add viewing user profile.

src/main/java/org/to/telegramfinalproject/Client/ActionHandler.java

@@ -703,7 +703,8 @@ public class ActionHandler {
             System.out.println("2. Search");
             System.out.println("3. Create Channel");
             System.out.println("4. Create group");
-            System.out.println("5. Logout");
+            System.out.println("5. Show sidebar menu");
+            System.out.println("6. Logout");
             System.out.print("Choose an option: ");
             String choice = scanner.nextLine();
 
@@ -716,7 +717,8 @@ public class ActionHandler {
                 case "2" -> search();
                 case "3" -> createChannel();
                 case "4" -> createGroup();
-                case "5" -> {
+                case "5" -> showSidebarMenu();
+                case "6" -> {
                     logout();
                     return;
                 }
@@ -2712,8 +2714,50 @@ public class ActionHandler {
         }
     }
 
+    private void showSidebarMenu() {
+        System.out.println("\n--- Sidebar Menu ---");
+        System.out.println("1. View Profile");
+        System.out.println("2. New Group");
+        System.out.println("3. New Channel");
+        System.out.println("4. View Contacts");
+        System.out.println("5. Saved messages");
+        System.out.println("6. Settings");
+        System.out.println("7. Telegram features");
+        System.out.println("8. Telegram Q&A");
+        System.out.println("0. Back");
+        System.out.println("Choose your action: (0 to 8)");
 
+        // Handle invalid input
+        int action;
+        while (true) {
+            if (scanner.hasNextInt()) {
+                action = scanner.nextInt();
+                scanner.nextLine(); // Clear newline
 
-}
-
+                if (action >= 0 && action <= 8) {
+                    break;
+                }
+                System.out.println("Invalid input. Please enter a number between 0 and 8.");
+            } else {
+                scanner.nextLine();
+                System.out.println("Invalid input. Try again.");
+            }
+        }
 
+        SidebarHandler sidebarHandler = new SidebarHandler(scanner);
+        switch (action) {
+            case 0 -> {
+                return;
+            }
+            case 1 -> sidebarHandler.handleSidebarAction(SidebarAction.MY_PROFILE);
+            case 2 -> sidebarHandler.handleSidebarAction(SidebarAction.NEW_GROUP);
+            case 3 -> sidebarHandler.handleSidebarAction(SidebarAction.NEW_CHANNEL);
+            case 4 -> sidebarHandler.handleSidebarAction(SidebarAction.CONTACTS);
+            case 5 -> sidebarHandler.handleSidebarAction(SidebarAction.SAVED_MESSAGES);
+            case 6 -> sidebarHandler.handleSidebarAction(SidebarAction.SETTINGS);
+            case 7 -> sidebarHandler.handleSidebarAction(SidebarAction.FEATURES);
+            case 8 -> sidebarHandler.handleSidebarAction(SidebarAction.Q_AND_A);
+            default -> System.out.println("Invalid action.");
+        }
+    }
+}

src/main/java/org/to/telegramfinalproject/Client/SidebarAction.java

@@ -0,0 +1,12 @@
+package org.to.telegramfinalproject.Client;
+
+public enum SidebarAction {
+    MY_PROFILE,
+    NEW_GROUP,
+    NEW_CHANNEL,
+    CONTACTS,
+    SAVED_MESSAGES,
+    SETTINGS,
+    FEATURES,
+    Q_AND_A
+}

