Update readme and screenshots

Handlers/MPDHandler.cs

@@ -155,7 +155,9 @@ namespace unison
 
             try
             {
+                Debug.WriteLine("SafelySendCommandAsync => before command");
                 IMpdMessage<T> response = await _commandConnection.SendAsync(command);
+                Debug.WriteLine("SafelySendCommandAsync => after command");
                 if (!response.IsResponseValid)
                 {
                     string mpdError = response.Response?.Result?.MpdError;
@@ -498,6 +500,8 @@ namespace unison
         public void Next() => SendCommand(new NextCommand());
         public void PlayPause() => SendCommand(new PauseResumeCommand());
 
+        public void Play(int pos) => SendCommand(new PlayCommand(pos));
+
         public void Random() => SendCommand(new RandomCommand(!_currentRandom));
         public void Repeat() => SendCommand(new RepeatCommand(!_currentRepeat));
         public void Single() => SendCommand(new SingleCommand(!_currentSingle));
@@ -553,25 +557,24 @@ namespace unison
 
         public async void QueryStats()
         {
-            Dictionary<string, string> response = await SafelySendCommandAsync(new StatsCommand());
+            Dictionary<string, string> Response = await SafelySendCommandAsync(new StatsCommand());
+            if (Response == null)
+                return;
 
-            if (response != null)
+            _stats.Songs = int.Parse(Response["songs"]);
-            {
+            _stats.Albums = int.Parse(Response["albums"]);
-                _stats.Songs = int.Parse(response["songs"]);
+            _stats.Artists = int.Parse(Response["artists"]);
-                _stats.Albums = int.Parse(response["albums"]);
-                _stats.Artists = int.Parse(response["artists"]);
 
             TimeSpan time;
-                time = TimeSpan.FromSeconds(int.Parse(response["uptime"]));
+            time = TimeSpan.FromSeconds(int.Parse(Response["uptime"]));
             _stats.Uptime = time.ToString(@"dd\:hh\:mm\:ss");
-                time = TimeSpan.FromSeconds(int.Parse(response["db_playtime"]));
+            time = TimeSpan.FromSeconds(int.Parse(Response["db_playtime"]));
             _stats.TotalPlaytime = time.ToString(@"dd\:hh\:mm\:ss");
-                time = TimeSpan.FromSeconds(int.Parse(response["playtime"]));
+            time = TimeSpan.FromSeconds(int.Parse(Response["playtime"]));
             _stats.TotalTimePlayed = time.ToString(@"dd\:hh\:mm\:ss");
 
-                DateTime date = new DateTime(1970, 1, 1).AddSeconds(int.Parse(response["db_update"])).ToLocalTime();
+            DateTime date = new DateTime(1970, 1, 1).AddSeconds(int.Parse(Response["db_update"])).ToLocalTime();
             _stats.DatabaseUpdate = date.ToString("dd/MM/yyyy @ HH:mm");
         }
     }
 }
-}

README.md

@@ -1,13 +1,14 @@
 # unison
 
-![Main window](Screenshots/screen1.png)
+![Main window](Screenshots/screen-mainwindow.png)
 
 **unison** is a very simple [Music Player Daemon (MPD)](https://www.musicpd.org/) daemon client with the following goals:
 
 * lightweight window that can be toggled with shortcuts
 * music control through rebindable shortcuts
+* shuffle panel
 * [Snapcast](https://mjaggard.github.io/snapcast/) integration
-* Radio stations
+* radio stations
 
 ## Features
 
@@ -15,13 +16,25 @@
 
 By default, unison works as a daemon in the taskbar system tray. You can display the main window when needed at any time with a shortcut.
 
-![Systray](Screenshots/screen2.png)
+![Systray](Screenshots/screen-systray.png)
 
 ### Shortcuts
 
 You can control your music at anytime with the shortcuts. They are usable system-wide, even if the window is not visible. They are of course fully rebindable.
 
-![Settings => shortcuts](Screenshots/screen3.png)
+![Settings => shortcuts](Screenshots/screen-shortcuts.png)
+
+### Shuffle panel
+
+One of unison's main feature is a complete shuffle system based on criterias, aka a smart playlist.
+
+You have two options:
+* **Add to queue** allows you to add a defined number of songs to the queue.
+* **Continuous shuffle** allows you, as long as the program is running, to automatically add songs to the queue.
+
+Each of these options work with filters, but if none are selected, it is based on the entire library.
+
+![Shuffle panel](Screenshots/screen-shuffle.png)
 
 ### Snapcast
 
@@ -31,12 +44,13 @@ Embedding a Snapcast client allows to listen to music on multiple devices. For e
 
 Through [Radio-Browser](https://www.radio-browser.info), a community database, you can play radio streams directly from unison. There are more than 28,000 stations recorded on this service, so it is a nice way to discover new music and cultures.
 
-![Radio stations](Screenshots/screen4.png)
+![Radio stations](Screenshots/screen-radio.png)
 
 ## Planned features
 
-* A complete shuffle system based on set criteria, aka a smart playlist.
+* Playlist, queue and library management
-* Playlist, queue and library management. I use other software to do it, but I will implement them at some point.
+* More options for the shuffle panel
+* Dark mode
 
