src/main/java/com/university/chat/Client/chatClient.java

@@ -1,64 +1,135 @@
 package com.university.chat.Client;
 
 import com.university.chat.Common.ChatMessage;
-import com.university.chat.Server.ClientSession;
-import com.university.chat.Server.UserManager;
+import com.university.chat.Common.FileMessage;
+import com.university.chat.Common.MessageType;
 
-import java.io.IOException;
+import java.io.File;
 import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
-import java.net.ServerSocket;
 import java.net.Socket;
+import java.nio.file.Files;
 import java.util.Scanner;
 
 public class chatClient {
-    public static final UserManager userManager =
-            new UserManager();
 
-    public static void main() {
-        // TODO: Connecting to the server
-        //  1. Create a socket and connect to the server
-        //  2. Create an ObjectOutputStream (out) and ObjectInputStream (in)
-        //      from the socket's streams — output FIRST, then input.
-        //  2. Get the username, and send a LOGIN ChatMessage with that username
-        //  3. Start a new Thread running a ServerListener(in) so incoming
-        //      messages are handled concurrently.
-            ServerSocket serverSocket;
+    public static void main(String[] args) {
 
-            try{
-                serverSocket =new ServerSocket(5000);
+        try {
+            Socket socket = new Socket("localhost", 8080);
 
-                System.out.println("Server started");
-            } catch (Exception e) {
-                throw new RuntimeException(e);
-            }
+            ObjectOutputStream out = new ObjectOutputStream(socket.getOutputStream());
 
-        while (true){
-            try {
-                // TODO: Program loop — read a line from the console and act on it:
-                //   - "/msg <user> <text>"         -> build & send a PRIVATE_MESSAGE
-                //   - "/users"                    -> build & send a USER_LIST request
-                //   - "/sendfile <user> <path>"   -> read the file into a byte[]
-                //                                     (you can use TransferProgress
-                //                                     to show progress)
-                //                                     and send it as a FileMessage
-                //   - anything else               -> send a PUBLIC_MESSAGE
-                //   Remember to flush() the output stream after writeObject().
+            ObjectInputStream in = new ObjectInputStream(socket.getInputStream());
 
-                Socket socket =
-                        serverSocket.accept();
+            Scanner scanner = new Scanner(System.in);
 
-                ClientSession session =
-                        new ClientSession(
-                                socket,
-                                userManager
+            System.out.print("Enter username: ");
+            String username = scanner.nextLine();
+
+            ChatMessage login = new ChatMessage(
+                    MessageType.LOGIN,
+                    username,
+                    "",
+                    ""
+            );
+
+            out.writeObject(login);
+
+            new Thread(new ServerListener(in)).start();
+
+            while (true) {
+
+                try {
+
+                    String text = scanner.nextLine();
+
+                    if (text.startsWith("/msg ")) {
+
+                        String[] parts = text.split(" ", 3);
+
+                        if (parts.length < 3) {
+                            System.out.println("Wrong command.");
+                            continue;
+                        }
+
+                        ChatMessage message = new ChatMessage(
+                                MessageType.PRIVATE_MESSAGE,
+                                username,
+                                parts[1],
+                                parts[2]
                         );
 
-                new Thread(session).start();
+                        out.writeObject(message);
+                        out.flush();
+                    }
+
+                    else if (text.equals("/users")) {
+
+                        ChatMessage message = new ChatMessage(
+                                MessageType.USER_LIST,
+                                username,
+                                "",
+                                ""
+                        );
+
+                        out.writeObject(message);
+                        out.flush();
+                    }
+
+                    else if (text.startsWith("/sendfile ")) {
+
+                        String[] parts = text.split(" ", 3);
+
+                        if (parts.length < 3) {
+                            System.out.println("Wrong command.");
+                            continue;
+                        }
+
+                        File file = new File(parts[2]);
+
+                        if (!file.exists()) {
+                            System.out.println("File not found.");
+                            continue;
+                        }
+
+                        byte[] data = Files.readAllBytes(file.toPath());
+
+                        FileMessage fileMessage = new FileMessage(
+                                username,
+                                parts[1],
+                                file.getName(),
+                                data
+                        );
+
+                        out.writeObject(fileMessage);
+                        out.flush();
+
+                        System.out.println("File sent.");
+                    }
+
+                    else {
+
+                        ChatMessage message = new ChatMessage(
+                                MessageType.PUBLIC_MESSAGE,
+                                username,
+                                "",
+                                text
+                        );
+
+                        out.writeObject(message);
+                        out.flush();
+                    }
+
+                } catch (Exception e) {
+                    System.out.println("Command failed.");
+                }
 
-            } catch (Exception e){
-                System.out.println("command failed: " + e.getMessage());
             }
+
+        } catch (Exception e) {
         }
+
     }
-}
+
+}

src/main/java/com/university/chat/Server/ClientSession.java

@@ -10,7 +10,6 @@ import java.io.ObjectOutputStream;
 import java.net.Socket;
 import java.nio.file.Files;
 
-import static com.university.chat.Client.chatClient.userManager;
 
 public class ClientSession implements Runnable {