updated CommandManager.cs to use attributes instead of Classes

Server/CommandAttribute.cs

@@ -0,0 +1,12 @@
+namespace Server;
+
+[AttributeUsage(AttributeTargets.Method, Inherited = false)]
+public sealed class CommandAttribute : Attribute
+{
+    public string Name { get; }
+
+    public CommandAttribute(string name)
+    {
+        Name = name;
+    }
+}

Server/CommandException.cs

@@ -0,0 +1,10 @@
+namespace Server;
+
+using System;
+
+public class CommandException : Exception
+{
+    public CommandException(string message) : base(message)
+    {
+    }
+}

Server/CommandLibrary.cs

@@ -0,0 +1,73 @@
+using System.Net.Sockets;
+using DX86;
+using Server.Commands;
+
+namespace Server;
+
+public class CommandLibrary
+{
+    [Command("example")]
+    public static string ExampleCommand(string[] args, TcpClient? client, TcpServer? socket) =>
+        $"Example command executed with arguments: {string.Join(", ", args)}";
+    
+    #region Basic Commands
+
+        [Command("help")]
+        public static string HelpCommand() =>
+        "Available commands:\n" +
+        "1. help - Show this help message\n" +
+        "2. exit - Exit the server\n" +
+        "3. user - User management\n" +
+        "4. settings - Server settings\n" +
+        "5. start - Start the server\n" +
+        "6. stop - Stop the server\n";
+
+    #endregion
+
+    #region Client Commands
+
+    [Command("login")]
+    public static string LoginCommand(string[] args, TcpClient? client, TcpServer? socket)
+    {
+        if (args.Length < 2)
+            throw new CommandException("Missing arguments: usage is login <username> <password>");
+
+        string username = args[0];
+        string password = args[1];
+
+        if (username == "test" && password == "1234")
+        {
+            if (client != null)
+            {
+                socket?.LoggedInClients.Add(client, username);
+                return "Login successful";
+            }
+
+            throw new CommandException("No client connection detected.");
+        }
+
+        throw new CommandException("Invalid username or password.");
+    }
+
+        [Command("logout")]
+        public static string LogoutCommand(TcpClient? client, TcpServer? socket)
+        {
+            if (client != null && socket?.LoggedInClients.ContainsKey(client) == true)
+            {
+                socket.LoggedInClients.Remove(client);
+                return "Logout successful";
+            }
+            throw new CommandException("No client provided or not logged in");
+        }
+
+    #endregion
+
+    #region Administration Commands
+    
+        [Command("get")]
+        public static string GetCommand(string[] args, TcpClient? client, TcpServer? socket) =>
+        $"not implemented yet, args: {string.Join(", ", args)}";
+    
+    #endregion
+    
+}

Server/CommandManager.cs

@@ -8,7 +8,7 @@ namespace Server;
 
 public class CommandManager
 {
-    private readonly Dictionary<string, ICommand> _commands = new();
+    private readonly Dictionary<string, MethodInfo> _commands = new();
 
     public CommandManager()
     {
@@ -17,38 +17,84 @@ public class CommandManager
 
     private void LoadCommands()
     {
-        // Get all types implementing ICommand
-        var commandTypes = Assembly.GetExecutingAssembly()
+        var methods = Assembly.GetExecutingAssembly()
             .GetTypes()
-            .Where(t => typeof(ICommand).IsAssignableFrom(t) && !t.IsInterface && !t.IsAbstract);
+            .SelectMany(t => t.GetMethods(BindingFlags.Public | BindingFlags.Static))
+            .Where(m => m.GetCustomAttribute<CommandAttribute>() != null);
 
-        foreach (var type in commandTypes)
+        foreach (var method in methods)
         {
-            // Create an instance of the command
-            if (Activator.CreateInstance(type) is ICommand command)
-            {
-                // Use the Executor property as the key
-                _commands[command.Executor] = command;
-            }
+            var attr = method.GetCustomAttribute<CommandAttribute>()!;
+            _commands[attr.Name.ToLower()] = method;
+            Program.messageSender.Log($"[COMMANDMANAGER] Registered command: {attr.Name}");
         }
     }
-
     public void ExecuteCommand(string executor, TcpClient? client = null, TcpServer? clientSocket = null, string cid = "", params string[] args)
+{
+    if (_commands.TryGetValue(executor.ToLower(), out var method))
     {
-        if (_commands.TryGetValue(executor, out var command))
+        try
         {
-            JsonMessage returnMessage = new JsonMessage();
-            returnMessage.cid = cid;
-            returnMessage.cmd = command.Exec(args:args, client:client, clientSocket:clientSocket);
+            var parameters = method.GetParameters();
+            var arguments = new object?[parameters.Length];
 
-            string sendClientMessage = JsonSerializer.Serialize(returnMessage);
-            
-            clientSocket.SendMessageAsync(client:client, message:sendClientMessage+"\n");
-            //clientSocket.SendMessageAsync(client:client, message:command.Exec(args:args, client:client, clientSocket:clientSocket));
+            for (int i = 0; i < parameters.Length; i++)
+            {
+                var param = parameters[i];
+
+                if (param.ParameterType == typeof(string[]))
+                    arguments[i] = args;
+                else if (param.ParameterType == typeof(TcpClient))
+                    arguments[i] = client;
+                else if (param.ParameterType == typeof(TcpServer))
+                    arguments[i] = clientSocket;
+                else
+                {
+                    Program.messageSender.Warn($"[COMMANDMANAGER] Unknown parameter type '{param.ParameterType.Name}' in command '{executor}'. Defaulting to null.");
+                    arguments[i] = null;
+                }
+            }
+
+            Program.messageSender.Debug($"[COMMANDMANAGER] Executing command '{executor}'...");
+            string result = method.Invoke(null, arguments)?.ToString() ?? "";
+
+            var returnMessage = new JsonMessage
+            {
+                cid = cid,
+                cmd = result
+            };
+
+            var sendClientMessage = JsonSerializer.Serialize(returnMessage);
+            clientSocket?.SendMessageAsync(client, sendClientMessage + "\n");
+            Program.messageSender.Debug($"[COMMANDMANAGER] Response sent to client.");
         }
-        else
+        catch (TargetInvocationException ex) when (ex.InnerException is CommandException cmdEx)
         {
-            Program.messageSender.Log($"[COMMANDMANAGER] Command '{executor}' not found.");
+            Program.messageSender.Warn($"[COMMANDMANAGER] Command '{executor}' failed: {cmdEx.Message}");
+
+            var returnMessage = new JsonMessage
+            {
+                cid = cid,
+                cmd = $"Error: {cmdEx.Message}"
+            };
+
+            var sendClientMessage = JsonSerializer.Serialize(returnMessage);
+            clientSocket?.SendMessageAsync(client, sendClientMessage + "\n");
+        }
+        catch (TargetInvocationException ex)
+        {
+            var actualError = ex.InnerException?.Message ?? ex.Message;
+            Program.messageSender.Error($"[COMMANDMANAGER] Unexpected error in command '{executor}': {actualError}");
+            Program.messageSender.Debug($"[COMMANDMANAGER] Stack Trace: {ex.InnerException?.StackTrace ?? ex.StackTrace}");
+        }
+        catch (Exception ex)
+        {
+            Program.messageSender.Error($"[COMMANDMANAGER] Failed to invoke command '{executor}': {ex.Message}");
         }
     }
+    else
+    {
+        Program.messageSender.Warn($"[COMMANDMANAGER] Unknown command '{executor}' received.");
+    }
+}
 }