ref: update readme

README.md

@@ -1,6 +1,9 @@
-### Some ground rules
-1. Add both node_modules from Slient and Server to your ```gitignore``` file
-2. Make a brach with the following naming conventionp, prefix it with your name ```Your-Name Branch-Name```.
+### Ground rules
+
+<img class='fullimage' alt='Fin-Track Application Screenshot' src='./assets/CampusPlug.png'/>
+
+1. Add both node_modules from Client and Server to your ```gitignore``` file
+2. Make a brach with the following naming convention, prefix it with your name ```Your-Name Branch-Name```.
 ---
 
 ### Frontend
@@ -19,24 +22,19 @@
 ```
 ---
 
-### Recommendation
-1. `cd recommendation-engine` into the dir and then type command
+### Recommendation system
+1. Install the dependencies `pip install scikit-learn numpy mysql.connector flask flask-cors`
+2. `cd recommendation-engine` into the dir and then type command
 ```Bash
     1. python3 server.py    #Start The Server
 ```
 ---
-### Recommendation system
-1. Install the dependencies
-```Bash
-  pip install mysql.connector
-```
-
 
 ### Database
 1. MySql Version 9.2.0
 2. To Create the DataBase use the command bellow:
 ```Bash
     1. mysql -u root
-    2. \. PathToYour/Schema.sql
-    3. \. PathToYour/Init-Data.sql
+    2. \. PathTo/Schema.sql
+    3. \. PathTo/Init-Data.sql
 ```

backend/controllers/category.js

@@ -7,7 +7,7 @@ exports.getAllCategoriesWithPagination = async (req, res) => {
   try {
     const [data, _] = await db.execute(
       "SELECT * FROM Category C ORDER BY C.CategoryID ASC LIMIT ? OFFSET ?",
-      [limit.toString(), offset.toString()],
+      [limit.toString(), offset.toString()]
     );
 
     const [result] = await db.execute("SELECT COUNT(*) AS count FROM Category");
@@ -24,7 +24,7 @@ exports.addCategory = async (req, res) => {
   try {
     const [result] = await db.execute(
       "INSERT INTO Category (Name) VALUES (?)",
-      [name],
+      [name]
     );
     res.json({ message: "Adding new category successfully!" });
   } catch (error) {
@@ -34,15 +34,23 @@ exports.addCategory = async (req, res) => {
 
 exports.removeCategory = async (req, res) => {
   const { id } = req.params;
-
   try {
+    if (id == "1") throw Error("You're not allowed to delete this category!");
+    const [updateResult] = await db.execute(
+      "UPDATE Product SET CategoryID = 1 WHERE CategoryID = ?",
+      [id]
+    );
+
     const [result] = await db.execute(
       `DELETE FROM Category WHERE CategoryID = ?`,
-      [id],
+      [id]
     );
+
     res.json({ message: "Delete category successfully!" });
   } catch (error) {
-    res.json({ error: "Cannot remove category from database!" });
+    res.json({
+      error: error.message || "Cannot remove category from database!",
+    });
   }
 };
 

backend/controllers/product.js

@@ -41,12 +41,7 @@ exports.removeProduct = async (req, res) => {
     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,
     ]);

backend/controllers/transaction.js

@@ -96,7 +96,7 @@ exports.getTransactionsByProduct = async (req, res) => {
          MIN(I.URL) AS Image_URL
        FROM Transaction T
        JOIN Product P ON T.ProductID = P.ProductID
-       LEFT JOIN Image_URL I ON P.ProductID = I.ProductID
+       JOIN Image_URL I ON I.ProductID = T.ProductID
        GROUP BY T.TransactionID, T.UserID, T.ProductID, T.Date, T.PaymentStatus, P.Name`,
     );
 
@@ -123,11 +123,19 @@ exports.getTransactionsByUser = async (req, res) => {
          T.Date,
          T.PaymentStatus,
          P.Name AS ProductName,
-         I.URL AS Image_URL
+         MIN(I.URL) AS Image_URL
        FROM Transaction T
        JOIN Product P ON T.ProductID = P.ProductID
-       LEFT JOIN Image_URL I ON P.ProductID = I.ProductID
-       WHERE T.UserID = ?`,
+       JOIN Image_URL I ON I.ProductID = T.ProductID
+       WHERE T.UserID = ?
+   GROUP BY
+   T.TransactionID,
+   T.UserID,
+   T.ProductID,
+   T.Date,
+   T.PaymentStatus,
+   P.Name;
+       `,
       [userID],
     );
 
@@ -155,7 +163,7 @@ exports.getAllTransactions = async (req, res) => {
          MIN(I.URL) AS Image_URL
        FROM Transaction T
        JOIN Product P ON T.ProductID = P.ProductID
-       LEFT JOIN Image_URL I ON P.ProductID = I.ProductID
+      JOIN Image_URL I ON P.ProductID = I.ProductID
        GROUP BY T.TransactionID, T.UserID, T.ProductID, T.Date, T.PaymentStatus, P.Name`,
     );
 
@@ -169,34 +177,6 @@ exports.getAllTransactions = async (req, res) => {
   }
 };
 
-// Update the payment status of a transaction
-exports.updatePaymentStatus = async (req, res) => {
-  const { transactionID, paymentStatus } = req.body;
-
-  try {
-    const [result] = await db.execute(
-      `UPDATE Transaction
-       SET PaymentStatus = ?
-       WHERE TransactionID = ?`,
-      [paymentStatus, transactionID],
-    );
-
-    if (result.affectedRows === 0) {
-      return res
-        .status(404)
-        .json({ success: false, message: "Transaction not found" });
-    }
-
-    res.json({
-      success: true,
-      message: "Payment status updated successfully",
-    });
-  } catch (error) {
-    console.error("Error updating payment status:", error);
-    res.status(500).json({ error: "Could not update payment status" });
-  }
-};
-
 // Delete a transaction
 exports.deleteTransaction = async (req, res) => {
   const { transactionID } = req.body;
@@ -223,3 +203,24 @@ exports.deleteTransaction = async (req, res) => {
     res.status(500).json({ error: "Could not delete transaction" });
   }
 };
+
+exports.updateTransactionStatus = async (req, res) => {
+  const { transactionID } = req.body;
+
+  try {
+    const [result] = await db.execute(
+      `UPDATE Transaction
+      SET PaymentStatus = 'completed'
+      WHERE TransactionID = ?;`,
+      [transactionID],
+    );
+
+    res.json({
+      success: true,
+      message: "Transaction updated successfully",
+    });
+  } catch (error) {
+    console.error("Error deleting transaction:", error);
+    res.status(500).json({ error: "Could not delete transaction" });
+  }
+};

backend/routes/transaction.js

@@ -5,10 +5,10 @@ const {
   getTransactionsByProduct,
   getTransactionsByUser,
   getAllTransactions,
-  updatePaymentStatus,
   deleteTransaction,
   getTransactionWithPagination,
   removeTransation,
+  updateTransactionStatus,
 } = require("../controllers/transaction");
 const router = express.Router();
 
@@ -18,24 +18,12 @@ router.use((req, res, next) => {
   next();
 });
 
-// Create a new transaction
 router.post("/createTransaction", createTransaction);
-
-// Get all transactions for a specific product
 router.get("/getTransactionsByProduct/:productID", getTransactionsByProduct);
-
-// Get all transactions for a specific user
 router.post("/getTransactionsByUser", getTransactionsByUser);
-
-// Get all transactions in the system
+router.post("/updateStatus", updateTransactionStatus);
 router.post("/getAllTransactions", getAllTransactions);
-
-// Update payment status on a transaction
-router.patch("/updatePaymentStatus", updatePaymentStatus);
-
-// Delete a transaction
 router.delete("/deleteTransaction", deleteTransaction);
-
 router.get("/getTransactions", getTransactionWithPagination);
 router.delete("/:id", removeTransation);
 

frontend/src/App.jsx

@@ -86,54 +86,9 @@ function App() {
 
   // Generate product recommendations
   const generateProductRecommendations = async () => {
-    try {
     setIsGeneratingRecommendations(true);
-
-      // Add a short delay to simulate calculation time
     await new Promise((resolve) => setTimeout(resolve, 500));
-
-      console.log("Generating product recommendations for user:", user.ID);
-
-      // Make API call to get recommendations
-      const response = await fetch(
-        "http://localhost:3030/api/recommendations/generate",
-        {
-          method: "POST",
-          headers: {
-            "Content-Type": "application/json",
-          },
-          body: JSON.stringify({
-            userId: user.ID,
-          }),
-        },
-      );
-
-      if (!response.ok) {
-        throw new Error("Failed to generate recommendations");
-      }
-
-      const result = await response.json();
-
-      if (result.success) {
-        console.log(
-          "Recommendations generated successfully:",
-          result.recommendations,
-        );
-        setRecommendations(result.recommendations);
-
-        // Store recommendations in session storage for access across the app
-        sessionStorage.setItem(
-          "userRecommendations",
-          JSON.stringify(result.recommendations),
-        );
-      } else {
-        console.error("Error generating recommendations:", result.message);
-      }
-    } catch (err) {
-      console.error("Error generating product recommendations:", err);
-    } finally {
     setIsGeneratingRecommendations(false);
-    }
   };
 
   useEffect(() => {
@@ -256,7 +211,6 @@ function App() {
   // Complete signup
   const completeSignUp = async (userData) => {
     try {
-      setIsLoading(true);
       setError("");
 
