Otter-App-Android-Funkwhale/app/src/main/java/com/github/apognu/otter/repositories/TracksRepository.kt

61 lines
2.1 KiB
Kotlin

package com.github.apognu.otter.repositories
import android.content.Context
import com.github.apognu.otter.Otter
import com.github.apognu.otter.utils.*
import com.github.kittinunf.fuel.gson.gsonDeserializerOf
import com.google.android.exoplayer2.offline.Download
import com.google.gson.reflect.TypeToken
import kotlinx.coroutines.flow.map
import kotlinx.coroutines.flow.toList
import kotlinx.coroutines.runBlocking
import java.io.BufferedReader
class TracksRepository(override val context: Context?, albumId: Int) : Repository<Track, TracksCache>() {
override val cacheId = "tracks-album-$albumId"
override val upstream = HttpUpstream<Track, OtterResponse<Track>>(HttpUpstream.Behavior.AtOnce, "/api/v1/tracks/?playable=true&album=$albumId&ordering=disc_number,position", object : TypeToken<TracksResponse>() {}.type)
override fun cache(data: List<Track>) = TracksCache(data)
override fun uncache(reader: BufferedReader) = gsonDeserializerOf(TracksCache::class.java).deserialize(reader)
companion object {
fun getDownloadedIds(): List<Int>? {
val cursor = Otter.get().exoDownloadManager.downloadIndex.getDownloads()
val ids: MutableList<Int> = mutableListOf()
while (cursor.moveToNext()) {
val download = cursor.download
download.getMetadata()?.let {
if (download.state == Download.STATE_COMPLETED) {
ids.add(it.id)
}
}
}
return ids
}
}
override fun onDataFetched(data: List<Track>): List<Track> = runBlocking {
val favorites = FavoritedRepository(context).fetch(Origin.Cache.origin)
.map { it.data }
.toList()
.flatten()
val downloaded = getDownloadedIds() ?: listOf()
data.map { track ->
track.favorite = favorites.contains(track.id)
track.downloaded = downloaded.contains(track.id)
track.bestUpload()?.let { upload ->
val url = mustNormalizeUrl(upload.listen_url)
track.cached = Otter.get().exoCache.isCached(url, 0, upload.duration * 1000L)
}
track
}.sortedWith(compareBy({ it.disc_number }, { it.position }))
}
}