// Copyright (C) 2007-2024  CEA, EDF
//
// This library 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; either
// version 2.1 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
// Author : Anthony Geay (CEA/DEN)

#include <limits>

#if PY_VERSION_HEX < 0x03050000
static char*
Py_EncodeLocale(const wchar_t *text, size_t *error_pos)
{
   return _Py_wchar2char(text, error_pos);
}
#endif

static PyObject* convertMEDCalculatorDBField(MEDCoupling::MEDCalculatorDBField *f, int owner)
{
  PyObject *ret=0;
  if(dynamic_cast<MEDCoupling::MEDCalculatorDBFieldReal *>(f))
    ret=SWIG_NewPointerObj((void*)f,SWIGTYPE_p_MEDCoupling__MEDCalculatorDBFieldReal,owner);
  if(dynamic_cast<MEDCoupling::MEDCalculatorDBFieldCst *>(f))
    ret=SWIG_NewPointerObj((void*)f,SWIGTYPE_p_MEDCoupling__MEDCalculatorDBFieldCst,owner);
  return ret;
}

void convertPyObjToRS(PyObject *o, MEDCoupling::MEDCalculatorDBRangeSelection& rs)
{
  if(PyLong_Check(o))
    {
      int val=(int)PyLong_AS_LONG(o);
      rs=val;
      return ;
    }
  if(PyString_Check(o))
    {
      char *s=Py_EncodeLocale(PyUnicode_AS_UNICODE(o), NULL);
      rs=s;
      return ;
    }
  PyErr_SetString(PyExc_TypeError,"Range selection must be an integer or a string !");
}

void convertPyObjToRS2(PyObject *o, MEDCoupling::MEDCalculatorDBRangeSelection& rs, const char *msg)
{
  if(PyLong_Check(o))
    {
      int val=(int)PyLong_AS_LONG(o);
      rs=val;
      return ;
    }
  if(!PySlice_Check(o))
    {
      std::ostringstream oss;
      oss << "Expecting a slice or an integer for " << msg << " !";
      throw INTERP_KERNEL::Exception(oss.str().c_str());
    }
  Py_ssize_t strt,stp,step;
  PySlice_GetIndices(o,std::numeric_limits<int>::max(),&strt,&stp,&step);
  rs.setPyStart(strt);
  rs.setPyEnd(stp);
}