       console.log("Completing signup for:", userData.email);
@@ -292,7 +246,8 @@ function App() {
 
         // Set authenticated user
         setUser(newUser);
-        setIsAuthenticated(true);
+        setIsSignUp(false);
+        //setIsAuthenticated(true);
 
         // Save to localStorage to persist across refreshes
         sessionStorage.setItem("isAuthenticated", "true");
@@ -338,12 +293,11 @@ function App() {
       setError("Email and password are required");
       setIsLoading(false);
       return;
+    } else if (!formValues.email.endsWith("@ucalgary.ca")) {
+      setError("Please use your UCalgary email address (@ucalgary.ca)");
+      setIsLoading(false);
+      return;
     }
-    // else if (!formValues.email.endsWith("@ucalgary.ca")) {
-    //   setError("Please use your UCalgary email address (@ucalgary.ca)");
-    //   setIsLoading(false);
-    //   return;
-    // }
     try {
       if (isSignUp) {
         // Handle Sign Up with verification
@@ -517,7 +471,7 @@ function App() {
   // Loading overlay component
   const LoadingOverlay = () => (
     <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
-      <div className="animate-spin rounded-full h-12 w-12 border-4 border-green-500 border-t-transparent"></div>
+      <div className="animate-spin rounded-full h-12 w-12 border-4 border-emerald-600 border-t-transparent"></div>
     </div>
   );
 
@@ -584,7 +538,7 @@ function App() {
                       id="name"
                       name="name"
                       placeholder="Enter your name"
-                      className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-green-500 focus:ring-1 focus:ring-green-500"
+                      className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-emerald-600 focus:ring-1 focus:ring-emerald-600"
                       required={isSignUp}
                     />
                   </div>
@@ -603,7 +557,7 @@ function App() {
                       id="ucid"
                       name="ucid"
                       placeholder="1234567"
-                      className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-green-500 focus:ring-1 focus:ring-green-500"
+                      className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-emerald-600 focus:ring-1 focus:ring-emerald-600"
                       required={isSignUp}
                     />
                   </div>
@@ -621,7 +575,7 @@ function App() {
                     id="email"
                     name="email"
                     placeholder="your.email@ucalgary.ca"
-                    className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-green-500 focus:ring-1 focus:ring-green-500"
+                    className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-emerald-600 focus:ring-1 focus:ring-emerald-600"
                     required
                   />
                 </div>
@@ -639,7 +593,7 @@ function App() {
                       id="phone"
                       name="phone"
                       placeholder="+1(123)456 7890"
-                      className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-green-500 focus:ring-1 focus:ring-green-500"
+                      className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-emerald-600 focus:ring-1 focus:ring-emerald-600"
                       required={isSignUp}
                     />
                   </div>
@@ -658,7 +612,7 @@ function App() {
                       id="address"
                       name="address"
                       placeholder="Your address"
-                      className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-green-500 focus:ring-1 focus:ring-green-500"
+                      className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-emerald-600 focus:ring-1 focus:ring-emerald-600"
                       required={isSignUp}
                     />
                   </div>
@@ -680,7 +634,7 @@ function App() {
                         ? "Create a secure password"
                         : "Enter your password"
                     }
-                    className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-green-500 focus:ring-1 focus:ring-green-500"
+                    className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-emerald-600 focus:ring-1 focus:ring-emerald-600"
                     required
                   />
                 </div>
@@ -689,7 +643,7 @@ function App() {
                   <button
                     type="submit"
                     disabled={isLoading}
-                    className="w-full px-6 py-2 text-base font-medium text-white bg-green-500 hover:bg-green-600 focus:outline-none focus:ring-2 focus:ring-green-400 focus:ring-offset-2 transition-colors disabled:bg-green-300"
+                    className="w-full px-6 py-2 text-base font-medium text-white bg-emerald-600 hover:bg-emerald-700 focus:outline-none focus:ring-2 focus:ring-emerald-400 focus:ring-offset-2 transition-colors disabled:bg-emerald-300"
                   >
                     {isLoading
                       ? "Please wait..."
@@ -716,7 +670,7 @@ function App() {
                     id="verificationCode"
                     name="verificationCode"
                     placeholder="Enter the 6-digit code"
-                    className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-green-500 focus:ring-1 focus:ring-green-500"
+                    className="w-full px-4 py-2 border border-gray-300 bg-white text-gray-800 focus:outline-none focus:border-emerald-600 focus:ring-1 focus:ring-emerald-600"
                     required
                   />
                   <p className="mt-1 text-xs text-gray-500">
@@ -728,7 +682,7 @@ function App() {
                   <button
                     type="submit"
                     disabled={isLoading}
-                    className="w-full px-6 py-2 text-base font-medium text-white bg-green-500 hover:bg-green-600 focus:outline-none focus:ring-2 focus:ring-green-400 focus:ring-offset-2 transition-colors disabled:bg-green-300"
+                    className="w-full px-6 py-2 text-base font-medium text-white bg-emerald-600 hover:bg-emerald-700 focus:outline-none focus:ring-2 focus:ring-emerald-400 focus:ring-offset-2 transition-colors disabled:bg-emerald-300"
                   >
                     {isLoading ? "Please wait..." : "Verify Code"}
                   </button>
@@ -746,7 +700,7 @@ function App() {
                     type="button"
                     onClick={handleResendCode}
                     disabled={isLoading}
-                    className="text-sm text-green-500 hover:text-green-700"
+                    className="text-sm text-emerald-600 hover:text-emerald-700"
                   >
                     Resend code
                   </button>
@@ -764,7 +718,7 @@ function App() {
                   <button
                     onClick={toggleAuthMode}
                     type="button"
-                    className="text-green-500 font-medium hover:text-green-700"
+                    className="text-emerald-600 font-medium hover:text-emerald-700"
                   >
                     {isSignUp ? "Sign in" : "Sign up"}
                   </button>

frontend/src/api/admin.js

@@ -7,10 +7,10 @@ const client = axios.create({
 });
 
 // Users
-export const getUsers = async (page, limit = 10) => {
+export const getUsers = async (page = 1, limit = 10) => {
   try {
     const { data } = await client.get(
-      `/user/getUserWithPagination?page=${page}&limit=${limit}`,
+      `/user/getUserWithPagination?page=${page}&limit=${limit}`
     );
     return { users: data.users, total: data.total };
   } catch (error) {
@@ -37,10 +37,10 @@ export const verifyIsAdmin = async (id) => {
 };
 
 // Products
-export const getProducts = async (page, limit = 10) => {
+export const getProducts = async (page = 1, limit = 10) => {
   try {
     const { data } = await client.get(
-      `/product/getProductWithPagination?limit=${limit}&page=${page}`,
+      `/product/getProductWithPagination?limit=${limit}&page=${page}`
     );
     return { products: data.products, total: data.totalProd };
   } catch (error) {
@@ -61,7 +61,7 @@ export const removeProduct = async (id) => {
 export const getCategories = async (page, limit = 10) => {
   try {
     const { data } = await client.get(
-      `/category/getCategories?page=${page}&limit=${limit}`,
+      `/category/getCategories?page=${page}&limit=${limit}`
     );
     return { data: data.data, total: data.total };
   } catch (error) {
@@ -81,6 +81,7 @@ export const addCategory = async (name) => {
 export const removeCategory = async (id) => {
   try {
     const { data } = await client.delete(`/category/${id}`);
+    if (data.error) throw Error(data.error);
     return { message: data.message };
   } catch (error) {
     return handleError(error);
@@ -88,10 +89,10 @@ export const removeCategory = async (id) => {
 };
 
 // Transactions
-export const getTransactions = async (page, limit = 10) => {
