// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
// Mobius Forensic Toolkit
// Copyright (C)
// 2008,2009,2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020,2021,2022,2023,2024,2025
// 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 <iostream>
#include <mobius/core/application.hpp>
#include <mobius/core/log.hpp>
#include <mobius/core/resource.hpp>
#include <mobius/core/vfs/vfs.hpp>
#include <unistd.h>

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Show usage text
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
void
usage ()
{
    std::cerr << std::endl;
    std::cerr << "Use: vfs_info [OPTIONS] <URL>" << std::endl;
    std::cerr << "e.g: vfs_info -t raw file://disk.raw" << std::endl;
    std::cerr << "     vfs_info 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 << "     Image file type can be:" << std::endl;
    std::cerr << "       autodetect\tTry to autodetect imagefile type (default)"
              << std::endl;

    for (const auto &r : mobius::core::get_resources ("vfs.imagefile"))
        std::cerr << "       " << r.get_id () << "\t\t" << r.get_description ()
                  << std::endl;

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

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Show VFS block
//! \param block Block object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
void
show_block (const mobius::core::vfs::block &block)
{
    std::cout << std::endl;
    std::cout << "  UID: " << block.get_uid () << std::endl;
    std::cout << "  Is handled: " << block.is_handled () << std::endl;
    std::cout << "  Is complete: " << block.is_complete () << std::endl;
    std::cout << "  Is available: " << block.is_available () << std::endl;
    std::cout << "  Type: " << block.get_type () << std::endl;

    std::cout << "  Parents: ";
    for (const auto &p : block.get_parents ())
        std::cout << p.get_uid () << ' ';
    std::cout << std::endl;

    std::cout << "  Children: ";
    for (const auto &c : block.get_children ())
        std::cout << c.get_uid () << ' ';
    std::cout << std::endl;

    for (const auto &c : block.get_children ())
        std::cout << "    " << c.get_uid () << ' ' << c.get_type () << ' '
                  << c.get_attributes () << std::endl;

    std::cout << "  Attributes: " << std::endl;

    for (const auto &[name, value] : block.get_attributes ())
    {
        std::cout << "    " << name << '\t' << value.to_string () << std::endl;
    }

    std::cout << "  State: " << block.get_state () << std::endl;

    std::cout << std::endl;
    std::cout << "  Data (first 512 bytes):" << std::endl;

    auto reader = block.new_reader ();
    std::cout << reader.read (512).dump (4) << std::endl;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief Show VFS
//! \param vfs VFS object
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
void
show_vfs (const mobius::core::vfs::vfs &vfs)
{
    std::cout << std::endl;
    std::cout << "Is available: " << vfs.is_available () << std::endl;

    std::cout << std::endl;
    std::cout << "Disks:" << std::endl;

    for (const auto &d : vfs.get_disks ())
    {
        std::cout << d.get_type () << std::endl;

        for (const auto &p : d.get_attributes ())
            std::cout << "    " << p.first << ": " << p.second << std::endl;

        std::cout << "    " << d.get_path () << std::endl;
        std::cout << "    " << d.get_state () << std::endl;

        auto reader = d.new_reader ();
        std::cout << std::endl;
        std::cout << reader.read (512).dump (4) << std::endl;
    }

    std::cout << std::endl;
    std::cout << "Blocks:" << std::endl;

    for (const auto &b : vfs.get_blocks ())
    {
        show_block (b);
    }

    std::cout << std::endl;
    std::cout << "State:" << std::endl;
    std::cout << vfs.get_state () << std::endl;
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
//! \brief main function
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
int
main (int argc, char **argv)
{
    mobius::core::application app;
    app.start ();

    std::cerr << app.get_name () << " v" << app.get_version () << std::endl;
    std::cerr << app.get_copyright () << std::endl;
    std::cerr << "VFS info 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);
    }

    // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
    // Create VFS
    // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
    mobius::core::vfs::vfs vfs;
    vfs.add_disk (mobius::core::vfs::new_disk_by_url (argv[optind], type));

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

    // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
    // Show VFS info
    // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
    show_vfs (vfs);

    app.stop ();
}
