refactor(ui): improve intent handling and collection view state

- Update `handleStartIntent` and `handleStartPlayer` in `PlayerFragment` to ensure intents are only cleared if successfully handled and stations are valid.
- Refine star icon rendering in `CollectionAdapter` by clearing color filters when appropriate.
- Remove obsolete commented-out code and update log messages in `PlayerFragment`, `PlayerService`, and `LayoutHolder`.
- Uncomment maintenance preference updates in `SettingsFragment`.
- Reformat code for better readability in `CollectionAdapter`.

app/src/main/java/com/michatec/radio/PlayerFragment.kt

@@ -561,15 +561,27 @@ class PlayerFragment : Fragment(),
 
     /* Handles this activity's start intent */
     private fun handleStartIntent() {
-        if ((activity as Activity).intent.action != null) {
-            when ((activity as Activity).intent.action) {
-                Keys.ACTION_SHOW_PLAYER -> handleShowPlayer()
-                Intent.ACTION_VIEW -> handleViewIntent()
-                Keys.ACTION_START -> handleStartPlayer()
+        val intent = (activity as Activity).intent
+        if (intent.action != null && intent.action?.isNotEmpty() == true) {
+            var handled = false
+            when (intent.action) {
+                Keys.ACTION_SHOW_PLAYER -> {
+                    handleShowPlayer()
+                    handled = true
+                }
+                Intent.ACTION_VIEW -> {
+                    handleViewIntent()
+                    handled = true
+                }
+                Keys.ACTION_START -> {
+                    handled = handleStartPlayer()
                 }
             }
+            if (handled) {
                 // clear intent action to prevent double calls
-        (activity as Activity).intent.action = ""
+                intent.action = ""
+            }
+        }
     }
 
 
@@ -590,12 +602,12 @@ class PlayerFragment : Fragment(),
                 val scheme: String = intentUri.scheme ?: String()
                 // CASE: intent is a web link
                 if (scheme.startsWith("http")) {
-                    Log.i(TAG, "Transistor was started to handle a web link.")
+                    Log.i(TAG, "Radio was started to handle a web link.")
                     stationList.addAll(CollectionHelper.createStationsFromUrl(intentUri.toString()))
                 }
                 // CASE: intent is a local file
                 else if (scheme.startsWith("content")) {
-                    Log.i(TAG, "Transistor was started to handle a local audio playlist.")
+                    Log.i(TAG, "Radio was started to handle a local audio playlist.")
                     stationList.addAll(CollectionHelper.createStationListFromContentUri(activity as Context, intentUri))
                 }
                 withContext(Main) {
@@ -612,17 +624,30 @@ class PlayerFragment : Fragment(),
 
 
     /* Handles START_PLAYER_SERVICE request from App Shortcut */
-    private fun handleStartPlayer() {
+    private fun handleStartPlayer(): Boolean {
+        if (controller == null || collection.stations.isEmpty()) {
+            return false
+        }
         val intent: Intent = (activity as Activity).intent
         if (intent.hasExtra(Keys.EXTRA_START_LAST_PLAYED_STATION)) {
-            controller?.play(activity as Context, CollectionHelper.getStation(collection, playerState.stationUuid))
+            val station = CollectionHelper.getStation(collection, playerState.stationUuid)
+            if (station.isValid()) {
+                controller?.play(activity as Context, station)
+                return true
+            }
         } else if (intent.hasExtra(Keys.EXTRA_STATION_UUID)) {
             val uuid: String = intent.getStringExtra(Keys.EXTRA_STATION_UUID) ?: String()
-            controller?.play(activity as Context, CollectionHelper.getStation(collection, uuid))
+            val station = CollectionHelper.getStation(collection, uuid)
+            if (station.isValid()) {
+                controller?.play(activity as Context, station)
+                return true
+            }
         } else if (intent.hasExtra(Keys.EXTRA_STREAM_URI)) {
             val streamUri: String = intent.getStringExtra(Keys.EXTRA_STREAM_URI) ?: String()
             controller?.playStreamDirectly(streamUri)
+            return true
         }
+        return false
     }
 
 
@@ -640,9 +665,9 @@ class PlayerFragment : Fragment(),
             collection = it
             // updates current station in player views
             playerState = PreferencesHelper.loadPlayerState()
-//            // get station
+            // get station
             val station: Station = CollectionHelper.getStation(collection, playerState.stationUuid)
-//            // update player views
+            // update player views
             layout.updatePlayerViews(activity as Context, station, playerState.isPlaying)
             // handle start intent
             handleStartIntent()

app/src/main/java/com/michatec/radio/PlayerService.kt

@@ -241,11 +241,6 @@ class PlayerService : MediaLibraryService() {
                 async(Dispatchers.Default) { FileHelper.readCollectionSuspended(context) }
             // wait for result and update collection
             collection = deferred.await()
-//            // special case: trigger metadata view update for stations that have no metadata
-//            if (player.isPlaying && station.name == getCurrentMetadata()) {
-//                station = CollectionHelper.getStation(collection, station.uuid)
-//                updateMetadata(null)
-//            }
         }
     }
 
