json works in essence

src/json_config.vala

@@ -55,11 +55,11 @@ namespace Song {
         }
 
         private Config() {
-            playlists = new List<PlaylistObject>();
             load();
         }
         
         private async void load() {
+            playlists = new List<PlaylistObject>();
             print("load");
             File config_file = File.new_for_path(config_file_path);
             if (config_file.query_exists(null)) {
@@ -117,6 +117,11 @@ namespace Song {
             }
         }
     
+        /*public List<PlaylistObject> get_playlists() {
+            
+            return playlists.;
+        }*/
+
         // Save configuration to file
         public async void save() {
             print("save");
@@ -214,7 +219,7 @@ namespace Song {
             File config_file = File.new_for_path(config_file_path);
             if (!config_file.query_exists(null)) {
                 print("file never existed");
-                Config.get_instance().save(); // Create the file with default values
+                Config.get_instance().save.begin(); // Create the file with default values
             }
         }
     }

src/main.vala

@@ -1,23 +1,3 @@
-/* main.vala
- *
- * Copyright 2024 Leo Wen
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- * SPDX-License-Identifier: GPL-3.0-or-later
- */
-
 int main (string[] args) {
     Gst.init(ref args);
 
@@ -26,11 +6,9 @@ int main (string[] args) {
 
     Song.PlaylistObject playlist = new Song.PlaylistObject();
     playlist.name = "QQ";
-    playlist.add_item(Song.PlaylistItem.load_item(Song.ItemType.AUDIO, "aaa", "eee"));
 
-    config.playlists.append(playlist);
-    config.save();
 
     var app = new Song.Application ();
+    
     return app.run (args);
 }

src/music/new_music_popover.vala

@@ -281,14 +281,14 @@ namespace Song {
                     }
 
                     if (file_valid) {
-                        if (SongController.main_view_content == null) return;
+                        /*if (SongController.main_view_content == null) return;
                         var main_content = SongController.main_view_content;
-                        string[] _string_array = _list.get_strv(main_content.current_playlist);
+                        string[] _string_array = _list.get_strv(main_content.current_playlist.name);
                         _string_array += song_title;
                         _list.set_strv(main_content.current_playlist, _string_array);
                         foreach(string str in _list.get_strv(main_content.current_playlist)) {
                             print("this playlist has \n" + str);
-                        }
+                        }*/
                     }
 
                     //TODO implement error page

src/widgets/main_view.vala

@@ -69,7 +69,7 @@ namespace Song {
 
         private Settings settings = new Settings("com.liyaowhen.Song.playlists");
         private Adw.NavigationView navigation_view;
-        public string current_playlist;
+        public PlaylistObject current_playlist;
 
         public MainViewContent() {
             vexpand = true;
@@ -86,24 +86,12 @@ namespace Song {
             SongController.main_view_content = this;
         }
 
-        public void change_page(string playlist_name) {
+        public void change_page(PlaylistObject playlist) {
             print("change page called");
 
-            bool isKeyValid = false;
+            current_playlist = playlist;
-            foreach (string key in settings.list_keys()){
-                if (key == playlist_name) {
-                    print("valid playlist");
-                    isKeyValid = true;
-                }
-            }
-            if (!isKeyValid) {
-                print("invalid playlist_name");
-                return;
-            }
 
-            current_playlist = playlist_name;
+            /*string[] songs = settings.get_strv(playlist_name);
-
-            string[] songs = settings.get_strv(playlist_name);
             print("\n playlist contains: \n" + songs[1]);
             if (songs.length == 1) {
                 if (songs[0] == "") {empty_playlist_ui(playlist_name); return;}
@@ -115,39 +103,49 @@ namespace Song {
                     print("making a page with actual content");
                     playlist_ui(playlist_name);
                 }
+            }*/
+
+            if (playlist.items.is_empty()) {
+                empty_playlist_ui(playlist);
+                return;
+            } else {
+                playlist_ui(playlist);
             }
 
 
         }
 
-        private void empty_playlist_ui(string playlist_name) {
+        private void empty_playlist_ui(PlaylistObject playlist) {
             var empty_page = new Adw.StatusPage();
             var parent_page = new Adw.NavigationPage(empty_page,"no songs added");
-            empty_page.set_title("Empty Playlist " + playlist_name);
+            empty_page.set_title("Empty Playlist " + playlist.name);
             empty_page.set_icon_name("edit-find-symbolic");
             empty_page.set_description("Click the button on the top left to add songs in this playlist.");
             navigation_view.push(parent_page);      
         }
 
-        private void playlist_ui(string playlist_name) {
+        private void playlist_ui(PlaylistObject playlist) {
             var playlist_page = new Adw.StatusPage();
-            playlist_page.set_title(playlist_name);
+            playlist_page.set_title(playlist.name);
             playlist_page.set_icon_name("emblem-music-symbolic");
 
-            load_music(playlist_page, playlist_name);
+            load_music(playlist_page, playlist);
             
-            var parent_page = new Adw.NavigationPage(playlist_page, playlist_name);
+            var parent_page = new Adw.NavigationPage(playlist_page, playlist.name);
             navigation_view.push(parent_page);
         }
 
-        private void load_music(Adw.StatusPage page, string playlist_name) {
+        private void load_music(Adw.StatusPage page, PlaylistObject playlist) {
             Adw.Clamp clamp = new Adw.Clamp();
             Gtk.ListBox content = new Gtk.ListBox();
-            foreach (string i in settings.get_strv(playlist_name)) {
+            /*foreach (string i in settings.get_strv(playlist_name)) {
                 if (i != "") {
                     content.append(new MusicListRow(i));
                 }
-            }
+            }*/
+            playlist.items.foreach((item) => {
+                content.append(new MusicListRow(item));
+            });
             clamp.child = content;
             page.child = clamp;
             content.hexpand = true;

src/widgets/music_list_row.vala

@@ -2,10 +2,10 @@ namespace Song {
     public class MusicListRow : Gtk.Box {
 
         private Settings settings = new Settings("com.liyaowhen.Song.playlists");
-        public string song_name;
+        public PlaylistItem item;
 
