classDiagram
    direction LR
    class ForecastController {
        -ForecastQueryService service
        +forecast(String routeId) ForecastResponse
    }
    class ForecastQueryService {
        -ForecastRepository repository
        -Clock clock
        +latestOf(String routeId) ForecastResponse
    }
    class ForecastRepository {
        <<repository>>
        +findLatest(String routeId) Optional~ForecastResponse~
    }
    class ForecastResponse {
        -String routeId
        -String judgedAt
        -String freshness
        -List~StopResponse~ stops
    }
    class StopResponse {
        -int stopOrder
        -Integer percent
        -String status
    }
    ForecastController --> ForecastQueryService
    ForecastQueryService --> ForecastRepository
    ForecastRepository ..> ForecastResponse
    ForecastResponse o-- StopResponse