Add save playlist 💾

app/src/main/java/code/name/monkey/retromusic/db/SongExtension.kt

@@ -86,4 +86,10 @@ fun Song.toPlayCount(): PlayCountEntity {
         System.currentTimeMillis(),
         1
     )
-}
+}
+
+fun List<Song>.toSongsEntity(playlistEntity: PlaylistEntity): List<SongEntity> {
+    return map {
+        it.toSongEntity(playlistEntity.playListId)
+    }
+}

app/src/main/java/code/name/monkey/retromusic/dialogs/AddToPlaylistDialog.kt

@@ -3,29 +3,30 @@ package code.name.monkey.retromusic.dialogs
 import android.app.Dialog
 import android.os.Bundle
 import androidx.core.os.bundleOf
+import androidx.fragment.app.DialogFragment
 import androidx.lifecycle.lifecycleScope
 import code.name.monkey.retromusic.EXTRA_PLAYLISTS
 import code.name.monkey.retromusic.EXTRA_SONG
 import code.name.monkey.retromusic.R
 import code.name.monkey.retromusic.db.PlaylistEntity
 import code.name.monkey.retromusic.db.SongEntity
+import code.name.monkey.retromusic.db.toSongsEntity
 import code.name.monkey.retromusic.extensions.colorButtons
 import code.name.monkey.retromusic.extensions.extraNotNull
 import code.name.monkey.retromusic.extensions.materialDialog
 import code.name.monkey.retromusic.fragments.LibraryViewModel
 import code.name.monkey.retromusic.fragments.ReloadType.Playlists
 import code.name.monkey.retromusic.model.Song
-import com.google.android.material.bottomsheet.BottomSheetDialogFragment
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import org.koin.androidx.viewmodel.ext.android.sharedViewModel
 
-class AddToPlaylistDialog : BottomSheetDialogFragment() {
+class AddToPlaylistDialog : DialogFragment() {
     private val libraryViewModel by sharedViewModel<LibraryViewModel>()
 
     companion object {
         fun create(playlistEntities: List<PlaylistEntity>, song: Song): AddToPlaylistDialog {
-            val list = mutableListOf<Song>()
+            val list: MutableList<Song> = mutableListOf()
             list.add(song)
             return create(playlistEntities, list)
         }
@@ -41,12 +42,13 @@ class AddToPlaylistDialog : BottomSheetDialogFragment() {
     }
 
     override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
-        val playlistEntities = extraNotNull<List<PlaylistEntity>>(EXTRA_PLAYLISTS).value
+        val playlistEntities: List<PlaylistEntity> =
-        val songs = extraNotNull<List<Song>>(EXTRA_SONG).value
+            extraNotNull<List<PlaylistEntity>>(EXTRA_PLAYLISTS).value
-        val playlistNames = mutableListOf<String>()
+        val songs: List<Song> = extraNotNull<List<Song>>(EXTRA_SONG).value
+        val playlistNames: MutableList<String> = mutableListOf()
         playlistNames.add(requireContext().resources.getString(R.string.action_new_playlist))
-        for (p in playlistEntities) {
+        for (entity: PlaylistEntity in playlistEntities) {
-            playlistNames.add(p.playlistName)
+            playlistNames.add(entity.playlistName)
         }
         return materialDialog(R.string.add_playlist_title)
             .setItems(playlistNames.toTypedArray()) { _, which ->
@@ -55,7 +57,8 @@ class AddToPlaylistDialog : BottomSheetDialogFragment() {
                         .show(requireActivity().supportFragmentManager, "Dialog")
                 } else {
                     lifecycleScope.launch(Dispatchers.IO) {
-                        val songEntities = songs.toSongEntity(playlistEntities[which - 1])
+                        val songEntities: List<SongEntity> =
+                            songs.toSongsEntity(playlistEntities[which - 1])
                         libraryViewModel.insertSongs(songEntities)
                         libraryViewModel.forceReload(Playlists)
                     }
@@ -64,10 +67,4 @@ class AddToPlaylistDialog : BottomSheetDialogFragment() {
             }
             .create().colorButtons()
     }
-}
+}
-
-private fun List<Song>.toSongEntity(playlistEntity: PlaylistEntity): List<SongEntity> {
-    return map {
-        it.toSongEntity(playlistEntity.playListId)
-    }
-}

