113 lines
3.3 KiB
Kotlin
113 lines
3.3 KiB
Kotlin
package com.github.apognu.otter.fragments
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import android.os.Bundle
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import androidx.lifecycle.lifecycleScope
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import androidx.recyclerview.widget.RecyclerView
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import com.github.apognu.otter.R
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import com.github.apognu.otter.adapters.FavoritesAdapter
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import com.github.apognu.otter.repositories.FavoritesRepository
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import com.github.apognu.otter.repositories.TracksRepository
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import com.github.apognu.otter.utils.*
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import com.google.android.exoplayer2.offline.Download
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import kotlinx.android.synthetic.main.fragment_favorites.*
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import kotlinx.coroutines.Dispatchers.IO
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import kotlinx.coroutines.Dispatchers.Main
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import kotlinx.coroutines.flow.collect
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import kotlinx.coroutines.launch
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import kotlinx.coroutines.withContext
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class FavoritesFragment : FunkwhaleFragment<Track, FavoritesAdapter>() {
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override val viewRes = R.layout.fragment_favorites
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override val recycler: RecyclerView get() = favorites
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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adapter = FavoritesAdapter(context, FavoriteListener())
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repository = FavoritesRepository(context)
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watchEventBus()
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}
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override fun onResume() {
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super.onResume()
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lifecycleScope.launch(IO) {
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RequestBus.send(Request.GetCurrentTrack).wait<Response.CurrentTrack>()?.let { response ->
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withContext(Main) {
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adapter.currentTrack = response.track
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adapter.notifyDataSetChanged()
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}
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}
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refreshDownloadedTracks()
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}
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play.setOnClickListener {
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CommandBus.send(Command.ReplaceQueue(adapter.data.shuffled()))
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}
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}
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private fun watchEventBus() {
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lifecycleScope.launch(Main) {
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EventBus.get().collect { message ->
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when (message) {
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is Event.DownloadChanged -> refreshDownloadedTrack(message.download)
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}
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}
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}
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lifecycleScope.launch(Main) {
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CommandBus.get().collect { command ->
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when (command) {
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is Command.RefreshTrack -> refreshCurrentTrack(command.track)
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}
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}
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}
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}
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private suspend fun refreshDownloadedTracks() {
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val downloaded = TracksRepository.getDownloadedIds() ?: listOf()
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withContext(Main) {
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adapter.data = adapter.data.map {
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it.downloaded = downloaded.contains(it.id)
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it
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}.toMutableList()
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adapter.notifyDataSetChanged()
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}
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}
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private suspend fun refreshDownloadedTrack(download: Download) {
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if (download.state == Download.STATE_COMPLETED) {
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download.getMetadata()?.let { info ->
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adapter.data.withIndex().associate { it.value to it.index }.filter { it.key.id == info.id }.toList().getOrNull(0)?.let { match ->
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withContext(Main) {
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adapter.data[match.second].downloaded = true
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adapter.notifyItemChanged(match.second)
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}
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}
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}
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}
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}
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private fun refreshCurrentTrack(track: Track?) {
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track?.let {
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adapter.currentTrack = track
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adapter.notifyDataSetChanged()
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}
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}
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inner class FavoriteListener : FavoritesAdapter.OnFavoriteListener {
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override fun onToggleFavorite(id: Int, state: Boolean) {
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(repository as? FavoritesRepository)?.let { repository ->
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when (state) {
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true -> repository.addFavorite(id)
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false -> repository.deleteFavorite(id)
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}
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}
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}
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}
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}
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