loads music folder list

Signed-off-by: James Wells <james@jameswells.net>

ultrasonic/src/main/java/org/moire/ultrasonic/service/CachedMusicService.java

@@ -76,7 +76,7 @@ public class CachedMusicService implements MusicService
 	private final TimeLimitedCache<List<Genre>> cachedGenres = new TimeLimitedCache<>(10 * 3600, TimeUnit.SECONDS);
 
 	private String restUrl;
-	private String musicFolderId;
+	private String cachedMusicFolderId;
 
 	public CachedMusicService(MusicService musicService)
 	{
@@ -372,7 +372,7 @@ public class CachedMusicService implements MusicService
 	{
 		String newUrl = activeServerProvider.getValue().getRestUrl(null);
 		String newFolderId = activeServerProvider.getValue().getActiveServer().getMusicFolderId();
-		if (!Util.equals(newUrl, restUrl) || !Util.equals(musicFolderId,newFolderId))
+		if (!Util.equals(newUrl, restUrl) || !Util.equals(cachedMusicFolderId,newFolderId))
 		{
 			cachedMusicFolders.clear();
 			cachedMusicDirectories.clear();
@@ -384,7 +384,7 @@ public class CachedMusicService implements MusicService
 			cachedArtist.clear();
 			cachedUserInfo.clear();
 			restUrl = newUrl;
-			musicFolderId = newFolderId;
+			cachedMusicFolderId = newFolderId;
 		}
 	}
 

ultrasonic/src/main/kotlin/org/moire/ultrasonic/fragment/ArtistRowAdapter.kt

@@ -43,7 +43,6 @@ import org.moire.ultrasonic.view.SelectMusicFolderView
  */
 class ArtistRowAdapter(
     private var artistList: List<Artist>,
-    private var folderName: String,
     private var selectFolderHeader: SelectMusicFolderView?,
     val onArtistClick: (Artist) -> Unit,
     val onContextMenuClick: (MenuItem, Artist) -> Boolean,
@@ -58,14 +57,6 @@ class ArtistRowAdapter(
         notifyDataSetChanged()
     }
 
-    /**
-     * Sets the name of the folder to be displayed n the Header (first) row
-     */
-    fun setFolderName(name: String) {
-        folderName = name
-        notifyDataSetChanged()
-    }
-
     /**
      * Holds the view properties of an Artist row
      */

ultrasonic/src/main/kotlin/org/moire/ultrasonic/fragment/SelectAlbumFragment.kt

@@ -1,6 +1,8 @@
 package org.moire.ultrasonic.fragment
 
 import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
 import android.view.ContextMenu
 import android.view.ContextMenu.ContextMenuInfo
 import android.view.LayoutInflater
@@ -16,6 +18,9 @@ import android.widget.ImageView
 import android.widget.ListView
 import android.widget.TextView
 import androidx.fragment.app.Fragment
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.Observer
+import androidx.lifecycle.viewModelScope
 import androidx.navigation.Navigation
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout.OnRefreshListener
@@ -23,6 +28,9 @@ import java.security.SecureRandom
 import java.util.Collections
 import java.util.LinkedList
 import java.util.Random
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import org.koin.android.ext.android.inject
 import org.koin.android.viewmodel.ext.android.viewModel
 import org.moire.ultrasonic.R
@@ -30,8 +38,10 @@ import org.moire.ultrasonic.api.subsonic.models.AlbumListType
 import org.moire.ultrasonic.data.ActiveServerProvider
 import org.moire.ultrasonic.data.ActiveServerProvider.Companion.isOffline
 import org.moire.ultrasonic.domain.MusicDirectory
+import org.moire.ultrasonic.domain.MusicFolder
 import org.moire.ultrasonic.fragment.FragmentTitle.Companion.getTitle
 import org.moire.ultrasonic.fragment.FragmentTitle.Companion.setTitle
+import org.moire.ultrasonic.service.CommunicationErrorHandler
 import org.moire.ultrasonic.service.MediaPlayerController
 import org.moire.ultrasonic.service.MusicService
 import org.moire.ultrasonic.service.MusicServiceFactory
@@ -81,6 +91,7 @@ class SelectAlbumFragment : Fragment() {
     private var showHeader = true
     private var showSelectFolderHeader = false
     private val random: Random = SecureRandom()
+    private val musicFolders: MutableLiveData<List<MusicFolder>> = MutableLiveData()
 
     private val mediaPlayerController: MediaPlayerController by inject()
     private val videoPlayer: VideoPlayer by inject()
@@ -128,11 +139,7 @@ class SelectAlbumFragment : Fragment() {
 
