added editing user profile.

src/main/java/org/to/telegramfinalproject/Server/AuthService.java

@@ -20,7 +20,7 @@ public class AuthService {
             } else {
                 UUID uuid = UUID.randomUUID();
                 password = PasswordHashing.hash(password);
-                User user = new User(user_id, uuid, username, password, profile_name);
+                User user = new User(user_id, uuid, username, password, profile_name, "", "");
                 return this.userDb.save(user);
             }
         } else {

src/main/java/org/to/telegramfinalproject/Server/ClientHandler.java

@@ -1722,6 +1722,62 @@ public class ClientHandler implements Runnable {
                         break;
                     }
 
+                    case "edit_profile_name": {
+                        // Validate input
+                        if (!requestJson.has("new_profile_name")) {
+                            response = new ResponseModel("error", "Missing new profile name.");
+                            break;
+                        }
+
+                        String user_id = this.currentUser.getUser_id();
+                        String newProfileName = requestJson.getString("new_profile_name");
+
+                        response = SidebarService.updateProfileName(user_id, newProfileName);
+                        break;
+                    }
+
+                    case "edit_user_id": {
+                        // Validate input
+                        if (!requestJson.has("new_user-id")) {
+                            response = new ResponseModel("error", "Missing new user ID.");
+                            break;
+                        }
+
+                        String currentUserId = this.currentUser.getUser_id();
+                        String newUserId = requestJson.getString("new_user_id");
+
+                        response = SidebarService.updateUserId(currentUserId, newUserId);
+                        break;
+                    }
+
+                    case "edit_bio": {
+                        // Validate input
+                        if (!requestJson.has("new_bio")) {
+                            response = new ResponseModel("error", "Missing new bio.");
+                            break;
+                        }
+
+                        String currentUserId = this.currentUser.getUser_id();
+                        String newBio = requestJson.getString("new_bio").trim();
+
+                        response = SidebarService.updateBio(currentUserId, newBio);
+                        break;
+                    }
+
+                    case "edit_profile_picture": {
+                        // Validate input
+                        if (!requestJson.has("new_image_url")) {
+                            response = new ResponseModel("error", "Missing new image url.");
+                            break;
+                        }
+
+                        String currentUserId = this.currentUser.getUser_id();
+                        String newImageUrl = requestJson.getString("new_image_url").trim();
+
+                        response = SidebarService.updateProfilePicture(currentUserId, newImageUrl);
+                        break;
+                    }
+
                     default:
                         response = new ResponseModel("error", "Unknown action: " + action);
                 }

src/main/java/org/to/telegramfinalproject/Server/SidebarService.java

@@ -2,8 +2,11 @@ package org.to.telegramfinalproject.Server;
 
 import org.json.JSONObject;
 import org.to.telegramfinalproject.Database.userDatabase;
+import org.to.telegramfinalproject.Models.ResponseModel;
 import org.to.telegramfinalproject.Models.User;
 
+import java.util.Objects;
+
 public class SidebarService {
     private static userDatabase userDB = new userDatabase();
 
@@ -25,33 +28,128 @@ public class SidebarService {
         return profile;
     }
 
-    // Updates one or more profile fields for the user
-    public static JSONObject updateUserProfile(String userId, JSONObject updateData) {
-        return null;
+    // Changes the user's profile picture
+    public static ResponseModel updateProfilePicture(String userId, String newImageUrl) {
+        User user = userDB.findByUserId(userId);
+        if (user == null) {
+            return new ResponseModel("error", "User not found.");
+        }
+
+        String currentUrl = user.getImage_url();
+        if (Objects.equals(currentUrl, newImageUrl)) {
+            return new ResponseModel("error", "No changes made. Profile picture is the same.");
+        }
+
+        user.setImage_url(newImageUrl); // Can be null
+        boolean success = userDB.updateByUUID(user.getInternal_uuid(), user);
+
+        if (success) {
+            return new ResponseModel("success", "Profile picture updated successfully.");
+        } else {
+            user.setImage_url(currentUrl);
+            return new ResponseModel("error", "Failed to update profile picture.");
+        }
     }
 
