// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
// Mobius Forensic Toolkit
// Copyright (C) 2008,2009,2010,2011,2012,2013,2014,2015,2016,2017 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/>.
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#include <mobius/core/application.h>
#include <mobius/disk/disk.h>
#include <mobius/filesystem/filesystem.h>
#include <mobius/imagefile/imagefile.h>
#include <iostream>
#include <unistd.h>

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief show usage text
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
void
usage ()
{
  std::cerr << std::endl;
  std::cerr << "use: filesystem_scan [OPTIONS] <URL>" << std::endl;
  std::cerr << "e.g: filesystem_scan -t raw file://disk.raw" << std::endl;
  std::cerr << "     filesystem_scan file://disk.ewf" << std::endl;
  std::cerr << std::endl;
  std::cerr << "options are:" << std::endl;
  std::cerr << "  -t imagefile type\t\t" << std::endl;
  std::cerr << std::endl;
  std::cerr << "     type is:" << std::endl;
  std::cerr << "       autodetect\ttry to autodetect imagefile type (default)" << std::endl;

  for (auto i : mobius::imagefile::imagefile::typelist)
    std::cerr << "       " << i.type << "\t\t" << i.description << std::endl;

  std::cerr << std::endl;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief main function
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
int
main (int argc, char **argv)
{
  mobius::core::application app;
  std::cerr << app.get_name () << " v" << app.get_version () << std::endl;
  std::cerr << app.get_copyright () << std::endl;
  std::cerr << "Filesystem Scan v1.0" << std::endl;
  std::cerr << "by Eduardo Aguiar" << std::endl;

  // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  // parse command line
  // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  int opt;
  std::string type = "autodetect";

  while ((opt = getopt (argc, argv, "ht:")) != EOF)
    {
      switch (opt)
        {
          case 'h':                
            usage ();
            exit (EXIT_SUCCESS);
            break;

          case 't':
            type = optarg;
            break;

          default:
            usage ();
            exit (EXIT_FAILURE);
        }
    }

  if (optind >= argc)
    {
      std::cerr << std::endl;
      std::cerr << "Error: you must enter a valid URL to an imagefile" << std::endl;
      usage ();
      exit (EXIT_FAILURE);
    }

  // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  // check if disk is available
  // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  auto disk = mobius::disk::new_disk_from_url (argv[optind], type);

  if (!disk.is_available ())
    {
      std::cerr << std::endl;
      std::cerr << "Error: imagefile is not available" << std::endl;
      usage ();
      exit (EXIT_FAILURE);
    }

  // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  // scan filesystems
  // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  for (auto fs : mobius::filesystem::get_filesystems (disk))
    {
      std::cout << std::endl;

      for (const auto attr : fs.get_metadata ())
        std::cout << "   " << attr.description << ": " << attr.value << std::endl;
    }
}
