Merge branch 'develop' into ArchivedChats

# Conflicts:
#	src/main/java/org/to/telegramfinalproject/Client/ActionHandler.java
#	src/main/java/org/to/telegramfinalproject/Client/Session.java
#	src/main/java/org/to/telegramfinalproject/Models/ChatEntry.java
#	src/main/java/org/to/telegramfinalproject/Server/ClientHandler.java

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

@@ -1,20 +1,38 @@
 package org.to.telegramfinalproject.Client;
 
-public class EventProcessorThread extends Thread {
-    private final ActionHandler handler;
+import org.json.JSONObject;
 
-    public EventProcessorThread(ActionHandler handler) {
-        this.handler = handler;
-        setDaemon(true);
-    }
+import java.io.BufferedReader;
 
-    @Override
-    public void run() {
-        while (true) {
-            try {
-                Thread.sleep(2000);
-                handler.processIncomingEvents();
-            } catch (InterruptedException ignored) {}
-        }
-    }
-}
+//public class EventProcessorThread extends Thread {
+//    private final ActionHandler handler;
+//    private final BufferedReader in;
+//
+//    public EventProcessorThread(ActionHandler handler, BufferedReader in) {
+//        this.handler = handler;
+//        this.in = in;
+//        setDaemon(true);
+//    }
+//
+//    @Override
+//    public void run() {
+//        try {
+//            System.out.println("👂 Real-Time Listener started.");
+//            String line;
+//            while ((line = in.readLine()) != null) {
+//                JSONObject json = new JSONObject(line);
+//                System.out.println("📥 Received raw line: " + line);
+//
+//                if (json.has("action")) {
+//                    // پیام real-time
+//                    handler.processIncomingEvent(json);
+//                } else {
+//                    // پیام پاسخ معمولی
+//                    TelegramClient.responseQueue.put(json);
+//                }
+//            }
+//        } catch (Exception e) {
+//            System.err.println("❌ Error in EventProcessorThread: " + e.getMessage());
+//        }
+//    }
+//}

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

@@ -1,9 +1,13 @@
 package org.to.telegramfinalproject.Client;
 
-
 import org.json.JSONObject;
+import org.to.telegramfinalproject.Models.ChatEntry;
 
 import java.io.BufferedReader;
+import java.io.IOException;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.concurrent.BlockingQueue;
 
 public class IncomingMessageListener implements Runnable {
     private final BufferedReader in;
@@ -19,25 +23,52 @@ public class IncomingMessageListener implements Runnable {
 
             String line;
             while ((line = in.readLine()) != null) {
+
+
                 JSONObject response = new JSONObject(line);
                 System.out.println("📥 Received raw line: " + line);
 
+               //if it has reqID answer
+                if (response.has("request_id")) {
+                    String requestId = response.getString("request_id");
+                    System.out.println("📬 Response with request_id: " + requestId);
+                    System.out.println("📬 Full response: " + response.toString(2));
+
+                    BlockingQueue<JSONObject> queue = TelegramClient.pendingResponses.get(requestId);
+                    if (queue != null) {
+                        queue.put(response);
+                    } else {
+                        System.out.println("⚠️ No pending queue for request_id = " + requestId + ". Putting in responseQueue...");
+                        TelegramClient.responseQueue.put(response);
+                    }
+
+                    continue;
+                }
+
+
+
+                //if it has action check it
                 if (response.has("action")) {
                     String action = response.getString("action");
+                    System.out.println("🎯 [Listener] Action received: " + response.toString(2));
+                    System.out.println("🎯 Received action: " + action);
+
                     if (isRealTimeEvent(action)) {
                         handleRealTimeEvent(response);
                     } else {
                         TelegramClient.responseQueue.put(response);
                     }
+
                 } else if (response.has("status") && response.has("message")) {
-                    TelegramClient.responseQueue.put(response);
+                    TelegramClient.responseQueue.put(response); // general answer
                 } else {
-                    TelegramClient.responseQueue.put(response);
+                    TelegramClient.responseQueue.put(response); // fallback
                 }
             }
 
         } catch (Exception e) {
-            System.out.println("🔴 Listener stopped: " + e.getMessage());
+            System.out.println("🔴 [Listener] Crashed due to: " + e.getMessage());
+            e.printStackTrace();
         }
     }
 
@@ -46,15 +77,157 @@ public class IncomingMessageListener implements Runnable {
             case "new_message", "message_edited", "message_deleted",
                  "user_status_changed", "added_to_group", "added_to_channel",
                  "update_group_or_channel", "chat_deleted",
-                 "blocked_by_user", "unblocked_by_user", "message_seen" -> true;
+                 "blocked_by_user", "unblocked_by_user", "message_seen",
+                 "removed_from_group", "removed_from_channel",
+                 "became_admin", "removed_admin", "ownership_transferred","admin_permissions_updated" -> true;
             default -> false;
         };
     }
 
