;
		double ATTEN_LENGTH;
		double ONESIDED_PADDLE_MIDPOINT_MAG; //+/- this number for North/South
		vector<double> propagation_speed;
		
		const DTOFGeometry* dTOFGeometry;
		
		class tof_spacetimehit_t
		{
			public:
				double x;
				double y;
				double t;
				double pos_cut; //x_cut for horizontal bars, y_cut for vertical bars
				double t_cut;
				const DTOFPaddleHit* TOFHit;
				bool dIsDoubleEndedBar;
				bool dPositionWellDefinedFlag;
				bool dIsSingleEndedNorthPaddle; //if !this and !dIsDoubleEndedBar, is single-ended south paddle
		};
		
		class tof_spacetimehitmatch_t
		{
			public:
				double delta_r;
				double delta_t;
				tof_spacetimehit_t* dTOFSpacetimeHit_Horizontal;
				tof_spacetimehit_t* dTOFSpacetimeHit_Vertical;
				bool dBothPositionsWellDefinedFlag;
		};

	private:
		jerror_t brun(JEventLoop *loop, int eventnumber);
		jerror_t evnt(JEventLoop *loop, int eventnumber);
		jerror_t fini(void);

		tof_spacetimehit_t* Get_TOFSpacetimeHitResource(void);

		tof_spacetimehit_t* Build_TOFSpacetimeHit_Horizontal(const DTOFPaddleHit* locTOFHit);
		tof_spacetimehit_t* Build_TOFSpacetimeHit_Vertical(const DTOFPaddleHit* locTOFHit);

		bool Match_Hits(tof_spacetimehit_t* locTOFSpacetimeHit_Horizontal, tof_spacetimehit_t* locTOFSpacetimeHit_Vertical, tof_spacetimehitmatch_t& locTOFSpacetimeHitMatch);

		void Create_MatchedTOFPoint(const tof_spacetimehit_t* locTOFSpacetimeHit_Horizontal, const tof_spacetimehit_t* locTOFSpacetimeHit_Vertical);
		void Create_UnMatchedTOFPoint(const tof_spacetimehit_t* locTOFSpacetimeHit);

		float dPositionMatchCut_DoubleEnded;
		float dTimeMatchCut_PositionWellDefined;
		float dTimeMatchCut_PositionNotWellDefined;

		size_t MAX_TOFSpacetimeHitPoolSize;
		deque<tof_spacetimehit_t*> dTOFSpacetimeHitPool_All;
		deque<tof_spacetimehit_t*> dTOFSpacetimeHitPool_Available;
};

#endif // _DTOFPoint_factory_