 ## Translations
 

Views/MainWindow.xaml

@@ -110,14 +110,15 @@
             </Border>
         </Grid>
         <Grid x:Name="BottomLayout" HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Background="{DynamicResource {x:Static SystemColors.ControlLightBrushKey}}" Width="Auto" MinHeight="40">
-            <StackPanel HorizontalAlignment="Left" Orientation="Horizontal" VerticalAlignment="Center" Margin="0,0,10,0">
+            <StackPanel HorizontalAlignment="Left" Orientation="Horizontal" VerticalAlignment="Center" Margin="10,0,0,0">
-                <Button x:Name="Snapcast" HorizontalAlignment="Left" VerticalAlignment="Center" Click="Snapcast_Clicked" Margin="10,0,0,0" Padding="5, 2" Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" FocusVisualStyle="{x:Null}" IsEnabled="False">
+                <Button x:Name="Shuffle" Padding="5, 2" Click="Shuffle_Clicked" Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" FocusVisualStyle="{x:Null}" Margin="0,0,10,0">
                     <StackPanel Orientation="Horizontal">
-                        <emoji:TextBlock Text="🔊" Padding="0,0,0,2"/>
+                        <emoji:TextBlock Text="🔁" Padding="0,0,0,2"/>
-                        <TextBlock x:Name="SnapcastText" Text="{x:Static properties:Resources.StartSnapcast}" Margin="5, 0, 0, 0"/>
+                        <TextBlock Text="Shuffle" Margin="5, 0, 0, 0"/>
                     </StackPanel>
                 </Button>
-                <Button x:Name="Radio" Padding="5, 2" HorizontalAlignment="Left" Click="Radios_Clicked"  Margin="5,0,10,0" Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" FocusVisualStyle="{x:Null}" IsEnabled="False">
+
+                <Button x:Name="Radio" Padding="5, 2" HorizontalAlignment="Left" Click="Radios_Clicked" Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" FocusVisualStyle="{x:Null}" IsEnabled="False">
                     <StackPanel Orientation="Horizontal">
                         <emoji:TextBlock Text="📻" Padding="0,0,0,2"/>
                         <TextBlock Text="{x:Static properties:Resources.Radios}" Margin="5, 0, 0, 0"/>
@@ -135,12 +136,13 @@
                 <TextBlock x:Name="Connection" HorizontalAlignment="Center" Text="Not connected" TextWrapping="Wrap" VerticalAlignment="Top" TextAlignment="Center" Foreground="{DynamicResource {x:Static SystemColors.ControlDarkDarkBrushKey}}" Margin="5,0,0,0" />
             </StackPanel>
             <StackPanel HorizontalAlignment="Right" Orientation="Horizontal" VerticalAlignment="Center" Margin="0,0,10,0">
-                <!--<Button x:Name="Shuffle" Padding="5, 2" HorizontalAlignment="Right" Margin="0,0,10,0" Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}">
+                <Button x:Name="Snapcast" HorizontalAlignment="Left" VerticalAlignment="Center" Click="Snapcast_Clicked" Margin="0,0,10,0" Padding="5, 2" Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" FocusVisualStyle="{x:Null}" IsEnabled="False">
                     <StackPanel Orientation="Horizontal">
-                        <emoji:TextBlock Text="🔁" Padding="0,0,0,2"/>
+                        <emoji:TextBlock Text="🔊" Padding="0,0,0,2"/>
-                        <TextBlock Text="Shuffle" Margin="5, 0, 0, 0"/>
+                        <TextBlock x:Name="SnapcastText" Text="{x:Static properties:Resources.StartSnapcast}" Margin="5, 0, 0, 0"/>
                     </StackPanel>
-                </Button>-->
+                </Button>
+
                 <Button x:Name="Settings" Padding="5, 2" Click="Settings_Clicked" Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" FocusVisualStyle="{x:Null}">
                     <StackPanel Orientation="Horizontal">
                         <emoji:TextBlock Text="🛠️"  Padding="0,0,0,2"/>

Views/MainWindow.xaml.cs

@@ -6,6 +6,8 @@ using System.Windows.Threading;
 using System.Windows.Interop;
 using System.Windows.Input;
 using System.Windows.Controls.Primitives;
+using MpcNET.Commands.Queue;
+using System.Diagnostics;
 
 namespace unison
 {
@@ -13,6 +15,7 @@ namespace unison
     {
         private readonly Settings _settingsWin;
         private readonly Radios _radiosWin;
+        private readonly Shuffle _shuffleWin;
         private readonly DispatcherTimer _timer;
         private readonly MPDHandler _mpd;
 
@@ -25,6 +28,7 @@ namespace unison
 
             _settingsWin = new Settings();
             _radiosWin = new Radios();
+            _shuffleWin = new Shuffle();
             _timer = new DispatcherTimer();
             _mpd = (MPDHandler)Application.Current.Properties["mpd"];
 
@@ -46,9 +50,13 @@ namespace unison
         {
             if (_mpd.IsConnected())
             {
+                _mpd.QueryStats();
+                _settingsWin.UpdateStats();
+
                 Snapcast.IsEnabled = true;
                 ConnectionOkIcon.Visibility = Visibility.Visible;
                 ConnectionFailIcon.Visibility = Visibility.Collapsed;
+                _shuffleWin.Initialize();
             }
             else
             {
@@ -61,7 +69,7 @@ namespace unison
             Connection.Text = $"{Properties.Settings.Default.mpd_host}:{Properties.Settings.Default.mpd_port}";
         }
 
-        public void OnSongChanged(object sender, EventArgs e)
+        public async void OnSongChanged(object sender, EventArgs e)
         {
             if (_mpd.GetCurrentSong() == null)
                 return;
@@ -107,6 +115,18 @@ namespace unison
                     _timer.Start();
                 EndTime.Text = FormatSeconds(_mpd.GetCurrentSong().Time);
             }
+
+            Debug.WriteLine("Song changed called!");
+
+            if (!_shuffleWin.GetContinuous())
+                return;
+
+            NextTrack.IsEnabled = false;
+            PreviousTrack.IsEnabled = false;
+            await _shuffleWin.HandleContinuous();
+            NextTrack.IsEnabled = true;
+            PreviousTrack.IsEnabled = true;
+            Debug.WriteLine("finished continuous");
         }
 
         public void OnStatusChanged(object sender, EventArgs e)
@@ -135,9 +155,6 @@ namespace unison
                     DefaultState();
                 }
             }
-
-            _mpd.QueryStats();
-            _settingsWin.UpdateStats();
         }
 
         private void DefaultState(bool LostConnection = false)
@@ -210,8 +227,18 @@ namespace unison
         }
 
         public void Pause_Clicked(object sender, RoutedEventArgs e) => _mpd.PlayPause();
-        public void Previous_Clicked(object sender, RoutedEventArgs e) =>  _mpd.Prev();
+
-        public void Next_Clicked(object sender, RoutedEventArgs e) => _mpd.Next();
+        public void Previous_Clicked(object sender, RoutedEventArgs e)
+        {
+            if (PreviousTrack.IsEnabled)
+                _mpd.Prev();
+        }
+
+        public void Next_Clicked(object sender, RoutedEventArgs e)
+        {
+            if (NextTrack.IsEnabled)
+                _mpd.Next();
+        }
 
         public void Random_Clicked(object sender, RoutedEventArgs e) => _mpd.Random();
         public void Repeat_Clicked(object sender, RoutedEventArgs e) => _mpd.Repeat();
@@ -234,6 +261,15 @@ namespace unison
                 _radiosWin.WindowState = WindowState.Normal;
         }
 
