Added artist's random-song playing

app/src/main/java/com/cappielloantonio/play/database/dao/SongDao.java

@@ -42,6 +42,9 @@ public interface SongDao {
     @Query("SELECT * FROM song WHERE artistId = :artistID ORDER BY play_count DESC")
     LiveData<List<Song>> getArtistTopSongs(String artistID);
 
+    @Query("SELECT * FROM song WHERE artistId = :artistID ORDER BY RANDOM() LIMIT :number")
+    List<Song> getArtistRandomSongs(String artistID, int number);
+
     @Query("SELECT * FROM song WHERE albumId = :albumID ORDER BY trackNumber ASC")
     LiveData<List<Song>> getLiveAlbumSong(String albumID);
 

app/src/main/java/com/cappielloantonio/play/repository/SongRepository.java

@@ -80,6 +80,23 @@ public class SongRepository {
         return listLiveSampleArtistTopSongs;
     }
 
+    public List<Song> getArtistListLiveRandomSong(String artistID) {
+        List<Song> songs = new ArrayList<>();
+
+        GetRandomSongsByArtistIDThreadSafe randomArtistSongThread = new GetRandomSongsByArtistIDThreadSafe(songDao, artistID, 100);
+        Thread thread = new Thread(randomArtistSongThread);
+        thread.start();
+
+        try {
+            thread.join();
+            songs = randomArtistSongThread.getSongs();
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+
+        return songs;
+    }
+
     public LiveData<List<Song>> getAlbumListLiveSong(String albumID) {
         listLiveAlbumSongs = songDao.getLiveAlbumSong(albumID);
         return listLiveAlbumSongs;
@@ -310,6 +327,28 @@ public class SongRepository {
         }
     }
 
+    private static class GetRandomSongsByArtistIDThreadSafe implements Runnable {
+        private SongDao songDao;
+        private String artistID;
+        private int limit;
+        private List<Song> songs = new ArrayList<>();
+
+        public GetRandomSongsByArtistIDThreadSafe(SongDao songDao, String artistID, int limit) {
+            this.songDao = songDao;
+            this.artistID = artistID;
+            this.limit = limit;
+        }
+
+        @Override
+        public void run() {
+            songs = songDao.getArtistRandomSongs(artistID, limit);
+        }
+
+        public List<Song> getSongs() {
+            return songs;
+        }
+    }
+
     private static class ExistThreadSafe implements Runnable {
         private SongDao songDao;
         private Song song;

app/src/main/java/com/cappielloantonio/play/ui/fragment/bottomsheetdialog/ArtistBottomSheetDialog.java

@@ -1,6 +1,7 @@
 package com.cappielloantonio.play.ui.fragment.bottomsheetdialog;
 
 import android.os.Bundle;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -11,16 +12,25 @@ import android.widget.Toast;
 import androidx.annotation.Nullable;
 import androidx.lifecycle.ViewModelProvider;
 
+import com.cappielloantonio.play.App;
 import com.cappielloantonio.play.R;
 import com.cappielloantonio.play.glide.CustomGlideRequest;
+import com.cappielloantonio.play.helper.MusicPlayerRemote;
 import com.cappielloantonio.play.model.Artist;
+import com.cappielloantonio.play.model.Song;
+import com.cappielloantonio.play.repository.QueueRepository;
+import com.cappielloantonio.play.repository.SongRepository;
+import com.cappielloantonio.play.ui.activities.MainActivity;
 import com.cappielloantonio.play.viewmodel.ArtistBottomSheetViewModel;
 import com.google.android.material.bottomsheet.BottomSheetDialogFragment;
 
+import java.util.List;
+
 public class ArtistBottomSheetDialog extends BottomSheetDialogFragment implements View.OnClickListener {
     private static final String TAG = "AlbumBottomSheetDialog";
 
     private ArtistBottomSheetViewModel artistBottomSheetViewModel;
+    private SongRepository songRepository;
     private Artist artist;
 
     private ImageView coverArtist;
@@ -39,6 +49,8 @@ public class ArtistBottomSheetDialog extends BottomSheetDialogFragment implement
         artistBottomSheetViewModel = new ViewModelProvider(requireActivity()).get(ArtistBottomSheetViewModel.class);
         artistBottomSheetViewModel.setArtist(artist);
 
+        songRepository = new SongRepository(App.getInstance());
+
         init(view);
 
         return view;
@@ -63,8 +75,17 @@ public class ArtistBottomSheetDialog extends BottomSheetDialogFragment implement
 
         playRandom = view.findViewById(R.id.play_random_text_view);
         playRandom.setOnClickListener(v -> {
-            Toast.makeText(requireContext(), "Play random", Toast.LENGTH_SHORT).show();
+            List<Song> songs = songRepository.getArtistListLiveRandomSong(artist.getId());
-            dismissBottomSheet();
+
+            if(songs.size() > 0) {
+                QueueRepository queueRepository = new QueueRepository(App.getInstance());
+                queueRepository.insertAllAndStartNew(songs);
+
+                MusicPlayerRemote.openQueue(songs, 0, true);
+                ((MainActivity) requireActivity()).isBottomSheetInPeek(true);
+                dismissBottomSheet();
+            }
+            else Toast.makeText(requireContext(), "Error retrieving artist's songs", Toast.LENGTH_SHORT).show();
         });
     }