Added playlist view and initial playlist view logic.

Harmonia.UI/ViewModels/PlaybackBarViewModel.cs

@@ -7,6 +7,7 @@ using Harmonia.Core.Models;
 using Harmonia.Core.Player;
 using Harmonia.Core.Playlists;
 using Harmonia.Core.Scanner;
+using Harmonia.UI.Models;
 using System;
 using System.IO;
 using System.Linq;
@@ -118,6 +119,57 @@ public partial class PlaybackBarViewModel : ViewModelBase, IDisposable
         }
     }
 
+    public double Volume
+    {
+        get
+        {
+            return _audioPlayer.Volume;
+        }
+        set
+        {
+            if (IsMuted)
+                IsMuted = false;
+
+            _audioPlayer.Volume = value;
+            OnPropertyChanged();
+            OnPropertyChanged(nameof(VolumeState));
+        }
+    }
+
+    public bool IsMuted
+    {
+        get
+        {
+            return _audioPlayer.IsMuted;
+        }
+        set
+        {
+            _audioPlayer.IsMuted = value;
+            OnPropertyChanged();
+            OnPropertyChanged(nameof(VolumeState));
+        }
+    }
+
+    public VolumeState VolumeState
+    {
+        get
+        {
+            if (IsMuted)
+                return VolumeState.Muted;
+
+            if (Volume == 0)
+                return VolumeState.Off;
+
+            if (Volume < .33)
+                return VolumeState.Low;
+
+            if (Volume < .66)
+                return VolumeState.Medium;
+
+            return VolumeState.High;
+        }
+    }
+
     public bool IsRandom
     {
         get
@@ -131,11 +183,27 @@ public partial class PlaybackBarViewModel : ViewModelBase, IDisposable
         }
     }
 
+    public RepeatState RepeatState
+    {
+        get
+        {
+            return _audioPlayer.RepeatState;
+        }
+        private set
+        {
+            _audioPlayer.RepeatState = value;
+            OnPropertyChanged();
+        }
+    }
+
     public ICommand PlaySongCommand => new RelayCommand(Play);
     public ICommand PauseSongCommand => new RelayCommand(Pause);
     public ICommand StopSongCommand => new RelayCommand(Stop);
     public ICommand PreviousSongCommand => new RelayCommand(Previous);
     public ICommand NextSongCommand => new RelayCommand(Next);
+    public ICommand ToggleMuteCommand => new RelayCommand(ToggleMute);
+    public ICommand ToggleRandomizerCommand => new RelayCommand(ToggleRandomizer);
+    public ICommand ToggleRepeatCommand => new RelayCommand(ToggleRepeat);
 
     public PlaybackBarViewModel(IAudioPlayer audioPlayer, IAudioImageCache audioImageCache, IPlaylistRepository playlistRepository, IAudioFileScanner audioFileScanner)
     {
@@ -219,6 +287,32 @@ public partial class PlaybackBarViewModel : ViewModelBase, IDisposable
         _audioPlayer.NextAsync();
     }
 
+    public void ToggleMute()
+    {
+        IsMuted = !IsMuted;
+    }
+
+    public void ToggleRandomizer()
+    {
+        IsRandom = !IsRandom;
+    }
+
+    public void ToggleRepeat()
+    {
+        RepeatState = GetNextRepeatState();
+    }
+
+    private RepeatState GetNextRepeatState()
+    {
+        return _audioPlayer.RepeatState switch
+        {
+            RepeatState.Off => RepeatState.RepeatAll,
+            RepeatState.RepeatAll => RepeatState.RepeatOne,
+            RepeatState.RepeatOne => RepeatState.Off,
+            _ => _audioPlayer.RepeatState,
+        };
+    }
+
     public void Dispose()
     {
         SongImageSource?.Dispose();