@@ -429,7 +424,6 @@ class PlayerService : MediaLibraryService() {
                 currentMediaId,
                 isPlaying
             )
-            //updatePlayerState(station, playbackState)
 
             if (isPlaying) {
                 // playback is active
@@ -506,10 +500,6 @@ class PlayerService : MediaLibraryService() {
             // try to reconnect every 5 seconds - up to 20 times
             if (loadErrorInfo.errorCount <= Keys.DEFAULT_MAX_RECONNECTION_COUNT && loadErrorInfo.exception is HttpDataSource.HttpDataSourceException) {
                 return Keys.RECONNECTION_WAIT_INTERVAL
-//            } else {
-//                CoroutineScope(Main).launch {
-//                    player.stop()
-//                }
             }
             return C.TIME_UNSET
         }

app/src/main/java/com/michatec/radio/SettingsFragment.kt

@@ -245,7 +245,7 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
         val preferenceCategoryMaintenance = PreferenceCategory(activity as Context)
         preferenceCategoryMaintenance.title = getString(R.string.pref_maintenance_title)
         preferenceCategoryMaintenance.contains(preferenceUpdateStationImages)
-//        preferenceCategoryMaintenance.contains(preferenceUpdateCollection)
+        preferenceCategoryMaintenance.contains(preferenceUpdateCollection)
 
         val preferenceCategoryImportExport = PreferenceCategory(activity as Context)
         preferenceCategoryImportExport.title = getString(R.string.pref_backup_import_export_title)
@@ -549,7 +549,6 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
             requestRestoreCollectionLauncher.launch(intent)
         } catch (exception: Exception) {
             Log.e(TAG, "Unable to open file picker for ZIP.\n$exception")
-            // Toast.makeText(activity as Context, R.string.toast_message_install_file_helper, Toast.LENGTH_LONG).show()
         }
     }
 }

app/src/main/java/com/michatec/radio/collection/CollectionAdapter.kt

@@ -22,7 +22,6 @@ import androidx.core.view.isGone
 import androidx.core.view.isVisible
 import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.ViewModelProvider
-import androidx.media3.common.text.TextAnnotation
 import androidx.navigation.findNavController
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.RecyclerView
@@ -190,7 +189,11 @@ class CollectionAdapter(
 
                 // highlight if reordering
                 if (reorderStationUuid == station.uuid) {
-                    stationViewHolder.stationCardView.setStrokeColor(ColorStateList.valueOf(ContextCompat.getColor(context, R.color.cardview_reordering)))
+                    stationViewHolder.stationCardView.setStrokeColor(
+                        ColorStateList.valueOf(
+                            ContextCompat.getColor(context, R.color.cardview_reordering)
+                        )
+                    )
                 }
 
                 // show / hide edit views
@@ -369,12 +372,16 @@ class CollectionAdapter(
         when (station.starred) {
             true -> {
                 if (station.imageColor != -1) {
-                    // stationViewHolder.stationCardView.setCardBackgroundColor(station.imageColor)
                     stationViewHolder.stationStarredView.setColorFilter(station.imageColor)
+                } else {
+                    stationViewHolder.stationStarredView.clearColorFilter()
                 }
                 stationViewHolder.stationStarredView.isVisible = true
             }
-            false -> stationViewHolder.stationStarredView.isGone = true
+            false -> {
+                stationViewHolder.stationStarredView.clearColorFilter()
+                stationViewHolder.stationStarredView.isGone = true
+            }
         }
     }
 

app/src/main/java/com/michatec/radio/helpers/ShortcutHelper.kt

@@ -21,7 +21,6 @@ object ShortcutHelper {
 
     /* Places shortcut on Home screen */
     fun placeShortcut(context: Context, station: Station) {
-        // credit: https://medium.com/@BladeCoder/using-support-library-26-0-0-you-can-do-bb75911e01e8
         if (ShortcutManagerCompat.isRequestPinShortcutSupported(context)) {
             val shortcut: ShortcutInfoCompat = ShortcutInfoCompat.Builder(context, station.name)
                 .setShortLabel(station.name)

app/src/main/java/com/michatec/radio/ui/LayoutHolder.kt

@@ -128,7 +128,6 @@ data class LayoutHolder(var rootView: View) {
         if (!isPlaying) {
             metadataView?.text = station.name
             sheetMetadataHistoryView?.text = station.name
-//            sheetMetadataHistoryView.isSelected = true
         }
 
         // update name
@@ -289,11 +288,9 @@ data class LayoutHolder(var rootView: View) {
             val animatedVectorDrawable = playButtonView.drawable as? AnimatedVectorDrawable
             animatedVectorDrawable?.start()
             sheetSleepTimerStartButtonView?.isVisible = true
-            // bufferingIndicator.isVisible = false
         } else {
             playButtonView.setImageResource(R.drawable.ic_player_play_symbol_42dp)
             sheetSleepTimerStartButtonView?.isVisible = false
-            // bufferingIndicator.isVisible = isBuffering
         }
     }