audioplayer_metadata.kt

fun HandlerInput.buildPlayResponse(audioStream: AudioStream): Optional<Response> {
    val stream = Stream.builder()
        .withOffsetInMilliseconds(audioStream.offsetInMilliseconds)
        .withExpectedPreviousToken(null)
        .withToken(audioStream.streamToken)
        .withUrl(audioStream.file)
        .build()
    val audioItem = AudioItem.builder()
        .withMetadata(
            AudioItemMetadata.builder()
                .withTitle(audioStream.title)
                .withArt(
                    Image.builder().addSourcesItem(
                        ImageInstance.builder()
                            .withUrl(audioStream.imageSmall).build()
                    ).build()
                )
                .withBackgroundImage(
                    Image.builder().addSourcesItem(
                        ImageInstance.builder()
                            .withUrl(audioStream.image)
                            .build()
                    ).build()
                )
                .build()
        )
        .withStream(stream)
        .build()
    val playDirective = PlayDirective.builder()
        .withPlayBehavior(PlayBehavior.REPLACE_ALL)
        .withAudioItem(audioItem)
        .build()
    return responseBuilder
        .addDirective(playDirective)
        .build()
}