utilize downloaded files within detail activities

app/src/main/java/com/dkanada/gramophone/App.java

@@ -61,6 +61,7 @@ public class App extends Application {
                 .addMigrations(JellyDatabase.Migration2)
                 .addMigrations(JellyDatabase.Migration3)
                 .addMigrations(JellyDatabase.Migration4)
+                .addMigrations(JellyDatabase.Migration5)
                 .build();
     }
 

app/src/main/java/com/dkanada/gramophone/database/Cache.java

@@ -0,0 +1,29 @@
+package com.dkanada.gramophone.database;
+
+import androidx.annotation.NonNull;
+import androidx.room.ColumnInfo;
+import androidx.room.Entity;
+import androidx.room.PrimaryKey;
+
+import com.dkanada.gramophone.model.Song;
+
+import java.util.UUID;
+
+@Entity(tableName = "cache")
+public class Cache {
+    @NonNull
+    @PrimaryKey
+    public String id;
+
+    @ColumnInfo(defaultValue = "1")
+    public Boolean cache;
+
+    public Cache() {
+        this.id = UUID.randomUUID().toString();
+    }
+
+    public Cache(Song song) {
+        this.id = song.id;
+        this.cache = true;
+    }
+}

app/src/main/java/com/dkanada/gramophone/database/CacheDao.java

@@ -0,0 +1,19 @@
+package com.dkanada.gramophone.database;
+
+import androidx.room.Dao;
+import androidx.room.Insert;
+import androidx.room.OnConflictStrategy;
+import androidx.room.Query;
+
+import com.dkanada.gramophone.model.Song;
+
+import java.util.List;
+
+@Dao
+public interface CacheDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    void insertCache(Cache cache);
+
+    @Query("SELECT * FROM songs LEFT JOIN cache USING(id) WHERE songs.id IN (:ids)")
+    List<Song> getSongs(List<String> ids);
+}

app/src/main/java/com/dkanada/gramophone/database/JellyDatabase.java

@@ -10,14 +10,16 @@ import com.dkanada.gramophone.model.User;
 
 @androidx.room.Database(
         entities = {
+                Cache.class,
                 Song.class,
                 QueueSong.class,
                 User.class
         },
-        version = 4,
+        version = 5,
         exportSchema = false
 )
 public abstract class JellyDatabase extends RoomDatabase {
+    public abstract CacheDao cacheDao();
     public abstract SongDao songDao();
     public abstract QueueSongDao queueSongDao();
     public abstract UserDao userDao();
@@ -52,4 +54,12 @@ public abstract class JellyDatabase extends RoomDatabase {
                     + "name TEXT, server TEXT, token TEXT)");
         }
     };
+
+    public static final Migration Migration5 = new Migration(4, 5) {
+        @Override
+        public void migrate(@NonNull SupportSQLiteDatabase database) {
+            database.execSQL("CREATE TABLE cache (id TEXT NOT NULL PRIMARY KEY,"
+                    + "cache INTEGER NOT NULL)");
+        }
+    };
 }

app/src/main/java/com/dkanada/gramophone/database/QueueSongDao.java

@@ -4,6 +4,7 @@ import androidx.room.Dao;
 import androidx.room.Insert;
 import androidx.room.OnConflictStrategy;
 import androidx.room.Query;
+import androidx.room.Transaction;
 
 import com.dkanada.gramophone.App;
 import com.dkanada.gramophone.model.Song;
@@ -22,6 +23,7 @@ public abstract class QueueSongDao {
     @Query("SELECT * from queueSongs WHERE queue = :queue ORDER BY `index`")
     public abstract List<QueueSong> getQueueSongs(int queue);
 
+    @Transaction
     public List<Song> getQueue(int queue) {
         List<QueueSong> queueSongs = getQueueSongs(queue);
         List<Song> songs = new ArrayList<>();
@@ -34,6 +36,7 @@ public abstract class QueueSongDao {
         return songs;
     }
 
+    @Transaction
     public void setQueue(List<Song> songs, int queue) {
         List<QueueSong> queueSongs = new ArrayList<>();
         for (int i = 0; i < songs.size(); i++) {

app/src/main/java/com/dkanada/gramophone/model/Song.java

@@ -48,6 +48,8 @@ public class Song implements Parcelable {
     public int bitDepth;
     public int channels;
 
+    public boolean cache;
+
     public Song() {
         this.id = UUID.randomUUID().toString();
     }

app/src/main/java/com/dkanada/gramophone/service/DownloadService.java

@@ -2,13 +2,13 @@ package com.dkanada.gramophone.service;
 
 import android.app.Service;
 import android.content.Intent;
-import android.os.Environment;
 import android.os.Handler;
 import android.os.IBinder;
 import android.os.Looper;
 
 import com.dkanada.gramophone.App;
 import com.dkanada.gramophone.BuildConfig;
+import com.dkanada.gramophone.database.Cache;
 import com.dkanada.gramophone.model.Song;
 import com.dkanada.gramophone.util.MusicUtil;
 
