noz-cli/NozCli/Commands/LsCommand.cs

using NozCli.Repl;
using Spectre.Console;

namespace NozCli.Commands;

public class LsCommand : ICommand
{
    public string Name        => "ls";
    public string Description => "List notes and folders at current path";
    public string Usage       => "ls [-l]";

    public async Task ExecuteAsync(string[] args, ReplContext ctx)
    {
        var detailed = args.Contains("-l");
        var folders  = ctx.FoldersInView().OrderBy(f => f).ToList();
        var prefix   = ctx.PathPrefix();

        // Determine which segments are folders (have children) vs direct notes
        var directNotes = ctx.NotesInView()
            .Where(n =>
            {
                var depth = prefix is null ? 0 : prefix.Split('/').Length;
                return n.Slug.Split('/').Length == depth + 1;
            })
            .OrderBy(n => n.Title)
            .ToList();

        var subFolders = ctx.FoldersInView()
            .Where(f => directNotes.All(n => n.Slug.Split('/').Last() != f))
            .OrderBy(f => f)
            .ToList();

        if (!detailed)
        {
            foreach (var folder in subFolders)
                AnsiConsole.MarkupLine($"  [blue]{folder}/[/]");
            foreach (var note in directNotes)
                AnsiConsole.MarkupLine($"  [white]{note.Slug.Split('/').Last()}[/]");
            return;
        }

        var table = new Table().BorderStyle(Style.Plain).HideHeaders();
        table.AddColumns("", "name", "status", "lang", "title");

        foreach (var folder in subFolders)
        {
            var count = ctx.NotesInView()
                .Count(n => n.Slug.StartsWith((prefix is null ? "" : prefix + "/") + folder + "/"));
            table.AddRow(
                "[blue]📁[/]",
                $"[blue]{folder}/[/]",
                $"[dim]{count} notes[/]",
                "",
                ""
            );
        }

        foreach (var note in directNotes)
        {
            var statusColor = note.Status switch
            {
                "seed"      => "yellow",
                "budding"   => "purple",
                "evergreen" => "teal",
                _           => "grey"
            };
            table.AddRow(
                "●",
                $"[white]{note.Slug.Split('/').Last()}[/]",
                $"[{statusColor}]{note.Status}[/]",
                $"[dim]{note.Lang}[/]",
                $"[dim]{note.Title}[/]"
            );
        }

        AnsiConsole.Write(table);
        await Task.CompletedTask;
    }
}