Shuffle system

App.xaml.cs

@@ -9,6 +9,7 @@ namespace unison
         private TaskbarIcon _systray;
         private HotkeyHandler _hotkeys;
         private SnapcastHandler _snapcast;
+        private ShuffleHandler _shuffle;
         private MPDHandler _mpd;
         private UpdateHandler _updater;
 
@@ -30,6 +31,9 @@ namespace unison
             _snapcast = new SnapcastHandler();
             Current.Properties["snapcast"] = _snapcast;
 
+            _shuffle = new ShuffleHandler();
+            Current.Properties["shuffle"] = _shuffle;
+            
             _updater = new UpdateHandler();
             Current.Properties["updater"] = _updater;
 

Handlers/MPDHandler.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
+using System.Linq;
 using System.Net;
 using System.Text.RegularExpressions;
 using System.Threading;
@@ -34,7 +35,7 @@ namespace unison
     public class MPDHandler
     {
         private bool _connected;
-        public string _version;
+        private string _version;
         private int _currentVolume;
         private int _previousVolume;
         private bool _currentRandom;
@@ -43,6 +44,7 @@ namespace unison
         private bool _currentConsume;
         private double _currentTime;
         private double _totalTime;
+        private IEnumerable<IMpdFile> _Playlist;
 
         private MpdStatus _currentStatus;
         private IMpdFile _currentSong;
@@ -65,7 +67,7 @@ namespace unison
         private MpcConnection _commandConnection;
         private IPEndPoint _mpdEndpoint;
 
-        private CancellationTokenSource _cancelCommand;
+        public CancellationTokenSource _cancelCommand;
         private CancellationTokenSource _cancelConnect;
 
         public MPDHandler()
@@ -525,13 +527,27 @@ namespace unison
         public string GetVersion() => _version;
         public Statistics GetStats() => _stats;
         public double GetCurrentTime() => _currentTime;
+        public IEnumerable<IMpdFile> GetPlaylist() => _Playlist;
 
         public bool IsConnected() => _connected;
         public bool IsPlaying() => _currentStatus?.State == MpdState.Play;
 
-        public void Prev() => SendCommand(new PreviousCommand());
+        public bool CanPrevNext = true;
-        public void Next() => SendCommand(new NextCommand());
+
+        public void Prev()
+        {
+            if (CanPrevNext)
+                SendCommand(new PreviousCommand());
+        }
+
+        public void Next()
+        {
+            if (CanPrevNext)
+                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));
@@ -586,27 +602,35 @@ namespace unison
             SendCommand(commandList);
         }
 
+        public async Task QueryPlaylist() => _Playlist = await SafelySendCommandAsync(new PlaylistCommand());
+
+        public int GetPlaylistCount()
+        {
+            if (_Playlist == null)
+                return 0;
+            return _Playlist.ToArray().Count();
+        }
+
         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");
         }
     }
-    }
 }

Handlers/ShuffleHandler.cs

@@ -0,0 +1,108 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using System.Windows;
+using MpcNET;
+using MpcNET.Commands.Database;
+using MpcNET.Commands.Playback;
+using MpcNET.Commands.Queue;
+using MpcNET.Commands.Reflection;
+using MpcNET.Tags;
+using MpcNET.Types;
+using MpcNET.Types.Filters;
+
+namespace unison
+{
+    class ShuffleHandler
+    {
+        private readonly MPDHandler _mpd;
+        public int AddedSongs = 0;
+
+        public List<string> SongList { get; }
+
+        public ShuffleHandler()
+        {
+            SongList = new();
+            _mpd = (MPDHandler)Application.Current.Properties["mpd"];
+        }
+
+        public async Task GetSongsFromFilter(List<IFilter> filter, CancellationToken token)
+        {
+            if (token.IsCancellationRequested)
+                return;
+
+            SongList.Clear();
+
+            int song = _mpd.GetStats().Songs;
+            IEnumerable<IMpdFile> response = await _mpd.SafelySendCommandAsync(new SearchCommand(filter, 0, song + 1));
+            foreach (IMpdFile file in response)
+                SongList.Add(file.Path);
+        }
+
+        public async Task AddToQueueRandom(int SongNumber, CancellationToken token)
+        {
+            if (token.IsCancellationRequested)
+                return;
+
+            int AddedSongs = 0;
+
+            var commandList = new CommandList();
+            int songTotal = _mpd.GetStats().Songs;
+
+            for (int i = 0; i < SongNumber; i++)
+            {
+                int song = new Random().Next(0, songTotal - 1);
+                commandList.Add(new SearchAddCommand(new FilterTag(MpdTags.Title, "", FilterOperator.Contains), song, song + 1));
+                AddedSongs++;
+
+                // play if stopped or unknown state (no queue managing at the moment, so mandatory)
+                if (i == 0 && (_mpd.GetStatus().State != MpdState.Play && _mpd.GetStatus().State != MpdState.Pause))
+                    commandList.Add(new PlayCommand(0));
+            }
+
+            await _mpd.SafelySendCommandAsync(commandList);
+        }
+
+        public async Task AddToQueueFilter(int SongNumber, CancellationToken token)
+        {
+            if (token.IsCancellationRequested)
+                return;
+
+            int AddedSongs = 0;
+
+            // more (or equal) requested songs than available => add everything
+            if (SongNumber >= SongList.Count)
+            {
+                var commandList = new CommandList();
+                foreach (string path in SongList)
+                {
+                    commandList.Add(new AddCommand(path));
+                    AddedSongs++;
+                }
+
+                await _mpd.SafelySendCommandAsync(commandList);
+            }
+            // 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);
+                }
+
+                var commandList = new CommandList();
+                foreach (int index in SongIndex)
+                {
+                    commandList.Add(new AddCommand(SongList[index]));
+                    AddedSongs++;
+                }
+
+                await _mpd.SafelySendCommandAsync(commandList);
+            }
+        }
+    }
+}

