- Replace null with Option in GameResultStreamListener, PairingRepository,
ParticipantRepository, TournamentService
- Replace isInstanceOf checks with pattern matching in GameResultStreamListener
- Wrap var in SwissPairingService resolveConflicts with scalafix:off
- Apply spotlessScalaApply formatting across tournament and official-bots modules
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Replace synchronous account→core game-creation HTTP call and plain
pub/sub bot game-start events with Redis Streams using consumer groups,
XACK, retry, and a Dead Letter Queue for at-least-once delivery and
observability.
- account: GameCreationStreamClient publishes game-creation requests and
correlates responses via a per-instance consumer group (NCS-91)
- core: GameCreationStreamListener consumes requests, calls
GameCreationService, publishes response events, retries, and routes
exhausted/unparseable events to the DLQ (NCS-91, NCS-93, NCS-94)
- official-bots: bot game-start events migrated from pub/sub to Streams
with consumer group, XACK, retry, and DLQ (NCS-92)
- account EventPublisher dual-writes to the stream and legacy pub/sub
channel for backward compatibility
- all flows use the typed EventEnvelope (eventId/type/payload/timestamp/
correlationId) with DLQ error context (eventType, error, attempt)
- register new DTOs and EventEnvelope/EventType for native reflection
Closes NCS-91, NCS-92, NCS-93, NCS-94
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---------
Co-authored-by: Janis Eccarius <eccariusjanis@gmail.com>
Reviewed-on: #62
LQ63
Lala, Shahd
Janis
shosho996