#include "ICTHChannelMap.hxx"

#include "COMETGeomId.hxx"
#include "COMETGeomIdDef.hxx"
#include "ICOMETLog.hxx"
#include "ICTHGeomId.hxx"

#include <iostream>

COMET::ICTHChannelMap* COMET::ICTHChannelMap::fCTHChannelMap = NULL;

COMET::ICTHChannelMap::ICTHChannelMap() {
  if(fCTHChannelMap){
    COMETError("CTH channel map instance already exists," <<
               " cannot change after intialisation");
    return;
  }
}

COMET::ICTHChannelMap::~ICTHChannelMap() {
  delete fCTHChannelMap;
}

//----------------------------------------------------------------------
COMET::ICTHChannelMap& COMET::ICTHChannelMap::Get()
{
  if(!fCTHChannelMap) fCTHChannelMap = new ICTHChannelMap();
  return *fCTHChannelMap;
}


//----------------------------------------------------------------------
bool COMET::ICTHChannelMap::GetGeometryId(COMET::IGeometryId& geomId,
                                       COMET::ICTHChannelId channelId) 
{
  //empty placeholder to be filled
  //geomId = channelId;
  geomId = COMET::GeomId::CTH::Counter(channelId.GetModule(), channelId.GetSegmentId(), channelId.GetScint(), channelId.GetLightGuide());
  return true;
}

//----------------------------------------------------------------------
bool COMET::ICTHChannelMap::GetChannelId(COMET::ICTHChannelId& channelId,
                                      COMET::IGeometryId geomId)
{
  //empty placeholder to be filled
  //channelId = geomId;
  return true;
}

//----------------------------------------------------------------------
inline const COMET::IGeometryId COMET::ICTHChannelMap::BadGeomId() const
{
  //Construct by hand as we are deliberately creating an invalid id
  //0x80000000 guard bit (Invalid => high)
  //0x7E000000 sub-det specifier range (FGD => normally 0x3)
  //so 0x86000000 == invalid-geomID in FGD range
  
  //0x01FFFFFF sub detector use range (25 bits)
  //Set all these high: 0x1FFFFFF
  return IGeometryId(0x87FFFFFF); // == 0x86000000 | 0x01FFFFFF; 
}

//----------------------------------------------------------------------
inline const COMET::ICTHChannelId COMET::ICTHChannelMap::BadChanId() const
{
  //Construct by hand as we are deliberately creating an invalid id
  //0x80000000 guard bit (Invalid => low)
  //0x7E000000 sub-det specifier range (FGD => normally 0x3)
  //so 0x06000000 == invalid-chanID in FGD range

  //0x01FFFFFF sub detector use range (25 bits)
  //Set all these high: 0x1FFFFFF
  return ICTHChannelId(0x07FFFFFF); // == 0x06000000 | 0x01000000
}