fix the bug of Tracking Number Available Qty

fix the bug of Tracking Number Available Qty ( stock moves =>  move lines => Tracking Number)

modules/axelor-open-suite/axelor-stock/src/main/java/com/axelor/apps/stock/db/repo/TrackingNumberManagementRepository.java

@@ -47,8 +47,8 @@ public class TrackingNumberManagementRepository extends TrackingNumberRepository
 
           if (stockLocation != null) {
             BigDecimal availableQty =
-                stockLocationLineService.getAvailableQty(
-                    stockLocation, trackingNumber.getProduct());
+                stockLocationLineService.getTrackingNumberAvailableQty(
+                      stockLocation, trackingNumber);
                     
             json.put("$availableQty", availableQty);
           }

modules/axelor-open-suite/axelor-stock/src/main/java/com/axelor/apps/stock/service/StockLocationLineService.java

@@ -246,4 +246,15 @@ public interface StockLocationLineService {
    * @param stockMoveLine the move line responsible for the WAP change.
    */
   void updateWap(StockLocationLine stockLocationLine, BigDecimal wap, StockMoveLine stockMoveLine);
+  
+  
+  /**
+   * Allow to get the available qty of product for a given Tracking Number.
+   *
+   * @param stockLocation
+   * @param trackingNumber
+   * @return
+   */
+  public BigDecimal getTrackingNumberAvailableQty(
+      StockLocation stockLocation, TrackingNumber trackingNumber);
 }

modules/axelor-open-suite/axelor-stock/src/main/java/com/axelor/apps/stock/service/StockLocationLineServiceImpl.java

@@ -741,4 +741,18 @@ public class StockLocationLineServiceImpl implements StockLocationLineService {
             stockLocationLine.getUnit(),
             stockMoveLine));
   }
+  
+  @Override
+  public BigDecimal getTrackingNumberAvailableQty(
+      StockLocation stockLocation, TrackingNumber trackingNumber) {
+    StockLocationLine detailStockLocationLine =
+        getDetailLocationLine(stockLocation, trackingNumber.getProduct(), trackingNumber);
+
+    BigDecimal availableQty = BigDecimal.ZERO;
+
+    if (detailStockLocationLine != null) {
+      availableQty = detailStockLocationLine.getCurrentQty();
+    }
+    return availableQty;
+  }
 }