+        public void Shuffle_Clicked(object sender, RoutedEventArgs e)
+        {
+            _shuffleWin.Show();
+            _shuffleWin.Activate();
+
+            if (_shuffleWin.WindowState == WindowState.Minimized)
+                _shuffleWin.WindowState = WindowState.Normal;
+        }
+
         public void Settings_Clicked(object sender, RoutedEventArgs e)
         {
             _settingsWin.Show();

Views/Settings.xaml

@@ -60,60 +60,6 @@
                     </DockPanel>
                 </TabItem>
 
-                <TabItem Header="{x:Static properties:Resources.Stats}">
-                    <DockPanel Margin="8">
-                        <GroupBox DockPanel.Dock="Top" Padding="0,4,0,0">
-                            <GroupBox.Header>
-                                <TextBlock>
-                                    <emoji:EmojiInline Text="📊"/>
-                                    <Run Text="{x:Static properties:Resources.Stats}"/>
-                                </TextBlock>
-                            </GroupBox.Header>
-                            <Grid VerticalAlignment="Top">
-                                <TextBlock>
-                                    <Run Text="{x:Static properties:Resources.Stats_Songs}"/><Run Text=" "/><Run x:Name="StatSong"/><LineBreak/>
-                                    <Run Text="{x:Static properties:Resources.Stats_Albums}"/><Run Text=" "/><Run x:Name="StatAlbum"/><LineBreak/>
-                                    <Run Text="{x:Static properties:Resources.Stats_Artists}"/><Run Text=" "/><Run x:Name="StatArtist"/><LineBreak/>
-                                    <Run Text="{x:Static properties:Resources.Stats_TotalPlaytime}"/><Run Text=" "/><Run x:Name="StatTotalPlaytime"/><LineBreak/><LineBreak/>
-                                    <Run Text="{x:Static properties:Resources.Stats_Uptime}"/><Run Text=" "/><Run x:Name="StatUptime"/><LineBreak/>
-                                    <Run Text="{x:Static properties:Resources.Stats_TotalTimePlayed}"/><Run Text=" "/><Run x:Name="StatTotalTimePlayed"/><LineBreak/>
-                                    <Run Text="{x:Static properties:Resources.Stats_LastDatabaseUpdate}"/><Run Text=" "/><Run x:Name="StatDatabaseUpdate"/>
-                                </TextBlock>
-                            </Grid>
-                        </GroupBox>
-                    </DockPanel>
-                </TabItem>
-
-                <TabItem Header="Snapcast">
-                    <DockPanel Margin="8">
-                        <GroupBox DockPanel.Dock="Top" Padding="0,4,0,0">
-                            <GroupBox.Header>
-                                <emoji:TextBlock Text="🔊 Snapcast"/>
-                            </GroupBox.Header>
-                            <Grid VerticalAlignment="Top">
-                                <StackPanel>
-                                    <StackPanel>
-                                        <CheckBox x:Name="SnapcastStartup" Margin="5, 5, 0, 0">
-                                            <TextBlock Text="{x:Static properties:Resources.Settings_SnapcastLauch}" TextWrapping="Wrap"/>
-                                        </CheckBox>
-                                        <CheckBox x:Name="SnapcastWindow" Margin="5,2.5,0,0">
-                                            <TextBlock Text="{x:Static properties:Resources.Settings_SnapcastWindow}" TextWrapping="Wrap"/>
-                                        </CheckBox>
-                                        <TextBlock Text="{x:Static properties:Resources.Settings_SnapcastPort}" TextWrapping="Wrap" Margin="5,5,0,0"/>
-                                        <TextBox x:Name="SnapcastPort" MaxLength="5" PreviewTextInput="NumberValidationTextBox" TextWrapping="Wrap" Width="250" Margin="10,2,5,0" HorizontalAlignment="Left"/>
-                                        <TextBlock Text="{x:Static properties:Resources.Settings_SnapcastPath}" TextWrapping="Wrap" Margin="5,5,0,0"/>
-                                        <TextBox x:Name="SnapcastPath" TextWrapping="Wrap" Width="250" Margin="10,2,5,0" HorizontalAlignment="Left"/>
-                                        <TextBlock TextWrapping="Wrap" Margin="5,5,0,0" TextAlignment="Left" Width="250">
-                                            <Run Text="{x:Static properties:Resources.Settings_SnapcastInfo1}" /><Run Text="{x:Static properties:Resources.Settings_SnapcastInfo2}" FontStyle="Italic" FontWeight="DemiBold" /><Run Text="{x:Static properties:Resources.Settings_SnapcastInfo3}" />
-                                        </TextBlock>
-                                        <Button Content="{x:Static properties:Resources.Settings_SnapcastResetButton}" Margin="0,10,0,0" Width="120" Click="SnapcastReset_Clicked"/>
-                                    </StackPanel>
-                                </StackPanel>
-                            </Grid>
-                        </GroupBox>
-                    </DockPanel>
-                </TabItem>
-
                 <TabItem Header="{x:Static properties:Resources.Settings_Shortcuts}">
                     <DockPanel Margin="8">
                         <GroupBox DockPanel.Dock="Top" Padding="0,4,0,0">
@@ -215,13 +161,94 @@
                                     </StackPanel>
 
                                     <Button Content="{x:Static properties:Resources.Settings_SnapcastResetButton}" Margin="0,10,0,0" Width="120" Click="ShortcutsReset_Clicked"/>
-
                                 </StackPanel>
                             </Grid>
                         </GroupBox>
                     </DockPanel>
                 </TabItem>
 
