Connect backend to UI

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

@@ -22,6 +22,17 @@ public class ChatEntry {
     private JSONObject permissions;
 
 
+
+
+
+//    private UUID otherUserId;
+    private int unreadCount;
+    private String lastMessagePreview;
+    private String lastMessageType;      // TEXT / IMAGE / AUDIO / VIDEO / ...
+    private UUID lastMessageSenderId;
+
+
+
     public ChatEntry(UUID internalId, String displayId, String name, String imageUrl, String type, LocalDateTime lastMessageTime) {
         this.internalId = internalId;
         this.displayId = displayId;
@@ -149,4 +160,17 @@ public class ChatEntry {
     public void setSavedMessages(boolean savedMessages) {
         this.savedMessages = savedMessages;
     }
+
+
+    public int getUnreadCount() { return unreadCount; }
+    public void setUnreadCount(int unreadCount) { this.unreadCount = unreadCount; }
+
+    public String getLastMessagePreview() { return lastMessagePreview; }
+    public void setLastMessagePreview(String lastMessagePreview) { this.lastMessagePreview = lastMessagePreview; }
+
+    public String getLastMessageType() { return lastMessageType; }
+    public void setLastMessageType(String lastMessageType) { this.lastMessageType = lastMessageType; }
+
+    public UUID getLastMessageSenderId() { return lastMessageSenderId; }
+    public void setLastMessageSenderId(UUID lastMessageSenderId) { this.lastMessageSenderId = lastMessageSenderId; }
 }

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

@@ -186,6 +186,12 @@ public class JsonUtil {
             obj.put("is_owner", entry.isOwner());
             obj.put("is_admin", entry.isAdmin());
             obj.put("is_saved_messages", entry.isSavedMessages());
+            obj.put("unread_count", entry.getUnreadCount());
+            obj.put("last_message_preview", entry.getLastMessagePreview());
+            obj.put("last_message_type", entry.getLastMessageType());
+            obj.put("last_message_sender_id",
+                    entry.getLastMessageSenderId() != null ? entry.getLastMessageSenderId().toString() : JSONObject.NULL);
+
 
             jsonArray.put(obj);
         }

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

@@ -125,6 +125,9 @@ public class Message {
         this.edited_at = editedAt;
     }
 
+    public Message() {
+
+    }
 
 
     // ✅ Getters & Setters
@@ -203,4 +206,6 @@ public class Message {
         return is_deleted_globally;
     }
 
+    public void receiver_id(UUID receiverId) {this.receiver_id = receiverId;
+    }
 }