mancala/docs/specs/quarkus-backend/tasks.md
Halit Aksoy ec833b4ec5 docs(backend): spec the move to Java and Quarkus
Requirements, design and tasks for rewriting the backend in Java 25 with
Quarkus while keeping the protocol, the API and the stored data.
2026-10-16 11:00:44 +03:00

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# Quarkus backend: tasks
Work through the tasks in order; each ends with its tests passing and a commit. Tick a task when it is committed.
- [x] 1. **Spec**: requirements, design and tasks.
- [ ] 2. **Project and engine**: Maven project in `apps/backend-quarkus` (Quarkus 3.40, Java 25); the engine port
with unit tests; `scripts/record-engine-games.js` and the parity test (R2).
- [ ] 3. **Models, game loop and auth**: the wire types and the shared `ObjectMapper`; `GameLoop`, `Scheduler`,
`ManualScheduler`; `KeycloakTokenVerifier` with unit tests.
- [ ] 4. **Game logic**: `GameStore`, `MatchMaker`, `GameClocks`, `GameSerialization`, `GameRecorder`,
`GameManager`, `GameClockScheduler`, `LiveGames`, `PublicIds`, `CrashLog`; the in-memory fakes and the ported
unit tests.
- [ ] 5. **Storage**: migrations and their runner, `PostgresGameHistoryRepository`, `GameHistoryService`,
`ValkeyLiveGameStore`, `ValkeyCache`; integration tests with Dev Services.
- [ ] 6. **WebSocket and HTTP**: `RtmtServer` with unit tests, `RtmtEndpoint`, the HTTP resources, `Backend`
wiring and startup, configuration; `@QuarkusTest`s for the API and the WebSocket.
- [ ] 7. **Replace the Node backend**: move the project to `apps/backend`, Dockerfile, `.dockerignore`, compose,
remove the Node sources; build the image.
- [ ] 8. **End to end and docs**: the Chrome tests from `design.md` against the local stack; `README.md`,
`apps/backend/README.md`, `AGENTS.md`, `TODO.md`.