Display reason why command cannot be ran

src/Commands/BaseCommand.cs

@@ -57,10 +57,15 @@ internal abstract class BaseCommand
     internal virtual bool ShowCommand() => true;
 
     /// <summary>
-    /// Determines whether this command should be shown in suggestions.
+    /// Determines whether this command can be executed based on current conditions.
     /// </summary>
-    /// <returns>True if the command should be shown in suggestions; otherwise, false.</returns>
-    internal virtual bool ShowSuggestion() => ShowCommand();
+    /// <param name="reason">When this method returns, contains the reason why the command cannot be run if it returns false; otherwise, an empty string.</param>
+    /// <returns>True if the command can be executed; otherwise, false.</returns>
+    internal virtual bool CanRunCommand(out string reason)
+    {
+        reason = string.Empty;
+        return true;
+    }
 
     /// <summary>
     /// Executes the command.

src/Commands/DumpCommand.cs

@@ -1,5 +1,5 @@
-using BetterAmongUs.Data;
-using BetterAmongUs.Attributes;
+using BetterAmongUs.Attributes;
+using BetterAmongUs.Data;
 using BetterAmongUs.Modules;
 
 namespace BetterAmongUs.Commands;
@@ -9,7 +9,17 @@ internal sealed class DumpCommand : BaseCommand
 {
     internal override string Name => "dump";
     internal override string Description => "Dump the entire log to the user's desktop";
-    internal override bool ShowCommand() => !GameState.IsInGamePlay;
+
+    internal override bool CanRunCommand(out string reason)
+    {
+        if (GameState.IsInGamePlay)
+        {
+            reason = "Only can run in lobby";
+            return false;
+        }
+
+        return base.CanRunCommand(out reason);
+    }
 
     internal override void Run()
     {

src/Commands/ForceSkipCommand.cs

@@ -8,7 +8,23 @@ internal sealed class ForceSkipCommand : BaseCommand
 {
     internal override string Name => "forceskip";
     internal override string Description => "Force skips a meeting in progress";
-    internal override bool ShowCommand() => GameState.IsHost && GameState.IsMeeting;
+    internal override bool CanRunCommand(out string reason)
+    {
+        if (!GameState.IsHost)
+        {
+            reason = "Can only run as host";
+            return false;
+        }
+
+        if (!GameState.IsMeeting)
+        {
+            reason = "Can only run in meeting";
+            return false;
+        }
+
+        return base.CanRunCommand(out reason);
+    }
+
     internal override void Run()
     {
         if (GameState.IsHost)

src/Commands/KickCommand.cs

@@ -1,6 +1,6 @@
-using BetterAmongUs.Commands.Arguments;
+using BetterAmongUs.Attributes;
+using BetterAmongUs.Commands.Arguments;
 using BetterAmongUs.Helpers;
-using BetterAmongUs.Attributes;
 using BetterAmongUs.Modules;
 
 namespace BetterAmongUs.Commands;
@@ -10,6 +10,16 @@ internal sealed class KickCommand : BaseCommand
 {
     internal override string Name => "kick";
     internal override string Description => "Kick a player from the game";
+    internal override bool CanRunCommand(out string reason)
+    {
+        if (!GameState.IsHost)
+        {
+            reason = "Can only run as host";
+            return false;
+        }
+
+        return base.CanRunCommand(out reason);
+    }
     public KickCommand()
     {
         playerArgument = new PlayerArgument(this);
@@ -19,7 +29,6 @@ internal sealed class KickCommand : BaseCommand
     private PlayerArgument playerArgument { get; }
     private BoolArgument boolArgument { get; }
 
-    internal override bool ShowCommand() => GameState.IsHost;
     internal override void Run()
     {
         var player = playerArgument.TryGetTarget();

src/Patches/Gameplay/UI/Chat/ChatCommandsPatch.cs

@@ -52,6 +52,11 @@ internal static class ChatCommandsPatch
             return true;
         }
 
+        if (!closestCommand.CanRunCommand(out string _))
+        {
+            return false;
+        }
+
         HandleCommand();
 
         if (ChatPatch.ChatHistory.Count == 0 || ChatPatch.ChatHistory[^1] != text) ChatPatch.ChatHistory.Add(text);
@@ -130,8 +135,7 @@ internal static class ChatCommandsPatch
 
             closestCommand = GetClosestCommand(typedParts[0]);
             bool isSuggestionValid = closestCommand != null
-                && (typedParts[0].Equals(closestCommand.Name, StringComparison.OrdinalIgnoreCase) || typedParts.Length == 1)
-                && closestCommand.ShowSuggestion();
+                && (typedParts[0].Equals(closestCommand.Name, StringComparison.OrdinalIgnoreCase) || typedParts.Length == 1);
 
             if (isSuggestionValid)
             {
@@ -167,8 +171,13 @@ internal static class ChatCommandsPatch
             __instance.freeChatField.textArea.SetText(fullSuggestion);
         }
 
+        if (!closestCommand.CanRunCommand(out string _))
+        {
+            fullSuggestion = fullSuggestion.ToColor("#FF0300".HexToColor());
+        }
+
         commandText.text = fullSuggestion;
-        commandInfo.text = $"{closestCommand.Description}{GenerateArgumentInfo()}";
+        commandInfo.text = $"{closestCommand.Description}{GenerateArgumentInfo()}{GenerateCanRunInfo()}";
     }
 
     private static string GenerateSuggestion(string[] typedParts)
@@ -207,6 +216,15 @@ internal static class ChatCommandsPatch
         return $" - <#a6a6a6>{argumentInfo}</color>";
     }
 
+    private static string GenerateCanRunInfo()
+    {
+        if (!closestCommand.CanRunCommand(out string reason))
+        {
+            return $" - <#FF0300>{reason}</color>";
+        }
+
+        return string.Empty;
+    }
 
     internal static BaseCommand? GetClosestCommand(string typedCommand)
     {