AutoMod custom block message (#2613)

src/Discord.Net.Core/Entities/Guilds/AutoModeration/AutoModRuleAction.cs

@@ -21,16 +21,23 @@ namespace Discord
         /// </summary>
         public ulong? ChannelId { get; }
 
+        /// <summary>
+        ///     Gets the custom message that will be shown to members whenever their message is blocked.
+        ///     <see langword="null"/> if no message has been set.
+        /// </summary>
+        public Optional<string> CustomMessage { get; set; }
+
         /// <summary>
         ///     Gets the duration of which a user will be timed out for breaking this rule. <see langword="null"/> if no timeout duration has been provided.
         /// </summary>
         public TimeSpan? TimeoutDuration { get; }
 
-        internal AutoModRuleAction(AutoModActionType type, ulong? channelId, int? duration)
+        internal AutoModRuleAction(AutoModActionType type, ulong? channelId, int? duration, string customMessage)
         {
             Type = type;
             ChannelId = channelId;
             TimeoutDuration = duration.HasValue ? TimeSpan.FromSeconds(duration.Value) : null;
+            CustomMessage = customMessage;
         }
     }
 }

src/Discord.Net.Core/Entities/Guilds/AutoModeration/AutoModRuleProperties.cs

@@ -66,6 +66,12 @@ namespace Discord
         /// </summary>
         public const int MaxTimeoutSeconds = 2419200;
 
+        /// <summary>
+        ///     Returns the max custom message length AutoMod rule action allowed by Discord.
+        /// </summary>
+        public const int MaxCustomBlockMessageLength = 50;
+
+
         /// <summary>
         ///     Gets or sets the name for the rule.
         /// </summary>
@@ -146,6 +152,11 @@ namespace Discord
         ///     Gets or sets the duration of which a user will be timed out for breaking this rule.
         /// </summary>
         public TimeSpan? TimeoutDuration { get; set; }
+
+        /// <summary>
+        ///     Gets or sets the custom message that will be shown to members whenever their message is blocked.
+        /// </summary>
+        public Optional<string> CustomMessage { get; set; }
     }
 
 }