src/main/java/org/to/telegramfinalproject/Client/SidebarHandler.java

@@ -0,0 +1,148 @@
+package org.to.telegramfinalproject.Client;
+
+import org.json.JSONObject;
+
+import java.util.Scanner;
+
+public class SidebarHandler {
+    private final Scanner scanner;
+
+    public SidebarHandler(Scanner scanner) {
+        this.scanner = scanner;
+    }
+
+    public void handleSidebarAction(SidebarAction action) {
+        switch (action) {
+            case MY_PROFILE:
+                openUserProfile();
+                break;
+            case NEW_GROUP:
+                createNewGroup();
+                break;
+            case NEW_CHANNEL:
+                createNewChannel();
+                break;
+            case CONTACTS:
+                showContacts();
+                break;
+            case SAVED_MESSAGES:
+                showSavedMessages();
+                break;
+            case SETTINGS:
+                openSettings();
+                break;
+            case FEATURES:
+                showTelegramFeatures();
+                break;
+            case Q_AND_A:
+                showTelegramQA();
+                break;
+        }
+    }
+
+    private void openUserProfile() {
+        // Step 1: Request profile info from the server
+        JSONObject request = new JSONObject();
+        request.put("action", "get_user_profile");
+
+        JSONObject response = ActionHandler.sendWithResponse(request);
+        if (response == null || !response.optString("status", "fail").equals("success")) {
+            System.out.println("Failed to load profile information.");
+            return;
+        }
+
+        JSONObject profile = response.getJSONObject("data");
+
+        String profileName = profile.optString("profile_name", "NOT-AVAILABLE");
+        String userId = profile.optString("user_id", "NOT-AVAILABLE");
+        String status = profile.optString("status", "NOT-AVAILABLE");
+        String bio = profile.optString("bio", "NOT-AVAILABLE");
+        String profilePictureUrl = profile.optString("profile_picture_url", "NOT-AVAILABLE");
+
+        // Step 2: Show profile info
+        System.out.println("===== My Profile =====");
+        System.out.println("Profile Picture URL : " + profilePictureUrl);
+        System.out.println("Profile Name        : " + profileName);
+        System.out.println("User ID             : " + userId);
+        System.out.println("Status              : " + status);
+        System.out.println("Bio                 : " + bio);
+        System.out.println("======================");
+
+        // Step 3: Ask if user wants to edit anything
+        System.out.println("Do you want to edit any of these? (yes/no)");
+        while (true) {
+            String choice = scanner.nextLine().trim().toLowerCase();
+            if (choice.equals("no")) return;
+            if (!choice.equals("yes")) {
+                System.out.println("Invalid input. Please enter 'yes' or 'no'.");
+                continue;
+            }
+
+            // Step 4: Show editable fields
+            System.out.println("Which field do you want to edit?");
+            System.out.println("1. Profile Name");
+            System.out.println("2. User ID");
+            System.out.println("3. Bio");
+            System.out.println("4. Profile Picture URL");
+            System.out.println("0. Cancel");
+
+            String option = scanner.nextLine().trim();
+            switch (option) {
+                case "1" -> editProfileName();
+                case "2" -> editUserId();
+                case "3" -> editBio();
+                case "4" -> editProfilePictureUrl();
+                case "0" -> { return; }
+                default -> System.out.println("Invalid choice. Try again.");
+            }
+
+            // Re-fetch and re-display profile after editing
+            openUserProfile();
+            return;
+        }
+    }
+
+    private void editProfileName() {
+
+    }
+
+    private void editUserId() {
+
+    }
+
+    private void editBio() {
+
+    }
+
+    private void editProfilePictureUrl() {
+
+    }
+
+    private void createNewGroup() {
+        System.out.println("👥 Creating a new group...");
+    }
+
+    private void createNewChannel() {
+        System.out.println("📢 Creating a new channel...");
+    }
+
+    private void showContacts() {
+        System.out.println("📇 Showing contacts...");
+    }
+
+    private void showSavedMessages() {
+        System.out.println("💾 Showing saved messages...");
+    }
+
+    private void openSettings() {
+        System.out.println("⚙️ Opening settings...");
+    }
+
+    private void showTelegramFeatures() {
+        System.out.println("🌟 Showing Telegram features...");
+    }
+
+    private void showTelegramQA() {
+        System.out.println("❓ Showing Q&A...");
+    }
+}