namespace AcDream.UI.Abstractions;

/// <summary>
/// No-op <see cref="ICommandBus"/>. Accepts any published command and
/// discards it. Used as the default in D.2a until chat / inventory panels
/// need real command routing.
/// </summary>
public sealed class NullCommandBus : ICommandBus
{
    /// <summary>Shared singleton — the bus is stateless.</summary>
    public static readonly NullCommandBus Instance = new();

    private NullCommandBus() { }

    /// <inheritdoc />
    public void Publish<T>(T command) where T : notnull
    {
        // Intentionally empty. Panel-emitted commands in D.2a are
        // read-only diagnostics; nothing routes server-ward yet.
    }
}