Track rule reading in database, don't show popup locally (#7278)

Content.Shared/Info/SharedRulesManager.cs

@@ -1,12 +1,13 @@
-using JetBrains.Annotations;
-using Lidgren.Network;
+using Lidgren.Network;
 using Robust.Shared.Network;
 
 namespace Content.Shared.Info;
 
 public abstract class SharedRulesManager
 {
-    [UsedImplicitly]
+    /// <summary>
+    ///     Sent by the server to show the rules to the client instantly.
+    /// </summary>
     public sealed class ShowRulesPopupMessage : NetMessage
     {
         public override MsgGroups MsgGroup => MsgGroups.Command;
@@ -23,4 +24,36 @@ public abstract class SharedRulesManager
             buffer.Write(PopupTime);
         }
     }
+
+    /// <summary>
+    ///     Sent by the server when the client needs to display the rules on join.
+    /// </summary>
+    public sealed class ShouldShowRulesPopupMessage : NetMessage
+    {
+        public override MsgGroups MsgGroup => MsgGroups.Command;
+
+        public override void ReadFromBuffer(NetIncomingMessage buffer)
+        {
+        }
+
+        public override void WriteToBuffer(NetOutgoingMessage buffer)
+        {
+        }
+    }
+
+    /// <summary>
+    ///     Sent by the client when it has accepted the rules.
+    /// </summary>
+    public sealed class RulesAcceptedMessage : NetMessage
+    {
+        public override MsgGroups MsgGroup => MsgGroups.Command;
+
+        public override void ReadFromBuffer(NetIncomingMessage buffer)
+        {
+        }
+
+        public override void WriteToBuffer(NetOutgoingMessage buffer)
+        {
+        }
+    }
 }