diff --git a/LuminousSales/Business/Business/Interfaces/IStockController.cs b/LuminousSales/Business/Business/Interfaces/IStockController.cs
new file mode 100644
index 0000000..809b18d
--- /dev/null
+++ b/LuminousSales/Business/Business/Interfaces/IStockController.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Business.Business.Sales
+{
+    interface IStockController<T>
+    {
+        ICollection<T> GetAll();
+        T GetById(int id);
+        T GetByName(string name);
+        void AddProduct(T product);
+        void LoadProductByName(T product);
+        void LoadProductById(int id);
+        void Sale(int id);
+        void Sale(string name);
+
+    }
+}
diff --git a/LuminousSales/Business/Business/Sales/AddStock.cs b/LuminousSales/Business/Business/Sales/AddStock.cs
deleted file mode 100644
index e53e8c9..0000000
--- a/LuminousSales/Business/Business/Sales/AddStock.cs
+++ /dev/null
@@ -1,36 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-using Microsoft.EntityFrameworkCore;
-using Models;
-using Models.Models;
-
-namespace Business.Business.Sales
-{
-    public class AddStock
-    {
-        private LuminousContext productContext;
-
-        public void AddProduct(Product product)
-        {
-            using (productContext = new LuminousContext())
-            {
-                productContext.Product.Add(product);
-                productContext.SaveChanges();
-
-            }
-            
-        }
-        public void AddStocks(Stock stock)
-        {
-            using (productContext = new LuminousContext())
-            {
-                
-                productContext.Stock.Add(stock);
-                productContext.SaveChanges();
-            }
-        }
-
-       
-    }
-}
diff --git a/LuminousSales/Business/Business/Sales/Sales.cs b/LuminousSales/Business/Business/Sales/Sales.cs
deleted file mode 100644
index e7bb1b1..0000000
--- a/LuminousSales/Business/Business/Sales/Sales.cs
+++ /dev/null
@@ -1,27 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-using Models;
-
-namespace Business.Business.Sales
-{
-    public class Sales
-    {
-        private LuminousContext productContext;
-        public void Sale(int id)
-        {
-            using (productContext = new LuminousContext())
-            {
-                var product = productContext.Product.Find(id);
-                if (product != null)
-                {
-                    productContext.Product.Remove(product);
-                    productContext.SaveChanges();
-                }
-            }
-        }
-
-
-
-    }
-}
diff --git a/LuminousSales/Business/Business/Sales/StockController.cs b/LuminousSales/Business/Business/Sales/StockController.cs
new file mode 100644
index 0000000..4632ba5
--- /dev/null
+++ b/LuminousSales/Business/Business/Sales/StockController.cs
@@ -0,0 +1,104 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Microsoft.EntityFrameworkCore;
+using Models;
+using Models.Models;
+
+namespace Business.Business.Sales
+{
+    public class StockController : IStockController<Product>
+    {
+        private LuminousContext context;
+
+
+        public ICollection<Product> GetAll()
+        {
+            using (context = new LuminousContext())
+            {
+                return context.Product.ToList();
+            }
+            
+        }
+
+        public Product GetById(int id)
+        {
+            using (context = new LuminousContext())
+            {
+                return context.Product.Find(id);
+            }
+        }
+
+        public void AddProduct(Product product)
+        {
+            using (context = new LuminousContext())
+            {
+             
+                context.Product.Add(product);
+                context.SaveChanges();
+
+            }
+            
+        }
+
+        public void LoadProductById(int id)
+        {
+            using (context = new LuminousContext())
+            {
+                var item = context.Product.Find(id);
+                if (item != null)
+                {
+                    context.Entry(item).CurrentValues.SetValues(id);
+                    context.SaveChanges();
+                }
+            }
+        }
+
+        public void LoadProductByName(Product product)
+        {
+            using (context = new LuminousContext())
+            {
+                var item = context.Product.Find(product.Id);
+                if (item !=null)
+                {
+                    context.Entry(item).CurrentValues.SetValues(product);
+                    context.SaveChanges();
+                }
+            }
+        }
+
+        public void Sale(int id)
+        {
+            using (context = new LuminousContext())
+            {
+                var product = context.Product.Find(id);
+                if (product != null)
+                {
+                    context.Product.Remove(product);
+                    context.SaveChanges();
+                }
+            }
+        }
+
+        public void Sale(string name)
+        {
+            using (context = new LuminousContext())
+            {
+                var product = context.Product.Find(name);
+                if (product !=null)
+                {
+                    context.Product.Remove(product);
+                    context.SaveChanges();
+                }
+            }
+        }
+
+        public Product GetByName(string name)
+        {
+            throw new NotImplementedException();
+        }
+    }
+
+}
+