// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename       : UDIF.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : Disk image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
//     Manages Apple Universal Disk Image Format.
//
// --[ 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.Checksums;
using Aaru.CommonTypes.Interfaces;
using Aaru.CommonTypes.Structs;

#pragma warning disable 612

namespace Aaru.Images;

/// <inheritdoc />
/// <summary>Implements reading and writing Apple's Universal Disk Image Format disk images</summary>
public sealed partial class Udif : IWritableImage
{
    const string                  MODULE_NAME = "UDIF plugin";
    uint                          _buffersize;
    Dictionary<ulong, byte[]>     _chunkCache;
    Dictionary<ulong, BlockChunk> _chunks;
    HashSet<ulong>                _chunkStartSectors;
    BlockChunk                    _currentChunk;
    uint                          _currentChunkCacheSize;
    ulong                         _currentSector;
    Crc32Context                  _dataForkChecksum;
    Footer                        _footer;
    ImageInfo                     _imageInfo;
    Stream                        _imageStream;
    Crc32Context                  _masterChecksum;
    Dictionary<ulong, byte[]>     _sectorCache;
    FileStream                    _writingStream;

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