Better working continuous shuffle

Handlers/MPDHandler.cs

@@ -497,21 +497,23 @@ 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;
 
-            _stats.Songs = int.Parse(response["songs"]);
-            _stats.Albums = int.Parse(response["albums"]);
-            _stats.Artists = int.Parse(response["artists"]);
+            _stats.Songs = int.Parse(Response["songs"]);
+            _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");
         }
     }

Views/MainWindow.xaml.cs

@@ -65,6 +65,7 @@ namespace unison
             Connection.Text = $"{Properties.Settings.Default.mpd_host}:{Properties.Settings.Default.mpd_port}";
 
             _shuffleWin.ListGenre();
+            _shuffleWin.ListFolder();
         }
 
         public async void OnSongChanged(object sender, EventArgs e)

Views/Settings.xaml

@@ -57,8 +57,8 @@
                             <Grid>
                                 <StackPanel>
                                     <StackPanel Orientation="Horizontal">
-                                        <TextBlock Text="{x:Static properties:Resources.Settings_VolumeOffset}" TextWrapping="Wrap" Margin="0,2,0,0"/>
-                                        <TextBox x:Name="VolumeOffset" TextWrapping="Wrap" Width="25" PreviewTextInput="NumberValidationTextBox" Margin="8,2,0,0"/>
+                                        <TextBox x:Name="VolumeOffset" TextWrapping="Wrap" Width="25" PreviewTextInput="NumberValidationTextBox" Margin="0,2,0,0"/>
+                                        <TextBlock Text="{x:Static properties:Resources.Settings_VolumeOffset}" TextWrapping="Wrap" Margin="5,2,0,0"/>
                                     </StackPanel>
                                     <Grid MinWidth="300" Margin="0,5,0,0">
                                         <Grid.ColumnDefinitions>
@@ -137,7 +137,11 @@
                             </GroupBox.Header>
                             <Grid MaxWidth="500">
                                 <StackPanel>
-                                    <TextBlock TextWrapping="Wrap">
+                                    <StackPanel Orientation="Horizontal">
+                                        <TextBox TextWrapping="Wrap" Width="25" PreviewTextInput="NumberValidationTextBox" Margin="0,2,0,0"/>
+                                        <TextBlock Text="Prevent repetition rate (0-100%)" TextWrapping="Wrap" Margin="5,2,0,0"/>
+                                    </StackPanel>
+                                    <TextBlock TextWrapping="Wrap" Margin="0,10,0,0">
                                         <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">Continuous shuffle</Run><LineBreak/>

Views/Shuffle.xaml

@@ -22,31 +22,37 @@
                         <StackPanel Orientation="Horizontal">
                             <StackPanel Orientation="Vertical">
                                 <TextBlock Text="Song" Margin="0,0,0,2"/>
-                                <TextBox x:Name="Song" Width="240"/>
+                                <TextBox x:Name="Song" Width="240" Margin="5,0,0,0"/>
                             </StackPanel>
 
                             <StackPanel Orientation="Vertical" Margin="20,0,0,0">
                                 <TextBlock Text="Artist" Margin="0,0,0,2"/>
-                                <TextBox x:Name="Artist" Width="240"/>
+                                <TextBox x:Name="Artist" Width="240" Margin="5,0,0,0"/>
                             </StackPanel>
                         </StackPanel>
                         <StackPanel Orientation="Horizontal" Margin="0,5,0,0">
                             <StackPanel Orientation="Vertical">
                                 <TextBlock Text="Album" Margin="0,0,0,2"/>
-                                <TextBox x:Name="Album" Width="240"/>
+                                <TextBox x:Name="Album" Width="240" Margin="5,0,0,0"/>
                             </StackPanel>
 
                             <StackPanel Orientation="Vertical" Margin="20,0,0,0">
                                 <TextBlock Text="Year" Margin="0,0,0,2"/>
-                                <TextBox x:Name="Year" Width="240"/>
+                                <TextBox x:Name="Year" Width="240" Margin="5,0,0,0"/>
                             </StackPanel>
                         </StackPanel>
                         <StackPanel Orientation="Horizontal" Margin="0,5,0,5">
                             <StackPanel Orientation="Vertical">
                                 <TextBlock Text="Genre" Margin="0,0,0,2"/>
-                                <ComboBox x:Name="Genre" SelectedIndex="0" Width="240" ScrollViewer.CanContentScroll="False"/>
+                                <ComboBox x:Name="Genre" SelectedIndex="0" Width="240" ScrollViewer.CanContentScroll="False" Margin="5,0,0,0"/>
                             </StackPanel>
-                            <Button Content="Reset" Click="Reset_Clicked" Padding="5, 2" VerticalAlignment="Bottom" HorizontalAlignment="Left" Margin="20,0,0,0" FocusVisualStyle="{x:Null}"/>
+                            <StackPanel Orientation="Vertical" Margin="20,0,0,0">
+                                <TextBlock Text="Directory" Margin="0,0,0,2" TextDecorations="{x:Null}"/>
+                                <ComboBox x:Name="Directory" SelectedIndex="0" Width="240" ScrollViewer.CanContentScroll="False" Margin="5,0,0,0" IsEnabled="False"/>
+                            </StackPanel>
+                        </StackPanel>
+                        <StackPanel Orientation="Horizontal" Margin="0,5,0,5">
+                            <Button Content="Reset" Click="Reset_Clicked" Padding="5, 2" VerticalAlignment="Bottom" HorizontalAlignment="Left" FocusVisualStyle="{x:Null}"/>
                         </StackPanel>
                         <StackPanel x:Name="SongFilterPanel" Margin="0,5,0,0" Visibility="Collapsed">
                             <TextBlock>