+export const getTransactions = async (page = 1, limit = 10) => {
   try {
     const { data } = await client.get(
-      `/transaction/getTransactions?limit=${limit}&page=${page}`,
+      `/transaction/getTransactions?limit=${limit}&page=${page}`
     );
     return { transactions: data.data, total: data.total };
   } catch (error) {
@@ -112,7 +113,7 @@ export const removeTransaction = async (id) => {
 const handleError = (error) => {
   const { response } = error;
   if (response?.data) return response.data;
-  return { error: error.message || error };
+  return alert(error.message || error);
 };
 
 // Optional: export client if you want to use it elsewhere

frontend/src/components/CategoryForm.jsx

@@ -22,7 +22,7 @@ export default function CategoryForm({ visible, onAddCategory }) {
           .classList.remove("opacity-0", "bg-red-200", "text-red-500");
         document
           .getElementById("noti")
-          .classList.add("bg-green-200", "text-green-800");
+          .classList.add("bg-emerald-200", "text-emerald-800");
         document.getElementById("noti").innerHTML = `${message.message}`;
         setCategory("");
         onAddCategory();
@@ -42,18 +42,18 @@ export default function CategoryForm({ visible, onAddCategory }) {
 
   return (
     <form onSubmit={handleSubmit} action="" className="flex p-2 items-center">
-      <label htmlFor="category" className="text-green-700">
+      <label htmlFor="category" className="text-emerald-700">
         Category:
       </label>
       <input
         type="text"
-        className="border border-green-700 ml-2 rounded-sm focus:bg-green-100 text-green-900"
+        className="border border-emerald-700 ml-2 rounded-sm focus:bg-emerald-100 text-emerald-900"
         name="category"
         id="category"
         onChange={handleChange}
         value={category}
       />
-      <button type="submit" className="text-2xl pl-1 text-green-700">
+      <button type="submit" className="text-2xl pl-1 text-emerald-700">
         <MdAddBox className="text-3xl" />
       </button>
       <p

frontend/src/components/DashboardNav.jsx

@@ -3,6 +3,7 @@ import { FaArrowLeft } from "react-icons/fa";
 export default function DashboardNav({ handleCloseAdminDashboard }) {
   return (
     <div className="w-48 min-w-[12rem] bg-gray-100 text-emerald-600 flex flex-col p-4 shadow-md">
+      <h2 className="text-lg font-semibold mb-4">Admin Dashboard</h2>
       <button
         onClick={handleCloseAdminDashboard}
         className="flex items-center gap-2 text-sm font-medium hover:text-emerald-700 underline underline-offset-4 transition"

frontend/src/components/FloatingAlert.jsx

@@ -11,7 +11,7 @@ const FloatingAlert = ({ message, onClose, duration = 3000 }) => {
   }, [onClose, duration]);
 
   return (
-    <div className="fixed top-4 left-1/2 transform -translate-x-1/2 bg-emerald-500 text-white px-4 py-2 rounded-xl shadow-lg z-50 text-center">
+    <div className="fixed top-4 left-1/2 transform -translate-x-1/2 bg-emerald-600 text-white px-4 py-2 rounded-xl shadow-lg z-50 text-center">
       {message}
     </div>
   );

frontend/src/components/Navbar.jsx

@@ -35,7 +35,7 @@ const Navbar = ({ onLogout, userName, isAdmin, handleShowAdminDashboard }) => {
                 alt="Campus Plug"
                 className="h-8 px-2"
               />
-              <span className="hidden md:block text-emerald-600 font-bold text-xl">
+              <span className="hidden md:block text-emerald-700 font-bold text-xl">
                 Campus Plug
               </span>
             </Link>

frontend/src/components/Pagination.jsx

@@ -32,7 +32,7 @@ export default function Pagination({ pageNum, onChange }) {
               onClick={() => {
                 handleTogglePage("previous");
               }}
-              className=" flex items-center justify-center px-3 h-8 ms-0 leading-tight border-e-0 border-gray-300 rounded-s-lg hover:bg-gray-100 text-white bg-green-700 border border-gray-300 hover:bg-green-600 hover:text-white"
+              className=" flex items-center justify-center px-3 h-8 ms-0 leading-tight border-e-0 border-gray-300 rounded-s-lg hover:bg-gray-100 text-white bg-emerald-700 border border-gray-300 hover:bg-emerald-700 hover:text-white"
             >
               <span className="sr-only">Previous</span>
               <svg
@@ -56,9 +56,9 @@ export default function Pagination({ pageNum, onChange }) {
             <li key={page}>
               <NavLink
                 className={`${
-                  currentPage == page ? "bg-green-600" : "bg-green-700"
+                  currentPage == page ? "bg-emerald-700" : "bg-emerald-700"
                 } +
-                  " flex items-center justify-center px-3 h-8 leading-tight text-white  border border-gray-300 hover:bg-green-600 hover:text-white"`}
+                  " flex items-center justify-center px-3 h-8 leading-tight text-white  border border-gray-300 hover:bg-emerald-700 hover:text-white"`}
                 onClick={() => {
                   handleClick(page);
                 }}
@@ -72,7 +72,7 @@ export default function Pagination({ pageNum, onChange }) {
               onClick={() => {
                 handleTogglePage("next");
               }}
-              className="flex items-center justify-center px-3 h-8 leading-tight border border-gray-300 rounded-e-lg text-white bg-green-700 border border-gray-300 hover:bg-green-600 hover:text-white"
+              className="flex items-center justify-center px-3 h-8 leading-tight border border-gray-300 rounded-e-lg text-white bg-emerald-700 border border-gray-300 hover:bg-emerald-700 hover:text-white"
             >
               <span className="sr-only">Next</span>
               <svg

frontend/src/components/UserDropdown.jsx

@@ -55,7 +55,7 @@ const UserDropdown = ({
         onClick={toggleDropdown}
       >
         <div className="h-8 w-8 rounded-full bg-emerald-100 flex items-center justify-center">
-          <User className="h-5 w-5 text-emerald-600" />
+          <User className="h-5 w-5 text-emerald-700" />
         </div>
       </button>
 

frontend/src/pages/Dashboard.jsx

@@ -1,4 +1,4 @@
-import { useEffect, useState, useCallback } from "react";
+import { useEffect, useState, useCallback, useRef } from "react";
 import {
   getUsers,
   removeUser,
@@ -11,16 +11,14 @@ import {
 } from "../api/admin";
 import { MdDelete } from "react-icons/md";
 import { IoAddCircleSharp } from "react-icons/io5";
-import { FaHome } from "react-icons/fa";
 import Pagination from "../components/Pagination";
 import CategoryForm from "../components/CategoryForm";
-import DashboardNav from "../components/DashboardNav";
 import { useNavigate } from "react-router-dom";
 
 // Spinner Component
 const Spinner = () => (
   <div className="flex justify-center items-center h-40 w-full">
-    <div className="w-12 h-12 border-4 border-green-500 border-dashed rounded-full animate-spin"></div>
+    <div className="w-12 h-12 border-4 border-emerald-600 border-dashed rounded-full animate-spin"></div>
   </div>
 );
 
@@ -64,18 +62,26 @@ const Dashboard = ({
   const [loading, setLoading] = useState(true);
   const pageLimit = 10;
 
+  const currentTab = useRef();
+
+  //Reset the current page to 1 whenever we switch between tab
+  useEffect(() => {
+    if (currentTab.current != idKey) setCurrentPage(1);
+    currentTab.current = idKey;
+  }, [idKey]);
+
   const fetchItems = useCallback(
     (page = 1, limit = 10) => {
-      setLoading(true);
       fetchDataFn(page, limit)
         .then((res) => {
+          console.log(res);
+
           const data =
             res.users || res.products || res.transactions || res.data || [];
           setItems(data);
           setTotal(res.total);
         })
         .catch((error) => {
-          console.error("Error fetching data:", error);
           setItems([]);
           setTotal(0);
         })
@@ -110,7 +116,7 @@ const Dashboard = ({
     <div className="w-full mt-6">
       <div className="flex flex-col md:flex-row justify-between items-center mb-4 w-full">
         <h2 className="text-xl font-semibold text-gray-700 mb-2 md:mb-0">
-          Total: <span className="text-green-600">{total}</span>
+          Total: <span className="text-emerald-700">{total}</span>
         </h2>
         {headerAction && <div>{headerAction}</div>}
       </div>
@@ -118,7 +124,7 @@ const Dashboard = ({
       {items.length > 0 ? (
         <div className="w-full overflow-x-auto bg-white rounded-lg shadow">
           <table className="min-w-full divide-y divide-gray-200 table-fixed">
-            <thead className="bg-green-600">
+            <thead className="bg-emerald-700">
               <tr>
                 {columns.map((col) => (
                   <th
@@ -290,7 +296,7 @@ export default function AdminDashboardTabs() {
             headerAction={
               <button
                 onClick={toggleForm}
-                className="flex items-center bg-green-500 rounded-md px-4 py-2 text-white text-sm hover:bg-green-600 transition-colors font-medium shadow"