@@ -50,11 +50,7 @@ public class DownloadService extends Service {
             try {
                 URL url = new URL(MusicUtil.getDownloadUri(song));
                 URLConnection connection = url.openConnection();
-
-                File root = new File(App.getInstance().getCacheDir(), "music");
-                String path = song.artistName + "/" + song.albumName + "/";
-                String name = song.discNumber + "." + song.trackNumber + " - " + song.title + "." + song.container;
-                File audio = new File(root, path + name);
+                File audio = new File(MusicUtil.getFileUri(song));
 
                 audio.getParentFile().mkdirs();
                 audio.createNewFile();
@@ -64,7 +60,7 @@ public class DownloadService extends Service {
 
                 connection.connect();
 
-                byte[] data = new byte[4096];
+                byte[] data = new byte[262144];
                 int count;
 
                 while ((count = input.read(data)) != -1) {
@@ -73,6 +69,8 @@ public class DownloadService extends Service {
 
                 input.close();
                 output.close();
+
+                App.getDatabase().cacheDao().insertCache(new Cache(song));
             } catch (Exception e) {
                 e.printStackTrace();
             }

app/src/main/java/com/dkanada/gramophone/service/playback/LocalPlayer.java

@@ -96,15 +96,14 @@ public class LocalPlayer implements Playback {
 
     @Override
     public void setDataSource(Song song) {
-        String uri = MusicUtil.getTranscodeUri(song);
         MediaItem mediaItem = exoPlayer.getCurrentMediaItem();
 
-        if (mediaItem != null && mediaItem.playbackProperties.uri.toString().equals(uri)) {
+        if (mediaItem != null && mediaItem.mediaId.equals(song.id)) {
             return;
         }
 
         exoPlayer.clearMediaItems();
-        appendDataSource(MusicUtil.getTranscodeUri(song));
+        appendDataSource(song);
         exoPlayer.seekTo(0, 0);
     }
 
@@ -114,12 +113,19 @@ public class LocalPlayer implements Playback {
             exoPlayer.removeMediaItem(1);
         }
 
-        appendDataSource(MusicUtil.getTranscodeUri(song));
+        appendDataSource(song);
     }
 
-    private void appendDataSource(String path) {
-        Uri uri = Uri.parse(path);
+    private void appendDataSource(Song song) {
+        File audio = new File(MusicUtil.getFileUri(song));
+        Uri uri = Uri.fromFile(audio);
+
+        if (!song.cache || !audio.exists()) {
+            uri = Uri.parse(MusicUtil.getTranscodeUri(song));
+        }
+
         MediaItem mediaItem = MediaItem.fromUri(uri);
+        mediaItem = mediaItem.buildUpon().setMediaId(song.id).build();
 
         exoPlayer.addMediaItem(mediaItem);
     }

app/src/main/java/com/dkanada/gramophone/service/playback/UnknownMediaSourceFactory.kt

@@ -42,6 +42,10 @@ class UnknownMediaSourceFactory(dataSourceFactory: DataSource.Factory) : MediaSo
     }
 
     override fun createMediaSource(mediaItem: MediaItem): MediaSource {
+        if (mediaItem.playbackProperties?.uri.toString().contains("file://")) {
+            return progressiveMediaSource.createMediaSource(mediaItem)
+        }
+
         val type: String? = runBlocking {
             httpGet(mediaItem.playbackProperties!!.uri.toString())
         }

app/src/main/java/com/dkanada/gramophone/util/MusicUtil.java

@@ -21,6 +21,7 @@ import org.jellyfin.apiclient.interaction.ApiClient;
 import org.jellyfin.apiclient.interaction.Response;
 import org.jellyfin.apiclient.model.dto.UserItemDataDto;
 
+import java.io.File;
 import java.util.List;
 import java.util.Locale;
 
@@ -82,6 +83,15 @@ public class MusicUtil {
         return builder.toString();
     }
 
+    public static String getFileUri(Song song) {
+        File root = new File(App.getInstance().getCacheDir(), "music");
+
+        String path = "/" + song.artistName + "/" + song.albumName + "/";
+        String name = song.discNumber + "." + song.trackNumber + " - " + song.title + "." + song.container;
+
+        return root + path + name;
+    }
+
     @NonNull
     public static Intent createShareSongFileIntent(@NonNull final Song song, Context context) {
         try {

app/src/main/java/com/dkanada/gramophone/util/QueryUtil.java

@@ -170,11 +170,14 @@ public class QueryUtil {
             @Override
             public void onResponse(ItemsResult result) {
                 List<Song> songs = new ArrayList<>();
+                List<String> ids = new ArrayList<>();
                 for (BaseItemDto itemDto : result.getItems()) {
                     songs.add(new Song(itemDto));
+                    ids.add(itemDto.getId());
                 }
 
-                callback.onLoadMedia(songs);
+                App.getDatabase().songDao().insertSongs(songs);
+                callback.onLoadMedia(App.getDatabase().cacheDao().getSongs(ids));
             }
 
             @Override