-    private void handleRealTimeEvent(JSONObject response) {
+    void handleRealTimeEvent(JSONObject response) throws IOException {
         String action = response.getString("action");
         JSONObject msg = response.getJSONObject("data");
 
+
+        switch (action) {
+            case "added_to_group", "added_to_channel",
+                 "removed_from_group", "removed_from_channel", "chat_deleted" -> {
+                System.out.println("🔄 Chat list changed. Updating...");
+                Session.forceRefreshChatList = true;
+                System.out.println("🧪 Calling requestChatList() after being added");
+
+                String chatId = msg.getString("chat_id");
+                String chatType = msg.getString("chat_type");
+                ActionHandler.requestChatInfo(chatId, chatType);
+
+                if (action.equals("removed_from_group") || action.equals("removed_from_channel") || action.equals("chat_deleted")) {
+                    System.out.println("🚫 You were removed from the chat or chat was deleted. Exiting...");
+                    ActionHandler.forceExitChat = true;
+                }
+            }
+
+            case "chat_updated" -> {
+                System.out.println("\n🔄 Group/Channel info updated.");
+                new Thread(() -> {
+                    try {
+                        handleAdminRoleChanged(msg);
+                    } catch (IOException e) {
+                        e.printStackTrace();
+                    }
+                }).start();
+            }
+
+            case "became_admin", "removed_admin", "ownership_transferred","admin_permissions_updated" -> {
+                System.out.println("🧩 Detected admin/owner role change. Calling handler...");
+                new Thread(() -> {
+                    try {
+                        handleAdminRoleChanged(msg); //new thread
+                    } catch (IOException e) {
+                        e.printStackTrace();
+                    }
+                }).start();
+            }
+
+
+//
+
+
+
+            default -> displayRealTimeMessage(action, msg);
+        }
+
+        System.out.print(">> ");
+    }
+
+    private void handleAdminRoleChanged(JSONObject data) throws IOException {
+        String chatType = data.getString("chat_type");
+        String chatId = data.optString("group_id", data.optString("channel_id", data.optString("chat_id", null)));
+
+        if (chatId == null) {
+            System.out.println("⚠️ No valid ID found in real-time data: " + data.toString(2));
+            return;
+        }
+
+        System.out.println("\n🔄 Your admin status changed. Updating chat info...");
+
+        try {
+            // 1. get chat info
+            JSONObject chatInfoReq = new JSONObject();
+            chatInfoReq.put("action", "get_chat_info");
+            chatInfoReq.put("receiver_id", chatId);
+            chatInfoReq.put("receiver_type", chatType);
+            System.out.println("📤 Sending get_chat_info: " + chatInfoReq);
+            JSONObject chatInfoResp = ActionHandler.sendWithResponse(chatInfoReq);
+            JSONObject chatData = chatInfoResp.getJSONObject("data");
+
+            UUID chatUUID = UUID.fromString(chatData.getString("internal_id"));
+
+            Optional<ChatEntry> entry = Session.chatList.stream()
+                    .filter(e -> e.getId().equals(chatUUID))
+                    .findFirst();
+
+            if (entry.isEmpty()) {
+                System.out.println("❌ Chat not found in session.");
+                return;
+            }
+
+            entry.ifPresent(chat -> {
+                chat.setAdmin(chatData.optBoolean("is_admin", false));
+                chat.setOwner(chatData.optBoolean("is_owner", false));
+                chat.setName(chatData.optString("name", ""));
+                chat.setDisplayId(chatData.optString("id", ""));
+                chat.setImageUrl(chatData.optString("image_url", ""));
+                chat.setType(chatData.optString("type", ""));
+                Session.currentChatEntry = chat;
+            });
+
+            // 2. get permission
+            JSONObject permissionReq = new JSONObject();
+            if (chatType.equalsIgnoreCase("group")) {
+                permissionReq.put("action", "get_group_permissions");
+                permissionReq.put("group_id", chatId);
+            } else {
+                permissionReq.put("action", "get_channel_permissions");
+                permissionReq.put("channel_id", chatId);
+            }
+
+            JSONObject permissionResp = ActionHandler.sendWithResponse(permissionReq);
+            JSONObject perm = permissionResp.getJSONObject("data");
+            entry.ifPresent(chat -> chat.setPermissions(perm));
+
+            // 3. set currentChatId
+            Session.currentChatId = chatUUID.toString();
+
+            System.out.println("🧪 Checking refresh conditions...");
+            System.out.println("🔹 inChatMenu: " + Session.inChatMenu);
+            System.out.println("🔹 currentChatId: " + Session.currentChatId);
+            System.out.println("🔹 chatUUID: " + chatUUID);
+
+            if (Session.inChatMenu && Session.currentChatId != null && Session.currentChatId.equals(chatUUID.toString())) {
+                synchronized (Session.class) {
+                    Session.refreshCurrentChatMenu = true;
+                }
+                System.out.println("✅ Admin status updated. Refreshing menu...");
+            } else {
+                System.out.println("❌ Refresh conditions not met.");
+            }
+
+        } catch (Exception e) {
+            System.out.println("❌ Exception while handling admin role change: " + e.getMessage());
+            e.printStackTrace();
+        }
+    }
+
+
+
+
+
+
+
+
+
+
+    private void displayRealTimeMessage(String action, JSONObject msg) {
         switch (action) {
             case "new_message" -> {
                 System.out.println("\n🔔 New Message:");
@@ -62,60 +235,36 @@ public class IncomingMessageListener implements Runnable {
                 System.out.println("Time: " + msg.getString("time"));
                 System.out.println("Content: " + msg.getString("content"));
             }
-
             case "message_edited" -> {
                 System.out.println("\n✏️ Message Edited:");
                 System.out.println("ID: " + msg.getString("message_id"));
                 System.out.println("New Content: " + msg.getString("new_content"));
                 System.out.println("Edit Time: " + msg.getString("edited_at"));
             }
-
             case "message_deleted" -> {
                 System.out.println("\n🗑️ Message Deleted:");
                 System.out.println("Message ID: " + msg.getString("message_id"));
             }
-
             case "user_status_changed" -> {
                 System.out.println("\n🔄 User Status Changed:");
                 System.out.println("User: " + msg.getString("user_id"));
                 System.out.println("Status: " + msg.getString("status"));
             }
-
-            case "added_to_group" -> {
-                System.out.println("\n👥 You were added to a group: " + msg.getString("chat_name"));
-            }
-
-            case "added_to_channel" -> {
-                System.out.println("\n📢 You were added to a channel: " + msg.getString("chat_name"));
-            }
-
-            case "update_group_or_channel" -> {
-                System.out.println("\n🔄 Group/Channel updated: " + msg.getString("new_name"));
-            }
-
-            case "chat_deleted" -> {
-                System.out.println("\n🗑️ Chat deleted: " + msg.getString("chat_id"));
-            }
-
             case "blocked_by_user" -> {
                 System.out.println("\n⛔ You were blocked by user: " + msg.getString("blocker_id"));
             }
-
             case "unblocked_by_user" -> {
                 System.out.println("\n✅ You were unblocked by user: " + msg.getString("unblocker_id"));
             }
-
             case "message_seen" -> {
                 System.out.println("\n👁️ Your message was seen:");
                 System.out.println("Message ID: " + msg.getString("message_id"));
                 System.out.println("Seen at: " + msg.getString("seen_at"));
             }
-
             default -> {
                 System.out.println("\n❓ Unknown real-time action: " + action);
+                System.out.println(msg.toString(2));
             }
         }
-
-        System.out.print(">> ");
     }
 }

