8 files changed, 82 insertions, 10 deletions
diff --git a/MediaBrowser.Model/Session/ClientCapabilities.cs b/MediaBrowser.Model/Session/ClientCapabilities.cs
index 51db66d21..a85e6ff2a 100644
--- a/MediaBrowser.Model/Session/ClientCapabilities.cs
+++ b/MediaBrowser.Model/Session/ClientCapabilities.cs
@@ -10,24 +10,28 @@ namespace MediaBrowser.Model.Session
     {
         public string[] PlayableMediaTypes { get; set; }
 
-        public string[] SupportedCommands { get; set; }
+        public GeneralCommandType[] SupportedCommands { get; set; }
 
         public bool SupportsMediaControl { get; set; }
+
         public bool SupportsContentUploading { get; set; }
+
         public string MessageCallbackUrl { get; set; }
 
         public bool SupportsPersistentIdentifier { get; set; }
+
         public bool SupportsSync { get; set; }
 
         public DeviceProfile DeviceProfile { get; set; }
 
         public string AppStoreUrl { get; set; }
+
         public string IconUrl { get; set; }
 
         public ClientCapabilities()
         {
             PlayableMediaTypes = Array.Empty<string>();
-            SupportedCommands = Array.Empty<string>();
+            SupportedCommands = Array.Empty<GeneralCommandType>();
             SupportsPersistentIdentifier = true;
         }
     }
diff --git a/MediaBrowser.Model/Session/GeneralCommand.cs b/MediaBrowser.Model/Session/GeneralCommand.cs
index 9794bd292..77bb6bcf7 100644
--- a/MediaBrowser.Model/Session/GeneralCommand.cs
+++ b/MediaBrowser.Model/Session/GeneralCommand.cs
@@ -8,7 +8,7 @@ namespace MediaBrowser.Model.Session
 {
     public class GeneralCommand
     {
-        public string Name { get; set; }
+        public GeneralCommandType Name { get; set; }
 
         public Guid ControllingUserId { get; set; }
 
diff --git a/MediaBrowser.Model/Session/GeneralCommandType.cs b/MediaBrowser.Model/Session/GeneralCommandType.cs
index 5a9042d5f..c58fa9a6b 100644
--- a/MediaBrowser.Model/Session/GeneralCommandType.cs
+++ b/MediaBrowser.Model/Session/GeneralCommandType.cs
@@ -43,6 +43,11 @@ namespace MediaBrowser.Model.Session
         Guide = 32,
         ToggleStats = 33,
         PlayMediaSource = 34,
-        PlayTrailers = 35
+        PlayTrailers = 35,
+        SetShuffleQueue = 36,
+        PlayState = 37,
+        PlayNext = 38,
+        ToggleOsdMenu = 39,
+        Play = 40
     }
 }
diff --git a/MediaBrowser.Model/Session/PlayRequest.cs b/MediaBrowser.Model/Session/PlayRequest.cs
index 62b68b49e..6a66465a2 100644
--- a/MediaBrowser.Model/Session/PlayRequest.cs
+++ b/MediaBrowser.Model/Session/PlayRequest.cs
@@ -2,12 +2,11 @@
 #pragma warning disable CS1591
 
 using System;
-using MediaBrowser.Model.Services;
 
 namespace MediaBrowser.Model.Session
 {
     /// <summary>
-    /// Class PlayRequest
+    /// Class PlayRequest.
     /// </summary>
     public class PlayRequest
     {
@@ -15,21 +14,18 @@ namespace MediaBrowser.Model.Session
         /// Gets or sets the item ids.
         /// </summary>
         /// <value>The item ids.</value>
-        [ApiMember(Name = "ItemIds", Description = "The ids of the items to play, comma delimited", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "POST", AllowMultiple = true)]
         public Guid[] ItemIds { get; set; }
 
         /// <summary>
-        /// Gets or sets the start position ticks that the first item should be played at
+        /// Gets or sets the start position ticks that the first item should be played at.
         /// </summary>
         /// <value>The start position ticks.</value>
-        [ApiMember(Name = "StartPositionTicks", Description = "The starting position of the first item.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "POST")]
         public long? StartPositionTicks { get; set; }
 
         /// <summary>
         /// Gets or sets the play command.
         /// </summary>
         /// <value>The play command.</value>
-        [ApiMember(Name = "PlayCommand", Description = "The type of play command to issue (PlayNow, PlayNext, PlayLast). Clients who have not yet implemented play next and play last may play now.", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "POST")]
         public PlayCommand PlayCommand { get; set; }
 
