///////////////////////////////////////////////////////////////////////////////
//  description of CMX RAW data block
///////////////////////////////////////////////////////////////////////////////

#include <BaBar/Experiment.hh>
#include <Edm/EventRecord.hh>
#include <Edm/ConstHandle.hh>

#include "StorableBanks/ConstGrandBankIterTDC.hh"
#include "StorableBanks/ConstBankIterTDC.hh"
#include "RawDataBanks/CMXD_StorableBank.hh"

#include <AbsEnv/AbsEnv.hh>

#include <Stntuple/mod/InitStntupleDataBlocks.hh>
#include <Stntuple/obj/TCmxDataBlock.hh>

//_____________________________________________________________________________
Int_t StntupleInitCmxDataBlock(TStnDataBlock* block, AbsEvent* event, int mode) 
{
  // initialize CMX data block with the `event' data, `mode' is not used so far

  int ierror, ev_number, rn_number;
					// check if block has already been 
					// initialized

  ev_number = AbsEnv::instance()->trigNumber();
  rn_number = AbsEnv::instance()->runNumber();

  if (block->Initialized(ev_number,rn_number)) return 0;

  TCmxDataBlock* data = (TCmxDataBlock*) block;
  data->Clear();
				// Loop over the hits in the D bank

  EventRecord::ConstIterator cmxd_iter(event, "CMXD_StorableBank");
  ConstHandle<CMXD_StorableBank> handle(cmxd_iter);

  const CMXD_StorableBank* cmxd = handle.operator->();

  for (ConstGrandBankIterTDC dhit(handle); dhit.is_valid(); ++dhit) {
    TCmxdHit* hit = data->NewDHit();
    cmxd->get_geometric_indices(dhit,
				hit->fSideNumber,
				hit->fWedgeNumber,
				hit->fLayerNumber, 
				hit->fWireNumber,
				ierror);

    hit->fLeadingEdge = cmxd->get_start(dhit);
    hit->fWidth       = cmxd->get_width(dhit);
  }
					// set event and run numbers
  data->f_RunNumber   = ev_number;
  data->f_EventNumber = rn_number;

  return 0;
}