maade it so sales display points earned

android/app/src/main/java/com/example/petstoremobile/fragments/listfragments/detailfragments/SaleDetailFragment.java

@@ -111,6 +111,7 @@ public class SaleDetailFragment extends Fragment {
                 binding.llLoyaltyPoints.setVisibility(View.GONE);
                 binding.cbUseLoyaltyPoints.setChecked(false);
             }
+            updateTotal();
         });
     }
 
@@ -420,6 +421,15 @@ public class SaleDetailFragment extends Fragment {
         }
         
         binding.tvSaleDetailTotal.setText("Total: $" + String.format(Locale.getDefault(), "%.2f", total));
+
+        CustomerDTO customer = viewModel.getSelectedCustomerData().getValue();
+        if (customer != null && !viewModel.isViewOnly()) {
+            int pointsToEarn = total.max(BigDecimal.ZERO).intValue();
+            binding.tvPointsToEarn.setText("+" + pointsToEarn + " pts");
+            binding.llPointsToEarn.setVisibility(View.VISIBLE);
+        } else {
+            binding.llPointsToEarn.setVisibility(View.GONE);
+        }
     }
 
     private void saveSale() {

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

@@ -444,6 +444,30 @@
                             android:textColor="@color/accent_coral"
                             android:layout_gravity="end"
                             android:layout_marginTop="12dp"/>
+
+                        <LinearLayout
+                            android:id="@+id/llPointsToEarn"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:orientation="horizontal"
+                            android:layout_gravity="end"
+                            android:layout_marginTop="4dp"
+                            android:visibility="gone">
+                            <TextView
+                                android:layout_width="wrap_content"
+                                android:layout_height="wrap_content"
+                                android:text="Points to earn: "
+                                android:textColor="#4ECDC4"
+                                android:textSize="13sp"/>
+                            <TextView
+                                android:id="@+id/tvPointsToEarn"
+                                android:layout_width="wrap_content"
+                                android:layout_height="wrap_content"
+                                android:text="+0 pts"
+                                android:textColor="#4ECDC4"
+                                android:textSize="13sp"
+                                android:textStyle="bold"/>
+                        </LinearLayout>
                     </LinearLayout>
 
                 </LinearLayout>

desktop/src/main/java/org/example/petshopdesktop/controllers/SaleController.java

@@ -199,6 +199,12 @@ public class SaleController {
     @FXML
     private Label lblLoyaltyDiscount;
 
+    @FXML
+    private HBox hbPointsToEarn;
+
+    @FXML
+    private Label lblPointsToEarn;
+
     private final ObservableList<SaleCartItem> cartItems = FXCollections.observableArrayList();
     private final ObservableList<SaleLineItem> saleItems = FXCollections.observableArrayList();
     private FilteredList<SaleLineItem> filteredSales;
@@ -389,12 +395,15 @@ public class SaleController {
 
         task.setOnSucceeded(event -> {
             selectedCustomerData = task.getValue();
-            if (selectedCustomerData != null && selectedCustomerData.getLoyaltyPoints() != null && selectedCustomerData.getLoyaltyPoints() >= 20) {
+            if (selectedCustomerData != null) {
-                lblLoyaltyPoints.setText(selectedCustomerData.getLoyaltyPoints() + " pts available");
+                int pts = selectedCustomerData.getLoyaltyPoints() != null ? selectedCustomerData.getLoyaltyPoints() : 0;
+                lblLoyaltyPoints.setText(pts + " pts available");
                 lblLoyaltyPoints.setVisible(true);
                 lblLoyaltyPoints.setManaged(true);
-                chkUseLoyaltyPoints.setVisible(true);
+                boolean canRedeem = pts >= 20;
-                chkUseLoyaltyPoints.setManaged(true);
+                chkUseLoyaltyPoints.setVisible(canRedeem);
+                chkUseLoyaltyPoints.setManaged(canRedeem);
+                if (!canRedeem) chkUseLoyaltyPoints.setSelected(false);
             } else {
                 lblLoyaltyPoints.setVisible(false);
                 lblLoyaltyPoints.setManaged(false);
@@ -701,6 +710,8 @@ public class SaleController {
             hbCouponDiscount.setManaged(false);
             hbLoyaltyDiscount.setVisible(false);
             hbLoyaltyDiscount.setManaged(false);
+            hbPointsToEarn.setVisible(false);
+            hbPointsToEarn.setManaged(false);
             cbCustomer.setValue(null);
             selectedCustomerData = null;
             lblLoyaltyPoints.setVisible(false);
@@ -875,6 +886,16 @@ public class SaleController {
         }
 
         lblCartTotal.setText(currency.format(Math.max(0, total.doubleValue())));
+
+        if (selectedCustomerData != null) {
+            int pointsToEarn = (int) Math.max(0, total.doubleValue());
+            lblPointsToEarn.setText("+" + pointsToEarn + " pts");
+            hbPointsToEarn.setVisible(true);
+            hbPointsToEarn.setManaged(true);
+        } else {
+            hbPointsToEarn.setVisible(false);
+            hbPointsToEarn.setManaged(false);
+        }
     }
 
     private BigDecimal calculateCouponDiscount(BigDecimal subtotal) {

desktop/src/main/resources/org/example/petshopdesktop/modelviews/sale-view.fxml

@@ -173,6 +173,12 @@
                                     <Label fx:id="lblCartTotal" text="" textFill="#2c3e50"><font><Font name="System Bold" size="16.0" /></font></Label>
                                  </children>
                               </HBox>
+                              <HBox fx:id="hbPointsToEarn" spacing="8.0" alignment="CENTER_LEFT" visible="false" managed="false">
+                                 <children>
+                                    <Label text="Points to earn:" textFill="#4ECDC4"><font><Font size="12.0" /></font></Label>
+                                    <Label fx:id="lblPointsToEarn" text="+0 pts" textFill="#4ECDC4"><font><Font size="12.0" /></font></Label>
+                                 </children>
+                              </HBox>
                            </children>
                         </VBox>
                         <FlowPane hgap="8.0" prefWrapLength="220.0" vgap="8.0">