added Review Feature

backend/controllers/recommendation.js

@@ -6,20 +6,34 @@ exports.RecommondationByUserId = async (req, res) => {
   try {
     const [data, fields] = await db.execute(
       `
+      WITH RankedImages AS (
+          SELECT
+              P.ProductID,
+              P.Name AS ProductName,
+              P.Price,
+              P.Date AS DateUploaded,
+              U.Name AS SellerName,
+              I.URL AS ProductImage,
+              C.Name AS Category,
+              ROW_NUMBER() OVER (PARTITION BY P.ProductID ORDER BY I.URL) AS RowNum
+          FROM Product P
+          JOIN Image_URL I ON P.ProductID = I.ProductID
+          JOIN User U ON P.UserID = U.UserID
+          JOIN Category C ON P.CategoryID = C.CategoryID
+          JOIN Recommendation R ON P.ProductID = R.RecommendedProductID
+          WHERE R.UserID = ?
+      )
       SELECT
-          P.ProductID,
-          P.Name AS ProductName,
-          P.Price,
-          P.Date AS DateUploaded,
-          U.Name AS SellerName,
-          I.URL AS ProductImage,
-          C.Name AS Category
-      FROM Product P
-      JOIN Image_URL I ON P.ProductID = I.ProductID
-      JOIN User U ON P.UserID = U.UserID
-      JOIN Category C ON P.CategoryID = C.CategoryID
-      JOIN Recommendation R  ON P.ProductID = R.RecommendedProductID
-      Where R.UserID = ?;`,
+          ProductID,
+          ProductName,
+          Price,
+          DateUploaded,
+          SellerName,
+          ProductImage,
+          Category
+      FROM RankedImages
+      WHERE RowNum = 1;
+      `,
       [id],
     );
 
@@ -37,3 +51,64 @@ exports.RecommondationByUserId = async (req, res) => {
     });
   }
 };
+
+// Add this to your existing controller file
+exports.submitReview = async (req, res) => {
+  const { productId, reviewerName, rating, comment } = req.body;
+
+  // Validate required fields
+  if (!productId || !reviewerName || !rating || !comment) {
+    return res.status(400).json({
+      success: false,
+      message: "Missing required fields",
+    });
+  }
+
+  try {
+    // Insert the review into the database
+    const [result] = await db.execute(
+      `
+      INSERT INTO Review (
+        ProductID,
+        ReviewerName,
+        Rating,
+        Comment,
+        ReviewDate
+      ) VALUES (?, ?, ?, ?, NOW())
+      `,
+      [productId, reviewerName, rating, comment],
+    );
+
+    // Get the inserted review id
+    const reviewId = result.insertId;
+
+    // Fetch the newly created review to return to client
+    const [newReview] = await db.execute(
+      `
+      SELECT
+        ReviewID as id,
+        ProductID,
+        ReviewerName,
+        Rating,
+        Comment,
+        ReviewDate
+      FROM Review
+      WHERE ReviewID = ?
+      `,
+      [reviewId],
+    );
+
+    res.status(201).json({
+      success: true,
+      message: "Review submitted successfully",
+      data: newReview[0],
+    });
+  } catch (error) {
+    console.error("Error submitting review:", error);
+    return res.status(500).json({
+      success: false,
+      message: "Database error occurred",
+      error: error.message,
+    });
+  }
+};