Files
muza/app/src/main/kotlin/it/vfsfitvnm/vimusic/utils/YoutubePlayer.kt
2022-06-17 15:27:12 +02:00

67 lines
2.2 KiB
Kotlin

package it.vfsfitvnm.vimusic.utils
import androidx.compose.runtime.*
import androidx.media3.common.MediaItem
import androidx.media3.session.MediaController
import com.google.common.util.concurrent.ListenableFuture
import it.vfsfitvnm.youtubemusic.Outcome
import it.vfsfitvnm.youtubemusic.YouTube
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.guava.await
import kotlinx.coroutines.withContext
class YoutubePlayer(mediaController: MediaController) : PlayerState(mediaController) {
data class Radio(
private val videoId: String? = null,
private val playlistId: String? = null,
private val playlistSetVideoId: String? = null,
private val parameters: String? = null
) {
var nextContinuation by mutableStateOf<Outcome<String?>>(Outcome.Initial)
suspend fun process(): List<MediaItem> {
val token = nextContinuation.valueOrNull
nextContinuation = Outcome.Loading
var mediaItems: List<MediaItem>? = null
nextContinuation = withContext(Dispatchers.IO) {
YouTube.next(
videoId = videoId ?: error("This should not happen"),
playlistId = playlistId,
params = parameters,
playlistSetVideoId = playlistSetVideoId,
continuation = token
)
}.map { nextResult ->
mediaItems = nextResult.items?.map(YouTube.Item.Song::asMediaItem)
nextResult.continuation?.takeUnless { token == nextResult.continuation }
}.recoverWith(token)
return mediaItems ?: emptyList()
}
}
}
val LocalYoutubePlayer = compositionLocalOf<YoutubePlayer?> { null }
@Composable
fun rememberYoutubePlayer(
mediaControllerFuture: ListenableFuture<MediaController>
): YoutubePlayer? {
val mediaController by produceState<MediaController?>(initialValue = null) {
value = mediaControllerFuture.await()
}
val playerState = remember(mediaController) {
YoutubePlayer(mediaController ?: return@remember null).also {
// TODO: should we remove the listener later on?
mediaController?.addListener(it)
}
}
return playerState
}