+                <TabItem Header="Snapcast">
+                    <DockPanel Margin="8">
+                        <GroupBox DockPanel.Dock="Top" Padding="0,4,0,0">
+                            <GroupBox.Header>
+                                <emoji:TextBlock Text="🔊 Snapcast"/>
+                            </GroupBox.Header>
+                            <Grid VerticalAlignment="Top">
+                                <StackPanel>
+                                    <StackPanel>
+                                        <CheckBox x:Name="SnapcastStartup" Margin="5, 5, 0, 0">
+                                            <TextBlock Text="{x:Static properties:Resources.Settings_SnapcastLauch}" TextWrapping="Wrap"/>
+                                        </CheckBox>
+                                        <CheckBox x:Name="SnapcastWindow" Margin="5,2.5,0,0">
+                                            <TextBlock Text="{x:Static properties:Resources.Settings_SnapcastWindow}" TextWrapping="Wrap"/>
+                                        </CheckBox>
+                                        <TextBlock Text="{x:Static properties:Resources.Settings_SnapcastPort}" TextWrapping="Wrap" Margin="5,5,0,0"/>
+                                        <TextBox x:Name="SnapcastPort" MaxLength="5" PreviewTextInput="NumberValidationTextBox" TextWrapping="Wrap" Width="250" Margin="10,2,5,0" HorizontalAlignment="Left"/>
+                                        <TextBlock Text="{x:Static properties:Resources.Settings_SnapcastPath}" TextWrapping="Wrap" Margin="5,5,0,0"/>
+                                        <TextBox x:Name="SnapcastPath" TextWrapping="Wrap" Width="250" Margin="10,2,5,0" HorizontalAlignment="Left"/>
+                                        <TextBlock TextWrapping="Wrap" Margin="5,5,0,0" TextAlignment="Left" Width="250">
+                                            <Run Text="{x:Static properties:Resources.Settings_SnapcastInfo1}" /><Run Text="{x:Static properties:Resources.Settings_SnapcastInfo2}" FontStyle="Italic" FontWeight="DemiBold" /><Run Text="{x:Static properties:Resources.Settings_SnapcastInfo3}" />
+                                        </TextBlock>
+                                        <Button Content="{x:Static properties:Resources.Settings_SnapcastResetButton}" Margin="0,10,0,0" Width="120" Click="SnapcastReset_Clicked"/>
+                                    </StackPanel>
+                                </StackPanel>
+                            </Grid>
+                        </GroupBox>
+                    </DockPanel>
+                </TabItem>
+
+                <TabItem Header="Shuffle">
+                    <DockPanel Margin="8">
+                        <GroupBox DockPanel.Dock="Top" Padding="0,4,0,0">
+                            <GroupBox.Header>
+                                <TextBlock>
+                                    <emoji:EmojiInline Text="🔁 "/>
+                                    <Run Text="Shuffle"></Run>
+                                </TextBlock>
+                            </GroupBox.Header>
+                            <Grid MaxWidth="500">
+                                <StackPanel>
+                                    <TextBlock TextWrapping="Wrap">
+                                        <Run>The shuffle window allows to add random songs to your queue. Both options take into account the filter.</Run>
+                                        <Run>If the filter is empty, the entire music library is taken into account.</Run><LineBreak/><LineBreak/>
+                                        
+                                        <Run FontWeight="Bold">Add to queue</Run><LineBreak/>
+                                        <Run>Add a fixed number of songs to the queue. It can take a long time to add more than 100 songs, so the option is limited to 1000 songs.</Run>
+                                        <LineBreak/><LineBreak/>
+                                        
+                                        <Run FontWeight="Bold">Continuous shuffle</Run><LineBreak/>
+                                        <Run>By enabling this option, unison will automatically add songs to the queue so you never run out of songs to listen to.</Run>
+                                    </TextBlock>
+                                </StackPanel>
+                            </Grid>
+                        </GroupBox>
+                    </DockPanel>
+                </TabItem>
+
+                <TabItem Header="{x:Static properties:Resources.Stats}">
+                    <DockPanel Margin="8">
+                        <GroupBox DockPanel.Dock="Top" Padding="0,4,0,0">
+                            <GroupBox.Header>
+                                <TextBlock>
+                                    <emoji:EmojiInline Text="📊"/>
+                                    <Run Text="{x:Static properties:Resources.Stats}"/>
+                                </TextBlock>
+                            </GroupBox.Header>
+                            <Grid VerticalAlignment="Top">
+                                <TextBlock>
+                                    <Run Text="{x:Static properties:Resources.Stats_Songs}"/><Run Text=" "/><Run x:Name="StatSong"/><LineBreak/>
+                                    <Run Text="{x:Static properties:Resources.Stats_Albums}"/><Run Text=" "/><Run x:Name="StatAlbum"/><LineBreak/>
+                                    <Run Text="{x:Static properties:Resources.Stats_Artists}"/><Run Text=" "/><Run x:Name="StatArtist"/><LineBreak/>
+                                    <Run Text="{x:Static properties:Resources.Stats_TotalPlaytime}"/><Run Text=" "/><Run x:Name="StatTotalPlaytime"/><LineBreak/><LineBreak/>
+                                    <Run Text="{x:Static properties:Resources.Stats_Uptime}"/><Run Text=" "/><Run x:Name="StatUptime"/><LineBreak/>
+                                    <Run Text="{x:Static properties:Resources.Stats_TotalTimePlayed}"/><Run Text=" "/><Run x:Name="StatTotalTimePlayed"/><LineBreak/>
+                                    <Run Text="{x:Static properties:Resources.Stats_LastDatabaseUpdate}"/><Run Text=" "/><Run x:Name="StatDatabaseUpdate"/>
+                                </TextBlock>
+                            </Grid>
+                        </GroupBox>
+                    </DockPanel>
+                </TabItem>
+
                 <TabItem Header="{x:Static properties:Resources.Settings_About}" Height="20" VerticalAlignment="Bottom">
                     <DockPanel Margin="8">
                         <GroupBox DockPanel.Dock="Top" Padding="0,4,0,0">