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

@@ -1,5 +1,6 @@
 package org.to.telegramfinalproject.Client;
 
+import org.json.JSONArray;
 import org.json.JSONObject;
 import org.to.telegramfinalproject.Models.ChatEntry;
 
@@ -11,8 +12,18 @@ import java.util.UUID;
 // method for save data from server response
 public class Session {
     public static JSONObject currentUser;
-    public static List<ChatEntry> chatList;
-    public static List<UUID> archivedChatIds = new ArrayList<>();
+    public static List<ChatEntry> chatList = new ArrayList<>();
+    public static volatile boolean forceRefreshChatList = false;
+    public static volatile boolean backToChatList = false;
+    public static boolean inChatListMenu = false;
+    public static String currentChatType = null;
+    public static volatile boolean inChatMenu = false;
+    public static volatile boolean refreshCurrentChatMenu = false;
+    public static String currentChatId = null;
+    public static ChatEntry currentChatEntry = null;
+
+
+
 
 
     public static String getUserUUID() {
@@ -22,4 +33,26 @@ public class Session {
         throw new RuntimeException("❌ No UUID found in currentUser!");
     }
 
+    public static void updateChatList(JSONArray chatArray) {
+        chatList.clear();
+        for (int i = 0; i < chatArray.length(); i++) {
+            JSONObject obj = chatArray.getJSONObject(i);
+            ChatEntry entry = new ChatEntry(
+                    UUID.fromString(obj.getString("internal_id")),
+                    obj.optString("id", ""),  // displayId
+                    obj.optString("name", ""),  // name
+                    obj.optString("image_url", ""),
+                    obj.getString("type"),
+                    null,  // last message time (if needed, parse it)
+                    obj.optBoolean("is_owner", false),
+                    obj.optBoolean("is_admin", false)
+            );
+            entry.setPermissions(obj.optJSONObject("permissions")); // اگر permissions وجود داره
+            chatList.add(entry);
+        }
+    }
+    public static List<ChatEntry> getChatList() {
+        return chatList;
+    }
+
 }