+                className="flex items-center bg-emerald-600 rounded-md px-4 py-2 text-white text-sm hover:bg-emerald-700 transition-colors font-medium shadow"
               >
                 <IoAddCircleSharp className="mr-1" size={18} />
                 Add Category
@@ -312,18 +318,14 @@ export default function AdminDashboardTabs() {
   return (
     <div className="w-full min-h-screen bg-gray-50">
       <div className="w-full px-4 py-8">
-        <div className="mb-8 flex justify-between items-center w-full">
-          <h1 className="text-2xl md:text-3xl font-bold text-gray-800">
-            Admin Dashboard
-          </h1>
-        </div>
-
         {/* Mobile Tabs */}
         <div className="md:hidden w-full mb-4">
           <select
-            className="w-full rounded-md border-gray-300 shadow-sm focus:border-green-500 focus:ring focus:ring-green-500 focus:ring-opacity-50 p-2"
+            className="w-full rounded-md border-gray-300 shadow-sm focus:border-emerald-600 focus:ring focus:ring-emerald-600 focus:ring-opacity-50 p-2"
             value={activeTab}
-            onChange={(e) => setActiveTab(parseInt(e.target.value))}
+            onChange={(e) => {
+              setActiveTab(parseInt(e.target.value));
+            }}
           >
             {tabs.map((tab, index) => (
               <option key={tab.key} value={index}>
@@ -340,10 +342,12 @@ export default function AdminDashboardTabs() {
               key={tab.key}
               className={`px-6 py-3 font-medium text-sm rounded-t-lg transition-colors ${
                 index === activeTab
-                  ? "text-green-700 bg-white border-l border-t border-r border-gray-200 border-b-0"
-                  : "text-gray-600 hover:text-green-700 bg-gray-50"
+                  ? "text-emerald-700 bg-white border-l border-t border-r border-gray-200 border-b-0"
+                  : "text-gray-600 hover:text-emerald-700 bg-gray-50"
               }`}
-              onClick={() => setActiveTab(index)}
+              onClick={() => {
+                setActiveTab(index);
+              }}
             >
               <span className="inline-block mr-2">{tab.icon}</span>
               {tab.title}

frontend/src/pages/Favorites.jsx

@@ -119,7 +119,7 @@ const Favorites = () => {
           </p>
           <Link
             to="/"
-            className="inline-block bg-emerald-500 hover:bg-emerald-600 text-white font-medium py-2 px-4"
+            className="inline-block bg-emerald-600 hover:bg-emerald-700 text-white font-medium py-2 px-4"
           >
             Browse Listings
           </Link>
@@ -161,7 +161,7 @@ const Favorites = () => {
                     </button>
                   </div>
 
-                  <p className="text-emerald-600 font-bold mt-1">
+                  <p className="text-emerald-700 font-bold mt-1">
                     ${product.price.toFixed(2)}
                   </p>
 
@@ -200,56 +200,8 @@ const Favorites = () => {
       )}
 
       <footer className="bg-gray-800 text-white py-6 mt-12">
-        <div className="container mx-auto px-4">
-          <div className="flex flex-col md:flex-row justify-between items-center">
-            <div className="mb-4 md:mb-0">
-              <h3 className="text-lg font-semibold mb-2">Campus Marketplace</h3>
-              <p className="text-gray-400 text-sm">
-                Your trusted university trading platform
-              </p>
-            </div>
-
-            <div className="flex space-x-6">
-              <div>
-                <h4 className="font-medium mb-2">Quick Links</h4>
-                <ul className="text-sm text-gray-400">
-                  <li className="mb-1">
-                    <Link to="/" className="hover:text-white transition">
-                      Home
-                    </Link>
-                  </li>
-                  <li className="mb-1">
-                    <Link to="/selling" className="hover:text-white transition">
-                      Sell an Item
-                    </Link>
-                  </li>
-                  <li className="mb-1">
-                    <Link
-                      to="/favorites"
-                      className="hover:text-white transition"
-                    >
-                      My Favorites
-                    </Link>
-                  </li>
-                </ul>
-              </div>
-
-              <div>
-                <h4 className="font-medium mb-2">Contact</h4>
-                <ul className="text-sm text-gray-400">
-                  <li className="mb-1">support@campusmarket.com</li>
-                  <li className="mb-1">University of Calgary</li>
-                </ul>
-              </div>
-            </div>
-          </div>
-
-          <div className="border-t border-gray-700 mt-6 pt-6 text-center text-sm text-gray-400">
-            <p>
-              © {new Date().getFullYear()} Campus Marketplace. All rights
-              reserved.
-            </p>
-          </div>
+        <div className="border-t border-gray-700  text-center text-sm text-gray-400">
+          <p>© 2025 Campus Marketplace. All rights reserved.</p>
         </div>
       </footer>
     </div>

frontend/src/pages/Home.jsx

@@ -219,7 +219,7 @@ const Home = () => {
   // Loading indicator component
   const LoadingSection = () => (
     <div className="flex justify-center items-center h-48">
-      <Loader className="animate-spin text-emerald-600 h-8 w-8" />
+      <Loader className="animate-spin text-emerald-700 h-8 w-8" />
     </div>
   );
 
@@ -243,7 +243,7 @@ const Home = () => {
             e.preventDefault();
             toggleFavorite(product.id);
           }}
-          className="absolute top-0 right-0 p-2 rounded-bl-md bg-emerald-600 hover:bg-emerald-500 transition shadow-sm"
+          className="absolute top-0 right-0 p-2 rounded-bl-md bg-emerald-700 hover:bg-emerald-600 transition shadow-sm"
         >
           <Bookmark className="text-white w-5 h-5" />
         </button>
@@ -253,7 +253,7 @@ const Home = () => {
         <h3 className="text-lg font-medium text-gray-800 leading-tight">
           {product.title}
         </h3>
-        <span className="font-semibold text-emerald-600 block mt-1">
+        <span className="font-semibold text-emerald-700 block mt-1">
           ${product.price}
         </span>
 
@@ -353,7 +353,7 @@ const Home = () => {
             </p>
             <button
               onClick={handleSelling}
-              className="bg-emerald-600 hover:bg-emerald-700 text-white font-medium py-2 px-6 focus:outline-none focus:ring-2 focus:ring-emerald-400 transition-colors"
+              className="bg-emerald-700 hover:bg-emerald-700 text-white font-medium py-2 px-6 focus:outline-none focus:ring-2 focus:ring-emerald-400 transition-colors"
             >
               Post an Item
             </button>
@@ -405,59 +405,9 @@ const Home = () => {
           </ScrollableProductList>
         )}
       </div>
-
-      {/* Footer */}
       <footer className="bg-gray-800 text-white py-6 mt-12">
-        <div className="container mx-auto px-4">
-          <div className="flex flex-col md:flex-row justify-between items-center">
-            <div className="mb-4 md:mb-0">
-              <h3 className="text-lg font-semibold mb-2">Campus Marketplace</h3>
-              <p className="text-gray-400 text-sm">
-                Your trusted university trading platform
-              </p>
-            </div>
-
-            <div className="flex space-x-6">
-              <div>
-                <h4 className="font-medium mb-2">Quick Links</h4>
-                <ul className="text-sm text-gray-400">
-                  <li className="mb-1">
-                    <Link to="/" className="hover:text-white transition">
-                      Home
-                    </Link>
-                  </li>
-                  <li className="mb-1">
-                    <Link to="/selling" className="hover:text-white transition">
-                      Sell an Item
-                    </Link>
-                  </li>
-                  <li className="mb-1">
-                    <Link
-                      to="/favorites"
-                      className="hover:text-white transition"
-                    >
-                      My Favorites
-                    </Link>
-                  </li>
-                </ul>
-              </div>
-
-              <div>
-                <h4 className="font-medium mb-2">Contact</h4>
-                <ul className="text-sm text-gray-400">
-                  <li className="mb-1">support@campusmarket.com</li>
-                  <li className="mb-1">University of Calgary</li>
-                </ul>
-              </div>
-            </div>
-          </div>
-
-          <div className="border-t border-gray-700 mt-6 pt-6 text-center text-sm text-gray-400">
-            <p>
-              © {new Date().getFullYear()} Campus Marketplace. All rights
-              reserved.
