internal static Appointment Create(DateTimeOffset dateOfAppointment, IAppendFacts parent)
{
var fact = new AppointmentCreatedFact() {Id = Guid.NewGuid(), DateOfAppointment = dateOfAppointment};
var appointment = new Appointment(parent);
appointment.Append(fact);
appointment.Apply(fact);
return appointment;
}
internal static Appointment HydrateFrom(AppointmentCreatedFact fact, Customer parent)
{
var appointment = new Appointment(parent);
appointment.Apply(fact);
return appointment;
}