added time stamp and sender name to android chat

android/app/src/main/java/com/example/petstoremobile/adapters/MessageAdapter.java

@@ -16,7 +16,10 @@ import com.example.petstoremobile.R;
 import com.example.petstoremobile.databinding.ItemMessageReceivedBinding;
 import com.example.petstoremobile.databinding.ItemMessageSentBinding;
 import com.example.petstoremobile.models.Message;
+import java.text.SimpleDateFormat;
+import java.util.Date;
 import java.util.List;
+import java.util.Locale;
 
 public class MessageAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
@@ -29,6 +32,7 @@ public class MessageAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
 
     private final List<Message> messages;
     private Long currentUserId;
+    private Long staffId;
     private String token;
     private String baseUrl;
     private OnAttachmentClickListener attachmentClickListener;
@@ -50,6 +54,11 @@ public class MessageAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
         notifyDataSetChanged();
     }
 
+    public void setStaffId(Long id) {
+        this.staffId = id;
+        notifyDataSetChanged();
+    }
+
     public void setToken(String token) {
         this.token = token;
     }
@@ -87,7 +96,7 @@ public class MessageAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
     public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
         Message m = messages.get(position);
         if (holder instanceof SentHolder)     ((SentHolder) holder).bind(m, token, baseUrl, attachmentClickListener);
-        if (holder instanceof ReceivedHolder) ((ReceivedHolder) holder).bind(m, token, baseUrl, attachmentClickListener);
+        if (holder instanceof ReceivedHolder) ((ReceivedHolder) holder).bind(m, token, baseUrl, attachmentClickListener, staffId);
     }
 
     @Override public int getItemCount() { return messages.size(); }
@@ -99,17 +108,18 @@ public class MessageAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
             this.binding = binding;
         }
         void bind(Message m, String token, String baseUrl, OnAttachmentClickListener listener) {
-            // Check for Text
+            binding.tvSenderName.setText("You");
+            binding.tvTimestamp.setText(formatTimestamp(m.getTimestamp()));
+
             if (m.getContent() != null && !m.getContent().isEmpty()) {
                 binding.tvMessageContent.setVisibility(View.VISIBLE);
                 binding.tvMessageContent.setText(m.getContent());
             } else {
                 binding.tvMessageContent.setVisibility(View.GONE);
             }
-            
+
-            // Check for Attachment
             displayAttachment(m, binding.ivAttachment, binding.tvAttachmentName, token, baseUrl);
-            
+
             View.OnClickListener click = v -> {
                 if (listener != null) listener.onAttachmentClick(m);
             };
@@ -124,8 +134,10 @@ public class MessageAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
             super(binding.getRoot());
             this.binding = binding;
         }
-        void bind(Message m, String token, String baseUrl, OnAttachmentClickListener listener) {
+        void bind(Message m, String token, String baseUrl, OnAttachmentClickListener listener, Long staffId) {
-            // Check for Text
+            binding.tvSenderName.setText(resolveSenderName(m, staffId));
+            binding.tvTimestamp.setText(formatTimestamp(m.getTimestamp()));
+
             if (m.getContent() != null && !m.getContent().isEmpty()) {
                 binding.tvMessageContent.setVisibility(View.VISIBLE);
                 binding.tvMessageContent.setText(m.getContent());
@@ -133,7 +145,6 @@ public class MessageAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
                 binding.tvMessageContent.setVisibility(View.GONE);
             }
 
-            // Check for Attachment
             displayAttachment(m, binding.ivAttachment, binding.tvAttachmentName, token, baseUrl);
 
             View.OnClickListener click = v -> {
@@ -144,7 +155,29 @@ public class MessageAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder
         }
     }
 
-    // helper function to display the attachment to the chat bubble
+    private static String resolveSenderName(Message m, Long staffId) {
+        if ("BOT".equalsIgnoreCase(m.getSenderRole())) {
+            return (m.getSenderDisplayName() != null && !m.getSenderDisplayName().isEmpty())
+                    ? m.getSenderDisplayName() : "AI Bot";
+        }
+        if (staffId != null && staffId.equals(m.getSenderId())) {
+            return "Staff";
+        }
+        return "Customer";
+    }
+
+    private static String formatTimestamp(String timestamp) {
+        if (timestamp == null || timestamp.isEmpty()) return "";
+        try {
+            String normalized = timestamp.length() > 19 ? timestamp.substring(0, 19) : timestamp;
+            SimpleDateFormat input = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss", Locale.getDefault());
+            Date date = input.parse(normalized);
+            return new SimpleDateFormat("MMM d, HH:mm", Locale.getDefault()).format(date);
+        } catch (Exception e) {
+            return "";
+        }
+    }
+
     private static void displayAttachment(Message m, ImageView iv, TextView tvName, String token, String baseUrl) {
         // Check if there's an attachment by looking at name or mime type
         if (m.getAttachmentName() != null || m.getAttachmentMimeType() != null) {

android/app/src/main/java/com/example/petstoremobile/dtos/MessageDTO.java

@@ -34,6 +34,12 @@ public class MessageDTO {
     @SerializedName("attachmentSizeBytes")
     private Long attachmentSizeBytes;
 
