@startuml event-이미지결과조회
!theme mono

title Event Service - 이미지 생성 결과 폴링 조회

participant "EventController" as Controller <<C>>
participant "JobService" as JobSvc <<S>>
participant "Redis Cache" as Cache <<E>>

note over Controller: GET /api/jobs/{jobId}/status
Controller -> JobSvc: getJobStatus(jobId)
activate JobSvc

JobSvc -> Cache: get("job:" + jobId)
activate Cache

alt 캐시 히트
    Cache --> JobSvc: Job data\n{status, result, createdAt}

    alt Job 완료 (status: COMPLETED)
        JobSvc --> Controller: JobStatusResponse\n{jobId, status: COMPLETED,\nimageUrls: {...}}
        Controller --> Client: 200 OK\n{status: COMPLETED,\nimageUrls: {\n  simple: "https://cdn.../simple.png",\n  fancy: "https://cdn.../fancy.png",\n  trendy: "https://cdn.../trendy.png"\n}}

    else Job 진행중 (status: PROCESSING)
        JobSvc --> Controller: JobStatusResponse\n{jobId, status: PROCESSING,\nprogress: 33%}
        Controller --> Client: 200 OK\n{status: PROCESSING,\nprogress: 33%}
        note right: 클라이언트는 3초 후\n재요청

    else Job 실패 (status: FAILED)
        JobSvc --> Controller: JobStatusResponse\n{jobId, status: FAILED, error}
        Controller --> Client: 200 OK\n{status: FAILED, error}
    end

else 캐시 미스
    Cache --> JobSvc: null
    JobSvc --> Controller: NotFoundError
    Controller --> Client: 404 Not Found\n{error: "Job not found"}
end

deactivate Cache
deactivate JobSvc

note over Controller, Cache: 최대 30초 동안 폴링\n(3초 간격, 최대 10회)\n\n타임아웃 시 클라이언트는\n에러 메시지 표시 및\n"다시 생성" 옵션 제공

@enduml