// $Id$
//
//    File: DDetectorMatches_factory.h
// Created: Tue Aug  9 14:29:24 EST 2011
// Creator: pmatt (on Linux ifarml6 2.6.18-128.el5 x86_64)
//

#ifndef _DDetectorMatches_
#define _DDetectorMatches_

#include <vector>
#include <utility>
#include <TRACKING/DTrackTimeBased.h>
#include <TOF/DTOFPoint.h>
#include <BCAL/DBCALShower.h>
#include <FCAL/DFCALShower.h>
#include <START_COUNTER/DSCHit.h>

using namespace std;

//only one object per event
class DDetectorMatches : public JObject
{
	public:
		JOBJECT_PUBLIC(DDetectorMatches);

		class DShowerMatchParams
		{
			public:
				double dx; //the distance the track traveled through the detector system up to the shower position
				double dFlightTime; //flight time from DTrackTimeBased::position() to the shower
				double dFlightTimeVariance;
				double dPathLength; //path length from DTrackTimeBased::position() to the shower
				double dDOCAToShower; //DOCA of track to shower
		};

		class DHitMatchParams
		{
			public:
				double dEdx; //dE/dx; dE: the energy lost by the track, dx: the distance the track traveled through the detector system
				double dFlightTime; //flight time from DTrackTimeBased::position() to the shower
				double dFlightTimeVariance;
				double dPathLength; //path length from DTrackTimeBased::position() to the hit
				double dDOCAToHit; //DOCA of track to hit
		};

	private:

		//for each track, stores the information about each match
		map<const DTrackTimeBased*, vector<pair<const DBCALShower*, const DShowerMatchParams*> > > dTrackBCALMatchParams;
		map<const DTrackTimeBased*, vector<pair<const DFCALShower*, const DShowerMatchParams*> > > dTrackFCALMatchParams;
		map<const DTrackTimeBased*, vector<pair<const DTOFPoint*, const DHitMatchParams*> > > dTrackTOFMatchParams;
		map<const DTrackTimeBased*, vector<pair<const DSCHit*, const DHitMatchParams*> > > dTrackSCMatchParams;

		//reverse-direction maps of the above (match params are the same objects)
		map<const DBCALShower*, vector<pair<const DTrackTimeBased*, const DShowerMatchParams*> > > dBCALTrackMatchParams;
		map<const DFCALShower*, vector<pair<const DTrackTimeBased*, const DShowerMatchParams*> > > dFCALTrackMatchParams;
		map<const DTOFPoint*, vector<pair<const DTrackTimeBased*, const DHitMatchParams*> > > dTOFTrackMatchParams;
		map<const DSCHit*, vector<pair<const DTrackTimeBased*, const DHitMatchParams*> > > dSCTrackMatchParams;

		//correlations between: (the flight time from a given detector system hit/shower to DTrackTimeBased::position()), and the momentum at DTrackTimeBased::position()
			//Note that it is assumed that these correlations will not change between the different objects of each type
		map<const DTrackTimeBased*, vector<pair<DetectorSystem_t, double> > dFlightTimePCorrelations; 

		//for BDT: help to determine if a shower is neutral or not
		map<const DBCALShower*, double> dBCALShowerDistanceToNearestTrack;
		map<const DFCALShower*, double> dFCALShowerDistanceToNearestTrack;
};

#endif // _DDetectorMatches_