Added message acknowledgement

src/Discord.Net/API/Endpoints.cs

@@ -19,6 +19,7 @@
 		public static string ChannelMessages(string channelId) => $"channels/{channelId}/messages";
 		public static string ChannelMessages(string channelId, int limit) => $"channels/{channelId}/messages?limit={limit}";
 		public static string ChannelMessage(string channelId, string msgId) => $"channels/{channelId}/messages/{msgId}";
+		public static string ChannelMessageAck(string channelId, string msgId) => $"channels/{channelId}/messages/{msgId}/ack";
 		public static string ChannelInvites(string channelId) => $"channels/{channelId}/invites";
         public static string ChannelPermission(string channelId, string userOrRoleId) => $"channels/{channelId}/permissions/{userOrRoleId}";
 
@@ -44,7 +45,6 @@
 		public const string VoiceIce = "voice/ice";
 
 		public const string StatusActiveMaintenance = "scheduled-maintenances/active.json";
-		public const string StatusUnresolvedMaintenance = "scheduled-maintenances/unresolved.json";
 		public const string StatusUpcomingMaintenance = "scheduled-maintenances/upcoming.json";
 	}
 }

src/Discord.Net/DiscordAPIClient.cs

@@ -105,10 +105,6 @@ namespace Discord
 		}
 
 		//Incidents
-		public Task<GetIncidentsResponse> GetUnresolvedIncidents()
-		{
-			return _rest.Get<GetIncidentsResponse>(Endpoints.StatusUnresolvedMaintenance);
-		}
 		public Task<GetIncidentsResponse> GetActiveIncidents()
 		{
 			return _rest.Get<GetIncidentsResponse>(Endpoints.StatusActiveMaintenance);
@@ -207,7 +203,14 @@ namespace Discord
 			var request = new EditMessageRequest { Content = message, Mentions = mentions };
 			return _rest.Patch<EditMessageResponse>(Endpoints.ChannelMessage(channelId, messageId), request);
 		}
-		public Task SendIsTyping(string channelId)
+		public Task AckMessage(string messageId, string channelId)
+		{
+			if (messageId == null) throw new ArgumentNullException(nameof(messageId));
+			if (channelId == null) throw new ArgumentNullException(nameof(channelId));
+
+			return _rest.Post(Endpoints.ChannelMessageAck(channelId, messageId));
+		}
+        public Task SendIsTyping(string channelId)
 		{
 			if (channelId == null) throw new ArgumentNullException(nameof(channelId));
 

src/Discord.Net/DiscordClient.cs

@@ -534,15 +534,17 @@ namespace Discord
 							var data = e.Payload.ToObject<MessageCreateEvent>(_serializer);
 							Message msg = null;
 
-							bool wasLocal = _config.UseMessageQueue && data.Author.Id == CurrentUserId && data.Nonce != null;
-							if (wasLocal)
+							bool isAuthor = data.Author.Id == CurrentUserId;
+                            bool hasFinishedSending = false;
+							if (_config.UseMessageQueue && isAuthor && data.Nonce != null)
 							{
 								msg = _messages.Remap("nonce" + data.Nonce, data.Id);
 								if (msg != null)
 								{
 									msg.IsQueued = false;
 									msg.Id = data.Id;
-								}
+									hasFinishedSending = true;
+                                }
 							}
 
 							if (msg == null)
@@ -564,7 +566,11 @@ namespace Discord
 										member.UpdateActivity(data.Timestamp);
 								}
 							}
-							if (wasLocal)
+
+							if (_config.AckMessages && isAuthor)
+								await _api.AckMessage(data.Id, data.ChannelId);
+
+							if (hasFinishedSending)
 								RaiseMessageSent(msg);
 							RaiseMessageCreated(msg);
 						}

src/Discord.Net/DiscordClientConfig.cs

@@ -63,6 +63,9 @@ namespace Discord
 		/// <summary> (Experimental) Maintains the LastActivity property for users, showing when they last made an action (sent message, joined server, typed, etc). </summary>
 		public bool TrackActivity { get { return _trackActivity; } set { SetValue(ref _trackActivity, value); } }
 		private bool _trackActivity = true;
+		/// <summary> (Experimental) Acknowledges all incoming messages so that they appear read. </summary>
+		public bool AckMessages { get { return _ackMessages; } set { SetValue(ref _ackMessages, value); } }
+		private bool _ackMessages = false;
 
 		//Internals
 		internal bool VoiceOnly { get { return _voiceOnly; } set { SetValue(ref _voiceOnly, value); } }