namespace Speckle.Connectors.Logging;

public static class ActivityScope
{
  private static readonly AsyncLocal<Dictionary<string, object?>> s_tags = new() { Value = new() };
  public static IReadOnlyDictionary<string, object?> Tags => s_tags.Value ?? [];
  public static IReadOnlyList<KeyValuePair<string, object?>> TagsList { get; } =
    new List<KeyValuePair<string, object?>>(s_tags.Value ?? []);

  public static IDisposable SetTag(string key, string value)
  {
    s_tags.Value ??= new();
    s_tags.Value[key] = value;
    return new TagScope(key);
  }

  private sealed class TagScope(string key) : IDisposable
  {
    public void Dispose() => s_tags.Value?.Remove(key);
  }
}