Yazwh0_BitMagic_Legacy/Bitmagic.DiscUtils.Fat/FileSystemFactory.cs
//
// Copyright (c) 2008-2011, Kenneth Bell
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// DEALINGS IN THE SOFTWARE.
//

using System.IO;
using DiscUtils.Vfs;
using DiscUtils.Streams;
using System.Collections.Generic;
using System.Linq;
using DiscUtils;
using FileSystemInfo = DiscUtils.FileSystemInfo;

namespace DiscUtils.Fat;

[VfsFileSystemFactory]
internal class FileSystemFactory : VfsFileSystemFactory
{
    public override IEnumerable<FileSystemInfo> Detect(Stream stream, VolumeInfo volume)
    {
        if (Fat32FileSystem.Detect(stream))
        {
            return SingleValueEnumerable.Get(new VfsFileSystemInfo("FAT", "Microsoft FAT", Open));
        }

        return Enumerable.Empty<FileSystemInfo>();
    }

    private DiscFileSystem Open(Stream stream, VolumeInfo volumeInfo, FileSystemParameters parameters)
    {
        return new Fat32FileSystem(stream, Ownership.None, parameters);
    }
}