/* ----------------------------------------------------------------------
    This is the

    ██╗     ██╗ ██████╗  ██████╗  ██████╗ ██╗  ██╗████████╗███████╗
    ██║     ██║██╔════╝ ██╔════╝ ██╔════╝ ██║  ██║╚══██╔══╝██╔════╝
    ██║     ██║██║  ███╗██║  ███╗██║  ███╗███████║   ██║   ███████╗
    ██║     ██║██║   ██║██║   ██║██║   ██║██╔══██║   ██║   ╚════██║
    ███████╗██║╚██████╔╝╚██████╔╝╚██████╔╝██║  ██║   ██║   ███████║
    ╚══════╝╚═╝ ╚═════╝  ╚═════╝  ╚═════╝ ╚═╝  ╚═╝   ╚═╝   ╚══════╝®

    DEM simulation engine, released by
    DCS Computing Gmbh, Linz, Austria
    http://www.dcs-computing.com, office@dcs-computing.com

    LIGGGHTS® is part of CFDEM®project:
    http://www.liggghts.com | http://www.cfdem.com

    Core developer and main author:
    Christoph Kloss, christoph.kloss@dcs-computing.com

    LIGGGHTS® is open-source, distributed under the terms of the GNU Public
    License, version 2 or later. It 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. You should have
    received a copy of the GNU General Public License along with LIGGGHTS®.
    If not, see http://www.gnu.org/licenses . See also top-level README
    and LICENSE files.

    LIGGGHTS® and CFDEM® are registered trade marks of DCS Computing GmbH,
    the producer of the LIGGGHTS® software and the CFDEM®coupling software
    See http://www.cfdem.com/terms-trademark-policy for details.

-------------------------------------------------------------------------
    Contributing author and copyright for this file:

    Richard Berger (JKU Linz)
    Christoph Kloss (DCS Computing GmbH, Linz, JKU Linz)

    Copyright 2012-     DCS Computing GmbH, Linz
    Copyright 2009-2012 JKU Linz
------------------------------------------------------------------------- */

#include "mpi.h"
#include "ctype.h"
#include "float.h"
#include "limits.h"
#include "math.h"
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#include "pair.h"
#include "atom.h"
#include "neighbor.h"
#include "neigh_list.h"
#include "domain.h"
#include "comm.h"
#include "force.h"
#include "kspace.h"
#include "update.h"
#include "accelerator_cuda.h"
#include "suffix.h"
#include "atom_masks.h"
#include "memory.h"
#include "error.h"

#include "granular_pair_style.h"
#include "granular_wall.h"

#include "contact_models.h"
#include "style_surface_model.h"
#include "style_normal_model.h"
#include "style_tangential_model.h"
#include "style_cohesion_model.h"
#include "style_rolling_model.h"
#include "pair_gran_base.h"
#include "fix_wall_gran_base.h"

namespace LIGGGHTS {

using namespace ContactModels;

// creates global object, which will register its pair styles during static initialization
struct RegisterGranularStyles {
public:
  RegisterGranularStyles() {
    PairStyles::Factory & pair_factory = PairStyles::Factory::instance();
    Walls::Factory & wall_factory = Walls::Factory::instance();

    // select granular variants based on contact models
    pair_factory.addVariantSelector("gran", ContactModels::Factory::select);
    wall_factory.addVariantSelector("gran", ContactModels::Factory::select);

    // register granular pair styles
    #define GRAN_MODEL(MODEL,TANGENTIAL,COHESION,ROLLING,SURFACE) \
    registerPair<MODEL, TANGENTIAL, COHESION, ROLLING, SURFACE>("gran", pair_factory); \
    registerWall<MODEL, TANGENTIAL, COHESION, ROLLING, SURFACE>("gran", wall_factory);
    #include "style_contact_model.h"
    #undef GRAN_MODEL
  }
private:
  template<typename T>
  static PairStyles::IGranularPairStyle * create_pair_style_instance(LAMMPS* lmp, PairGran* parent) {
    return new T(lmp, parent);
  }

  template<typename T>
  static Walls::IGranularWall * create_wall_style_instance(LAMMPS* lmp, FixWallGran* parent) {
    return new T(lmp, parent);
  }

  template<int MODEL, int TANGENTIAL, int COHESION, int ROLLING, int SURFACE>
  void registerPair(const std::string & name, LIGGGHTS::PairStyles::Factory & factory) {
     typedef GranStyle<MODEL,TANGENTIAL,COHESION,ROLLING,SURFACE> Style;
     typedef ContactModel<Style> CModel;
     typedef PairStyles::Granular<CModel> Type;
     int64_t hashcode = Style::HASHCODE;
     factory.addStyle(name, hashcode, &create_pair_style_instance<Type>);
  }

  template<int MODEL, int TANGENTIAL, int COHESION, int ROLLING, int SURFACE>
  void registerWall(const std::string & name, LIGGGHTS::Walls::Factory & factory) {
     typedef GranStyle<MODEL,TANGENTIAL,COHESION,ROLLING,SURFACE> Style;
     typedef ContactModel<Style> CModel;
     typedef Walls::Granular<CModel> Type;
     int64_t hashcode = Style::HASHCODE;
     factory.addStyle(name, hashcode, &create_wall_style_instance<Type>);
  }
} granStyles;
}
