public DraftId Choose(string offerIdString, string tenantIdString, DateTime from, DateTime to)
{
var offerId = OfferId.From(offerIdString);
var offer = _offerRepository.Get(offerId);
var tenantId = TenantId.From(tenantIdString);
var period = Period.From(from, to);
var discount = _discountService.CalculateDiscount(tenantIdString, offerIdString, from, to);
var draftFactory = new DraftFactory(discount, new DefaultDraftNumberGenerator());
var draft = offer.Choose(tenantId, period, draftFactory);
_draftRepository.Save(draft);
return(draft.Id);
}