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

@@ -7,32 +7,44 @@ import java.io.IOException;
 import java.io.InputStreamReader;
 import java.io.PrintWriter;
 import java.net.Socket;
+import java.util.Map;
 import java.util.Scanner;
 import java.util.UUID;
 import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.LinkedBlockingQueue;
 
 public class TelegramClient {
     private static final String SERVER_HOST = "localhost";
     private static final int SERVER_PORT = 8000;
-    private Socket socket;
+    private static Socket socket;
     private BufferedReader in;
     private PrintWriter out;
     private final Scanner scanner;
-    ActionHandler handler = null;
+    private ActionHandler handler;
     public static BlockingQueue<JSONObject> responseQueue = new LinkedBlockingQueue<>();
+    public static UUID loggedInUserId = null;
+    public static final Map<String, BlockingQueue<JSONObject>> pendingResponses = new ConcurrentHashMap<>();
+
+
+    private static TelegramClient instance;
 
     public TelegramClient() {
         this.scanner = new Scanner(System.in);
+        instance = this;
+    }
+
+    public static TelegramClient getInstance() {
+        return instance;
     }
 
     public void start() {
         try {
-            this.socket = new Socket(SERVER_HOST, SERVER_PORT);
-            this.in = new BufferedReader(new InputStreamReader(this.socket.getInputStream()));
-            this.out = new PrintWriter(this.socket.getOutputStream(), true);
+            socket = new Socket(SERVER_HOST, SERVER_PORT);
+            in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
+            out = new PrintWriter(socket.getOutputStream(), true);
             System.out.println("✅ Connected to Telegram Server");
-            this.handler = new ActionHandler(this.out, this.in, this.scanner);
+            handler = new ActionHandler(out, in, scanner);
 
             Thread listenerThread = new Thread(new IncomingMessageListener(in));
             listenerThread.setDaemon(true);
@@ -45,7 +57,7 @@ public class TelegramClient {
         }
     }
 
-    private void showMainMenu() {
+    private void showMainMenu() throws IOException {
         while (true) {
             System.out.println("Main Menu:");
             System.out.println("1. Register");
@@ -60,7 +72,13 @@ public class TelegramClient {
                     handler.loginHandler();
                     if (Session.currentUser != null) {
                         System.out.println("✅ Login successful.");
+                        new Thread(new ActionHandler.ChatStateMonitor(out)).start();
+//                        new Thread(new ActionHandler.CurrentChatMenuRefresher(this.handler)).start();
+
+
                         UUID internalId = UUID.fromString(Session.currentUser.getString("internal_uuid"));
+                        loggedInUserId = internalId;
+
                         handler.userMenu(internalId);
                     } else {
                         System.out.println("❌ Login failed.");
@@ -75,7 +93,30 @@ public class TelegramClient {
         }
     }
 
+    public static void send(JSONObject req) {
+        try {
+            responseQueue.clear();  // optional: clear old responses
+            getInstance().out.println(req.toString());
+            System.out.println("📤 [SEND] " + req.toString(2));
+
+        } catch (Exception e) {
+            System.err.println("❌ Error sending request: " + e.getMessage());
+        }
+    }
+
+
+
+
+    public static Socket getSocket() {
+        return socket;
+    }
+
     public static void main(String[] args) {
         new TelegramClient().start();
     }
+
+    public PrintWriter getOut() {
+        return out;
+    }
+
 }

src/main/java/org/to/telegramfinalproject/Database/ChannelDatabase.java

@@ -576,7 +576,7 @@ public class ChannelDatabase {
 
 
     public static boolean transferOwnership(UUID channelId, UUID newOwnerUUID) {
-        String sql = """
+        String updateRoles = """
         UPDATE channel_subscribers
         SET role = CASE
             WHEN user_id = ? THEN 'owner'
@@ -586,15 +586,64 @@ public class ChannelDatabase {
         WHERE channel_id = ?
     """;
 
+        String clearPermissions = """
+        UPDATE channel_subscribers
+        SET permissions = '{}'::jsonb
+        WHERE channel_id = ? AND user_id = ?
+    """;
+
+        try (Connection conn = ConnectionDb.connect()) {
+            conn.setAutoCommit(false);
+
+            try (PreparedStatement roleStmt = conn.prepareStatement(updateRoles);
+                 PreparedStatement clearPermsStmt = conn.prepareStatement(clearPermissions)) {
+
+                roleStmt.setObject(1, newOwnerUUID);
+                roleStmt.setObject(2, channelId);
+                roleStmt.executeUpdate();
+
+                clearPermsStmt.setObject(1, channelId);
+                clearPermsStmt.setObject(2, newOwnerUUID);
+                clearPermsStmt.executeUpdate();
+
+                conn.commit();
+                return true;
+
+            } catch (SQLException e) {
+                conn.rollback();
+                e.printStackTrace();
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        return false;
+    }
+
+
+    public static List<UUID> getChannelSubscriberUUIDs(UUID channelId) {
+        List<UUID> subscriberIds = new ArrayList<>();
         try (Connection conn = ConnectionDb.connect();
-             PreparedStatement stmt = conn.prepareStatement(sql)) {
+             PreparedStatement stmt = conn.prepareStatement("SELECT user_id FROM channel_subscribers WHERE channel_id = ?")) {
+            stmt.setObject(1, channelId);
+            ResultSet rs = stmt.executeQuery();
+            while (rs.next()) {
+                subscriberIds.add(UUID.fromString(rs.getString("user_id")));
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return subscriberIds;
+    }
 
