demo seed change 7

services/inventory/app/repositories/stock_movement_repository.py

@@ -284,9 +284,11 @@ class StockMovementRepository(BaseRepository[StockMovement, StockMovementCreate,
             raise
 
     async def get_waste_movements(
-        self, 
+        self,
         tenant_id: UUID,
         days_back: Optional[int] = None,
+        start_date: Optional[datetime] = None,
+        end_date: Optional[datetime] = None,
         skip: int = 0,
         limit: int = 100
     ) -> List[StockMovement]:
@@ -298,16 +300,24 @@ class StockMovementRepository(BaseRepository[StockMovement, StockMovementCreate,
                     self.model.movement_type == StockMovementType.WASTE
                 )
             )
-            
-            if days_back:
-                start_date = datetime.now() - timedelta(days=days_back)
-                query = query.where(self.model.movement_date >= start_date)
-            
+
+            # Prefer explicit date range over days_back
+            if start_date and end_date:
+                query = query.where(
+                    and_(
+                        self.model.movement_date >= start_date,
+                        self.model.movement_date <= end_date
+                    )
+                )
+            elif days_back:
+                calculated_start = datetime.now() - timedelta(days=days_back)
+                query = query.where(self.model.movement_date >= calculated_start)
+
             query = query.order_by(desc(self.model.movement_date)).offset(skip).limit(limit)
-            
+
             result = await self.session.execute(query)
             return result.scalars().all()
-            
+
         except Exception as e:
             logger.error("Failed to get waste movements", error=str(e), tenant_id=tenant_id)
             raise