using Microsoft.Win32;

namespace CursorLang.Tests.Shared;

/// <summary>
/// A registry key of one test's own. Startup outside a package lives in the
/// registry, and the real startup list of the user is no place to experiment.
/// </summary>
public sealed class TempRegistryKey : IDisposable
{
    private const string Parent = @"Software\CursorLang.Tests";

    private readonly string _path;

    public TempRegistryKey()
    {
        _path = $@"{Parent}\{Guid.NewGuid():N}";
        Key = Registry.CurrentUser.CreateSubKey(_path);
    }

    public RegistryKey Key { get; }

    public void Dispose()
    {
        Key.Dispose();

        try
        {
            Registry.CurrentUser.DeleteSubKeyTree(_path, throwOnMissingSubKey: false);
        }
        catch (Exception e) when (e is System.Security.SecurityException or UnauthorizedAccessException)
        {
            // A leftover key is no reason to fail a test that passed
        }
    }
}