-            stmt.setObject(1, newOwnerUUID);
+    public static boolean updateAdminPermissions(UUID channelId, UUID userId, JSONObject permissions) {
+        String sql = "UPDATE channel_subscribers SET permissions = ?::jsonb WHERE channel_id = ? AND user_id = ? AND role = 'admin'";
+        try (Connection conn = ConnectionDb.connect();
+                PreparedStatement stmt = conn.prepareStatement(sql)) {
+            stmt.setString(1, permissions.toString());
             stmt.setObject(2, channelId);
-
-            stmt.executeUpdate();
-            return true;
-
+            stmt.setObject(3, userId);
+            return stmt.executeUpdate() > 0;
         } catch (SQLException e) {
             e.printStackTrace();
             return false;

src/main/java/org/to/telegramfinalproject/Database/ContactDatabase.java

@@ -34,6 +34,15 @@ public class ContactDatabase {
         }
     }
 
+    public static List<UUID> getContactUUIDs(UUID userId) {
+        List<Contact> contacts = getContacts(userId);
+        List<UUID> contactIds = new ArrayList<>();
+        for (Contact c : contacts) {
+            contactIds.add(c.getContact_id());
+        }
+        return contactIds;
+    }
+
 
 
     public boolean removeContact(UUID user_id, UUID contact_id)  {

src/main/java/org/to/telegramfinalproject/Database/GroupDatabase.java

@@ -3,6 +3,7 @@ package org.to.telegramfinalproject.Database;
 import org.json.JSONArray;
 import org.json.JSONObject;
 import org.to.telegramfinalproject.Models.Group;
+import org.to.telegramfinalproject.Models.User;
 
 import java.sql.*;
 import java.time.LocalDateTime;
@@ -377,7 +378,7 @@ public class GroupDatabase {
         } catch (SQLException e) {
             e.printStackTrace();
         }
-        return "member"; // پیش‌فرض
+        return "member";
     }
 
 
@@ -556,7 +557,7 @@ public class GroupDatabase {
 
     public static boolean transferOwnership(UUID groupId, UUID newOwnerId) {
         String demoteOldOwner = "UPDATE group_members SET role = 'admin' WHERE group_id = ? AND role = 'owner'";
-        String promoteNewOwner = "UPDATE group_members SET role = 'owner' WHERE group_id = ? AND user_id = ?";
+        String promoteNewOwner = "UPDATE group_members SET role = 'owner', permissions = '{}'::jsonb WHERE group_id = ? AND user_id = ?";
 
         try (Connection conn = ConnectionDb.connect()) {
             conn.setAutoCommit(false);
@@ -600,4 +601,82 @@ public class GroupDatabase {
     }
 
 
+    public static List<UUID> getGroupMemberUUIDs(UUID groupId) {
+        List<UUID> memberIds = new ArrayList<>();
+        try (Connection conn = ConnectionDb.connect();
+             PreparedStatement stmt = conn.prepareStatement("SELECT user_id FROM group_members WHERE group_id = ?")) {
+            stmt.setObject(1, groupId);
+            ResultSet rs = stmt.executeQuery();
+            while (rs.next()) {
+                memberIds.add(UUID.fromString(rs.getString("user_id")));
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+        return memberIds;
+    }
+
+    public static boolean updateAdminPermissions(UUID groupId, UUID userId, JSONObject permissions) {
+        String sql = "UPDATE group_members SET permissions = ?::jsonb WHERE group_id = ? AND user_id = ? AND role = 'admin'";
+        try (Connection conn = ConnectionDb.connect();
+                PreparedStatement stmt = conn.prepareStatement(sql)) {
+            stmt.setString(1, permissions.toString());
+            stmt.setObject(2, groupId);
+            stmt.setObject(3, userId);
+            return stmt.executeUpdate() > 0;
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    public static boolean isMember(UUID groupId, UUID userId) {
+        String sql = "SELECT 1 FROM group_members WHERE group_id = ? AND user_id = ?";
+        try (Connection conn = ConnectionDb.connect();
+             PreparedStatement stmt = conn.prepareStatement(sql)) {
+            stmt.setObject(1, groupId);
+            stmt.setObject(2, userId);
+            ResultSet rs = stmt.executeQuery();
+            return rs.next();
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+//    public static List<User> searchGroupMembers(UUID groupId, String keyword) {
+//        List<User> result = new ArrayList<>();
+//        String sql = """
+//        SELECT u.*
+//        FROM users u
+//        JOIN group_members gm ON gm.user_id = u.internal_uuid
+//        WHERE gm.group_id = ?
+//          AND (
+//                LOWER(u.profile_name) LIKE ?
+//                OR LOWER(u.username) LIKE ?
+//                OR LOWER(u.user_id) LIKE ?
+//              )
+//    """;
+//
+//        try (Connection conn = ConnectionDb.connect();
+//             PreparedStatement stmt = conn.prepareStatement(sql)) {
+//
+//            stmt.setObject(1, groupId);
+//            String likePattern = "%" + keyword.toLowerCase() + "%";
+//            stmt.setString(2, likePattern);
+//            stmt.setString(3, likePattern);
+//            stmt.setString(4, likePattern);
+//
+//            ResultSet rs = stmt.executeQuery();
+//            while (rs.next()) {
+//                User user = User.fromResultSet(rs);
+//                result.add(user);
+//            }
+//
+//        } catch (SQLException e) {
+//            e.printStackTrace();
+//        }
+//        return result;
+//    }
+
 }