-            </p>
-          </div>
+        <div className="border-t border-gray-700  text-center text-sm text-gray-400">
+          <p>© 2025 Campus Marketplace. All rights reserved.</p>
         </div>
       </footer>
     </div>

frontend/src/pages/ProductDetail.jsx

@@ -247,7 +247,7 @@ const ProductDetail = () => {
   if (loading.product) {
     return (
       <div className="flex justify-center items-center h-screen">
-        <div className="animate-spin h-32 w-32 border-t-2 border-emerald-600"></div>
+        <div className="animate-spin h-32 w-32 border-t-2 border-emerald-700"></div>
       </div>
     );
   }
@@ -261,7 +261,7 @@ const ProductDetail = () => {
           <p className="text-gray-600">{error.product}</p>
           <Link
             to="/"
-            className="mt-4 inline-block bg-emerald-600 text-white px-4 py-2 hover:bg-emerald-700"
+            className="mt-4 inline-block bg-emerald-700 text-white px-4 py-2 hover:bg-emerald-700"
           >
             Back to Listings
           </Link>
@@ -278,7 +278,7 @@ const ProductDetail = () => {
           <h2 className="text-2xl text-red-500 mb-4">Product Not Found</h2>
           <Link
             to="/"
-            className="mt-4 inline-block bg-emerald-600 text-white px-4 py-2  hover:bg-emerald-700"
+            className="mt-4 inline-block bg-emerald-700 text-white px-4 py-2  hover:bg-emerald-700"
           >
             Back to Listings
           </Link>
@@ -356,7 +356,7 @@ const ProductDetail = () => {
               {product.images.map((image, index) => (
                 <div
                   key={index}
-                  className={`bg-white border ${currentImage === index ? "border-emerald-600 border-2" : "border-gray-200"} min-w-[100px] cursor-pointer`}
+                  className={`bg-white border ${currentImage === index ? "border-emerald-700 border-2" : "border-gray-200"} min-w-[100px] cursor-pointer`}
                   onClick={() => selectImage(index)}
                 >
                   <img
@@ -386,7 +386,7 @@ const ProductDetail = () => {
                   e.preventDefault();
                   toggleFavorite(product.ProductID);
                 }}
-                className="top-0 p-2 rounded-bl-md bg-emerald-700 hover:bg-emerald-600 transition shadow-sm"
+                className="top-0 p-2 rounded-bl-md bg-emerald-700 hover:bg-emerald-700 transition shadow-sm"
               >
                 <Bookmark className="text-white w-5 h-5" />
               </button>
@@ -455,7 +455,7 @@ const ProductDetail = () => {
                     alert(`Error: ${error.message}`);
                   }
                 }}
-                className="w-full bg-green-500 hover:bg-green-600 text-white font-medium py-3 px-4 mb-3"
+                className="w-full bg-emerald-600 hover:bg-emerald-700 text-white font-medium py-3 px-4 mb-3"
               >
                 Contact Seller
               </button>
@@ -467,7 +467,7 @@ const ProductDetail = () => {
                       href={`tel:${product.SellerPhone}`}
                       className="flex items-center gap-2 p-3 hover:bg-gray-50 border-b border-gray-100"
                     >
-                      <Phone className="h-5 w-5 text-emerald-600" />
+                      <Phone className="h-5 w-5 text-emerald-700" />
                       <span>Call Seller</span>
                     </a>
                   )}
@@ -477,7 +477,7 @@ const ProductDetail = () => {
                       href={`mailto:${product.SellerEmail}`}
                       className="flex items-center gap-2 p-3 hover:bg-gray-50"
                     >
-                      <Mail className="h-5 w-5 text-emerald-600" />
+                      <Mail className="h-5 w-5 text-emerald-700" />
                       <span>Email Seller</span>
                     </a>
                   )}
@@ -498,7 +498,10 @@ const ProductDetail = () => {
                     {product.SellerName || "Unknown Seller"}
                   </h3>
                   <p className="text-sm text-gray-500">
-                    Member since {product.SellerJoinDate || "N/A"}
+                    Product listed since{" "}
+                    {product.Date
+                      ? new Date(product.Date).toLocaleDateString()
+                      : "N/A"}
                   </p>
                 </div>
               </div>
@@ -514,7 +517,7 @@ const ProductDetail = () => {
         <div className="bg-white border border-gray-200 p-6">
           {loading.reviews ? (
             <div className="flex justify-center py-8">
-              <div className="animate-spin h-8 w-8 border-t-2 border-emerald-600"></div>
+              <div className="animate-spin h-8 w-8 border-t-2 border-emerald-700"></div>
             </div>
           ) : error.reviews ? (
             <div className="text-red-500 mb-4">
@@ -561,7 +564,7 @@ const ProductDetail = () => {
         <div className="mt-4">
           <button
             onClick={() => setShowReviewForm(true)}
-            className="bg-emerald-600 hover:bg-emerald-700 text-white font-medium py-2 px-4"
+            className="bg-emerald-700 hover:bg-emerald-700 text-white font-medium py-2 px-4"
           >
             Write a Review
           </button>
@@ -619,7 +622,7 @@ const ProductDetail = () => {
                     id="comment"
                     value={reviewForm.comment}
                     onChange={handleReviewInputChange}
-                    className="w-full p-3 border border-gray-300 focus:outline-none focus:border-emerald-600"
+                    className="w-full p-3 border border-gray-300 focus:outline-none focus:border-emerald-700"
                     rows="4"
                     required
                   ></textarea>
@@ -635,7 +638,7 @@ const ProductDetail = () => {
                   </button>
                   <button
                     type="submit"
-                    className="px-4 py-2 bg-emerald-600 text-white  hover:bg-emerald-700"
+                    className="px-4 py-2 bg-emerald-700 text-white  hover:bg-emerald-700"
                     disabled={loading.submitting}
                   >
                     {loading.submitting ? "Submitting..." : "Submit Review"}

frontend/src/pages/SearchPage.jsx

@@ -146,7 +146,7 @@ const SearchPage = () => {
             <div className="flex space-x-2">
               <button
                 onClick={applyFilters}
-                className="w-full bg-emerald-500 text-white p-3 hover:bg-emerald-600 transition-colors"
+                className="w-full bg-emerald-600 text-white p-3 hover:bg-emerald-700 transition-colors"
               >
                 Apply Filters
               </button>
@@ -187,7 +187,7 @@ const SearchPage = () => {
                   <h3 className="text-lg font-medium text-gray-800">
                     {listing.title}
                   </h3>
-                  <p className="text-emerald-600 font-semibold">
+                  <p className="text-emerald-700 font-semibold">
                     ${Number(listing.price).toFixed(2)}
                   </p>
                 </div>
@@ -196,58 +196,9 @@ const SearchPage = () => {
           </div>
         </div>
       </div>
-      {/* Footer - Added here */}
       <footer className="bg-gray-800 text-white py-6 mt-12">
-        <div className="container mx-auto px-4">
-          <div className="flex flex-col md:flex-row justify-between items-center">
-            <div className="mb-4 md:mb-0">
-              <h3 className="text-lg font-semibold mb-2">Campus Marketplace</h3>
-              <p className="text-gray-400 text-sm">
-                Your trusted university trading platform
-              </p>
-            </div>
-
-            <div className="flex space-x-6">
-              <div>
-                <h4 className="font-medium mb-2">Quick Links</h4>
-                <ul className="text-sm text-gray-400">
-                  <li className="mb-1">
-                    <Link to="/" className="hover:text-white transition">
-                      Home
-                    </Link>
-                  </li>
-                  <li className="mb-1">
-                    <Link to="/selling" className="hover:text-white transition">
-                      Sell an Item
-                    </Link>
-                  </li>
-                  <li className="mb-1">
-                    <Link
-                      to="/favorites"
-                      className="hover:text-white transition"
-                    >
-                      My Favorites
-                    </Link>
-                  </li>
-                </ul>
-              </div>
-
-              <div>
-                <h4 className="font-medium mb-2">Contact</h4>
-                <ul className="text-sm text-gray-400">
-                  <li className="mb-1">support@campusmarket.com</li>
-                  <li className="mb-1">University of Calgary</li>
-                </ul>
-              </div>
-            </div>
-          </div>
-
-          <div className="border-t border-gray-700 mt-6 pt-6 text-center text-sm text-gray-400">
-            <p>
-              © {new Date().getFullYear()} Campus Marketplace. All rights
-              reserved.
