// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename       : TeleDisk.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : Disk image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
//     Manages Sydex TeleDisk disk images.
//
// --[ License ] --------------------------------------------------------------
//
//     This library is free software; you can redistribute it and/or modify
//     it under the terms of the GNU Lesser General Public License as
//     published by the Free Software Foundation; either version 2.1 of the
//     License, or (at your option) any later version.
//
//     This library 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
//     Lesser General Public License for more details.
//
//     You should have received a copy of the GNU Lesser General Public
//     License along with this library; if not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2026 Natalia Portillo
// ****************************************************************************/

using System.Collections.Generic;
using System.IO;
using Aaru.CommonTypes.Interfaces;
using Aaru.CommonTypes.Structs;

namespace Aaru.Images;

// Created following notes from Dave Dunfield
// http://www.classiccmp.org/dunfield/img54306/td0notes.txt
/// <inheritdoc cref="Aaru.CommonTypes.Interfaces.IMediaImage" />
/// <summary>Implements reading of Sydex TeleDisk disk images</summary>
public sealed partial class TeleDisk : IMediaImage, IVerifiableImage, IVerifiableSectorsImage
{
    const    string      MODULE_NAME = "TeleDisk plugin";
    readonly List<ulong> _sectorsWhereCrcHasFailed;
    bool                 _aDiskCrcHasFailed;
    byte[]               _commentBlock;
    CommentBlockHeader   _commentHeader;
    Header               _header;
    ImageInfo            _imageInfo;
    Stream               _inStream;
    byte[]               _leadOut;

    // Cylinder by head, sector data matrix
    byte[][][][] _sectorsData;

    // LBA, data
    uint _totalDiskSize;

    public TeleDisk()
    {
        _imageInfo = new ImageInfo
        {
            ReadableSectorTags    = [],
            ReadableMediaTags     = [],
            HasPartitions         = false,
            HasSessions           = false,
            Application           = "Sydex TeleDisk",
            Comments              = null,
            Creator               = null,
            MediaManufacturer     = null,
            MediaModel            = null,
            MediaSerialNumber     = null,
            MediaBarcode          = null,
            MediaPartNumber       = null,
            MediaSequence         = 0,
            LastMediaSequence     = 0,
            DriveManufacturer     = null,
            DriveModel            = null,
            DriveSerialNumber     = null,
            DriveFirmwareRevision = null
        };

        _aDiskCrcHasFailed        = false;
        _sectorsWhereCrcHasFailed = [];
    }
}