/**
* Fetches the last {@link Bill} that the user Paid. If User has not paid any bill, then returns
* null
*
* @return
* @since 1.0
*/
public Bill getLastPaidBill() {
Bill bill = null;
int maxBillId = 0;
Iterator itr = this.getBills().iterator();
while (itr.hasNext()) {
Bill tempBill = (Bill) itr.next();
if (tempBill.getStatus().equals(BillStatusEnum.PAID.getValue())) {
if (tempBill.getBillId() > maxBillId) maxBillId = tempBill.getBillId();
bill = tempBill;
}
}
return bill;
}
/**
* Checks if bill has been created for a User and returns true if a Paid or Pending bill exists.
* If no {@link Bill} in {@link BillStatusEnum#PAID} or {@link BillStatusEnum#PENDING} status
* exists, returns false.
*
* <p>Note: Cancelled Bill is not considered since it will never be paid by the user, so a
* cancelled Bill is a non billed user.
*
* @return
* @since 1.0
*/
public boolean isUserBeenBilledOnce() {
// status of the bill could have been updated by some other process, so also checking if the
// bill is pending
// if there is a pending bill, then this is not the first bill
if (this.pendingBill != null
&& this.pendingBill.getStatus().equals(BillStatusEnum.PENDING.getValue())) {
return true;
}
// if user has a paid bill, then this is not the first bill
Iterator itr = this.getBills().iterator();
while (itr.hasNext()) {
Bill tempBill = (Bill) itr.next();
if (tempBill.getStatus().equals(BillStatusEnum.PAID.getValue())) {
return true;
}
}
return false;
}