src/main/java/org/to/telegramfinalproject/Database/userDatabase.java

@@ -9,13 +9,58 @@ import java.util.List;
 import java.util.UUID;
 
 public class userDatabase {
+    
+    
     public userDatabase() {
     }
 
-    private Connection getConnection() throws SQLException {
+    public static boolean isUserOnline(UUID userId) {
+        String sql = "SELECT status FROM users WHERE internal_uuid = ?";
+
+        try (Connection conn = getConnection();
+             PreparedStatement stmt = conn.prepareStatement(sql)) {
+            stmt.setObject(1, userId);
+            ResultSet rs = stmt.executeQuery();
+
+            if (rs.next()) {
+                String status = rs.getString("status");
+                return "online".equalsIgnoreCase(status);
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        return false;
+    }
+
+
+
+    private static Connection getConnection() throws SQLException {
         return ConnectionDb.connect();
     }
 
+    public static String getLastSeen(UUID userId) {
+        String sql = "SELECT last_seen FROM users WHERE internal_uuid = ?";
+
+        try (Connection conn = getConnection();
+             PreparedStatement stmt = conn.prepareStatement(sql)) {
+            stmt.setObject(1, userId);
+            ResultSet rs = stmt.executeQuery();
+
+            if (rs.next()) {
+                Timestamp lastSeen = rs.getTimestamp("last_seen");
+                if (lastSeen != null) {
+                    return lastSeen.toLocalDateTime().toString();
+                }
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        return "Unknown";
+    }
+
+
     public User findByUserId(String userId) {
         String query = "SELECT * FROM users WHERE user_id = ?";
 

src/main/java/org/to/telegramfinalproject/Models/ChatEntry.java

@@ -37,6 +37,10 @@ public class ChatEntry {
 
     }
 
+    public ChatEntry() {
+
+    }
+
     // 🟩 گتر و ستر جدید
     public boolean isOwner() {
         return isOwner;
@@ -54,7 +58,6 @@ public class ChatEntry {
         isAdmin = admin;
     }
 
-    // سایر گترها
     public UUID getId() {
         return internalId;
     }
@@ -88,14 +91,21 @@ public class ChatEntry {
         this.permissions = permissions;
     }
 
-    private boolean archived = false;
-
-    public boolean isArchived() {
-        return archived;
+    public void setName(String name) {this.name = name;
     }
 
-    public void setArchived(boolean archived) {
-        this.archived = archived;
+    public void setDisplayId(String id) {this.displayId = id;
     }
 
+    public void setImageUrl(String image_url) {this.imageUrl = image_url;
+    }
+
+    public void setType(String type) {this.type =type;
+    }
+
+    public void setId(String internalId) {this.internalId = UUID.fromString(internalId);
+    }
+
+
+
 }

src/main/java/org/to/telegramfinalproject/Models/ResponseModel.java

@@ -6,6 +6,8 @@ public class ResponseModel {
     private String status;
     private String message;
     private JSONObject data;
+    private String requestId;
+
 
 
     public ResponseModel(String status, String message) {
@@ -29,4 +31,20 @@ public class ResponseModel {
     }
 
     public JSONObject getData() {return this.data;}
+
+    public void setRequestId(String requestId) {
+        this.requestId = requestId;
+    }
+
+
+    public JSONObject toJson() {
+        JSONObject json = new JSONObject();
+        json.put("status", this.status);
+        json.put("message", this.message);
+        json.put("data", this.data != null ? this.data : JSONObject.NULL);
+        if (this.requestId != null) {
+            json.put("request_id", this.requestId);
+        }
+        return json;
+    }
 }