+    @SerializedName("senderRole")
+    private String senderRole;
+
+    @SerializedName("senderDisplayName")
+    private String senderDisplayName;
+
     public MessageDTO() {}
 
     public Long getId() { return id; }
@@ -65,4 +71,10 @@ public class MessageDTO {
 
     public Long getAttachmentSizeBytes() { return attachmentSizeBytes; }
     public void setAttachmentSizeBytes(Long attachmentSizeBytes) { this.attachmentSizeBytes = attachmentSizeBytes; }
+
+    public String getSenderRole() { return senderRole; }
+    public void setSenderRole(String senderRole) { this.senderRole = senderRole; }
+
+    public String getSenderDisplayName() { return senderDisplayName; }
+    public void setSenderDisplayName(String senderDisplayName) { this.senderDisplayName = senderDisplayName; }
 }

android/app/src/main/java/com/example/petstoremobile/fragments/ChatFragment.java

@@ -362,6 +362,8 @@ public class ChatFragment extends Fragment implements ChatAdapter.OnChatClickLis
         binding.tvChatTitle.setText(chat.getCustomerName());
         binding.chatDrawerLayout.closeDrawer(GravityCompat.START);
 
+        messageAdapter.setStaffId(chat.getStaffId());
+
         if (stompChatManager != null) stompChatManager.subscribeToConversation(activeConversationId);
         viewModel.loadMessageHistory(activeConversationId);
     }

android/app/src/main/java/com/example/petstoremobile/models/Message.java

@@ -11,6 +11,8 @@ public class Message {
     private String attachmentName;
     private String attachmentMimeType;
     private Long attachmentSizeBytes;
+    private String senderRole;
+    private String senderDisplayName;
 
     public Message() {}
 
@@ -49,4 +51,10 @@ public class Message {
 
     public Long getAttachmentSizeBytes() { return attachmentSizeBytes; }
     public void setAttachmentSizeBytes(Long attachmentSizeBytes) { this.attachmentSizeBytes = attachmentSizeBytes; }
+
+    public String getSenderRole() { return senderRole; }
+    public void setSenderRole(String senderRole) { this.senderRole = senderRole; }
+
+    public String getSenderDisplayName() { return senderDisplayName; }
+    public void setSenderDisplayName(String senderDisplayName) { this.senderDisplayName = senderDisplayName; }
 }

android/app/src/main/java/com/example/petstoremobile/viewmodels/ChatListViewModel.java

@@ -173,6 +173,8 @@ public class ChatListViewModel extends ViewModel {
         m.setIsRead(dto.getIsRead());
         m.setAttachmentUrl(dto.getAttachmentUrl());
         m.setAttachmentName(dto.getAttachmentName());
+        m.setSenderRole(dto.getSenderRole());
+        m.setSenderDisplayName(dto.getSenderDisplayName());
         m.setAttachmentMimeType(dto.getAttachmentMimeType());
         m.setAttachmentSizeBytes(dto.getAttachmentSizeBytes());
         return m;

android/app/src/main/res/layout/item_message_received.xml

@@ -14,6 +14,15 @@
         android:padding="8dp"
         android:maxWidth="300dp">
 
+        <TextView
+            android:id="@+id/tvSenderName"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textColor="@color/text_dark"
+            android:textStyle="bold"
+            android:textSize="12sp"
+            android:layout_marginBottom="4dp"/>
+
         <ImageView
             android:id="@+id/ivAttachment"
             android:layout_width="200dp"
@@ -38,6 +47,14 @@
             android:layout_height="wrap_content"
             android:text="Received message"
             android:textColor="@color/text_dark" />
+
+        <TextView
+            android:id="@+id/tvTimestamp"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textColor="#94a3b8"
+            android:textSize="11sp"
+            android:layout_marginTop="4dp"/>
     </LinearLayout>
 
 </LinearLayout>

android/app/src/main/res/layout/item_message_sent.xml

@@ -14,6 +14,16 @@
         android:padding="8dp"
         android:maxWidth="300dp">
 
+        <TextView
+            android:id="@+id/tvSenderName"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="You"
+            android:textColor="@color/white"
+            android:textStyle="bold"
+            android:textSize="12sp"
+            android:layout_marginBottom="4dp"/>
+
         <ImageView
             android:id="@+id/ivAttachment"
             android:layout_width="200dp"
@@ -38,6 +48,14 @@
             android:layout_height="wrap_content"
             android:text="Sent message"
             android:textColor="@color/white" />
+
+        <TextView
+            android:id="@+id/tvTimestamp"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textColor="#dbeafe"
+            android:textSize="11sp"
+            android:layout_marginTop="4dp"/>
     </LinearLayout>
 
 </LinearLayout>