-    // Changes the user's profile picture
-    public static JSONObject changeProfilePicture(String userId, byte[] imageData) {
-        return null;
+    // Changes user's bio
+    public static ResponseModel updateBio(String userId, String newBio) {
+        if (newBio.length() > 70) {
+            return new ResponseModel("error", "Bio is too long.");
+        }
+
+        User user = userDB.findByUserId(userId);
+        if (user == null) {
+            return new ResponseModel("error", "User not found.");
+        }
+
+        String currentBio = user.getBio();
+        if (Objects.equals(currentBio, newBio)) {
+            return new ResponseModel("error", "No changes made. Bio is the same.");
+        }
+
+        user.setBio(newBio);
+        boolean success = userDB.updateByUUID(user.getInternal_uuid(), user);
+
+        if (success) {
+            return new ResponseModel("success", "Bio updated successfully.");
+        } else {
+            user.setBio(currentBio);
+            return new ResponseModel("error", "Failed to update bio.");
+        }
     }
 
     // Changes user-id
-    public static JSONObject updateUserId(String userId, String newUserId) {
-        return null;
-    }
+    public static ResponseModel updateUserId(String currentUserId, String newUserId) {
+        if (newUserId == null || newUserId.trim().isEmpty()) {
+            return new ResponseModel("error", "User ID cannot be empty.");
+        }
 
-    // (Optional) Changes username
-    public static JSONObject updateUserName(String userId, String newUserName) {
-        return null;
+        newUserId = newUserId.trim();
+
+        if (newUserId.contains(" ")) {
+            return new ResponseModel("error", "User ID cannot contain spaces.");
+        }
+
+        if (!newUserId.matches("^[a-zA-Z0-9_]+$")) {
+            return new ResponseModel("error", "User ID can only contain letters, digits, and underscores.");
+        }
+
+        if (userDB.findByUserId(newUserId) != null) {
+            return new ResponseModel("error", "This user ID is already taken.");
+        }
+
+        User user = userDB.findByUserId(currentUserId);
+        if (user == null) {
+            return new ResponseModel("error", "User not found.");
+        }
+
+        if (Objects.equals(currentUserId, newUserId)) {
+            return new ResponseModel("error", "No changes made. User ID is the same.");
+        }
+
+        user.setUser_id(newUserId);
+
+        boolean saved = userDB.updateByUUID(user.getInternal_uuid(), user);
+        if (saved) {
+            return new ResponseModel("success", "User ID updated successfully.");
+        } else {
+            user.setUser_id(currentUserId);
+            return new ResponseModel("error", "Failed to update user ID due to server error.");
+        }
     }
 
     // Changes user's profile name
-    public static JSONObject updateProfileName(String userId, String newProfileName) {
-        return null;
+    public static ResponseModel updateProfileName(String userId, String newProfileName) {
+        if (newProfileName == null || newProfileName.trim().isEmpty()) {
+            return new ResponseModel("error", "Invalid input."); // Invalid input (empty or just spaces)
+        }
+
+        // Fetch the user from database
+        User user = userDB.findByUserId(userId);
+        if (user == null) {
+            return new ResponseModel("error", "User not found."); // User doesn't exist
+        }
+
+        String oldName = user.getProfile_name();
+        if (Objects.equals(oldName, newProfileName)) {
+            return new ResponseModel("error", "No changes made. Profile name is the same.");
+        }
+
+        // Only set the profile name *after* successful DB update
+        user.setProfile_name(newProfileName);
+
+        boolean saved = userDB.updateByUUID(user.getInternal_uuid(), user);
+
+        if (saved) {
+            return new ResponseModel("success", "Profile name updated successfully.");
+        } else {
+            user.setProfile_name(oldName);
+            return new ResponseModel("error", "Failed to update profile name.");
+        }
     }
 
-    // Changes or sets the user's date of birth
-    public static JSONObject updateDateOfBirth(String userId, String newDateOfBirth) {
-        return null;
+    // Changes username
+    public static boolean updateUserName(String userId, String newUserName) {
+        return false;
     }
 }