FPAlbumRepositoryImpl.kt

class AlbumRepositoryImpl(
    private val albumApiService: AlbumApiService,
    private val mapAlbumDto: (NetworkAlbum) -> Album
) : AlbumRepository {

    override fun getAlbumById(id: String): Single<SimpleResult<Album>> {
        return albumApiService.getAlbumById(id).map {
            it.fold(
                success = { dto -> Result.Success(mapAlbumDto(dto)) },
                failure = { throwable -> Result.Failure(throwable) }
            )
        }
    }
}