<UserStory> PAY002: Complete Payments </UserStory>
<Changes>
1. Integrated Controller with PaymentManagementService to support payment completion workflow.
2. Implemented PaymentManagementService::completePayment with validation for invoice ID, payment mode, and status update.
3. Enhanced CustomerMenu with helper functions to display pending invoices in tabular format and allow index-based selection.
4. Added CustomerMenu::selectPaymentMode to capture payment mode choice (OFFLINE/ONLINE).
5. Updated CustomerMenu::completePayments to handle invoice selection, payment mode input, and trigger payment completion via Controller.
6. Implemented notification logic to send confirmation to customers upon successful payment.
</Changes>
<Test>
Acceptance Criteria:
1. Payment status marked completed.
2. Confirmation message shown.
3. Confirmation notification sent.
Precondition:
1. Customer is logged into the system.
2. At least one pending invoice exists for the customer.
3. Datastore is available for storing invoices and updating payment status.
Steps:
1. Navigate to Customer menu and choose "Complete Payments".
- Verify that the system lists pending invoices with tabular details.
2. Select an invoice by index.
- Verify that the chosen invoice is retrieved correctly.
3. Enter payment mode (OFFLINE/ONLINE).
- Verify that the selected mode is applied to the invoice.
4. Confirm payment completion.
- Verify that the invoice status changes to COMPLETED.
- Verify that a confirmation message is displayed.
- Verify that a notification is sent to the customer.
</Test>
<Review>
Sreeja Reghukumar, please review
</Review>
Jissin Mathew
cb3bed4050