Views/MainWindow.xaml

@@ -111,14 +111,15 @@
             </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"/>
@@ -136,12 +137,13 @@
                 <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

@@ -6,7 +6,7 @@ using System.Windows.Threading;
 using System.Windows.Interop;
 using System.Windows.Input;
 using System.Windows.Controls.Primitives;
-using unison.Handlers;
+using System.Diagnostics;
 
 namespace unison
 {
@@ -14,6 +14,7 @@ namespace unison
     {
         private readonly Settings _settingsWin;
         private readonly Radios _radiosWin;
+        private readonly Shuffle _shuffleWin;
         private readonly DispatcherTimer _timer;
         private readonly MPDHandler _mpd;
 
@@ -26,6 +27,7 @@ namespace unison
 
             _settingsWin = new Settings();
             _radiosWin = new Radios();
+            _shuffleWin = new Shuffle();
             _timer = new DispatcherTimer();
             _mpd = (MPDHandler)Application.Current.Properties["mpd"];
 
@@ -47,12 +49,17 @@ namespace unison
         {
             if (_mpd.IsConnected())
             {
+                _mpd.QueryStats();
+                _settingsWin.UpdateStats();
+
                 ConnectionOkIcon.Visibility = Visibility.Visible;
                 ConnectionFailIcon.Visibility = Visibility.Collapsed;
 
                 Snapcast.IsEnabled = true;
                 if (_radiosWin.IsConnected())
                     Radio.IsEnabled = true;
+
+                _shuffleWin.Initialize();
             }
             else
             {
@@ -68,7 +75,7 @@ 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;
@@ -114,6 +121,15 @@ namespace unison
                     _timer.Start();
                 EndTime.Text = FormatSeconds(_mpd.GetCurrentSong().Time);
             }
+
+            Trace.WriteLine("Song changed called!");
+
+            if (_shuffleWin.GetContinuous())
+            {
+                _mpd.CanPrevNext = false;
+                await _shuffleWin.HandleContinuous();
+                _mpd.CanPrevNext = true;
+            }
         }
 
         public void OnStatusChanged(object sender, EventArgs e)
@@ -142,9 +158,6 @@ namespace unison
                     DefaultState();
                 }
             }
-
-            _mpd.QueryStats();
-            _settingsWin.UpdateStats();
         }
 
         private void DefaultState(bool LostConnection = false)
@@ -217,7 +230,6 @@ 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 Random_Clicked(object sender, RoutedEventArgs e) => _mpd.Random();
         public void Repeat_Clicked(object sender, RoutedEventArgs e) => _mpd.Repeat();
         public void Single_Clicked(object sender, RoutedEventArgs e) => _mpd.Single();
@@ -239,6 +251,15 @@ 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

@@ -59,36 +59,6 @@
                     </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">
@@ -190,7 +160,64 @@
                                     </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>

