Aaru/Aaru.Gui/ViewModels/Windows/ViewSectorViewModel.cs

// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename       : ViewSectorViewModel.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : GUI view models.
//
// --[ Description ] ----------------------------------------------------------
//
//     View model and code for the sector viewing window.
//
// --[ License ] --------------------------------------------------------------
//
//     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 3 of the
//     License, 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/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2022 Natalia Portillo
// ****************************************************************************/

namespace Aaru.Gui.ViewModels.Windows;

using Aaru.CommonTypes.Enums;
using Aaru.CommonTypes.Interfaces;
using Aaru.Helpers;
using JetBrains.Annotations;
using ReactiveUI;

public sealed class ViewSectorViewModel : ViewModelBase
{
    const    int         HEX_COLUMNS = 32;
    readonly IMediaImage _inputFormat;
    bool                 _longSectorChecked;
    bool                 _longSectorVisible;
    string               _printHexText;
    double               _sectorNumber;
    string               _title;
    string               _totalSectorsText;

    public ViewSectorViewModel([NotNull] IMediaImage inputFormat)
    {
        _inputFormat = inputFormat;

        ErrorNumber errno = inputFormat.ReadSectorLong(0, out _);

        if(errno == ErrorNumber.NoError)
            LongSectorChecked = true;
        else
            LongSectorVisible = false;

        TotalSectorsText = $"of {inputFormat.Info.Sectors}";
        SectorNumber     = 0;
    }

    public string Title
    {
        get => _title;
        set => this.RaiseAndSetIfChanged(ref _title, value);
    }

    public double SectorNumber
    {
        get => _sectorNumber;
        set
        {
            this.RaiseAndSetIfChanged(ref _sectorNumber, value);

            byte[]      sector;
            ErrorNumber errno;

            errno = LongSectorChecked ? _inputFormat.ReadSectorLong((ulong)SectorNumber, out sector)
                        : _inputFormat.ReadSector((ulong)SectorNumber, out sector);

            if(errno == ErrorNumber.NoError)
                PrintHexText = PrintHex.ByteArrayToHexArrayString(sector, HEX_COLUMNS);
        }
    }

    public string TotalSectorsText { get; }

    public bool LongSectorChecked
    {
        get => _longSectorChecked;
        set => this.RaiseAndSetIfChanged(ref _longSectorChecked, value);
    }

    public bool LongSectorVisible { get; }

    public string PrintHexText
    {
        get => _printHexText;
        set => this.RaiseAndSetIfChanged(ref _printHexText, value);
    }
}