app/src/main/java/code/name/monkey/retromusic/dialogs/SavePlaylistDialog.kt

@@ -1,4 +1,55 @@
 package code.name.monkey.retromusic.dialogs
 
-class SavePlaylistDialog {
+import android.app.Dialog
+import android.os.Bundle
+import android.widget.Toast
+import androidx.core.os.bundleOf
+import androidx.fragment.app.DialogFragment
+import androidx.lifecycle.lifecycleScope
+import code.name.monkey.retromusic.App
+import code.name.monkey.retromusic.EXTRA_PLAYLIST
+import code.name.monkey.retromusic.R
+import code.name.monkey.retromusic.db.PlaylistWithSongs
+import code.name.monkey.retromusic.extensions.colorButtons
+import code.name.monkey.retromusic.extensions.extraNotNull
+import code.name.monkey.retromusic.extensions.materialDialog
+import code.name.monkey.retromusic.util.PlaylistsUtil
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+
+class SavePlaylistDialog : DialogFragment() {
+    companion object {
+        fun create(playlistWithSongs: PlaylistWithSongs): SavePlaylistDialog {
+            return SavePlaylistDialog().apply {
+                arguments = bundleOf(
+                    EXTRA_PLAYLIST to playlistWithSongs
+                )
+            }
+        }
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        lifecycleScope.launch(Dispatchers.IO) {
+            val playlistWithSongs: PlaylistWithSongs =
+                extraNotNull<PlaylistWithSongs>(EXTRA_PLAYLIST).value
+            val file = PlaylistsUtil.savePlaylistWithSongs(requireContext(), playlistWithSongs)
+            withContext(Dispatchers.Main) {
+                Toast.makeText(
+                    requireContext(),
+                    String.format(App.getContext().getString(R.string.saved_playlist_to), file),
+                    Toast.LENGTH_LONG
+                ).show()
+                dismiss()
+            }
+        }
+    }
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        return materialDialog(R.string.save_playlist_title)
+            .setView(R.layout.loading)
+            .create().colorButtons()
+    }
 }

app/src/main/java/code/name/monkey/retromusic/helper/M3UWriter.kt

@@ -13,7 +13,10 @@
  */
 package code.name.monkey.retromusic.helper
 
+import code.name.monkey.retromusic.db.PlaylistWithSongs
+import code.name.monkey.retromusic.db.toSongs
 import code.name.monkey.retromusic.model.Playlist
+import code.name.monkey.retromusic.model.Song
 import java.io.BufferedWriter
 import java.io.File
 import java.io.FileWriter
@@ -42,4 +45,25 @@ object M3UWriter : M3UConstants {
         }
         return file
     }
+
+    @JvmStatic
+    @Throws(IOException::class)
+    fun writeIO(dir: File, playlistWithSongs: PlaylistWithSongs): File {
+        if (!dir.exists()) dir.mkdirs()
+        val fileName = "${playlistWithSongs.playlistEntity.playlistName}.${M3UConstants.EXTENSION}"
+        val file = File(dir, fileName)
+        val songs: List<Song> = playlistWithSongs.songs.toSongs()
+        if (songs.isNotEmpty()) {
+            val bufferedWriter = BufferedWriter(FileWriter(file))
+            bufferedWriter.write(M3UConstants.HEADER)
+            songs.forEach {
+                bufferedWriter.newLine()
+                bufferedWriter.write(M3UConstants.ENTRY + it.duration + M3UConstants.DURATION_SEPARATOR + it.artistName + " - " + it.title)
+                bufferedWriter.newLine()
+                bufferedWriter.write(it.data)
+            }
+            bufferedWriter.close()
+        }
+        return file
+    }
 }

