<UserStory> PAY001: Generate Invoice </UserStory>
<Changes>
1. Added Utility.h to project configuration for supporting invoice generation utilities.
2. Updated Invoice model to use string-based keys for parts mapping instead of integer keys.
3. Implemented PaymentManagementService::generateInvoice to aggregate labour cost, parts cost, and apply discounts.
4. Integrated invoice creation with Factory to instantiate Invoice objects and persist them into datastore.
5. Enhanced Enums with PaymentMode::NOTSET to handle default invoice state.
</Changes>
<Test>
Acceptance Criteria:
1. Invoice auto-generates for each service booking once jobs are completed.
2. Invoice shows a clear breakdown of charges including labour cost, parts cost, discount, and total amount.
Precondition:
1. Service booking exists with at least one service and required inventory items.
2. Datastore is available for storing invoices.
3. Payment mode and status enums are properly configured.
Steps:
1. Complete all jobs in a service booking.
- Verify that PaymentManagementService::generateInvoice is triggered.
2. Check datastore for newly created invoice.
- Verify that invoice contains booking ID, labour cost, parts cost, discount, and total amount.
3. Inspect invoice details.
- Verify that breakdown of charges is accurate and discount is applied correctly.
4. Confirm invoice status.
- Verify that invoice is created with PaymentMode::NOTSET and PaymentStatus::PENDING.
</Test>
<Review>
Sreeja Reghukumar, please review
</Review>
Jissin Mathew
61f70a54f6