Added support for DND

src/Discord.Net/API/Client/GatewaySocket/Commands/UpdateStatus.cs

@@ -9,9 +9,13 @@ namespace Discord.API.Client.GatewaySocket
         object IWebSocketMessage.Payload => this;
         bool IWebSocketMessage.IsPrivate => false;
 
-        [JsonProperty("idle_since")]
+        [JsonProperty("afk")]
+        public bool? Afk { get; set; }
+        [JsonProperty("since")]
         public long? IdleSince { get; set; }
         [JsonProperty("game")]
         public Game Game { get; set; }
+        [JsonProperty("status")]
+        public string Status { get; set; }
     }
 }

src/Discord.Net/DiscordClient.cs

@@ -324,8 +324,8 @@ namespace Discord
         public void SetStatus(UserStatus status)
         {
             if (status == null) throw new ArgumentNullException(nameof(status));
-            if (status != UserStatus.Online && status != UserStatus.Idle)
-                throw new ArgumentException($"Invalid status, must be {UserStatus.Online} or {UserStatus.Idle}", nameof(status));
+            if (status != UserStatus.Online && status != UserStatus.Idle && status != UserStatus.DoNotDisturb)
+                throw new ArgumentException($"Invalid status, must be {UserStatus.Online}, {UserStatus.Idle} or {UserStatus.DoNotDisturb}", nameof(status));
 
             Status = status;
             SendStatus();
@@ -360,7 +360,7 @@ namespace Discord
             }
             var socket = GatewaySocket;
             if (socket != null)
-                socket.SendUpdateStatus(Status == UserStatus.Idle ? EpochTime.GetMilliseconds() - (10 * 60 * 1000) : (long?)null, CurrentGame);
+                socket.SendUpdateStatus(Status == UserStatus.Idle ? EpochTime.GetMilliseconds() - (10 * 60 * 1000) : (long?)null, CurrentGame, Status == UserStatus.Idle, Status);
         }
 
         #region Channels

src/Discord.Net/Enums/UserStatus.cs

@@ -8,6 +8,8 @@
 		public static UserStatus Idle { get; } = new UserStatus("idle");
 		/// <summary> User is offline. </summary>
 		public static UserStatus Offline { get; } = new UserStatus("offline");
+		/// <summary> User is busy. </summary>
+		public static UserStatus DoNotDisturb { get; } = new UserStatus("dnd");
 
 		private UserStatus(string value)
 			: base(value) { }
@@ -24,6 +26,8 @@
 					return Idle;
 				case "offline":
 					return Offline;
+				case "dnd":
+					return DoNotDisturb;
 				default:
 					return new UserStatus(value);
 			}

src/Discord.Net/Net/WebSockets/GatewaySocket.cs

@@ -170,11 +170,13 @@ namespace Discord.Net.WebSockets
             => QueueMessage(new ResumeCommand { SessionId = SessionId, Sequence = _lastSequence });
 		public override void SendHeartbeat() 
             => QueueMessage(new HeartbeatCommand());
-		public void SendUpdateStatus(long? idleSince, Game? game) 
+		public void SendUpdateStatus(long? idleSince, Game? game, bool? afk, UserStatus status) 
             => QueueMessage(new UpdateStatusCommand
             {
                 IdleSince = idleSince,
-                Game = game != null ? new APIGame { Name = game.Value.Name, Type = game.Value.Type, Url = game.Value.Url } : null
+                Game = game != null ? new APIGame { Name = game.Value.Name, Type = game.Value.Type, Url = game.Value.Url } : null,
+                Afk = afk,
+                Status = status.Value
             });
 		public void SendUpdateVoice(ulong? serverId, ulong? channelId, bool isSelfMuted, bool isSelfDeafened)
             => QueueMessage(new UpdateVoiceCommand { GuildId = serverId, ChannelId = channelId, IsSelfMuted = isSelfMuted, IsSelfDeafened = isSelfDeafened });