funkwhale-app-android/app/src/main/java/audio/funkwhale/ffa/activities/DownloadsActivity.kt

126 lines
3.6 KiB
Kotlin

package audio.funkwhale.ffa.activities
import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import androidx.lifecycle.lifecycleScope
import androidx.recyclerview.widget.LinearLayoutManager
import com.google.android.exoplayer2.offline.Download
import kotlinx.android.synthetic.main.activity_downloads.downloads
import kotlinx.coroutines.Dispatchers.Default
import kotlinx.coroutines.Dispatchers.Main
import kotlinx.coroutines.delay
import kotlinx.coroutines.flow.collect
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import audio.funkwhale.ffa.FFA
import audio.funkwhale.ffa.R
import audio.funkwhale.ffa.adapters.DownloadsAdapter
import audio.funkwhale.ffa.utils.Event
import audio.funkwhale.ffa.utils.EventBus
import audio.funkwhale.ffa.utils.getMetadata
class DownloadsActivity : AppCompatActivity() {
lateinit var adapter: DownloadsAdapter
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_downloads)
downloads.itemAnimator = null
adapter = DownloadsAdapter(this, DownloadChangedListener()).also {
it.setHasStableIds(true)
downloads.layoutManager = LinearLayoutManager(this)
downloads.adapter = it
}
lifecycleScope.launch(Default) {
while (true) {
delay(1000)
refreshProgress()
}
}
}
override fun onResume() {
super.onResume()
lifecycleScope.launch(Default) {
EventBus.get().collect { event ->
if (event is Event.DownloadChanged) {
refreshTrack(event.download)
}
}
}
refresh()
}
private fun refresh() {
lifecycleScope.launch(Main) {
val cursor = audio.funkwhale.ffa.FFA.get().exoDownloadManager.downloadIndex.getDownloads()
adapter.downloads.clear()
while (cursor.moveToNext()) {
val download = cursor.download
download.getMetadata()?.let { info ->
adapter.downloads.add(info.apply {
this.download = download
})
}
}
adapter.notifyDataSetChanged()
}
}
private suspend fun refreshTrack(download: Download) {
download.getMetadata()?.let { info ->
adapter.downloads.withIndex().associate { it.value to it.index }.filter { it.key.id == info.id }.toList().getOrNull(0)?.let { match ->
if (download.state != info.download?.state) {
withContext(Main) {
adapter.downloads[match.second] = info.apply {
this.download = download
}
adapter.notifyItemChanged(match.second)
}
}
}
}
}
private suspend fun refreshProgress() {
val cursor = audio.funkwhale.ffa.FFA.get().exoDownloadManager.downloadIndex.getDownloads()
while (cursor.moveToNext()) {
val download = cursor.download
download.getMetadata()?.let { info ->
adapter.downloads.withIndex().associate { it.value to it.index }.filter { it.key.id == info.id }.toList().getOrNull(0)?.let { match ->
if (download.state == Download.STATE_DOWNLOADING && download.percentDownloaded != info.download?.percentDownloaded ?: 0) {
withContext(Main) {
adapter.downloads[match.second] = info.apply {
this.download = download
}
adapter.notifyItemChanged(match.second)
}
}
}
}
}
}
inner class DownloadChangedListener : DownloadsAdapter.OnDownloadChangedListener {
override fun onItemRemoved(index: Int) {
adapter.downloads.removeAt(index)
adapter.notifyDataSetChanged()
}
}
}