pass has been refactorized and nick command init

cmds/nick.cpp

@@ -0,0 +1,28 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   nick.cpp                                           :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: aortigos <aortigos@student.42malaga.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2026/05/10 22:06:22 by aortigos          #+#    #+#             */
+/*   Updated: 2026/05/14 20:38:44 by aortigos         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "../Server/Server.hpp"
+
+void	Server::nick_cmd(User &client, std::istringstream &ss)
+{
+	std::string		args;
+
+	ss >> args;
+	if (args.empty())
+		return (client.send(":" SERVER_NAME " 431 * :Not nickname given\r\n"));
+	// Invalid characters in nick
+		// 432 * badnick : Erroneous nickname
+	// If nick exists
+		// 4233 * takenick :Nickname is already in use
+	if (client.getUsername())
+		return (); // Broadcast in channels :oldnick!user@host NICK newnick
+}