Views/Shuffle.xaml

@@ -0,0 +1,116 @@
+<Window x:Class="unison.Shuffle"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:emoji="clr-namespace:Emoji.Wpf;assembly=Emoji.Wpf"
+        xmlns:local="clr-namespace:unison" xmlns:sys="clr-namespace:System;assembly=System.Runtime"
+        mc:Ignorable="d"
+        Title="Shuffle" Closing="Window_Closing" SizeToContent="WidthAndHeight" ResizeMode="NoResize">
+
+    <Window.Resources>
+        <x:Array x:Key="FilterType" Type="sys:String">
+            <sys:String>Song</sys:String>
+            <sys:String>Artist</sys:String>
+            <sys:String>Album</sys:String>
+            <sys:String>Year</sys:String>
+            <sys:String>Genre</sys:String>
+            <sys:String>Directory</sys:String>
+        </x:Array>
+        <x:Array x:Key="OperatorTypeA" Type="sys:String">
+            <sys:String>contains</sys:String>
+            <sys:String>is</sys:String>
+            <sys:String>is not</sys:String>
+        </x:Array>
+        <x:Array x:Key="OperatorTypeB" Type="sys:String">
+            <sys:String>is</sys:String>
+            <sys:String>is not</sys:String>
+        </x:Array>
+        <x:Array x:Key="OperatorTypeC" Type="sys:String">
+            <sys:String>is</sys:String>
+        </x:Array>
+
+        <DataTemplate x:Key="FilterPanel">
+            <StackPanel Orientation="Horizontal" Margin="0,5,0,0">
+                <ComboBox x:Name="FilterType" SelectionChanged="FilterType_SelectionChanged" ItemsSource="{StaticResource FilterType}" SelectedIndex="0" Width="100" ScrollViewer.CanContentScroll="False" FocusVisualStyle="{x:Null}"/>
+                <ComboBox x:Name="FilterOperator" SelectionChanged="OperatorType_SelectionChanged" ItemsSource="{StaticResource OperatorTypeA}" SelectedIndex="0" Width="80" ScrollViewer.CanContentScroll="False" Margin="5,0,0,0" FocusVisualStyle="{x:Null}"/>
+                <ComboBox x:Name="FilterList" SelectedIndex="0" Width="240" Visibility="Collapsed" ScrollViewer.CanContentScroll="False" Margin="5,0,0,0" FocusVisualStyle="{x:Null}"/>
+                <TextBox x:Name="FilterValue" Width="240" Margin="5,0,0,0"/>
+                <Button Content="-" Padding="5, 2" Click="RemoveFilter_Clicked" Width="20" VerticalAlignment="Bottom" HorizontalAlignment="Left" FocusVisualStyle="{x:Null}" Margin="5,0,0,0"/>
+                <Button Content="+" Padding="5, 2" Click="AddFilter_Clicked" Width="20" VerticalAlignment="Bottom" HorizontalAlignment="Left" FocusVisualStyle="{x:Null}" Margin="5,0,0,0"/>
+            </StackPanel>
+        </DataTemplate>
+    </Window.Resources>
+
+    <Grid>
+        <StackPanel>
+            <StackPanel HorizontalAlignment="Left" Orientation="Vertical" Margin="5,0,5,5">
+                <GroupBox DockPanel.Dock="Top" Padding="0,4,0,0">
+                    <GroupBox.Header>
+                        <TextBlock>
+                            <emoji:EmojiInline Text="🔡"/>
+                            <Run Text="Filter"/>
+                        </TextBlock>
+                    </GroupBox.Header>
+                    <StackPanel Orientation="Vertical" Margin="5,0,5,0">
+
+                        <StackPanel x:Name="FilterPanel">
+                            <ContentPresenter ContentTemplate="{StaticResource FilterPanel}"/>
+                        </StackPanel>
+
+                        <StackPanel x:Name="SongFilterPanel" Margin="0,10,0,0">
+                            <TextBlock>
+                                <Run Text="Number of songs in filter: "/><Run x:Name="SongFilterNumber" FontWeight="Bold"/>
+                            </TextBlock>
+                        </StackPanel>
+
+                        <StackPanel Margin="0,5,0,0">
+                            <StackPanel Orientation="Horizontal" Margin="0,5,0,5">
+                                <Button Content="Query filter" Click="UpdateFilter_Clicked" Padding="5, 2" VerticalAlignment="Bottom" HorizontalAlignment="Left" FocusVisualStyle="{x:Null}" Margin="0,0,10,0"/>
+                                <Button Content="Reset" Click="Reset_Clicked" Padding="5, 2" VerticalAlignment="Bottom" HorizontalAlignment="Left" FocusVisualStyle="{x:Null}"/>
+                            </StackPanel>
+                        </StackPanel>
+                    </StackPanel>
+                </GroupBox>
+
+
+                <StackPanel Orientation="Horizontal" Margin="0,5,0,0">
+                    <GroupBox DockPanel.Dock="Right" Padding="0,4,0,0" Width="248">
+                        <GroupBox.Header>
+                            <TextBlock>
+                            <emoji:EmojiInline Text="➕"/>
+                            <Run Text="Add to queue"/>
+                            </TextBlock>
+                        </GroupBox.Header>
+                        <StackPanel Orientation="Vertical" Margin="5,5,5,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Left">
+                                <TextBlock Text="Songs to add" Margin="0,0,5,5"/>
+                                <TextBox x:Name="SongNumber" PreviewTextInput="QueueValidationTextBox" MaxLength="4" Text="100" Width="35" HorizontalAlignment="Left" VerticalAlignment="Top"/>
+                            </StackPanel>
+                            <StackPanel Orientation="Horizontal" Margin="0,5,0,0">
+                                <Button Content="Add to queue" Click="AddToQueue_Clicked" Padding="5, 2" HorizontalAlignment="Left" FocusVisualStyle="{x:Null}"/>
+                                <TextBlock x:Name="SearchStatus" Margin="15,3,0,0" FontStyle="Italic" Visibility="Collapsed">
+                                    <Run Text="Added "/><Run x:Name="NumberAddedSongs"/><Run Text=" songs"/>
+                                </TextBlock>
+                            </StackPanel>
+                        </StackPanel>
+                    </GroupBox>
+                    
+                    <GroupBox DockPanel.Dock="Left" Padding="0,4,0,0" Width="248" Margin="0,0,5,0">
+                        <GroupBox.Header>
+                            <TextBlock>
+                                <emoji:EmojiInline Text="♾️"/>
+                                <Run Text="Continuous shuffle"/>
+                            </TextBlock>
+                        </GroupBox.Header>
+                        <StackPanel Orientation="Horizontal" Margin="5,7,5,0">
+                            <CheckBox x:Name="ContinuousShuffle" Checked="ContinuousShuffle_Checked" Unchecked="ContinuousShuffle_Checked" FocusVisualStyle="{x:Null}" VerticalAlignment="Top">
+                                <TextBlock Text="Enable continuous shuffle" TextWrapping="Wrap"/>
+                            </CheckBox>
+                        </StackPanel>
+                    </GroupBox>
+                </StackPanel>
+            </StackPanel>
+        </StackPanel>
+    </Grid>
+</Window>