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

@@ -176,7 +176,7 @@ public class RealTimeEventDispatcher {
 
     public static void notifyAddedToChat(String type, UUID chatId, String chatName, String imageUrl, UUID userId) {
         JSONObject data = new JSONObject();
-        data.put("chat_type", type); // group یا channel
+        data.put("chat_type", type);
         data.put("chat_id", chatId.toString());
         data.put("chat_name", chatName);
         data.put("image_url", imageUrl);
@@ -246,5 +246,63 @@ public class RealTimeEventDispatcher {
         broadcastToUsers(contacts, event);
     }
 
+    public static void sendGroupOrChannelUpdate(String type, UUID chatId, String name, String imageUrl, String description, List<UUID> affectedUsers) {
+        JSONObject data = new JSONObject();
+        data.put("chat_type", type);
+        data.put("chat_id", chatId.toString());
+        data.put("name", name);
+        data.put("image_url", imageUrl);
+        data.put("description", description != null ? description : "");
+
+        JSONObject event = new JSONObject();
+        event.put("action", "chat_updated");
+        event.put("data", data);
+
+        broadcastToUsers(affectedUsers, event);
+    }
+
+
+    public static void notifyBecameAdmin(String type, UUID chatId, String chatName, String imageUrl, UUID userId) {
+        JSONObject data = new JSONObject();
+        data.put("chat_type", type); // group or channel
+        data.put("chat_id", chatId.toString());
+        data.put("chat_name", chatName);
+        data.put("image_url", imageUrl);
+
+        JSONObject event = new JSONObject();
+        event.put("action", "became_admin");
+        event.put("data", data);
+
+        sendToUser(userId, event);
+    }
+
+
+    public static void notifyRemovedAdminFromChat(String type, UUID chatId, String chatName, String imageUrl, UUID userId) {
+        JSONObject data = new JSONObject();
+        data.put("chat_type", type);
+        data.put("chat_id", chatId.toString());
+        data.put("chat_name", chatName);
+        data.put("image_url", imageUrl);
+
+        JSONObject event = new JSONObject();
+        event.put("action", "removed_admin");
+        event.put("data", data);
+
+        sendToUser(userId, event);
+    }
+
+
+    public static void sendOwnershipTransferred(String type, UUID chatId, String chatName, List<UUID> affectedUsers) {
+        JSONObject data = new JSONObject();
+        data.put("chat_type", type);         // "group" or "channel"
+        data.put("chat_id", chatId.toString());
+        data.put("chat_name", chatName);
+
+        JSONObject event = new JSONObject();
+        event.put("action", "ownership_transferred");
+        event.put("data", data);
+
+        broadcastToUsers(affectedUsers, event);
+    }
 
 }

src/main/java/org/to/telegramfinalproject/UI/LoginForm.java

@@ -0,0 +1,107 @@
+package org.to.telegramfinalproject.UI;
+
+
+import javafx.fxml.FXML;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
+import javafx.scene.control.Alert;
+import javafx.scene.control.Button;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.stage.Stage;
+import org.json.JSONObject;
+import org.to.telegramfinalproject.Client.ClientConnection;
+import org.to.telegramfinalproject.Database.userDatabase;
+import org.to.telegramfinalproject.Models.User;
+import org.to.telegramfinalproject.Security.PasswordHashing;
+
+import java.io.IOException;
+
+public class LoginForm {
+
+    @FXML
+    private Button loginButton;
+    @FXML
+    private Button backButton;
+    @FXML private TextField usernameField;
+    @FXML private PasswordField passwordField;
+
+    private ClientConnection connection;
+
+    @FXML
+    public void initialize() {
+
+        try {
+            connection = new ClientConnection("localhost", 8000);
+        } catch (Exception e) {
+            System.out.println("Could not connect to server: " + e.getMessage());
+        }
+
+        loginButton.setOnAction(e -> {
+            String username = usernameField.getText();
+            String password = passwordField.getText();
+
+            JSONObject request = new JSONObject();
+            request.put("action", "login");
+            request.put("user_id", JSONObject.NULL);
+            request.put("username", username);
+            request.put("password", password);
+            request.put("profile_name", JSONObject.NULL);
+            if (connection!=null) {
+                connection.send(request.toString());
+            }
+            userDatabase userDb = new userDatabase();
+            User user = userDb.findByUsername(username);
+
+            if(!userDb.existsByUsername(username)){
+                Alert alert = new Alert(Alert.AlertType.ERROR, "Invalid username");
+                alert.show();
+            }
+            else if(!PasswordHashing.verify(password,user.getPassword())){
+                Alert alert = new Alert(Alert.AlertType.ERROR, "Invalid password");
+                alert.show();
+            }
+            else if(!PasswordHashing.verify(password,user.getPassword()) && !userDb.existsByUsername(username)){
+                Alert alert = new Alert(Alert.AlertType.ERROR, "Invalid password and username");
+                alert.show();
+            }
+            else{
+                try {
+                    String responseStr = connection.receive();
+                    JSONObject response = new JSONObject(responseStr);
+                    System.out.println("Status: " + response.getString("status"));
+                    System.out.println("Message: " + response.getString("message"));
+                    Alert alert = new Alert(Alert.AlertType.INFORMATION, " Message: " + response.getString("message"));
+                    alert.show();
+                } catch (Exception ex) {
+                    Alert alert = new Alert(Alert.AlertType.ERROR, "Error receiving response: " + ex.getMessage());
+                    alert.show();
+                }
+            }
+        });
+
+        backButton.setOnAction(e -> {
+            switchScene("login_view.fxml");
+        });
+
+
+    }
+
+    private void switchScene(String fxmlFile) {
+        try {
+
+            FXMLLoader loader = new FXMLLoader(getClass().getResource("/org/to/telegramfinalproject/" + fxmlFile));
+            Parent root = loader.load();
+
+
+            Stage stage = (Stage) backButton.getScene().getWindow();
+            stage.setScene(new Scene(root));
+            stage.show();
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}
+