Views/Shuffle.xaml

@@ -0,0 +1,117 @@
+<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" KeyUp="QueryFilterHandler" 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}"/>
+                                <TextBlock x:Name="QueryFilterText" Text="Querying filter..." Margin="15,3,0,0" FontStyle="Italic" Visibility="Collapsed" />
+                            </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" KeyUp="AddToQueueHandler" PreviewTextInput="QueueValidationTextBox" MaxLength="4" Text="15" 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="Adding "/><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 +1,419 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Interop;
+using System.Windows.Media;
+using System.Windows.Input;
+using System.Windows.Threading;
+using System.Linq;
+using System.Text.RegularExpressions;
+using System.Threading;
+using System.Threading.Tasks;
+using MpcNET.Commands.Database;
+using MpcNET.Tags;
+using MpcNET.Types;
+using MpcNET.Types.Filters;
+
+namespace unison
+{
+    public partial class Shuffle : Window
+    {
+        private readonly MPDHandler _mpd;
+        private readonly ShuffleHandler _shuffle;
+
+        List<string> GenreList { get; }
+        List<string> FolderList { get; }
+        List<IFilter> Filters { get; }
+
+        bool _continuous = false;
+
+        public Shuffle()
+        {
+            InitializeComponent();
+            GenreList = new();
+            FolderList = new();
+            Filters = new();
+            SongFilterNumber.Text = "0";
+
+            _mpd = (MPDHandler)Application.Current.Properties["mpd"];
+            _shuffle = (ShuffleHandler)Application.Current.Properties["shuffle"];
+        }
+
+        public void Initialize()
+        {
+            ListGenre(_mpd._cancelCommand.Token);
+            ListFolder(_mpd._cancelCommand.Token);
+        }
+
+        public async void ListGenre(CancellationToken token)
+        {
+            if (GenreList.Count != 0)
+                return;
+
+            if (token.IsCancellationRequested)
+                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(CancellationToken token)
+        {
+            if (FolderList.Count != 0)
+                return;
+
+            if (token.IsCancellationRequested)
+                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 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";
+            _shuffle.SongList.Clear();
+        }
+
+        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 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)
+        {
+            SongFilterNumber.Text = "0";
+        }
+
+        private async void UpdateFilter_Clicked(object sender, RoutedEventArgs e)
+        {
+            QueryFilterText.Visibility = Visibility.Visible;
+            await UpdateFilter();
+            TimedText(QueryFilterText, 1);
+        }
+        
+        private void TimedText(TextBlock textBlock, int time)
+        {
+            DispatcherTimer Timer = new DispatcherTimer();
+            Timer.Interval = TimeSpan.FromSeconds(time);
+            Timer.Tick += (sender, args) =>
+            {
+                Timer.Stop();
+                textBlock.Visibility = Visibility.Collapsed;
+            };
+            Timer.Start();
+        }
+
+        private async Task UpdateFilter()
+        {
+            Filters.Clear();
+
+            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 Task.Run(async () =>
+                    {
+                        await _shuffle.GetSongsFromFilter(Filters, _mpd._cancelCommand.Token);
+                    });
+                    SongFilterPanel.Visibility = Visibility.Visible;
+                    SongFilterNumber.Text = _shuffle.SongList.Count.ToString();
+                }
+            }
+        }
+
+        private void QueryFilterHandler(object sender, KeyEventArgs e)
+        {
+            if (e.Key == Key.Return)
+                UpdateFilter_Clicked(null, null);
+        }
+
+        private void QueueValidationTextBox(object sender, TextCompositionEventArgs e)
+        {
+            Regex regex = new Regex("[^0-9]+");
+            e.Handled = regex.IsMatch(e.Text);
+        }
+
+        private void QueueValidationNumber()
+        {
+            int Number;
+            try
+            {
+                Number = int.Parse(SongNumber.Text);
+            }
+            catch (Exception)
+            {
+                return;
+            }
+
+            if (Number < 1)
+                SongNumber.Text = "1";
+            if (IsFilterEmpty())
+            {
+                if (Number > 100)
+                    SongNumber.Text = "100";
+            }
+            else
+            {
+                if (Number > 1000)
+                    SongNumber.Text = "1000";
+            }
+        }
+
+        private async void AddToQueue()
+        {
+            if (_mpd.GetStats() == null)
+                return;
+
+            await UpdateFilter();
+            QueueValidationNumber();
+
+            // TODO
+            // Added => Adding songs...
+            // to
+            // Added X songs! (display for 5 seconds)
+
+            NumberAddedSongs.Text = SongNumber.Text;
+            SearchStatus.Visibility = Visibility.Visible;
+
+            int Num = int.Parse(SongNumber.Text);
+            await AddToQueue_Internal(Num);
+
+            TimedText(SearchStatus, 2);
+        }
+
+        private async Task AddToQueue_Internal(int Num)
+        {
+            if (IsFilterEmpty())
+            {
+                await Task.Run(async () =>
+                {
+                    await _shuffle.AddToQueueRandom(Num, _mpd._cancelCommand.Token);
+                });
+            }
+            else
+            {
+                await Task.Run(async () =>
+                {
+                    await _shuffle.AddToQueueFilter(Num, _mpd._cancelCommand.Token);
+                });
+            }
+        }
+
+        private void AddToQueueHandler(object sender, KeyEventArgs e)
+        {
+            if (e.Key == Key.Return)
+                AddToQueue();
+        }
+
+        private void AddToQueue_Clicked(object sender, RoutedEventArgs e)
+        {
+            AddToQueue();
+        }
+
+        public bool GetContinuous()
+        {
+            return _continuous;
+        }
+
+        public async Task HandleContinuous()
+        {
+            if (!_continuous)
+                return;
+
+            int PlaylistLength = _mpd.GetStatus().PlaylistLength;
+            int Num = 10 - PlaylistLength;
+            if (Num < 1)
+                return;
+
+            await UpdateFilter();           
+            await AddToQueue_Internal(Num);
+        }
+
+        private async void ContinuousShuffle_Checked(object sender, RoutedEventArgs e)
+        {
+            if (ContinuousShuffle.IsChecked == true)
+                _continuous = true;
+            else
+                _continuous = false;
+
+            if (_mpd.GetStatus().PlaylistLength < 10)
+                await HandleContinuous();
+        }
+
+        private void Window_Closing(object sender, CancelEventArgs e)
+        {
+            e.Cancel = true;
+            WindowState = WindowState.Minimized;
+            Hide();
+        }
+
+        public void InitHwnd()
+        {
+            WindowInteropHelper helper = new(this);
+            helper.EnsureHandle();
+        }
+    }
+}

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