public void Redeem(PromotionRecipient recipient)
{
if (!this.CanRedeem(recipient))
{
throw new InvalidOperationException();
}
_recipients.Add(recipient);
this.AddDomainEvent(new PromotionRedeemedDomainEvent(recipient.User.Id, Id, CurrencyType, Amount));
}
private bool CanRedeem(PromotionRecipient recipient)
{
return(this.IsActive() && !this.IsRedeemBy(recipient));
}
public bool IsRedeemBy(PromotionRecipient recipient)
{
return(Recipients.Any(x => x.User.Id == recipient.User.Id));
}