// MuoIndexTrans.hpp
//
// Purpose: Translator/Adaptor for the MuoIndex container
//          Converts to/from MuoIndex and values
//			needed by geometry, electronics, and GEANT
//
// Created: June 1998 Michael R. Fortner
// Revised: November, 1998 M. Fortner - Add getGlobal methods for geometry
//			July 1999 - M. Fortner - add getSectionID for channel ID packing
//          June 2000 - M. Fortner - extend getFrontEnd to include module map
//

#ifndef MUO_MUOINDEXTRANS
#define MUO_MUOINDEXTRANS

#include "MuoIndex.hpp"
#include <vector>

namespace Muon {

class MuoIndexTrans {

private:
	struct Section {
		int planes;
		int etacells;
		int phicells;
		int tubes;
	};
// PDT sections; exceptions replace general cases
// PDT #LBO, L=layer, B=barrel, O=octant as defined in MuoSectionIndex
	static const Section _pdt4; // 0xx
	static const Section _pdt3; // 1xx, 2xx, 0x5, 0x6
	static const Section _pdt3BEF; // 10x, 14x, 205, 206, 245, 246
	static const Section _pdt3Bot; // 105, 145, 215, 235, and oct 6
// MDT sections; exceptions replace general cases
	static const Section _mdtA;
	static const Section _mdtB;
	static const Section _mdtC;
	static const Section _mdtBCBot; // octants 5 & 6, layers 1 & 2
// MSC sections; exceptions replace general cases
	static const Section _cmscA;
	static const Section _cmscABot; // w/ PDT 0x5, 0x6
	static const Section _cmscC;
	static const Section _cmscCBot; // w/ PDT 205, 206, 245, 246
        static const Section _cmscCBotH; // PDT 215, 216, 235, 236
	static const Section _cmscBBot; // w/ PDT 115, 116, 135, 136
	static const Section _cmscBEFBot; // w/ PDT 105, 106, 145, 146
	static const Section _cmscBSide; // w/ PDT 114, 124, 134, & oct 7
	static const Section _cmscBEFSide; // w/ PDT 104, 144, 107, 147
	static const Section _fmscA;
	static const Section _fmscBC;

// Section Orientation 
// WAMUS indices are layer, octant
	static const int _orientWAMUS[3][8];
// FAMUS indices are octant
	static const int _orientFAMUS[8];

// Foward Scintillator map
	static const unsigned char _fmscChannels[96];

// front end structure
	struct FEModule {
		int moduleID;
		int numFE;
		int FEID[16];
	};

// Scintillator SFE map
	static const FEModule _sfeModule[18];

public:

	MuoIndexTrans();
	~MuoIndexTrans();

// Accessors for all geometry
	int getNumPlanes(const MuoSectionIndex& ix) const;
	int getNumPlanes(const MuoIndex& ix) const;
	int getNumEtaCells(const MuoSectionIndex& ix) const;
	int getNumEtaCells(const MuoIndex& ix) const;
	int getNumPhiCells(const MuoSectionIndex& ix) const;
	int getNumPhiCells(const MuoIndex& ix) const;
	int getNumTubes(const MuoSectionIndex& ix) const;
	int getNumTubes(const MuoIndex& ix) const;

// Adaptors for local geometry
	int getOrientation(const MuoSectionIndex& ix) const;
  	int getLocalWire(const MuoIndex& ix) const;
	int getLocalPlane(const MuoIndex& ix) const;
	int getGlobalPlane(const MuoSectionIndex& section, int plane) const;
	int getGlobalWire(const MuoSectionIndex& section, int wire, int tube=0) const;
	MuoIndex getMuoIndex(const MuoSectionIndex& sect, int plane, int wire) const;

// Adaptors for readout electronics
	int getModuleID(const MuoIndex& ix) const;
	int getFrontEnd(const MuoIndex& ix) const;
	int getFrontEnd(const int modID, const int index) const;
	int getFECount(const int modID) const;
	int getChannelID(const MuoIndex& ix) const;
	MuoIndex getMuoIndex(const int modID, const int chanID) const;

private:
// Identify the SectionIndex
	MuoSectionIndex getMuoSectionIndex(const int modID, const int chanID) const;

// Map high-order bits from section to channel ID
	int getSectionID(const MuoIndex& ix) const;

// Calculate suboctant for SFE
	int getSuboctant(const MuoIndex& ix) const;

// Calculate pmt number
	int getPMT(const MuoIndex& ix) const;

// Convert from PDT local to global
	MuoCellIndex getPDTIndex(const MuoSectionIndex& ix, int lpln, int lwir) const;

// Map to internal data
	Section selectSection(const MuoSectionIndex& ix) const;
};

}

#endif