/*
 * @BEGIN LICENSE
 *
 * Psi4: an open-source quantum chemistry software package
 *
 * Copyright (c) 2007-2019 The Psi4 Developers.
 *
 * The copyrights for code used from other parties are included in
 * the corresponding files.
 *
 * This file is part of Psi4.
 *
 * Psi4 is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, version 3.
 *
 * Psi4 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with Psi4; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * @END LICENSE
 */

/*! \file
    \ingroup CCDENSITY
    \brief Enter brief description of file here
*/
#include <cstdio>
#include "psi4/libdpd/dpd.h"
#include "MOInfo.h"
#include "Params.h"
#include "Frozen.h"
#define EXTERN
#include "globals.h"

namespace psi {
namespace ccdensity {

void ex_tdensity_rohf(struct TD_Params S, struct TD_Params U);
void ex_tdensity_uhf(struct TD_Params S, struct TD_Params U);
void ex_sort_td_rohf(char hand, int Tirrep);
void ex_sort_td_uhf(char hand, int Tirrep);

void ex_tdensity(char hand, struct TD_Params S, struct TD_Params U) {
    // FYI: "Sort" needs to know L or R in order to
    //       put density in correct place (ltd or rtd)
    int Tirrep = S.irrep ^ U.irrep;
    if (params.ref == 0 || params.ref == 1) {
        ex_tdensity_rohf(S, U);
        outfile->Printf("\t\t***...density has been built...\n");

        ex_sort_td_rohf(hand, Tirrep);
        outfile->Printf("\t\t***...density has been sorted...\n");

    } else if (params.ref == 2) {
        ex_tdensity_uhf(S, U);
        outfile->Printf("\t\t***...density has been built...\n");

        ex_sort_td_uhf(hand, Tirrep);
        outfile->Printf("\t\t***...density has been sorted...\n");
    }

    return;
}

}  // namespace ccdensity
}  // namespace psi