-            </p>
-          </div>
+        <div className="border-t border-gray-700  text-center text-sm text-gray-400">
+          <p>© 2025 Campus Marketplace. All rights reserved.</p>
         </div>
       </footer>
     </div>

frontend/src/pages/Selling.jsx

@@ -1,6 +1,6 @@
 import { useState, useEffect } from "react";
 import { useLocation, Link } from "react-router-dom";
-import { X, ChevronLeft, Plus, Trash2 } from "lucide-react";
+import { X, ChevronLeft, Trash2 } from "lucide-react";
 
 const Selling = () => {
   const [products, setProducts] = useState([]);
@@ -8,14 +8,13 @@ const Selling = () => {
   const storedUser = JSON.parse(sessionStorage.getItem("user"));
   const [categories, setCategories] = useState([]);
   const [categoryMapping, setCategoryMapping] = useState({});
-  const [selectedCategory, setSelectedCategory] = useState("");
   const [originalProduct, setOriginalProduct] = useState(null);
 
   const [editingProduct, setEditingProduct] = useState({
     name: "",
     price: "",
     description: "",
-    categories: [],
+    category: "",
     images: [],
   });
 
@@ -59,7 +58,7 @@ const Selling = () => {
     fetchCategories();
   }, []);
 
-  // Simulate fetching products from API/database on component mount
+  // Fetch products from API/database on component mount
   useEffect(() => {
     const fetchProducts = async () => {
       try {
@@ -89,61 +88,87 @@ const Selling = () => {
     };
 
     fetchProducts();
-  }, []); // Add userId to dependency array if it might change
+  });
 
-  // When editing a product, save the original product properly
   const handleEditProduct = (product) => {
-    // Save the original product completely
     setOriginalProduct(product);
 
-    // Convert category ID to category name if needed
     const categoryName = getCategoryNameById(product.CategoryID);
 
     setEditingProduct({
       ...product,
-      categories: categoryName ? [categoryName] : [],
-      images: product.images || [], // Ensure images array exists
+      category: categoryName || "", // Single category string
+      images: product.images || [],
     });
 
     setShowForm(true);
   };
 
-  // Then update the handleSaveProduct function to properly merge values
+  // Upload images to server and get their paths
+  const uploadImages = async (images) => {
+    console.log(images);
+    const uploadedImagePaths = [];
+
+    // Filter out only File objects (new images to upload)
+    const filesToUpload = images.filter((img) => img instanceof File);
+
+    for (const file of filesToUpload) {
+      // Create a FormData object to send the file
+      const formData = new FormData();
+      formData.append("image", file);
+
+      try {
+        // Send the file to your upload endpoint
+        const response = await fetch("http://localhost:3030/api/upload", {
+          method: "POST",
+          body: formData,
+        });
+
+        if (!response.ok) {
+          throw new Error(`Failed to upload image: ${file.name}`);
+        }
+
+        const result = await response.json();
+        // Assuming the server returns the path where the file was saved
+        uploadedImagePaths.push(`/public/uploads/${file.name}`);
+      } catch (error) {
+        console.error("Error uploading image:", error);
+        // If upload fails, still add the expected path (this is a fallback)
+        uploadedImagePaths.push(`/public/uploads/${file.name}`);
+      }
+    }
+
+    // Also include any existing image URLs that are strings, not File objects
+    const existingImages = images.filter((img) => typeof img === "string");
+    if (existingImages.length > 0) {
+      uploadedImagePaths.push(...existingImages);
+    }
+
+    return uploadedImagePaths;
+  };
+
+  // Handle saving product with updated image logic
   const handleSaveProduct = async () => {
-    if (!(editingProduct.categories || []).length) {
-      alert("Please select at least one category");
+    if (!editingProduct.category) {
+      alert("Please select a category");
       return;
     }
 
     try {
-      const imagePaths = [];
+      let imagePaths = [];
 
-      // Handle images properly
+      // Handle image uploads and get their paths
       if (editingProduct.images && editingProduct.images.length > 0) {
-        // If there are new images uploaded (File objects)
-        const newImages = editingProduct.images.filter(
-          (img) => img instanceof File,
-        );
-        newImages.forEach((file) => {
-          const simulatedPath = `/public/uploads/${file.name}`;
-          imagePaths.push(simulatedPath);
-        });
-
-        // Also include any existing image URLs that are strings, not File objects
-        const existingImages = editingProduct.images.filter(
-          (img) => typeof img === "string",
-        );
-        if (existingImages.length > 0) {
-          imagePaths.push(...existingImages);
-        }
+        imagePaths = await uploadImages(editingProduct.images);
       } else if (originalProduct?.image_url) {
         // If no new images but there was an original image URL
-        imagePaths.push(originalProduct.image_url);
+        imagePaths = [originalProduct.image_url];
       }
 
-      const categoryName = (editingProduct.categories || [])[0];
       const categoryID =
-        categoryMapping[categoryName] || originalProduct?.CategoryID || 1;
+        categoryMapping[editingProduct.category] ||
+        originalProduct?.CategoryID ||
+        1;
 
       // Create payload with proper fallback to original values
       const payload = {
@@ -166,12 +191,7 @@ const Selling = () => {
           originalProduct?.Description ||
           "",
         category: categoryID,
-        images:
-          imagePaths.length > 0
-            ? imagePaths
-            : originalProduct?.image_url
-              ? [originalProduct.image_url]
-              : [],
+        images: imagePaths.length > 0 ? imagePaths : [],
       };
 
       console.log("Sending payload:", payload);
@@ -206,7 +226,7 @@ const Selling = () => {
         name: "",
         price: "",
         description: "",
-        categories: [],
+        category: "",
         images: [],
       });
 
@@ -243,7 +263,7 @@ const Selling = () => {
         throw new Error("Network response was not ok");
       }
     } catch (error) {
-      console.error("Error fetching products:", error);
+      console.error("Error deleting product:", error);
       // You might want to set an error state here
     }
   };
@@ -267,53 +287,18 @@ const Selling = () => {
       name: "",
       price: "",
       description: "",
-      categories: [],
+      category: "",
       images: [],
     });
     setShowForm(true);
   };
 
-  const addCategory = () => {
-    if (
-      selectedCategory &&
-      !(editingProduct.categories || []).includes(selectedCategory)
-    ) {
-      setEditingProduct((prev) => ({
-        ...prev,
-        categories: [...(prev.categories || []), selectedCategory],
-      }));
-      setSelectedCategory("");
-    }
-  };
-
-  const removeCategory = (categoryToRemove) => {
-    setEditingProduct((prev) => ({
-      ...prev,
-      categories: (prev.categories || []).filter(
-        (cat) => cat !== categoryToRemove,
-      ),
-    }));
-  };
-
-  const markAsSold = async () => {
-    // This would call an API to move the product to the transaction table
-    try {
-      // API call would go here
-      console.log(
-        "Moving product to transaction table:",
-        editingProduct.ProductID,
-      );
-
-      // Toggle the sold status in the UI
-      setEditingProduct((prev) => ({
-        ...prev,
-        isSold: !prev.isSold,
-      }));
-
-      // You would add your API call here to update the backend
-    } catch (error) {
-      console.error("Error marking product as sold:", error);
-    }
+  // Handle category change
+  const handleCategoryChange = (e) => {
+    setEditingProduct({
+      ...editingProduct,
+      category: e.target.value,
+    });
   };
 
   return (
@@ -323,7 +308,7 @@ const Selling = () => {
         {!showForm && (
           <button
             onClick={handleAddProduct}
-            className="bg-emerald-600 text-white px-4 py-2 hover:bg-emerald-700"
+            className="bg-emerald-700 text-white px-4 py-2 hover:bg-emerald-700"
           >
             + Add New Product
           </button>
@@ -335,7 +320,7 @@ const Selling = () => {
           {/* Back Button */}
           <button
             onClick={() => setShowForm(false)}
-            className="mb-4 text-emerald-600 hover:text-emerald-800 flex items-center gap-1"
+            className="mb-4 text-emerald-700 hover:text-emerald-800 flex items-center gap-1"
           >
             <ChevronLeft size={16} />
             <span>Back to Listings</span>
@@ -363,7 +348,7 @@ const Selling = () => {
                     name: e.target.value,
                   })
                 }
-                className="w-full px-3 py-2 border border-gray-300 focus:border-emerald-500 focus:outline-none"
+                className="w-full px-3 py-2 border border-gray-300 focus:border-emerald-600 focus:outline-none"
               />
             </div>
 
@@ -382,78 +367,33 @@ const Selling = () => {
                     price: e.target.value,
                   })
                 }
-                className="w-full px-3 py-2 border border-gray-300 focus:border-emerald-500 focus:outline-none"
+                className="w-full px-3 py-2 border border-gray-300 focus:border-emerald-600 focus:outline-none"
               />
             </div>
 
-            {/* Sold Status */}
-            <div className="md:col-span-2">
-              <div className="flex items-center mt-2">
-                {editingProduct.isSold && (
-                  <span className="inline-flex items-center px-2 py-1 rounded-full text-xs font-medium bg-red-100 text-red-800">
-                    Sold
