updating products

backend/controllers/product.js

@@ -32,11 +32,49 @@ exports.addProduct = async (req, res) => {
   }
 };
 
+exports.removeProduct = async (req, res) => {
+  const { userID, productID } = req.body;
+  console.log(userID);
+
+  try {
+    // First delete images
+    await db.execute(`DELETE FROM Image_URL WHERE ProductID = ?`, [productID]);
+    await db.execute(`DELETE FROM History WHERE ProductID = ?`, [productID]);
+    await db.execute(`DELETE FROM Favorites WHERE ProductID = ?`, [productID]);
+    await db.execute(`DELETE FROM Product_Category WHERE ProductID = ?`, [
+      productID,
+    ]);
+    await db.execute(`DELETE FROM Product_Category WHERE ProductID = ?`, [
+      productID,
+    ]);
+    await db.execute(`DELETE FROM Transaction WHERE ProductID = ?`, [
+      productID,
+    ]);
+    await db.execute(
+      `DELETE FROM Recommendation WHERE RecommendedProductID = ?`,
+      [productID],
+    );
+
+    // Then delete the product
+    await db.execute(`DELETE FROM Product WHERE UserID = ? AND ProductID = ?`, [
+      userID,
+      productID,
+    ]);
+
+    res.json({
+      success: true,
+      message: "Product removed successfully",
+    });
+  } catch (error) {
+    console.error("Error removing product:", error);
+    return res.json({ error: "Could not remove product" });
+  }
+};
+
 exports.addFavorite = async (req, res) => {
   const { userID, productID } = req.body;
   console.log(userID);
   try {
-    // Use parameterized query to prevent SQL injection
     const [result] = await db.execute(
       `INSERT INTO Favorites (UserID, ProductID) VALUES (?, ?)`,
       [userID, productID],
@@ -72,6 +110,60 @@ exports.removeFavorite = async (req, res) => {
   }
 };
 
+exports.updateProduct = async (req, res) => {
+  const { productId } = req.params;
+  const { name, description, price, category, images } = req.body;
+
+  console.log(productId);
+
+  const connection = await db.getConnection();
+  try {
+    await connection.beginTransaction();
+
+    // Step 1: Check if the product exists
+    const [checkProduct] = await connection.execute(
+      "SELECT * FROM Product WHERE ProductID = ?",
+      [productId],
+    );
+    if (checkProduct.length === 0) {
+      await connection.rollback();
+      return res.status(404).json({ error: "Product not found" });
+    }
+
+    // Step 2: Update the product
+    await connection.execute(
+      `
+      UPDATE Product
+      SET Name = ?, Description = ?, Price = ?, CategoryID = ?
+      WHERE ProductID = ?
+      `,
+      [name, description, price, category, productId],
+    );
+
+    // Step 3: Delete existing images
+    await connection.execute(`DELETE FROM Image_URL WHERE ProductID = ?`, [
+      productId,
+    ]);
+
+    // Step 4: Insert new image URLs
+    for (const imageUrl of images) {
+      await connection.execute(
+        `INSERT INTO Image_URL (ProductID, URL) VALUES (?, ?)`,
+        [productId, imageUrl],
+      );
+    }
+
+    await connection.commit();
+    res.json({ success: true, message: "Product updated successfully" });
+  } catch (error) {
+    await connection.rollback();
+    console.error("Update product error:", error);
+    res.status(500).json({ error: "Failed to update product" });
+  } finally {
+    connection.release();
+  }
+};
+
 exports.myProduct = async (req, res) => {
   const { userID } = req.body;
 
@@ -253,33 +345,3 @@ exports.getProductById = async (req, res) => {
     });
   }
 };
-
-// db_con.query(
-//   "SELECT ProductID FROM product WHERE ProductID = ?",
-//   [productID],
-//   (err, results) => {
-//     if (err) {
-//       console.error("Error checking product:", err);
-//       return res.json({ error: "Database error" });
-//     }
-
-//     if (results.length === 0) {
-//       return res.json({ error: "Product does not exist" });
-//     }
-//   },
-// );
-
-// db_con.query(
-//   "INSERT INTO Favorites (UserID, ProductID) VALUES (?, ?)",
-//   [userID, productID],
-//   (err, result) => {
-//     if (err) {
-//       console.error("Error adding favorite product:", err);
-//       return res.json({ error: "Could not add favorite product" });
-//     }
-//     res.json({
-//       success: true,
-//       message: "Product added to favorites successfully",
-//     });
-//   },
-// );