app/src/main/java/code/name/monkey/retromusic/helper/menu/PlaylistMenuHelper.kt

@@ -15,24 +15,17 @@
 package code.name.monkey.retromusic.helper.menu
 
 
-import android.content.Context
 import android.view.MenuItem
-import android.widget.Toast
 import androidx.fragment.app.FragmentActivity
-import code.name.monkey.retromusic.App
 import code.name.monkey.retromusic.R
 import code.name.monkey.retromusic.db.PlaylistWithSongs
 import code.name.monkey.retromusic.db.toSongs
 import code.name.monkey.retromusic.dialogs.AddToPlaylistDialog
 import code.name.monkey.retromusic.dialogs.DeletePlaylistDialog
 import code.name.monkey.retromusic.dialogs.RenamePlaylistDialog
+import code.name.monkey.retromusic.dialogs.SavePlaylistDialog
 import code.name.monkey.retromusic.helper.MusicPlayerRemote
-import code.name.monkey.retromusic.misc.WeakContextAsyncTask
-import code.name.monkey.retromusic.model.AbsCustomPlaylist
-import code.name.monkey.retromusic.model.Playlist
-import code.name.monkey.retromusic.model.Song
 import code.name.monkey.retromusic.repository.RealRepository
-import code.name.monkey.retromusic.util.PlaylistsUtil
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -81,42 +74,11 @@ object PlaylistMenuHelper : KoinComponent {
                 return true
             }
             R.id.action_save_playlist -> {
-                //SavePlaylistAsyncTask(activity).execute(playlistWithSongs.songs.toSongs())
+                SavePlaylistDialog.create(playlistWithSongs)
-                Toast.makeText(activity, "Coming soon", Toast.LENGTH_SHORT).show()
+                    .show(activity.supportFragmentManager, "SavePlaylist")
                 return true
             }
         }
         return false
     }
-
-    private fun getPlaylistSongs(
-        playlist: Playlist
-    ): List<Song> {
-        return if (playlist is AbsCustomPlaylist) {
-            playlist.songs()
-        } else {
-            playlist.getSongs()
-        }
-    }
-
-    private class SavePlaylistAsyncTask(context: Context) :
-        WeakContextAsyncTask<Playlist, String, String>(context) {
-
-        override fun doInBackground(vararg params: Playlist): String {
-            return String.format(
-                App.getContext().getString(
-                    R.string
-                        .saved_playlist_to
-                ), PlaylistsUtil.savePlaylist(App.getContext(), params[0])
-            )
-        }
-
-        override fun onPostExecute(string: String) {
-            super.onPostExecute(string)
-            val context = context
-            if (context != null) {
-                Toast.makeText(context, string, Toast.LENGTH_LONG).show()
-            }
-        }
-    }
 }

app/src/main/java/code/name/monkey/retromusic/util/PlaylistsUtil.java

@@ -33,6 +33,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import code.name.monkey.retromusic.R;
+import code.name.monkey.retromusic.db.PlaylistWithSongs;
 import code.name.monkey.retromusic.helper.M3UWriter;
 import code.name.monkey.retromusic.model.Playlist;
 import code.name.monkey.retromusic.model.PlaylistSong;
@@ -250,6 +251,10 @@ public class PlaylistsUtil {
         return M3UWriter.write(new File(Environment.getExternalStorageDirectory(), "Playlists"), playlist);
     }
 
+    public static File savePlaylistWithSongs(Context context, PlaylistWithSongs playlist) throws IOException {
+        return M3UWriter.writeIO(new File(Environment.getExternalStorageDirectory(), "Playlists"), playlist);
+    }
+
     public static boolean doesPlaylistExist(@NonNull final Context context, final int playlistId) {
         return playlistId != -1 && doesPlaylistExist(context,
                 MediaStore.Audio.Playlists._ID + "=?",

app/src/main/res/layout/loading.xml

@@ -20,7 +20,7 @@
     android:padding="14dp">
 
     <ProgressBar
-        style="@style/Widget.AppCompat.ProgressBar.Horizontal"
+        style="@style/Widget.MaterialComponents.ProgressIndicator.Linear.Indeterminate"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:indeterminate="true" />