//#---------------------------------------------------------------------------
//# PKSMS2reader.h: Class to read Parkes Multibeam data from a v2 MS.
//#---------------------------------------------------------------------------
//# Copyright (C) 2000-2008
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//#        Internet email: aips2-request@nrao.edu.
//#        Postal address: AIPS++ Project Office
//#                        National Radio Astronomy Observatory
//#                        520 Edgemont Road
//#                        Charlottesville, VA 22903-2475 USA
//#
//# $Id: PKSMS2reader.h,v 19.17 2008-11-17 06:38:53 cal103 Exp $
//#---------------------------------------------------------------------------
//# Original: 2000/08/03, Mark Calabretta, ATNF
//#---------------------------------------------------------------------------

#ifndef ATNF_PKSMS2READER_H
#define ATNF_PKSMS2READER_H

#include <atnf/PKSIO/PKSreader.h>
#include <atnf/PKSIO/PKSrecord.h>

#include <casa/aips.h>
#include <casa/Arrays/Matrix.h>
#include <casa/Arrays/Slicer.h>
#include <casa/Arrays/Vector.h>
#include <casa/BasicSL/Complex.h>
#include <casa/BasicSL/String.h>
#include <ms/MeasurementSets/MeasurementSet.h>
#include <tables/Tables/ArrayColumn.h>
#include <tables/Tables/ScalarColumn.h>

#include <casa/namespace.h>

// <summary>
// Class to read Parkes Multibeam data from a v2 MS.
// </summary>

class PKSMS2reader : public PKSreader
{
  public:
    // Default constructor.
    PKSMS2reader();

    // Destructor.
    virtual ~PKSMS2reader();

    //  Open the MS for reading.
    virtual Int open(
        const String msName,
        Vector<Bool> &beams,
        Vector<Bool> &IFs,
        Vector<uInt> &nChan,
        Vector<uInt> &nPol,
        Vector<Bool> &haveXPol,
        Bool   &haveBase,
        Bool   &haveSpectra);

    // Get parameters describing the data.
    virtual Int getHeader(
        String &observer,
        String &project,
        String &antName,
        Vector<Double> &antPosition,
        String &obsMode,
        String &bunit,
        Float  &equinox,
        String &dopplerFrame,
        Double &mjd,
        Double &refFreq,
        Double &bandwidth);

    // Get frequency parameters for each IF.
    virtual Int getFreqInfo(
        Vector<Double> &startFreq,
        Vector<Double> &endFreq);

    // Set data selection criteria.  Channel numbering is 1-relative, zero or
    // negative channel numbers are taken to be offsets from the last channel.
    virtual uInt select(
        const Vector<Bool> beamSel,
        const Vector<Bool> IFsel,
        const Vector<Int>  startChan,
        const Vector<Int>  endChan,
        const Vector<Int>  refChan,
        const Bool getSpectra = True,
        const Bool getXPol    = False,
        const Int  coordSys   = 0);

    // Find the range of the data selected in time and position.
    virtual Int findRange(
        Int    &nRow,
        Int    &nSel,
        Vector<Double> &timeSpan,
        Matrix<Double> &positions);

    // Read the next data record.
    virtual Int read(PKSrecord &pksrec);

    // Close the MS.
    virtual void close(void);

  private:
    Bool   cHaveBaseLin, cHaveCalFctr, cHaveSrcVel, cHaveTsys, cHaveXCalFctr,
           cMSopen;
    Int    cCycleNo, cIdx, cNRow, cScanNo;
    Double cTime;
    Vector<Int>    cEndChan, cRefChan, cStartChan;
    Vector<Bool>   cBeams, cIFs;
    Vector<Slicer> cDataSel;
    MeasurementSet cPKSMS;

    ROScalarColumn<Int>     cScanNoCol;
    ROScalarColumn<Double>  cTimeCol;
    ROScalarColumn<Double>  cIntervalCol;
    ROScalarColumn<Int>     cFieldIdCol;
    ROScalarColumn<String>  cFieldNameCol;
    ROScalarColumn<Int>     cSrcIdCol;
    ROScalarColumn<String>  cSrcNameCol;
    ROArrayColumn<Double>   cSrcDirCol;
    ROArrayColumn<Double>   cSrcPMCol;
    ROArrayColumn<Double>   cSrcVelCol;
    ROScalarColumn<Int>     cStateIdCol;
    ROScalarColumn<String>  cObsModeCol;
    ROArrayColumn<Double>   cSrcRestFrqCol;
    ROScalarColumn<Int>     cDataDescIdCol;
    ROArrayColumn<Double>   cChanFreqCol;
    ROScalarColumn<Double>  cWeatherTimeCol;
    ROScalarColumn<Float>   cTemperatureCol;
    ROScalarColumn<Float>   cPressureCol;
    ROScalarColumn<Float>   cHumidityCol;
    ROScalarColumn<Int>     cBeamNoCol;
    ROArrayColumn<Double>   cPointingCol;
    ROArrayColumn<Float>    cTsysCol;
    ROArrayColumn<Float>    cSigmaCol;
    ROArrayColumn<Float>    cCalFctrCol;
    ROArrayColumn<Float>    cBaseLinCol;
    ROArrayColumn<Float>    cBaseSubCol;
    ROArrayColumn<Float>    cFloatDataCol;
    ROArrayColumn<Bool>     cFlagCol;
    ROScalarColumn<Complex> cXCalFctrCol;
    ROArrayColumn<Complex>  cDataCol;
    ROScalarColumn<Int>     cNumReceptorCol;
};

#endif
