class VideoController constructor(application: Application,
                                  private val videoRepository: VideoRepository) {
    @Location("/cameras/{cameraId}/videos")
    data class ListVideos(val cameraId: String)

    @Location("/videos/{videoId}")
    data class GetVideo(val videoId: String)

    init {
        application.routing {
            get<ListVideos> {
                if (!isValidUUID(it.cameraId)) {
                    call.respond(HttpStatusCode.BadRequest, "Camera Id is invalid")
                }

                call.respond(list(UUID.fromString(it.cameraId)))
            }

            get<GetVideo> {
                if (!isValidUUID(it.videoId)) {
                    call.respond(HttpStatusCode.BadRequest, "Camera Id is invalid")
                }

                get(UUID.fromString(it.videoId))?.let { video ->
                    call.respond(video)
                }.orElse {
                    call.respond(HttpStatusCode.NotFound)
                }
            }
        }
    }

    fun list(cameraId: UUID): List<VideoChunk> = videoRepository.listByParent(cameraId)
    fun get(videoId: UUID): VideoChunk? = videoRepository.get(videoId)
}