Views/Shuffle.xaml.cs

@@ -0,0 +1,493 @@
+using MpcNET;
+using MpcNET.Commands.Database;
+using MpcNET.Commands.Reflection;
+using MpcNET.Tags;
+using MpcNET.Types;
+using MpcNET.Types.Filters;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Interop;
+using System.Windows.Media;
+using System.Linq;
+using MpcNET.Commands.Queue;
+using System.Windows.Input;
+using System.Text.RegularExpressions;
+
+namespace unison
+{
+    public partial class Shuffle : Window
+    {
+        private MPDHandler _mpd;
+        bool _continuous = false;
+        List<string> _songList { get; }
+        List<string> _genreList { get; }
+        List<string> _folderList { get; }
+        List<IFilter> _filters { get; }
+
+        public Shuffle()
+        {
+            InitializeComponent();
+            _songList = new();
+            _genreList = new();
+            _folderList = new();
+            _filters = new();
+            SongFilterNumber.Text = "0";
+
+            _mpd = (MPDHandler)Application.Current.Properties["mpd"];
+        }
+
+        public void Initialize()
+        {
+            ListGenre();
+            ListFolder();
+        }
+
+        public async void ListGenre()
+        {
+            if (_genreList.Count != 0)
+                return;
+
+            List<string> Response = await _mpd.SafelySendCommandAsync(new ListCommand(MpdTags.Genre, null, null));
+
+            if (Response == null)
+                return;
+
+            foreach (string genre in Response)
+                _genreList.Add(genre);
+        }
+
+        public async void ListFolder()
+        {
+            if (_folderList.Count != 0)
+                return;
+
+            IEnumerable<IMpdFilePath> Response = await _mpd.SafelySendCommandAsync(new LsInfoCommand(""));
+
+            if (Response == null)
+                return;
+
+            foreach (IMpdFilePath folder in Response)
+                _folderList.Add(folder.Name);
+        }
+
+        private bool IsFilterEmpty()
+        {
+            if (_filters.Count() == 0)
+                return true;
+            return false;
+        }
+
+        private void Window_Closing(object sender, CancelEventArgs e)
+        {
+            e.Cancel = true;
+            WindowState = WindowState.Minimized;
+            Hide();
+        }
+
+        public void InitHwnd()
+        {
+            WindowInteropHelper helper = new(this);
+            helper.EnsureHandle();
+        }
+
+        private bool IsOnMainThread()
+        {
+            return App.Current.Dispatcher.Thread == System.Threading.Thread.CurrentThread;
+        }
+
+        private T FindParent<T>(DependencyObject child) where T : DependencyObject
+        {
+            var parent = VisualTreeHelper.GetParent(child);
+
+            if (parent == null)
+                return null;
+
+            if (parent is T)
+                return parent as T;
+            else
+                return FindParent<T>(parent);
+        }
+
+
+
+        private void AddFilter_Clicked(object sender, RoutedEventArgs e)
+        {
+            FilterPanel.Children.Add(new ContentPresenter { ContentTemplate = (DataTemplate)FindResource("FilterPanel") });
+            SongFilterNumber.Text = "0";
+        }
+
+        private void RemoveFilter_Clicked(object sender, RoutedEventArgs e)
+        {
+            if (FilterPanel.Children.Count > 1)
+                FilterPanel.Children.Remove(FindParent<ContentPresenter>(sender as Button));
+            else
+                Reset_Clicked(null, null);
+            SongFilterNumber.Text = "0";
+        }
+
+        private void Reset_Clicked(object sender, RoutedEventArgs e)
+        {
+            FilterPanel.Children.RemoveRange(0, FilterPanel.Children.Count);
+            FilterPanel.Children.Add(new ContentPresenter { ContentTemplate = (DataTemplate)FindResource("FilterPanel") });
+            SongFilterNumber.Text = "0";
+        }
+
+        private ITag FilterEquivalence_Type(string value)
+        {
+            if (value == "Song")
+                return MpdTags.Title;
+            else if (value == "Artist")
+                return MpdTags.Artist;
+            else if (value == "Album")
+                return MpdTags.Album;
+            else if (value == "Year")
+                return MpdTags.Date;
+            else if (value == "Genre")
+                return MpdTags.Genre;
+            return MpdTags.Title;
+        }
+
+        private FilterOperator FilterEquivalence_Operator(string value)
+        {
+            if (value == "contains")
+                return FilterOperator.Contains;
+            else if (value == "is")
+                return FilterOperator.Equal;
+            else if (value == "is not")
+                return FilterOperator.Different;
+            return FilterOperator.Equal;
+        }
+
+        private async void UpdateFilter_Clicked(object sender, RoutedEventArgs e)
+        {
+            _filters.Clear();
+
+            Debug.WriteLine("is on main thread => " + IsOnMainThread());
+
+            foreach (ContentPresenter superChild in FilterPanel.Children)
+            {
+                ITag tag = MpdTags.Title;
+                FilterOperator op = FilterOperator.None;
+                string value = "";
+                bool isDir = false;
+
+                StackPanel stackPanel = VisualTreeHelper.GetChild(superChild, 0) as StackPanel;
+                foreach (TextBox child in stackPanel.Children.OfType<TextBox>())
+                {
+                    if (child.Name == "FilterValue")
+                        value = child.Text;
+                }
+                foreach (ComboBox child in stackPanel.Children.OfType<ComboBox>())
+                {
+                    if (child.Name == "FilterType")
+                    {
+                        if (child.SelectedItem.ToString() == "Directory")
+                            isDir = true;
+                        else
+                            tag = FilterEquivalence_Type(child.SelectedItem.ToString());
+                    }
+
+                    if (child.Name == "FilterOperator")
+                        op = FilterEquivalence_Operator(child.SelectedItem.ToString());
+
+                    if (child.Name == "FilterList" && child.Visibility == Visibility.Visible)
+                        value = child.SelectedItem.ToString();
+                }
+
+                if (value != "")
+                {
+                    if (!isDir)
+                        _filters.Add(new FilterTag(tag, value, op));
+                    else
+                        _filters.Add(new FilterBase(value, FilterOperator.None));
+
+                    await GetSongsFromFilter();
+                }
+            }
+        }
+
+        private async Task GetSongsFromFilter()
+        {
+            Debug.WriteLine("get songs from filter => start");
+
+            Debug.WriteLine("is on main thread => " + IsOnMainThread());
+
+            _songList.Clear();
+            SongFilterPanel.Visibility = Visibility.Visible;
+
+            int song = _mpd.GetStats().Songs;
+
+            Debug.WriteLine("get songs from filter => before command");
+
+            CommandList commandList = new CommandList(new IMpcCommand<object>[] { new SearchCommand(_filters, 0, song + 1) });
+            string Response = await _mpd.SafelySendCommandAsync(commandList);
+
+            Debug.WriteLine("get songs from filter => after command");
+
+            // create a list of the file url
+            string[] value = Response.Split(", [file, ");
+
+            // there are no song in this filter
+            if (value[0] == "")
+            {
+                SongFilterNumber.Text = _songList.Count.ToString();
+                return;
+            }
+
+            Debug.WriteLine("get songs from filter => before adding to list");
+
+            foreach (string file in value)
+            {
+                int start = 0;
+                int end = file.IndexOf("],");
+                string filePath = file.Substring(start, end - start);
+
+                _songList.Add(filePath);
+                SongFilterNumber.Text = _songList.Count.ToString();
+            }
+
+            Debug.WriteLine("get songs from filter => after adding to list");
+
+            // remove characters from first file
+            _songList[0] = _songList[0].Substring(7, _songList[0].Length - 7);