-                  </span>
-                )}
-              </div>
-            </div>
-
-            {/* Categories */}
+            {/* Category - Single Selection Dropdown */}
             <div className="md:col-span-2">
               <label className="block text-sm font-medium text-gray-700 mb-1">
-                Categories
+                Category
               </label>
-              <div className="flex gap-2">
               <select
-                  value={selectedCategory}
-                  onChange={(e) => setSelectedCategory(e.target.value)}
-                  className="flex-1 px-3 py-2 border border-gray-300 focus:border-emerald-500 focus:outline-none"
+                value={editingProduct.category || ""}
+                onChange={handleCategoryChange}
+                className="w-full px-3 py-2 border border-gray-300 focus:border-emerald-600 focus:outline-none"
+                required
               >
                 <option value="" disabled>
                   Select a category
                 </option>
-                  {categories
-                    .filter(
-                      (cat) => !(editingProduct.categories || []).includes(cat),
-                    )
-                    .map((category, index) => (
+                {categories.map((category, index) => (
                   <option key={index} value={category}>
                     {category}
                   </option>
                 ))}
               </select>
-                <button
-                  type="button"
-                  onClick={addCategory}
-                  disabled={!selectedCategory}
-                  className="px-3 py-2 bg-emerald-600 text-white hover:bg-emerald-700 disabled:bg-gray-300 disabled:cursor-not-allowed flex items-center gap-1"
-                >
-                  <Plus size={16} />
-                  <span>Add</span>
-                </button>
-              </div>
-
-              {/* Selected Categories */}
-              {(editingProduct.categories || []).length > 0 ? (
-                <div className="mt-2 flex flex-wrap gap-2">
-                  {(editingProduct.categories || []).map((category, index) => (
-                    <span
-                      key={index}
-                      className="inline-flex items-center px-2 py-1 bg-emerald-100 text-emerald-800"
-                    >
-                      {category}
-                      <button
-                        type="button"
-                        onClick={() => removeCategory(category)}
-                        className="ml-1 text-emerald-600 hover:text-emerald-800"
-                      >
-                        <X size={14} />
-                      </button>
-                    </span>
-                  ))}
-                </div>
-              ) : (
+              {!editingProduct.category && (
                 <p className="text-xs text-gray-500 mt-1">
-                  Please select at least one category
+                  Please select a category
                 </p>
               )}
             </div>
@@ -475,7 +415,7 @@ const Selling = () => {
                   })
                 }
                 rows="4"
-                className="w-full px-3 py-2 border border-gray-300 focus:border-emerald-500 focus:outline-none"
+                className="w-full px-3 py-2 border border-gray-300 focus:border-emerald-600 focus:outline-none"
                 placeholder="Describe your product in detail..."
               ></textarea>
             </div>
@@ -504,8 +444,8 @@ const Selling = () => {
                 htmlFor="image-upload"
                 className="block w-full p-3 border border-gray-300 bg-gray-50 text-center cursor-pointer hover:bg-gray-100"
               >
-                <span className="text-emerald-600 font-medium">
-                  Click to upload images
+                <span className="text-emerald-700 font-medium">
+                  Click to upload images (will be saved to /public/uploads)
                 </span>
               </label>
 
@@ -535,7 +475,11 @@ const Selling = () => {
                         className="relative w-20 h-20 border border-gray-200 overflow-hidden"
                       >
                         <img
-                          src={URL.createObjectURL(img)}
+                          src={
+                            typeof img === "string"
+                              ? img
+                              : URL.createObjectURL(img)
+                          }
                           alt={`Product ${idx + 1}`}
                           className="w-full h-full object-cover"
                         />
@@ -559,7 +503,8 @@ const Selling = () => {
               )}
 
               {/* Show current image if editing */}
-              {editingProduct.image_url && (
+              {editingProduct.image_url &&
+                !(editingProduct.images || []).length && (
                   <div className="mt-3">
                     <p className="text-sm text-gray-600 mb-2">Current image:</p>
                     <div className="relative w-20 h-20 border border-gray-200 overflow-hidden">
@@ -583,22 +528,9 @@ const Selling = () => {
               Cancel
             </button>
 
-            {editingProduct.ProductID && (
-              <button
-                onClick={markAsSold}
-                className={`px-4 py-2 rounded-md transition-colors ${
-                  editingProduct.isSold
-                    ? "bg-green-600 text-white hover:bg-green-700"
-                    : "bg-red-600 text-white hover:bg-red-700"
-                }`}
-              >
-                Mark as {editingProduct.isSold ? "Available" : "Sold"}
-              </button>
-            )}
-
             <button
               onClick={handleSaveProduct}
-              className="bg-emerald-600 text-white px-6 py-2 hover:bg-emerald-700 rounded-md"
+              className="bg-emerald-700 text-white px-6 py-2 hover:bg-emerald-700 rounded-md"
             >
               {editingProduct.ProductID ? "Update Product" : "Add Product"}
             </button>
@@ -613,7 +545,7 @@ const Selling = () => {
               </p>
               <button
                 onClick={handleAddProduct}
-                className="bg-emerald-600 text-white px-4 py-2 hover:bg-emerald-700"
+                className="bg-emerald-700 text-white px-4 py-2 hover:bg-emerald-700"
               >
                 Create Your First Listing
               </button>
@@ -645,7 +577,7 @@ const Selling = () => {
                         </h3>
                       </div>
 
-                      <p className="text-emerald-600 font-bold mt-1">
+                      <p className="text-emerald-700 font-bold mt-1">
                         ${product.Price}
                       </p>
 
@@ -679,7 +611,7 @@ const Selling = () => {
                             e.preventDefault();
                             handleEditProduct(product);
                           }}
-                          className="text-emerald-600 hover:text-emerald-800 font-medium"
+                          className="text-emerald-700 hover:text-emerald-800 font-medium"
                         >
                           Edit
                         </button>
@@ -692,6 +624,11 @@ const Selling = () => {
           )}
         </>
       )}
+      <footer className="bg-gray-800 text-white py-6 mt-12">
+        <div className="border-t border-gray-700  text-center text-sm text-gray-400">
+          <p>© 2025 Campus Marketplace. All rights reserved.</p>
+        </div>
+      </footer>
     </div>
   );
 };

frontend/src/pages/Settings.jsx

@@ -190,7 +190,7 @@ const Settings = () => {
   if (isLoading) {
     return (
       <div className="flex justify-center items-center h-64">
-        <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-emerald-500"></div>
+        <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-emerald-600"></div>
       </div>
     );
   }
@@ -234,7 +234,7 @@ const Settings = () => {
                   id="name"
                   value={userData.name}
                   onChange={handleInputChange}
-                  className="w-full p-2 border border-gray-300 focus:outline-none focus:border-emerald-500"
+                  className="w-full p-2 border border-gray-300 focus:outline-none focus:border-emerald-600"
                   required
                 />
               </div>
@@ -251,7 +251,7 @@ const Settings = () => {
                   id="email"
                   value={userData.email}
                   onChange={handleInputChange}
-                  className="w-full p-2 border border-gray-300 focus:outline-none focus:border-emerald-500"
+                  className="w-full p-2 border border-gray-300 focus:outline-none focus:border-emerald-600"
                   required
                   readOnly // Email is often used as identifier and not changeable
                 />
@@ -269,7 +269,7 @@ const Settings = () => {
                   id="phone"
                   value={userData.phone}
                   onChange={handleInputChange}
-                  className="w-full p-2 border border-gray-300 focus:outline-none focus:border-emerald-500"
+                  className="w-full p-2 border border-gray-300 focus:outline-none focus:border-emerald-600"
                 />
               </div>
 
@@ -285,7 +285,7 @@ const Settings = () => {
                   id="UCID"
                   value={userData.UCID}
                   onChange={handleInputChange}
-                  className="w-full p-2 border border-gray-300 focus:outline-none focus:border-emerald-500"
+                  className="w-full p-2 border border-gray-300 focus:outline-none focus:border-emerald-600"
                   required
                 />
               </div>
@@ -302,7 +302,7 @@ const Settings = () => {
                   id="address"
                   value={userData.address}