src/main/java/org/to/telegramfinalproject/UI/RegisterForm.java

@@ -0,0 +1,110 @@
+package org.to.telegramfinalproject.UI;
+
+
+import javafx.fxml.FXML;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
+import javafx.scene.control.Alert;
+import javafx.scene.control.Button;
+import javafx.scene.control.PasswordField;
+import javafx.scene.control.TextField;
+import javafx.stage.Stage;
+import org.json.JSONObject;
+import org.to.telegramfinalproject.Client.ClientConnection;
+import org.to.telegramfinalproject.Database.userDatabase;
+
+import java.io.IOException;
+
+public class RegisterForm {
+    @FXML
+    private Button submitButton;
+    @FXML
+    private Button backButton;
+    @FXML private TextField userIdField;
+    @FXML private TextField usernameField;
+    @FXML private TextField profileNameField;
+    @FXML private PasswordField passwordField;
+    @FXML private PasswordField confirmPasswordField;
+
+
+
+    private ClientConnection connection;
+
+    @FXML
+    public void initialize() {
+
+        try {
+            connection = new ClientConnection("localhost", 8000);
+        } catch (Exception e) {
+            System.out.println("Could not connect to server: " + e.getMessage());
+        }
+
+        submitButton.setOnAction(e -> {
+            String userID = userIdField.getText();
+            String username = usernameField.getText();
+            String profile_name = profileNameField.getText();
+            String password = passwordField.getText();
+            String confirmPass =confirmPasswordField.getText();
+            JSONObject request = new JSONObject();
+            String passwordRegex = "\\b(?=[^\\s]*[A-Z])(?=[^\\s]*[a-z])(?=[^\\s]*\\d)(?=[^\\s]*[!@#$%^&*])[^\\s]{8,}\\b";
+
+            userDatabase userDb = new userDatabase();
+            if(password.equals(confirmPass) && password.matches(passwordRegex) && !userDb.existsByUserId(userID)&& !userDb.existsByUsername(username)){
+                try {
+                    request.put("action", "register");
+                    request.put("user_id", userID);
+                    request.put("username", username);
+                    request.put("password", password);
+                    request.put("profile_name", profile_name);
+                    connection.send(request.toString());
+                    Alert alert = new Alert(Alert.AlertType.INFORMATION, "Registration is successful");
+                    alert.show();
+
+                } catch (Exception ex) {
+                    Alert alert = new Alert(Alert.AlertType.ERROR, "Error receiving response: " + ex.getMessage());
+                    alert.show();
+                }
+
+            }
+            else if(!password.equals(confirmPass) && password.matches(passwordRegex)) {
+                Alert alert = new Alert(Alert.AlertType.ERROR, "Password doesn't match");
+                alert.show();
+            }
+            else if(userDb.existsByUserId(userID))
+            {
+                Alert alert = new Alert(Alert.AlertType.ERROR, "User ID is already exist");
+                alert.show();
+            }
+            else if(userDb.existsByUsername(username)){
+                Alert alert = new Alert(Alert.AlertType.ERROR, "Username is already exist");
+                alert.show();
+            }
+            else {
+                Alert alert = new Alert(Alert.AlertType.ERROR, "Password isn't Strong enough");
+                alert.show();
+            }
+        });
+
+        backButton.setOnAction(e -> {
+            switchScene("login_view.fxml");
+        });
+    }
+
+    private void switchScene(String fxmlFile) {
+        try {
+
+            FXMLLoader loader = new FXMLLoader(getClass().getResource("/org/to/telegramfinalproject/" + fxmlFile));
+            Parent root = loader.load();
+
+
+            Stage stage = (Stage) backButton.getScene().getWindow();
+            stage.setScene(new Scene(root));
+            stage.show();
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}
+