Fix file intent crash

Keep tweaking this buggy system to fix another bug I caused where the app would crash if selecting a song while the app was inactive.

app/src/main/java/org/oxycblt/auxio/MainFragment.kt

@@ -19,6 +19,7 @@ import org.oxycblt.auxio.detail.DetailViewModel
 import org.oxycblt.auxio.music.MusicStore
 import org.oxycblt.auxio.music.Song
 import org.oxycblt.auxio.playback.PlaybackViewModel
+import org.oxycblt.auxio.playback.handleFileIntent
 import org.oxycblt.auxio.playback.shouldHandleFileIntent
 import org.oxycblt.auxio.ui.Accent
 import org.oxycblt.auxio.ui.fixAnimInfoLeak
@@ -122,9 +123,7 @@ class MainFragment : Fragment() {
         // File intents chain-navigate towards PlaybackFragment
         // Not for any express purpose, I just prefer it this way.
         if (shouldHandleFileIntent()) {
-            findNavController().navigate(
-                MainFragmentDirections.actionGoToPlayback()
-            )
+            handleFileIntent(playbackModel)
         } else {
             // If there is no file intent restore playback as usual
             playbackModel.restorePlaybackIfNeeded(requireContext())

app/src/main/java/org/oxycblt/auxio/loading/LoadingFragment.kt

@@ -47,7 +47,7 @@ class LoadingFragment : Fragment() {
 
         loadingModel.response.observe(viewLifecycleOwner) { response ->
             when (response) {
-                // Success should lead to Auxio navigating away from the fragment
+                // Success should lead to navigation to the main fragment
                 MusicStore.Response.SUCCESS -> findNavController().navigate(
                     LoadingFragmentDirections.actionToMain()
                 )
@@ -60,7 +60,7 @@ class LoadingFragment : Fragment() {
             }
         }
 
-        if (noPermissions()) {
+        if (hasNoPermissions()) {
             // MusicStore.Response.NO_PERMS isnt actually returned by MusicStore, its just
             // a way to keep the current permission state across device changes
             loadingModel.notifyNoPermissions()
@@ -85,7 +85,7 @@ class LoadingFragment : Fragment() {
 
     // --- PERMISSIONS ---
 
-    private fun noPermissions(): Boolean {
+    private fun hasNoPermissions(): Boolean {
         val needRationale = shouldShowRequestPermissionRationale(
             Manifest.permission.READ_EXTERNAL_STORAGE
         )

app/src/main/java/org/oxycblt/auxio/music/Models.kt

@@ -148,8 +148,7 @@ data class Genre(
         }
     }
 
-    val totalDuration: String get() =
-        songs.sumOf { it.seconds }.toDuration()
+    val totalDuration: String get() = songs.sumOf { it.seconds }.toDuration()
 
     fun linkSong(song: Song) {
         mSongs.add(song)

app/src/main/java/org/oxycblt/auxio/playback/PlaybackFragment.kt

@@ -194,12 +194,7 @@ class PlaybackFragment : Fragment(), SeekBar.OnSeekBarChangeListener {
         }
 
         if (shouldHandleFileIntent()) {
-            val intent = requireActivity().intent
-
-            // Ensure that this wont fire again by putting a boolean extra
-            intent.putExtra(PlaybackUtils.KEY_INTENT_FIRED, true)
-
-            playbackModel.playWithIntent(intent, requireContext())
+            handleFileIntent(playbackModel)
         }
     }
 

app/src/main/java/org/oxycblt/auxio/playback/PlaybackUtils.kt

@@ -17,3 +17,15 @@ fun Fragment.shouldHandleFileIntent(): Boolean {
         intent.action == Intent.ACTION_VIEW &&
         !intent.getBooleanExtra(PlaybackUtils.KEY_INTENT_FIRED, false)
 }
+
+/**
+ * Actually use the intent and push it to [playbackModel]
+ */
+fun Fragment.handleFileIntent(playbackModel: PlaybackViewModel) {
+    val intent = requireActivity().intent
+
+    // Ensure that this wont fire again by putting a boolean extra
+    intent.putExtra(PlaybackUtils.KEY_INTENT_FIRED, true)
+
+    playbackModel.playWithIntent(intent, requireContext())
+}

app/src/main/java/org/oxycblt/auxio/playback/PlaybackViewModel.kt

@@ -329,7 +329,7 @@ class PlaybackViewModel : ViewModel(), PlaybackStateManager.Callback {
      * @param context [Context] required.
      */
     fun restorePlaybackIfNeeded(context: Context) {
-        if (!playbackManager.isRestored) {
+        if (!playbackManager.isRestored && playbackManager.song == null) {
             viewModelScope.launch {
                 playbackManager.getStateFromDatabase(context)
             }

app/src/main/java/org/oxycblt/auxio/playback/queue/QueueFragment.kt

@@ -102,6 +102,8 @@ class QueueFragment : Fragment() {
     override fun onResume() {
         super.onResume()
 
+        // QueueFragment shouldn't be handling file intents, as the effects it has on the recycler
+        // are really weird.
         if (shouldHandleFileIntent()) {
             findNavController().navigateUp()
         }

app/src/main/java/org/oxycblt/auxio/ui/InterfaceUtils.kt

@@ -214,7 +214,7 @@ private fun isSystemBarOnBottom(activity: Activity): Boolean {
     return (!canMove || width < height)
 }
 
-// --- FRAGMENT NONSENSE ---
+// --- HACKY NIGHTMARES ---
 
 /**
  * Use reflection to fix a memory leak in the [Fragment] source code where the focused view will