         selectFolderHeader = SelectMusicFolderView(
             requireContext(), albumListView!!,
-            MusicServiceFactory.getMusicService(requireContext()).getMusicFolders(
-                false, requireContext()
-            ),
-            activeServerProvider.getActiveServer().musicFolderId,
-            { _, selectedFolderId ->
+            { selectedFolderId ->
                 if (!ActiveServerProvider.isOffline(context)) {
                     val currentSetting = activeServerProvider.getActiveServer()
                     currentSetting.musicFolderId = selectedFolderId
@@ -141,6 +148,17 @@ class SelectAlbumFragment : Fragment() {
                 this.updateDisplay(true)
             }
         )
+        musicFolders.observe(
+            viewLifecycleOwner,
+            Observer { changedFolders ->
+                if (changedFolders != null) {
+                    selectFolderHeader!!.setData(
+                        activeServerProvider.getActiveServer().musicFolderId,
+                        changedFolders
+                    )
+                }
+            }
+        )
 
         albumListView!!.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE)
         albumListView!!.setOnItemClickListener(
@@ -294,6 +312,8 @@ class SelectAlbumFragment : Fragment() {
             Constants.INTENT_EXTRA_NAME_ALBUM_LIST_OFFSET, 0
         )
 
+        backgroundLoadMusicFolders(refresh)
+
         if (playlistId != null) {
             getPlaylist(playlistId, playlistName)
         } else if (podcastChannelId != null) {
@@ -323,6 +343,29 @@ class SelectAlbumFragment : Fragment() {
         }
     }
 
+    private fun backgroundLoadMusicFolders(refresh: Boolean) {
+        serverSettingsModel.viewModelScope.launch {
+            refreshAlbumListView!!.isRefreshing = true
+            loadMusicFolders(refresh)
+            refreshAlbumListView!!.isRefreshing = false
+        }
+    }
+
+    private suspend fun loadMusicFolders(refresh: Boolean) {
+        withContext(Dispatchers.IO) {
+            if (!isOffline(context)) {
+                val musicService = MusicServiceFactory.getMusicService(requireContext())
+                try {
+                    musicFolders.postValue(musicService.getMusicFolders(refresh, context))
+                } catch (exception: Exception) {
+                    Handler(Looper.getMainLooper()).post {
+                        CommunicationErrorHandler.handleError(exception, requireContext())
+                    }
+                }
+            }
+        }
+    }
+
     override fun onCreateContextMenu(menu: ContextMenu, view: View, menuInfo: ContextMenuInfo?) {
         super.onCreateContextMenu(menu, view, menuInfo)
         val info = menuInfo as AdapterContextMenuInfo?

ultrasonic/src/main/kotlin/org/moire/ultrasonic/fragment/SelectArtistFragment.kt

@@ -16,9 +16,7 @@ import org.koin.android.viewmodel.ext.android.viewModel
 import org.moire.ultrasonic.R
 import org.moire.ultrasonic.data.ActiveServerProvider
 import org.moire.ultrasonic.domain.Artist
-import org.moire.ultrasonic.domain.MusicFolder
 import org.moire.ultrasonic.fragment.FragmentTitle.Companion.setTitle
-import org.moire.ultrasonic.service.MusicServiceFactory
 import org.moire.ultrasonic.subsonic.DownloadHandler
 import org.moire.ultrasonic.subsonic.ImageLoaderProvider
 import org.moire.ultrasonic.util.Constants
@@ -37,7 +35,6 @@ class SelectArtistFragment : Fragment() {
 
     private var refreshArtistListView: SwipeRefreshLayout? = null
     private var artistListView: RecyclerView? = null
-    private var musicFolders: List<MusicFolder>? = null
     private lateinit var viewManager: RecyclerView.LayoutManager
     private lateinit var viewAdapter: ArtistRowAdapter
     private var selectFolderHeader: SelectMusicFolderView? = null
@@ -67,17 +64,13 @@ class SelectArtistFragment : Fragment() {
         ) {
             selectFolderHeader = SelectMusicFolderView(
                 requireContext(), view as ViewGroup,
-                MusicServiceFactory.getMusicService(requireContext()).getMusicFolders(
-                    false, requireContext()
-                ),
-                activeServerProvider.getActiveServer().musicFolderId,
-                { musicFolderName, selectedFolderId ->
+                { selectedFolderId ->
                     if (!ActiveServerProvider.isOffline(context)) {
                         val currentSetting = activeServerProvider.getActiveServer()
                         currentSetting.musicFolderId = selectedFolderId
                         serverSettingsModel.updateItem(currentSetting)
                     }
-                    viewAdapter.setFolderName(musicFolderName)
+                    viewAdapter.notifyDataSetChanged()
                     artistListModel.refresh(refreshArtistListView!!)
                 }
             )
@@ -96,8 +89,6 @@ class SelectArtistFragment : Fragment() {
             setTitle(this, title)
         }
 