+
+            SongFilterPanel.Visibility = Visibility.Visible;
+            SongFilterNumber.Text = _songList.Count.ToString();
+
+            Debug.WriteLine("get songs from filter => finish");
+        }
+
+        private void FilterType_Change(object sender, string Operator, List<string> Listing)
+        {
+            ComboBox comboBox = sender as ComboBox;
+            StackPanel stackPanel = comboBox.Parent as StackPanel;
+            foreach (ComboBox child in stackPanel.Children.OfType<ComboBox>())
+            {
+                if (child.Name == "FilterOperator")
+                {
+                    child.ItemsSource = (Array)FindResource(Operator);
+                    child.SelectedItem = child.Items[0];
+                }
+
+                if (child.Name == "FilterList")
+                {
+                    child.Visibility = Visibility.Visible;
+                    child.ItemsSource = Listing;
+                    child.SelectedItem = child.Items[0];
+                }
+            }
+            foreach (TextBox child in stackPanel.Children.OfType<TextBox>())
+            {
+                if (child.Name == "FilterValue")
+                    child.Visibility = Visibility.Collapsed;
+            }
+            SongFilterNumber.Text = "0";
+        }
+
+        private void FilterType_SelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            string item = e.AddedItems[0].ToString();
+            if (item == "Genre")
+                FilterType_Change(sender, "OperatorTypeB", _genreList);
+            else if (item == "Directory")
+                FilterType_Change(sender, "OperatorTypeC", _folderList);
+            else
+            {
+                ComboBox combobox = sender as ComboBox;
+                StackPanel stackpanel = combobox.Parent as StackPanel;
+                foreach (ComboBox child in stackpanel.Children.OfType<ComboBox>())
+                {
+                    if (child.Name == "FilterOperator")
+                    {
+                        child.ItemsSource = (Array)FindResource("OperatorTypeA");
+                        child.SelectedItem = child.Items[0];
+                    }
+
+                    if (child.Name == "FilterList")
+                        child.Visibility = Visibility.Collapsed;
+                }
+                foreach (TextBox child in stackpanel.Children.OfType<TextBox>())
+                {
+                    if (child.Name == "FilterValue")
+                        child.Visibility = Visibility.Visible;
+                }
+            }
+            SongFilterNumber.Text = "0";
+        }
+
+        private void OperatorType_SelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            Debug.WriteLine("selection changed => operator type");
+            SongFilterNumber.Text = "0";
+        }
+
+        private void QueueValidationTextBox(object sender, TextCompositionEventArgs e)
+        {
+            Regex regex = new Regex("[^0-9]+");
+            e.Handled = regex.IsMatch(e.Text);
+        }
+
+        private void QueueValidationNumber()
+        {
+            if (int.Parse(SongNumber.Text) < 1)
+                SongNumber.Text = "1";
+            if (int.Parse(SongNumber.Text) > 1000)
+                SongNumber.Text = "1000";
+        }
+
+
+
+
+
+
+
+
+
+        private async void AddToQueue_Clicked(object sender, RoutedEventArgs e)
+        {
+            QueueValidationNumber();
+
+            if (_mpd.GetStats() == null)
+                return;
+
+            if (IsFilterEmpty())
+                await AddToQueueRandom(int.Parse(SongNumber.Text)); // @TODO await or not???
+            else
+            {
+                UpdateFilter_Clicked(null, null);
+                await AddToQueueFilter(int.Parse(SongNumber.Text)); // @TODO await or not???
+            }
+        }
+
+        private async /*void*/ Task AddToQueueRandom(int SongNumber)
+        {
+            int AddedSongs = 0;
+            NumberAddedSongs.Text = AddedSongs.ToString();
+            SearchStatus.Visibility = Visibility.Visible;
+
+            Debug.WriteLine("song to add => " + SongNumber);
+            for (int i = 0; i < SongNumber; i++)
+            {
+                // generate random number
+                int song = new Random().Next(0, _mpd.GetStats().Songs - 1);
+
+                // query random song
+                CommandList commandList = new CommandList(new IMpcCommand<object>[] { new SearchCommand(new FilterTag(MpdTags.Title, "", FilterOperator.Contains), song, song + 1) });
+                string Response = await _mpd.SafelySendCommandAsync(commandList);
+
+                await Task.Delay(1);
+                if (Response.Length > 0)
+                {
+                    // parse song and add it to queue
+                    int start = Response.IndexOf("[file, ");
+                    int end = Response.IndexOf("],");
+                    string filePath = Response.Substring(start + 7, end - (start + 7));
+                    _mpd.AddSong(filePath);
+                    Debug.WriteLine("song path => " + filePath);
+
+                    AddedSongs++;
+                    NumberAddedSongs.Text = AddedSongs.ToString();
+                }
+            }
+
+            // TODO make play at first position added, as soon as possible
+            if (!_mpd.IsPlaying())
+                _mpd.Play(0);
+
+            SearchStatus.Visibility = Visibility.Collapsed;
+        }
+
+        private async /*void*/ Task AddToQueueFilter(int SongNumber)
+        {
+            int AddedSongs = 0;
+            NumberAddedSongs.Text = AddedSongs.ToString();
+            SearchStatus.Visibility = Visibility.Visible;
+
+            Debug.WriteLine("song to add => " + SongNumber);
+
+            // more requested songs than available => add everything
+            if (SongNumber > _songList.Count)
+            {
+                foreach (string path in _songList)
+                {
+                    await Task.Delay(1);
+                    _mpd.AddSong(path);
+                    Debug.WriteLine("song path => " + path);
+
+                    AddedSongs++;
+                    NumberAddedSongs.Text = AddedSongs.ToString();
+                }
+            }
+            // more available songs than requested =>
+            // we add unique indexes until we reach the requested amount
+            else
+            {
+                HashSet<int> SongIndex = new();
+                while (SongIndex.Count < SongNumber)
+                {
+                    int MaxIndex = new Random().Next(0, _songList.Count - 1);
+                    SongIndex.Add(MaxIndex);
+                }
+
+                foreach (int index in SongIndex)
+                    _mpd.AddSong(_songList[index]);
+            }
+
+            SearchStatus.Visibility = Visibility.Collapsed;
+        }
+
+
+        public bool GetContinuous()
+        {
+            return _continuous;
+        }
+
+        public async Task HandleContinuous()
+        {
+            if (!GetContinuous())
+                return;
+
+            Debug.WriteLine("is on main thread => " + IsOnMainThread());
+
+            IEnumerable<IMpdFile> Playlist = await _mpd.SafelySendCommandAsync(new PlaylistCommand());
+            int queueSize = 0;
+            foreach (IMpdFile file in Playlist)
+            {
+                Debug.WriteLine(file.Path);
+                queueSize++;
+            }
+            Debug.WriteLine("queue size is: " + queueSize);
+
+            if (queueSize < 5)
+            {
+                if (_mpd.GetStats() == null)
+                    return;
+
+                if (IsFilterEmpty())
+                    await AddToQueueRandom(5); // @TODO await or not?
+                else
+                    await AddToQueueFilter(5);  // @TODO await or not?
+            }
+        }
+
+        private async void ContinuousShuffle_Checked(object sender, RoutedEventArgs e)
+        {
+            if (ContinuousShuffle.IsChecked == true)
+            {
+                _continuous = true;
+                _songList.Clear();
+                if (!IsFilterEmpty())
+                    UpdateFilter_Clicked(null, null);
+            }
+            else
+                _continuous = false;
+
+            await HandleContinuous();
+        }
+    }
+}

