feat: Fase 6 — Refunds within the marketplace epic. Previous phases F1-F4 done

[edsonwade]

Session Report — hotfix/system-latency-issues-services-phase-6

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Branch Context

Working on Fase 6 — Refunds within the marketplace epic. Previous phases F1–F5 are browser-verified and merged. This session focused on two test/type failures introduced by the F6 implementation.

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Features / Tasks Executed

Task 1 — Fix OrderRefundIntegrationTest.redeliveredMessageIsIdempotent (FAILED → ROOT CAUSE FOUND → FIXED)

Skill phase: superpowers:systematic-debugging Phase 1 → 4

Step	Action
1	Read the error: expected: 1L but was: 0L at line 180 — outbox row count was 0
2	Read OrderRefundIntegrationTest.java — two Thread.sleep(3000) calls = 6 s total sleep
3	Read PaymentRefundConsumer.java — calls orderService.applyRefund() with manual ack
4	Read OrderService.applyRefund() — idempotency guard at status REFUNDED returns early (no second outbox row)
5	Read OutboxEventPublisher.java — @scheduled(fixedDelay = 5000) fires every 5 s, marks rows PUBLISHED
6	Read OutboxRepository.findPendingEvents() — filters WHERE status = 'PENDING'
7	Root cause confirmed: publisher fires within the 6 s window, row transitions PENDING → PUBLISHED, findPendingEvents() returns 0
8	Fixed both assertions in the test to use outboxRepository.findAll() — verifies row existence regardless of lifecycle status

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Next Steps

1. User runs mvn test -pl order-service -Dtest=OrderRefundIntegrationTest -Dapi.version=1.44 — both tests should pass
2. User runs npm run build && npm run lint — should be clean
3. Rebuild stack (docker-compose up -d --build order-service payment-service frontend) and browser-verify the full refund flow end-to-end
4. On browser-verify passing → F6 BROWSER-VERIFIED and ready to commit

## Session Report — `hotfix/system-latency-issues-services-phase-6`

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Branch Context

Working on Fase 6 — Refunds within the marketplace epic. Previous phases F1–F5 are browser-verified and merged. This session focused on two test/type failures introduced by the F6 implementation.

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Features / Tasks Executed

Task 1 — Fix OrderRefundIntegrationTest.redeliveredMessageIsIdempotent (FAILED → ROOT CAUSE FOUND → FIXED)

Skill phase: superpowers:systematic-debugging Phase 1 → 4

Step	Action
1	Read the error: expected: 1L but was: 0L at line 180 — outbox row count was 0
2	Read OrderRefundIntegrationTest.java — two Thread.sleep(3000) calls = 6 s total sleep
3	Read PaymentRefundConsumer.java — calls orderService.applyRefund() with manual ack
4	Read OrderService.applyRefund() — idempotency guard at status REFUNDED returns early (no second outbox row)
5	Read OutboxEventPublisher.java — @Scheduled(fixedDelay = 5000) fires every 5 s, marks rows PUBLISHED
6	Read OutboxRepository.findPendingEvents() — filters WHERE status = 'PENDING'
7	Root cause confirmed: publisher fires within the 6 s window, row transitions PENDING → PUBLISHED, findPendingEvents() returns 0
8	Fixed both assertions in the test to use outboxRepository.findAll() — verifies row existence regardless of lifecycle status

Root cause: Race between @Scheduled(fixedDelay=5000) OutboxEventPublisher and Thread.sleep(3000+3000) in the idempotency test. The first test (paymentRefundedMessageAppliesRefund) only slept 3 s and passed because the publisher hadn't fired yet.

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Task 2 — Fix TypeScript build error in frontend/src/test/mocks/handlers.ts (1 error → 0 errors)

Step	Action
1	Read the tsc error: 'id' does not exist in type 'PaymentResponse' at line 110
2	Read types.ts:256 — PaymentResponse was updated in F6 from id: number to paymentId: number (with a comment explaining the backend JSON key)
3	Fixed the mock constant: id: 1 → paymentId: 1

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Files Modified

File	Change
[order-service/src/test/java/.../integration/OrderRefundIntegrationTest.java](https://claude.ai/epitaxy/order-service/src/test/java/code/with/vanilson/orderservice/integration/OrderRefundIntegrationTest.java)	Both assertions: findPendingEvents() → findAll() with explanatory comments
[frontend/src/test/mocks/handlers.ts](https://claude.ai/epitaxy/frontend/src/test/mocks/handlers.ts)	PAYMENT mock constant: id: 1 → paymentId: 1

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Current State

Item	Status
mvn test -pl order-service -Dtest=OrderRefundIntegrationTest	Awaiting user run
npm run build && npm run lint	Awaiting user run (type error was the only failure)
F6 refunds — backend implementation	Complete (F6 branch)
F6 refunds — browser verification	Pending (awaits stack rebuild)

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Next Steps

1. User runs mvn test -pl order-service -Dtest=OrderRefundIntegrationTest -Dapi.version=1.44 — both tests should pass
2. User runs npm run build && npm run lint — should be clean
3. Rebuild stack (docker-compose up -d --build order-service payment-service frontend) and browser-verify the full refund flow end-to-end
4. On browser-verify passing → F6 BROWSER-VERIFIED and ready to commit