namespace Big.Domain;

/// <summary>The identity of a <see cref="Registration"/> aggregate — opaque, server-assigned,
/// and distinct from the OpenZaak zaak id (which the projection keys on). A value object so the
/// id can travel as a Flowable process variable and back without ever being a bare string.</summary>
public readonly record struct RegistrationId(Guid Value)
{
    /// <summary>Mint a fresh identity for a newly submitted registration.</summary>
    public static RegistrationId New() => new(Guid.NewGuid());

    /// <summary>Rehydrate an id carried as a string (e.g. a Flowable process variable).</summary>
    public static RegistrationId Parse(string value) => new(Guid.Parse(value));

    public override string ToString() => Value.ToString();
}