// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
// Mobius Forensic Toolkit
// Copyright (C) 2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021 Eduardo Aguiar
//
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option) any later
// version.
//
// This program 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 General
// Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \file parser.cc C++ API <i>mobius.decoder.parser</i> class wrapper
//! \author Eduardo Aguiar
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#include <pymobius.h>
#include "parser.h"
#include <mobius/exception.inc>
#include <stdexcept>
#include "io/reader.h"
#include "api_dataholder.h"
#include "pod/map.h"

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Check if object type is <i>parser</i>
//! \param pyobj Python object
//! \return true/false
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
bool
PyMobius_Decoder_Sgml_Parser_Check (PyObject *pyobj)
{
  return PyObject_IsInstance (pyobj, (PyObject *) &decoder_sgml_parser_t);
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Create <i>parser</i> Python object from C++ object
//! \param obj C++ object
//! \return new parser object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
PyObject *
PyMobius_Decoder_Sgml_Parser_from_cpp (const mobius::decoder::sgml::parser& obj)
{
  PyObject *ret = _PyObject_New (&decoder_sgml_parser_t);

  if (ret)
    ((decoder_sgml_parser_o *) ret)->obj = new mobius::decoder::sgml::parser (obj);

  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Create <i>parser</i> C++ object from Python object
//! \param pyobj Python object
//! \return parser object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
mobius::decoder::sgml::parser
PyMobius_Decoder_Sgml_Parser_as_cpp (PyObject *pyobj)
{
  if (!PyObject_IsInstance (pyobj, (PyObject *) &decoder_sgml_parser_t))
    throw std::invalid_argument (mobius::MOBIUS_EXCEPTION_MSG ("object type must be mobius.decoder.sgml.parser"));

  return * (reinterpret_cast <decoder_sgml_parser_o *>(pyobj)->obj);
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>get</i> method implementation
//! \param self Object
//! \param args Argument list
//! \return Pair <type, text>
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_get (decoder_sgml_parser_o *self, PyObject *)
{
  // Execute C++ function
  PyObject *ret = nullptr;

  try
    {
      auto e = self->obj->get ();

      api_dataholder_o *pyobj = api_dataholder_new ();
  
      if (pyobj)
        {
          api_dataholder_setattr (pyobj, "text", e.get_text ());
          api_dataholder_setattr (pyobj, "type", static_cast <int> (e.get_type ()));
          api_dataholder_setattr (pyobj, "attributes", PyMobius_Pod_Map_from_cpp (e.get_attributes ()));
          ret = reinterpret_cast <PyObject *> (pyobj);
        }
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // Return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Methods structure
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyMethodDef tp_methods[] =
{
  {
    (char *) "get",
    (PyCFunction) tp_f_get,
    METH_VARARGS,
    "Get next element"
  },
  {NULL, NULL, 0, NULL} // sentinel
};

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>parser</i> Constructor
//! \param type Type object
//! \param args Argument list
//! \param kwds Keywords dict
//! \return new <i>parser</i> object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_new (PyTypeObject *type, PyObject *args, PyObject *)
{
  // Parse input args
  mobius::io::reader arg_reader;

  try
    {
      arg_reader = PyMobius_IO_Reader_as_cpp (mobius::py::get_arg (args, 0));
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_TypeError, e.what ());
      return nullptr;
    }


  // Create Python object
  decoder_sgml_parser_o *ret = reinterpret_cast <decoder_sgml_parser_o *> (type->tp_alloc (type, 0));

  if (ret)
    {
      try
        {
          ret->obj = new mobius::decoder::sgml::parser (arg_reader);
        }
      catch (const std::exception& e)
        {
          Py_DECREF (ret);
          PyErr_SetString (PyExc_Exception, e.what ());
          ret = nullptr;
        }
    }

  return reinterpret_cast <PyObject *> (ret);
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>parser</i> deallocator
//! \param self Object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static void
tp_dealloc (decoder_sgml_parser_o *self)
{
  delete self->obj;
  self->ob_type->tp_free ((PyObject*) self);
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Type structure
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
PyTypeObject decoder_sgml_parser_t =
{
  PyVarObject_HEAD_INIT (NULL, 0)
  "mobius.decoder.sgml.parser",             		// tp_name
  sizeof (decoder_sgml_parser_o),           		// tp_basicsize
  0,                                       		// tp_itemsize
  (destructor) tp_dealloc,                 		// tp_dealloc
  0,                                       		// tp_print
  0,                                       		// tp_getattr
  0,                                       		// tp_setattr
  0,                                       		// tp_compare
  0,                                       		// tp_repr
  0,                                       		// tp_as_number
  0,                                       		// tp_as_sequence
  0,                                       		// tp_as_mapping
  0,                                       		// tp_hash
  0,                                       		// tp_call
  0,                                       		// tp_str
  0,                                       		// tp_getattro
  0,                                       		// tp_setattro
  0,                                       		// tp_as_buffer
  Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,		// tp_flags
  "SGML parser class",                      		// tp_doc
  0,                                       		// tp_traverse
  0,                                       		// tp_clear
  0,                                       		// tp_richcompare
  0,                                       		// tp_weaklistoffset
  0,                                       		// tp_iter
  0,                                       		// tp_iternext
  tp_methods,                              		// tp_methods
  0,                                       		// tp_members
  0,                                       		// tp_getset
  0,                                       		// tp_base
  0,                                       		// tp_dict
  0,                                       		// tp_descr_get
  0,                                       		// tp_descr_set
  0,                                       		// tp_dictoffset
  0,                                       		// tp_init
  0,                                       		// tp_alloc
  tp_new,                                  		// tp_new
  0,                                       		// tp_free
  0,                                       		// tp_is_gc
  0,                                       		// tp_bases
  0,                                       		// tp_mro
  0,                                       		// tp_cache
  0,                                       		// tp_subclasses
  0,                                       		// tp_weaklist
  0,                                       		// tp_del
  0,                                       		// tp_version_tag
};