Views/Shuffle.xaml.cs

@@ -10,8 +10,6 @@ using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Interop;
 
-// https://mpd.readthedocs.io/en/stable/protocol.html#binary
-
 namespace unison
 {
     public partial class Shuffle : Window
@@ -33,6 +31,12 @@ namespace unison
 
         public void AddContinuousSongs()
         {
+            if (Song.Text.Length == 0 && Artist.Text.Length == 0 && Album.Text.Length == 0 && Year.Text.Length == 0 && Genre.SelectedIndex == 0)
+            {
+                ContinuousShuffle_AddToQueueRandom();
+                return;
+            }
+
             int AddedSongs = 0;
             NumberAddedSongs.Text = AddedSongs.ToString();
             SearchStatus.Visibility = Visibility.Visible;
@@ -55,17 +59,32 @@ namespace unison
             if (Genre.Items.Count == 0)
             {
                 _mpd = (MPDHandler)Application.Current.Properties["mpd"];
-                Genre.Items.Add("");
                 List<string> Response = await _mpd.SafelySendCommandAsync(new ListCommand(MpdTags.Genre, null, null));
+
+                if (Response.Count > 0)
+                {
+                    Genre.Items.Add("");
                     foreach (var genre in Response)
                         Genre.Items.Add(genre);
                 }
             }
+        }
 
         public async void ListFolder()
+        {
+            if (Directory.Items.Count == 0)
             {
                 _mpd = (MPDHandler)Application.Current.Properties["mpd"];
-            //await _mpd.SafelySendCommandAsync(new )
+                List<string> Response = await _mpd.SafelySendCommandAsync(new ListFilesCommand());
+
+                if (Response.Count > 0)
+                {
+                    Directory.Items.Add("");
+                    for (int i = 0; i < Response.Count; i++)
+                        if (i % 2 != 1)
+                            Directory.Items.Add(Response[i]);
+                }
+            }
         }
 
         private void Window_Closing(object sender, CancelEventArgs e)
@@ -97,7 +116,14 @@ namespace unison
                 AddToQueueGroup.IsEnabled = false;
                 _continuous = true;
                 _songList.Clear();
-                await GetSongsFromFilter();
+                if (Song.Text.Length == 0 && Artist.Text.Length == 0 && Album.Text.Length == 0 && Year.Text.Length == 0 && Genre.SelectedIndex == 0)
+                {
+                }
+                else
+                {
+                    /*await*/
+                    GetSongsFromFilter();
+                }
             }
             else
             {
@@ -106,8 +132,30 @@ namespace unison
             }
         }
 
-        // search "((title contains ''))" window 38669:38670
-        // listfiles
+        private async void ContinuousShuffle_AddToQueueRandom()
+        {
+            for (int i = 0; i < 2; 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(MpdTags.Title, "", 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);
+                }
+            }
+
+            SearchStatus.Visibility = Visibility.Collapsed;
+        }
 
         private async void AddToQueueRandom()
         {
@@ -144,6 +192,7 @@ namespace unison
         private async Task GetSongsFromFilter()
         {
             _songList.Clear();
+            SongFilterPanel.Visibility = Visibility.Visible;
 
             int song = _mpd.GetStats().Songs;
 
@@ -160,6 +209,13 @@ namespace unison
             // 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;
+            }
+
             foreach (string file in value)
             {
                 int start = 0;
@@ -167,6 +223,8 @@ namespace unison
                 string filePath = file.Substring(start, end - start);
 
                 _songList.Add(filePath);
+
+                SongFilterNumber.Text = _songList.Count.ToString();
             }
 
             // remove characters from first file
@@ -176,8 +234,8 @@ namespace unison
             SongFilterNumber.Text = _songList.Count.ToString();
 
             // DEBUG
-            foreach (var a in _songList)
-                Debug.WriteLine(a);
+            //foreach (var a in _songList)
+            //    Debug.WriteLine(a);
             Debug.WriteLine("number of songs found: " + _songList.Count);
             Debug.WriteLine("number of songs requested: " + int.Parse(SongNumber.Text));
         }