         /// <summary>
@@ -39,8 +35,11 @@ namespace MediaBrowser.Model.Session
         public Guid ControllingUserId { get; set; }
 
         public int? SubtitleStreamIndex { get; set; }
+
         public int? AudioStreamIndex { get; set; }
+
         public string MediaSourceId { get; set; }
+
         public int? StartIndex { get; set; }
     }
 }
diff --git a/MediaBrowser.Model/Session/PlaybackProgressInfo.cs b/MediaBrowser.Model/Session/PlaybackProgressInfo.cs
index 6b4cfe4f0..73dbe6a2d 100644
--- a/MediaBrowser.Model/Session/PlaybackProgressInfo.cs
+++ b/MediaBrowser.Model/Session/PlaybackProgressInfo.cs
@@ -88,16 +88,19 @@ namespace MediaBrowser.Model.Session
         /// </summary>
         /// <value>The play method.</value>
         public PlayMethod PlayMethod { get; set; }
+
         /// <summary>
         /// Gets or sets the live stream identifier.
         /// </summary>
         /// <value>The live stream identifier.</value>
         public string LiveStreamId { get; set; }
+
         /// <summary>
         /// Gets or sets the play session identifier.
         /// </summary>
         /// <value>The play session identifier.</value>
         public string PlaySessionId { get; set; }
+
         /// <summary>
         /// Gets or sets the repeat mode.
         /// </summary>
@@ -105,6 +108,7 @@ namespace MediaBrowser.Model.Session
         public RepeatMode RepeatMode { get; set; }
 
         public QueueItem[] NowPlayingQueue { get; set; }
+
         public string PlaylistItemId { get; set; }
     }
 
@@ -118,6 +122,7 @@ namespace MediaBrowser.Model.Session
     public class QueueItem
     {
         public Guid Id { get; set; }
+
         public string PlaylistItemId { get; set; }
     }
 }
diff --git a/MediaBrowser.Model/Session/PlaybackStopInfo.cs b/MediaBrowser.Model/Session/PlaybackStopInfo.cs
index b0827ac99..aa29bb249 100644
--- a/MediaBrowser.Model/Session/PlaybackStopInfo.cs
+++ b/MediaBrowser.Model/Session/PlaybackStopInfo.cs
@@ -62,6 +62,7 @@ namespace MediaBrowser.Model.Session
         public string NextMediaType { get; set; }
 
         public string PlaylistItemId { get; set; }
+
         public QueueItem[] NowPlayingQueue { get; set; }
     }
 }
diff --git a/MediaBrowser.Model/Session/SessionMessageType.cs b/MediaBrowser.Model/Session/SessionMessageType.cs
new file mode 100644
index 000000000..23c41026d
--- /dev/null
+++ b/MediaBrowser.Model/Session/SessionMessageType.cs
@@ -0,0 +1,50 @@
+#pragma warning disable CS1591
+
+namespace MediaBrowser.Model.Session
+{
+    /// <summary>
+    /// The different kinds of messages that are used in the WebSocket api.
+    /// </summary>
+    public enum SessionMessageType
+    {
+        // Server -> Client
+        ForceKeepAlive,
+        GeneralCommand,
+        UserDataChanged,
+        Sessions,
+        Play,
+        SyncPlayCommand,
+        SyncPlayGroupUpdate,
+        PlayState,
+        RestartRequired,
+        ServerShuttingDown,
+        ServerRestarting,
+        LibraryChanged,
+        UserDeleted,
+        UserUpdated,
+        SeriesTimerCreated,
+        TimerCreated,
+        SeriesTimerCancelled,
+        TimerCancelled,
+        RefreshProgress,
+        ScheduledTaskEnded,
+        PackageInstallationCancelled,
+        PackageInstallationFailed,
+        PackageInstallationCompleted,
+        PackageInstalling,
+        PackageUninstalled,
+        ActivityLogEntry,
+        ScheduledTasksInfo,
+
+        // Client -> Server
+        ActivityLogEntryStart,
+        ActivityLogEntryStop,
+        SessionsStart,
+        SessionsStop,
+        ScheduledTasksInfoStart,
+        ScheduledTasksInfoStop,
+
+        // Shared
+        KeepAlive,
+    }
+}
diff --git a/MediaBrowser.Model/Session/TranscodingInfo.cs b/MediaBrowser.Model/Session/TranscodingInfo.cs
index d6dc83413..e832c2f6f 100644
--- a/MediaBrowser.Model/Session/TranscodingInfo.cs
+++ b/MediaBrowser.Model/Session/TranscodingInfo.cs
@@ -8,17 +8,25 @@ namespace MediaBrowser.Model.Session
     public class TranscodingInfo
     {
         public string AudioCodec { get; set; }
+
         public string VideoCodec { get; set; }
+
         public string Container { get; set; }
+
         public bool IsVideoDirect { get; set; }
+
         public bool IsAudioDirect { get; set; }
+
         public int? Bitrate { get; set; }
 
         public float? Framerate { get; set; }
+
         public double? CompletionPercentage { get; set; }
 
         public int? Width { get; set; }
+
         public int? Height { get; set; }
+
         public int? AudioChannels { get; set; }
 
         public TranscodeReason[] TranscodeReasons { get; set; }