CloudMusic/FNZCM2/FNZCM2.ProofOfConcept/PocFolderScanByFileSystemEnumerable.cs

using System.IO.Enumeration;
using FSE = (bool isDir, string path, long size, System.DateTimeOffset lastWrited);

namespace FNZCM2.ProofOfConcept;

internal static class PocFolderScanByFileSystemEnumerable
{
    public static void RunPoc()
    {
        var fse = new FileSystemEnumerable<FSE>(
            "library",
            (ref FileSystemEntry p) => new(
                p.IsDirectory,
                p.ToFullPath(),
                p.Length,
                p.LastWriteTimeUtc
            ),
            new()
            {
                RecurseSubdirectories = true,
            });

        var lst = new List<FSE>();

        foreach (var entry in fse)
        {
            if (entry.isDir) continue;

            lst.Add(entry);

            int bp = 0;
            // by file type
            // - read tags
            // - make cache model
        }

        var allSize = lst.Sum(p => p.size);
        var fmt = allSize.ToString("N0");
        //SUCCESS
    }
}