Views/Systray.xaml

@@ -30,11 +30,11 @@
                 <Image Width="16" Height="16" emoji:Image.Source="📻" />
             </MenuItem.Icon>
         </MenuItem>
-        <!--<MenuItem Header="Shuffle" Command="{Binding Shuffle}">
+        <MenuItem Header="Shuffle" Command="{Binding Shuffle}">
             <MenuItem.Icon>
                 <Image Width="16" Height="16" emoji:Image.Source="🔀" />
             </MenuItem.Icon>
-        </MenuItem>-->
+        </MenuItem>
         <MenuItem Header="{x:Static properties:Resources.Settings}" Command="{Binding Settings}">
             <MenuItem.Icon>
                 <Image Width="16" Height="16" emoji:Image.Source="🛠️" />

Views/SystrayViewModel.cs

@@ -71,6 +71,18 @@ namespace unison
             }
         }
 
+        public ICommand Shuffle
+        {
+            get
+            {
+                return new DelegateCommand
+                {
+                    CommandAction = () => ((MainWindow)Application.Current.MainWindow).Shuffle_Clicked(null, null),
+                    CanExecuteFunc = () => true
+                };
+            }
+        }
+
         public ICommand Settings
         {
             get

unison.csproj

@@ -7,7 +7,7 @@
     <ApplicationIcon>Resources\icon-full.ico</ApplicationIcon>
     <Win32Resource></Win32Resource>
     <StartupObject>unison.App</StartupObject>
-    <Version>1.2</Version>
+    <Version>1.3</Version>
     <Company />
     <Authors>Théo Marchal</Authors>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
@@ -47,7 +47,7 @@
     <PackageReference Include="Emoji.Wpf" Version="0.3.3" />
     <PackageReference Include="Hardcodet.NotifyIcon.Wpf" Version="1.1.0" />
     <PackageReference Include="RadioBrowser" Version="0.6.1" />
-	<PackageReference Include="MpcNET" Version="1.3.0" />
+	<PackageReference Include="MpcNET" Version="1.4.0" />
   </ItemGroup>
 
   <ItemGroup>