// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
// Mobius Forensic Toolkit
// Copyright (C) 2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019 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 sector_reader.cc C++ API <i>mobius.io.sector_reader</i> class wrapper
//! \author Eduardo Aguiar
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#include "sector_reader.h"
#include "module.h"
#include "api.h"

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Create <i>sector_reader</i> Python object from C++ object
//! \param obj C++ object
//! \return new sector_reader object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
PyObject *
PyMobius_IO_Sector_Reader_from_cpp (mobius::io::sector_reader obj)
{
  PyObject *ret = nullptr;

  if (obj)
    {
      ret = _PyObject_New (&io_sector_reader_t);

      if (ret)
        ((io_sector_reader_o *) ret)->obj = new mobius::io::sector_reader (obj);
    }
  else
    {
      Py_INCREF (Py_None);
      ret = Py_None;
    }

  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>sectors</i> Attribute getter
//! \param self Object
//! \return <i>sectors</i> attribute
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_getter_sectors (io_sector_reader_o *self)
{
  PyObject *ret = nullptr;

  try
    {
      ret = PyLong_FromUnsignedLongLong (self->obj->get_sectors ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>sector_size</i> Attribute getter
//! \param self Object
//! \return <i>sector_size</i> attribute
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_getter_sector_size (io_sector_reader_o *self)
{
  PyObject *ret = nullptr;

  try
    {
      ret = PyLong_FromUnsignedLong (self->obj->get_sector_size ());
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Getters and setters structure
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyGetSetDef tp_getset[] =
{
  {
    (char *) "sectors",
    (getter) tp_getter_sectors,
    (setter) 0,
    (char *) "Number of sectors",
    NULL
  },
  {
    (char *) "sector_size",
    (getter) tp_getter_sector_size,
    (setter) 0,
    (char *) "Sector size in bytes",
    NULL
  },
  {NULL, NULL, NULL, NULL, NULL} // sentinel
};

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>is_available</i> method implementation
//! \param self Object
//! \param args Argument list
//! \return true/false
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_is_available (io_sector_reader_o *self, PyObject *args)
{
  // parse input args
  std::uint64_t arg_sector;

  if (!PyArg_ParseTuple (args, "K", &arg_sector))
    return nullptr;

  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = PyBool_FromLong (self->obj->is_available (arg_sector));
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>read</i> method implementation
//! \param self Object
//! \param args Argument list
//! \return Data from sector
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_f_read (io_sector_reader_o *self, PyObject *args)
{
  // parse input args
  std::uint64_t arg_sector;

  if (!PyArg_ParseTuple (args, "K", &arg_sector))
    return nullptr;

  // execute C++ function
  PyObject *ret = nullptr;

  try
    {
      ret = PyBytes_from_bytearray (self->obj->read (arg_sector));
    }
  catch (const std::exception& e)
    {
      PyErr_SetString (PyExc_Exception, e.what ());
    }

  // return value
  return ret;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Methods structure
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyMethodDef tp_methods[] =
{
  {
    (char *) "is_available",
    (PyCFunction) tp_f_is_available,
    METH_VARARGS,
    "Check if sector is available"
  },
  {
    (char *) "read",
    (PyCFunction) tp_f_read,
    METH_VARARGS,
    "Read sector"
  },
  {NULL, NULL, 0, NULL} // sentinel
};

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief <i>sector_reader</i> Constructor
//! \param type Type object
//! \param args Argument list
//! \param kwds Keywords dict
//! \return new <i>sector_reader</i> object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
static PyObject *
tp_new (PyTypeObject *type, PyObject *, PyObject *)
{
  io_sector_reader_o *self = (io_sector_reader_o *) type->tp_alloc (type, 0);

  if (self)
    self->obj = new mobius::io::sector_reader ();

  return (PyObject *) self;
}

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

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Type structure
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
PyTypeObject io_sector_reader_t =
{
  PyVarObject_HEAD_INIT (NULL, 0)
  "mobius.io.sector_reader",               		// tp_name
  sizeof (io_sector_reader_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
  "sector_reader 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
  tp_getset,                               		// 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
};
