public ProductSubscription(int id, string customerEmailAddress, DateTime expirationDateTime)
{
Id = id;
CustomerEmailAddress = customerEmailAddress;
ExpirationDateTime = expirationDateTime;
Status = ProductSubscriptionStatus.ActivationPending;
}
public void Cancel()
{
if (Status == ProductSubscriptionStatus.Cancelled)
{
throw new ProductSubscriptionWasAlreadyCancelledException();
}
Status = ProductSubscriptionStatus.Cancelled;
Cancelled?.Invoke(this, new ProductSubscriptionCancelledEventArgs());
}
