NdsDirectory.cs

namespace NdsForge;

public sealed class NdsDirectory
{
    private IReadOnlyList<NdsDirectory> _directories = Array.Empty<NdsDirectory>();
    private IReadOnlyList<NdsFile> _files = Array.Empty<NdsFile>();

    internal NdsDirectory(ushort id, string name, string fullPath, NdsDirectory? parent)
    {
        Id = id;
        Name = name;
        FullPath = fullPath;
        Parent = parent;
    }

    public ushort Id { get; }

    public string Name { get; }

    public string FullPath { get; }

    public NdsDirectory? Parent { get; }

    public IReadOnlyList<NdsDirectory> Directories => _directories;

    public IReadOnlyList<NdsFile> Files => _files;

    public IEnumerable<NdsFile> EnumerateFiles(bool recursive = true)
    {
        foreach (NdsFile file in _files)
        {
            yield return file;
        }
 
        if (recursive)
        {
            foreach (NdsDirectory directory in _directories)
            {
                foreach (NdsFile file in directory.EnumerateFiles())
                {
                    yield return file;
                }
            }
        }
    }

    public IEnumerable<NdsDirectory> EnumerateDirectories(bool recursive = true)
    {
        foreach (NdsDirectory directory in _directories)
        {
            yield return directory;
            if (recursive)
            {
                foreach (NdsDirectory descendant in directory.EnumerateDirectories())
                {
                    yield return descendant;
                }
            }
        }
    }

    internal void SetChildren(IReadOnlyList<NdsDirectory> directories, IReadOnlyList<NdsFile> files)
    {
        _directories = directories;
        _files = files;
    }
}