namespace ZB.MOM.WW.Tools.LdapProbe;

/// <summary>Console formatting and credential prompting.</summary>
public static class Ui
{
    public static void Section(string title)
    {
        Console.WriteLine();
        Write(ConsoleColor.Cyan, $"── {title} " + new string('─', Math.Max(0, 66 - title.Length)));
    }

    public static void Ok(string message) => Write(ConsoleColor.Green, "  ✓ " + message);
    public static void Bad(string message) => Write(ConsoleColor.Red, "  ✗ " + message);
    public static void Warn(string message) => Write(ConsoleColor.Yellow, "  ! " + message);
    public static void Info(string message) => Console.WriteLine("    " + message);

    public static void Field(string name, string? value) =>
        Console.WriteLine($"    {name,-22} {value ?? "(not set)"}");

    private static void Write(ConsoleColor color, string message)
    {
        var previous = Console.ForegroundColor;
        try
        {
            Console.ForegroundColor = color;
            Console.WriteLine(message);
        }
        finally
        {
            Console.ForegroundColor = previous;
        }
    }

    public static string Prompt(string label, string? preset = null)
    {
        if (!string.IsNullOrWhiteSpace(preset)) return preset;
        Console.Write($"  {label}: ");
        return Console.ReadLine()?.Trim() ?? "";
    }

    /// <summary>
    /// Reads a password without echoing it. Falls back to a plain read when input is
    /// redirected (a pipe has no key events), so the probe still works non-interactively.
    /// </summary>
    public static string PromptSecret(string label)
    {
        Console.Write($"  {label}: ");

        if (Console.IsInputRedirected)
        {
            var piped = Console.ReadLine() ?? "";
            Console.WriteLine("(read from stdin)");
            return piped;
        }

        var buffer = new Stack<char>();
        while (true)
        {
            var key = Console.ReadKey(intercept: true);
            switch (key.Key)
            {
                case ConsoleKey.Enter:
                    Console.WriteLine();
                    return new string(buffer.Reverse().ToArray());
                case ConsoleKey.Backspace when buffer.Count > 0:
                    buffer.Pop();
                    Console.Write("\b \b");
                    break;
                case ConsoleKey.Backspace:
                    break;
                case ConsoleKey.Escape:
                    Console.WriteLine();
                    return "";
                default:
                    if (!char.IsControl(key.KeyChar))
                    {
                        buffer.Push(key.KeyChar);
                        Console.Write('*');
                    }

                    break;
            }
        }
    }
}