-        musicFolders = null
-
         val refresh = arguments?.getBoolean(Constants.INTENT_EXTRA_NAME_REFRESH) ?: false
 
         artistListModel.getMusicFolders()
@@ -105,8 +96,11 @@ class SelectArtistFragment : Fragment() {
                 viewLifecycleOwner,
                 Observer { changedFolders ->
                     if (changedFolders != null) {
-                        musicFolders = changedFolders
-                        viewAdapter.setFolderName(getMusicFolderName(changedFolders))
+                        viewAdapter.notifyDataSetChanged()
+                        selectFolderHeader!!.setData(
+                            activeServerProvider.getActiveServer().musicFolderId,
+                            changedFolders
+                        )
                     }
                 }
             )
@@ -119,7 +113,6 @@ class SelectArtistFragment : Fragment() {
         viewManager = LinearLayoutManager(this.context)
         viewAdapter = ArtistRowAdapter(
             artists.value ?: listOf(),
-            getText(R.string.select_artist_all_folders).toString(),
             selectFolderHeader,
             { artist -> onItemClick(artist) },
             { menuItem, artist -> onArtistMenuItemSelected(menuItem, artist) },
@@ -134,18 +127,6 @@ class SelectArtistFragment : Fragment() {
         super.onViewCreated(view, savedInstanceState)
     }
 
-    private fun getMusicFolderName(musicFolders: List<MusicFolder>): String {
-        val musicFolderId = activeServerProvider.getActiveServer().musicFolderId
-        if (musicFolderId != null && musicFolderId != "") {
-            for ((id, name) in musicFolders) {
-                if (id == musicFolderId) {
-                    return name
-                }
-            }
-        }
-        return getText(R.string.select_artist_all_folders).toString()
-    }
-
     private fun onItemClick(artist: Artist) {
         val bundle = Bundle()
         bundle.putString(Constants.INTENT_EXTRA_NAME_ID, artist.id)

ultrasonic/src/main/kotlin/org/moire/ultrasonic/service/RESTMusicService.kt

@@ -114,7 +114,9 @@ open class RESTMusicService(
         refresh: Boolean,
         context: Context
     ): Indexes {
-        val cachedIndexes = fileStorage.load(INDEXES_STORAGE_NAME, getIndexesSerializer())
+        val indexName = INDEXES_STORAGE_NAME + (musicFolderId ?: "")
+
+        val cachedIndexes = fileStorage.load(indexName, getIndexesSerializer())
         if (cachedIndexes != null && !refresh) return cachedIndexes
 
         val response = responseChecker.callWithResponseCheck { api ->
@@ -122,7 +124,7 @@ open class RESTMusicService(
         }
 
         val indexes = response.body()!!.indexes.toDomainEntity()
-        fileStorage.store(INDEXES_STORAGE_NAME, indexes, getIndexesSerializer())
+        fileStorage.store(indexName, indexes, getIndexesSerializer())
         return indexes
     }
 
@@ -938,6 +940,7 @@ open class RESTMusicService(
     companion object {
         private const val MUSIC_FOLDER_STORAGE_NAME = "music_folder"
         private const val INDEXES_STORAGE_NAME = "indexes"
+        private const val INDEXES_FOLDER_STORAGE_NAME = "indexes_folder"
         private const val ARTISTS_STORAGE_NAME = "artists"
     }
 }

ultrasonic/src/main/kotlin/org/moire/ultrasonic/view/SelectMusicFolderView.kt

@@ -19,19 +19,26 @@ import org.moire.ultrasonic.domain.MusicFolder
 class SelectMusicFolderView(
     private val context: Context,
     root: ViewGroup,
-    private val musicFolders: List<MusicFolder>,
-    private var selectedFolderId: String?,
-    private val onUpdate: (String, String?) -> Unit
+    private val onUpdate: (String?) -> Unit
 ) : RecyclerView.ViewHolder(
     LayoutInflater.from(context).inflate(
         R.layout.select_folder_header, root, false
     )
 ) {
+    private var musicFolders: List<MusicFolder> = mutableListOf<MusicFolder>()
+    private var selectedFolderId: String? = null
     private val folderName: TextView = itemView.findViewById(R.id.select_folder_name)
     private val layout: LinearLayout = itemView.findViewById(R.id.select_folder_header)
     private val MENU_GROUP_MUSIC_FOLDER = 10
 
     init {
+        folderName.text = context.getString(R.string.select_artist_all_folders)
+        layout.setOnClickListener { onFolderClick() }
+    }
+
+    fun setData(selectedId: String?, folders: List<MusicFolder>) {
+        selectedFolderId = selectedId
+        musicFolders = folders
         if (selectedFolderId != null) {
             for ((id, name) in musicFolders) {
                 if (id == selectedFolderId) {
@@ -42,7 +49,6 @@ class SelectMusicFolderView(
         } else {
             folderName.text = context.getString(R.string.select_artist_all_folders)
         }
-        layout.setOnClickListener { onFolderClick() }
     }
 
     private fun onFolderClick() {
@@ -76,7 +82,7 @@ class SelectMusicFolderView(
 
         menuItem.isChecked = true
         folderName.text = musicFolderName
-        onUpdate(musicFolderName, selectedFolderId)
+        onUpdate(selectedFolderId)
 
         return true
     }