public Collection<Coupon> getAllPurchasedCoupons() throws CouponSystemException {
Collection<Coupon> result = new ArrayList<>();
for (Long couponId : custcouponDBDAO.getAllCouponsByCustomer(customer.getId())) {
result.add(coupDBDAO.get(couponId));
}
return result;
}
public void purchaseCoupon(Coupon c) throws CouponSystemException {
if (!(custcouponDBDAO.HasCouponBeenPurchased(c, customer))) {
Coupon temp_coupon = coupDBDAO.get(c.getId());
if (temp_coupon.getAmount() == 0) {
throw new CouponSystemException("cannot purchase coupon - no more left");
} else { // to do - check that coupon is not expired
custcouponDBDAO.createCoupon(customer.getId(), c.getId());
temp_coupon.setAmount(c.getAmount() - 1);
coupDBDAO.update(temp_coupon);
}
}
}