-        public MusicListRow (string _song_name) {
+        public MusicListRow (PlaylistItem _item) {
-            this.song_name = _song_name;
+            this.item = _item;
             build_ui();
         }
 
@@ -23,8 +23,8 @@ namespace Song {
         }
 
         private void build_ui() {
-            var label = new Gtk.Label (song_name);
+            var label = new Gtk.Label (item.name);
-            print(song_name + "making playlists song button");
+            print(item.name + "making playlists song button");
             label.hexpand = true;
             append(label);
 
@@ -33,11 +33,11 @@ namespace Song {
             play_button.add_css_class("flat");
 
             play_button.clicked.connect(() => {
-                if (SongController.song_controls.current_song != song_name) {
+                if (SongController.song_controls.current_item != item) {
-                    SongController.song_controls.change_song(song_name);
+                    SongController.song_controls.change_item(item);
                     play_button.icon_name = "media-playback-pause-symbolic";
                     Timeout.add(1, () => {
-                        if (SongController.song_controls.current_song != song_name) {
+                        if (SongController.song_controls.current_item != item) {
                             // when another song is called to play, reset the button state
                             play_button.icon_name = "media-playback-start-symbolic";
                             return false;

src/widgets/playlist.vala

@@ -1,15 +1,15 @@
 namespace Song {
-    public class Playlist : Gtk.Button {
+    public class PlaylistButton : Gtk.Button {
 
         private Settings settings = new Settings ("com.liyaowhen.Song");
 
         public signal void removal_mode();
         public signal void exit_removal_mode();
         
-        private string playlist_name;
+        private PlaylistObject playlist;
 
-        public Playlist (string _playlist_name) {
+        public PlaylistButton (PlaylistObject _playlist) {
-            this.playlist_name = _playlist_name;
+            this.playlist = _playlist;
 
             initialize();
         }
@@ -19,12 +19,12 @@ namespace Song {
 
             clicked.connect(() => {
                 //assumes that main_view is already instanciated
-                SongController.main_view_content.change_page(playlist_name);
+                SongController.main_view_content.change_page(playlist);
             });
         }
 
         public void initialize() {
-            set_label(playlist_name);
+            set_label(playlist.name);
             
         }
     }

src/widgets/side_bar.vala

@@ -38,7 +38,7 @@ namespace Song {
     public class SideBarContent : Gtk.Box {
 
         private Settings settings = new Settings("com.liyaowhen.Song.playlists");
-        public List<Playlist> playlists;
+        public List<PlaylistButton> playlist_buttons;
         private MainView main_view;
 
         public SideBarContent() {
@@ -60,22 +60,34 @@ namespace Song {
             vexpand_set = true;
             hexpand_set = true;
 
-            Playlist initial_playlist;
+            PlaylistObject initial_playlist;
 
-            var playlist_names = settings.get_strv("playlists");
+            /*var playlist_names = settings.get_strv("playlists");
             foreach (string _name in playlist_names) {
-                var playlist = new Playlist(_name);
+                var playlist = new PlaylistButton(_name);
                 if (_name == playlist_names[0]) {
                     initial_playlist = playlist;
                 }
                 playlists.append(playlist);
                 append(playlist);
-            }
+            }*/
 
-            print("sidbar requesting main_view_content switch to playlist of name:\n" + playlist_names[1]);
+            Config config = Config.get_instance();
+            
+            bool firstDeclared = false;
+            config.playlists.foreach((_playlist) => {
+                var button = new PlaylistButton(_playlist);
+                if (!firstDeclared) {initial_playlist = _playlist; firstDeclared = true;}
+
+                playlist_buttons.append(button);
+                append(button);
+            });
+
+
+            //print("sidbar requesting main_view_content switch to playlist of name:\n" + playlists.nth_data(0).name);
             Timeout.add(1, () => {
                 if (SongController.main_view_content != null) {
-                    SongController.main_view_content.change_page(playlist_names[0]);
+                    SongController.main_view_content.change_page(initial_playlist);
                     return false;
 
                 }

src/widgets/song_controls.vala

@@ -13,7 +13,7 @@ namespace Song {
         private Gtk.Button progress_bar_controller;
 
         public bool isPlaying;
-        public string current_song;
+        public PlaylistItem current_item;
 
 
         public Gst.Element playbin;
@@ -123,7 +123,7 @@ namespace Song {
         }
 
         private void play_music() {
-            if (current_song != null) {
+            if (current_item != null) {
                 
             }
         }
@@ -138,15 +138,15 @@ namespace Song {
             isPlaying = false;
         }
 
-        public void change_song(string song) {
+        public void change_item(PlaylistItem item) {
-            print("song is now " + song + "\n");
+            print("song is now " + item.name + "\n");
-            current_song = song;
+            current_item = item;
-            string file_path = "file://" + settings.get_string("song-folder") +  "/" + current_song + ".mp3";
+            string file_path = item.file;
             print("song full path is " + file_path);
             playbin.set_state(Gst.State.NULL);
             playbin.set_property("uri", file_path);
-            playbin.set_state(Gst.State.PLAYING);
+            //playbin.set_state(Gst.State.PLAYING);
-            isPlaying = true;
+            //isPlaying = true;
 
         }