Listen Chat messages for eval

Author: Trojaner

.gitmodules

@@ -0,0 +1,6 @@
+[submodule "Rocket.Scripting.Node/Espresso"]
+	path = Rocket.Scripting.Node/Espresso
+	url = https://github.com/prepare/Espresso
+[submodule "Rocket.Scripting.Node/node"]
+	path = Rocket.Scripting.Node/node
+	url = https://github.com/nodejs/node

Rocket.Scripting.CSharp/CSharpScriptingProvider.cs

@@ -17,8 +17,11 @@ public CSharpScriptingProvider(IDependencyContainer container) : base(container)
 
         public override string[] FileTypes => new[] { "cs" };
         public override string ScriptName => "C#";
-        public override IEnumerable<IPlugin> Plugins { get; }
-        private List<IPlugin> _plugins = new List<IPlugin>();
+
+        public override bool SupportsRepl => true;
+        
+        public override IEnumerable<IPlugin> Plugins => _plugins;
+        private readonly List<IPlugin> _plugins = new List<IPlugin>();
 
         public override IScriptContext CreateScriptContext(IDependencyContainer container)
         {

Rocket.Scripting.JavaScript/JavaScriptScriptingProvider.cs

@@ -61,6 +61,8 @@ public override void UnloadPlugins()
             ((List<IPlugin>)Plugins).Clear();
         }
 
+        public override bool SupportsRepl => true;
+
         public override ScriptResult ExecuteFile(
             string path,
             IDependencyContainer container,

Rocket.Scripting.JavaScript/lib/Jint.dll

@@ -12,6 +12,8 @@ public interface IScriptingProvider
 
         void UnregisterContext(IScriptContext context);
 
+        bool SupportsRepl { get; }
+
         ScriptResult ExecuteFile(
             string path, 
             IDependencyContainer container,

Rocket.Scripting/IScriptingProvider.cs

@@ -6,12 +6,14 @@
 using Rocket.API.Eventing;
 using Rocket.API.User;
 using Rocket.Core.Commands.Events;
+using Rocket.Core.Player.Events;
 using Rocket.Core.Plugins;
 using Rocket.Core.User;
+using Rocket.Core.User.Events;
 
 namespace Rocket.Scripting
 {
-    class ScriptingPlugin : Plugin, IEventListener<PreCommandExecutionEvent>
+    class ScriptingPlugin : Plugin, IEventListener<PreCommandExecutionEvent>, IEventListener<UserChatEvent>
     {
         public ScriptingPlugin(IDependencyContainer container) : base("ScriptingPlugin", container)
         {
@@ -94,5 +96,20 @@ public void HandleEvent(IEventEmitter emitter, PreCommandExecutionEvent @event)
             if (result.HasReturn)
                 console.SendMessage("> " + result.Return, ConsoleColor.Gray);
         }
+
+        public void HandleEvent(IEventEmitter emitter, UserChatEvent @event)
+        {
+            var session = GetScriptContext(@event.User);
+            if (session == null)
+                return;
+
+            @event.IsCancelled = true;
+
+            var cmd = @event.Message;
+            var result = session.Eval(cmd);
+
+            if (result.HasReturn)
+                @event.User.SendMessage("> " + result.Return, ConsoleColor.Gray);
+        }
     }
 }

Rocket.Scripting/ScriptingPlugin.cs

@@ -148,6 +148,8 @@ public virtual void UnregisterContext(IScriptContext context)
             Contexts.Remove(context);
         }
 
+        public abstract bool SupportsRepl { get; }
+
         /// <summary>
         /// Executes the given script file
         /// </summary>