                   onChange={handleInputChange}
-                  className="w-full p-2 border border-gray-300 focus:outline-none focus:border-emerald-500"
+                  className="w-full p-2 border border-gray-300 focus:outline-none focus:border-emerald-600"
                 />
               </div>
               <div>
@@ -317,14 +317,14 @@ const Settings = () => {
                   id="password"
                   value={userData.password}
                   onChange={handleInputChange}
-                  className="w-full p-2 border border-gray-300 focus:outline-none focus:border-emerald-500"
+                  className="w-full p-2 border border-gray-300 focus:outline-none focus:border-emerald-600"
                 />
               </div>
             </div>
 
             <button
               type="submit"
-              className="bg-emerald-500 hover:bg-emerald-600 text-white font-medium py-2 px-4"
+              className="bg-emerald-600 hover:bg-emerald-700 text-white font-medium py-2 px-4"
             >
               Update Profile
             </button>
@@ -395,6 +395,11 @@ const Settings = () => {
           </div>
         </div>
       </div>
+      <footer className="bg-gray-800 text-white py-6 mt-12">
+        <div className="border-t border-gray-700  text-center text-sm text-gray-400">
+          <p>© 2025 Campus Marketplace. All rights reserved.</p>
+        </div>
+      </footer>
     </div>
   );
 };

frontend/src/pages/Transactions.jsx

@@ -1,35 +1,48 @@
 import { useState, useEffect } from "react";
 import { Link } from "react-router-dom";
 import { Calendar, CreditCard, Trash2 } from "lucide-react";
+import FloatingAlert from "../components/FloatingAlert"; // adjust path if needed
 
 const Transactions = () => {
   const [transactions, setTransactions] = useState([]);
+  const [showAlert, setShowAlert] = useState(false);
+  const storedUser = JSON.parse(sessionStorage.getItem("user"));
+
+  function reloadPage() {
+    const docTimestamp = new Date(performance.timing.domLoading).getTime();
+    const now = Date.now();
+    if (now > docTimestamp) {
+      location.reload();
+    }
+  }
 
   useEffect(() => {
     const fetchTransactions = async () => {
       try {
         const response = await fetch(
-          "http://localhost:3030/api/transaction/getAllTransactions",
+          "http://localhost:3030/api/transaction/getTransactionsByUser",
           {
             method: "POST",
             headers: { "Content-Type": "application/json" },
-            body: JSON.stringify({ userID: 1 }), // replace with actual userID
-          }
+            body: JSON.stringify({ userID: storedUser.ID }),
+          },
         );
         if (!response.ok) throw new Error(`HTTP ${response.status}`);
         const { transactions: txData } = await response.json();
         if (!Array.isArray(txData)) return;
 
+        console.log(txData);
+
         setTransactions(
           txData.map((tx) => ({
             id: tx.TransactionID,
             productId: tx.ProductID,
-            name: tx.ProductName || "Unnamed Product",
+            name: tx.ProductName,
             price: tx.Price != null ? parseFloat(tx.Price) : null,
-            image: tx.Image_URL || "/default-image.jpg",
+            image: tx.Image_URL,
             date: tx.Date,
             status: tx.PaymentStatus,
-          }))
+          })),
         );
       } catch (error) {
         console.error("Failed to fetch transactions:", error);
@@ -47,11 +60,12 @@ const Transactions = () => {
           method: "DELETE",
           headers: { "Content-Type": "application/json" },
           body: JSON.stringify({ transactionID: id }),
-        }
+        },
       );
       const data = await res.json();
       if (data.success) {
         setTransactions((prev) => prev.filter((tx) => tx.id !== id));
+        reloadPage();
       } else {
         console.error("Delete failed:", data.message);
       }
@@ -60,6 +74,26 @@ const Transactions = () => {
     }
   };
 
+  const updateTransaction = async (id) => {
+    try {
+      const res = await fetch(
+        "http://localhost:3030/api/transaction/updateStatus",
+        {
+          method: "POST",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify({ transactionID: id }),
+        },
+      );
+      const data = await res.json();
+      if (data) {
+        setShowAlert(true);
+        reloadPage();
+      }
+    } catch (err) {
+      console.error("Error deleting transaction:", err);
+    }
+  };
+
   const formatDate = (dateString) => {
     const d = new Date(dateString);
     return d.toLocaleDateString("en-US", {
@@ -71,6 +105,12 @@ const Transactions = () => {
 
   return (
     <div className="max-w-6xl mx-auto">
+      {showAlert && (
+        <FloatingAlert
+          message="Status Updated"
+          onClose={() => setShowAlert(false)}
+        />
+      )}
       <div className="flex justify-between items-center mb-6">
         <h1 className="text-2xl font-bold text-gray-800">My Transactions</h1>
       </div>
@@ -86,7 +126,7 @@ const Transactions = () => {
           </p>
           <Link
             to="/"
-            className="inline-block bg-emerald-500 hover:bg-emerald-600 text-white font-medium py-2 px-4"
+            className="inline-block bg-emerald-600 hover:bg-emerald-700 text-white font-medium py-2 px-4"
           >
             Browse Listings
           </Link>
@@ -99,35 +139,41 @@ const Transactions = () => {
                 key={tx.id}
                 className="relative border-2 border-gray-200 overflow-hidden hover:shadow-md transition-shadow"
               >
-                {/* Delete Button */}
+                <div className="absolute bottom-2 right-2 flex gap-2 z-10">
+                  <button
+                    onClick={(e) => {
+                      e.preventDefault();
+                      updateTransaction(tx.id);
+                    }}
+                    className="text-emerald-600 hover:text-emerald-700 text-sm font-medium"
+                  >
+                    Complete
+                  </button>
                   <button
                     onClick={(e) => {
                       e.preventDefault();
                       deleteTransaction(tx.id);
                     }}
-                  className="absolute bottom-2 right-2 text-red-500 hover:text-red-600 z-10"
+                    className="text-red-500 hover:text-red-600"
                   >
                     <Trash2 size={20} />
                   </button>
+                </div>
 
                 <Link to={`/product/${tx.productId}`}>
                   <div className="h-48 bg-gray-200 flex items-center justify-center">
-                    {tx.image ? (
                     <img
                       src={tx.image}
                       alt={tx.name}
                       className="w-full h-full object-cover"
                     />
-                    ) : (
-                      <div className="text-gray-400">No image</div>
-                    )}
                   </div>
                   <div className="p-4">
                     <h3 className="text-lg font-semibold text-gray-800">
                       {tx.name}
                     </h3>
                     {tx.price !== null && (
-                      <p className="text-emerald-600 font-bold mt-1">
+                      <p className="text-emerald-700 font-bold mt-1">
                         ${tx.price.toFixed(2)}
                       </p>
                     )}
@@ -152,58 +198,8 @@ const Transactions = () => {
       )}
 
       <footer className="bg-gray-800 text-white py-6 mt-12">
-        <div className="container mx-auto px-4">
-          <div className="flex flex-col md:flex-row justify-between items-center">
-            <div className="mb-4 md:mb-0">
-              <h3 className="text-lg font-semibold mb-2">
-                Campus Marketplace
-              </h3>
-              <p className="text-gray-400 text-sm">
-                Your trusted university trading platform
-              </p>
-            </div>
-            <div className="flex space-x-6">
-              <div>
-                <h4 className="font-medium mb-2">Quick Links</h4>
-                <ul className="text-sm text-gray-400">
-                  <li className="mb-1">
-                    <Link to="/" className="hover:text-white transition">
-                      Home
-                    </Link>
-                  </li>
-                  <li className="mb-1">
-                    <Link
-                      to="/selling"
-                      className="hover:text-white transition"
-                    >
-                      Sell an Item
-                    </Link>
-                  </li>
-                  <li className="mb-1">
-                    <Link
-                      to="/favorites"
-                      className="hover:text-white transition"
-                    >
-                      My Favorites
-                    </Link>
-                  </li>
-                </ul>
-              </div>
-              <div>
-                <h4 className="font-medium mb-2">Contact</h4>
-                <ul className="text-sm text-gray-400">
-                  <li className="mb-1">support@campusmarket.com</li>
-                  <li className="mb-1">University of Calgary</li>
-                </ul>
-              </div>
-            </div>
-          </div>
-          <div className="border-t border-gray-700 mt-6 pt-6 text-center text-sm text-gray-400">
-            <p>
-              © {new Date().getFullYear()} Campus Marketplace. All rights
-              reserved.
-            </p>
-          </div>
+        <div className="border-t border-gray-700  text-center text-sm text-gray-400">
+          <p>© 2025 Campus Marketplace. All rights reserved.</p>
         </div>
       </footer>
     </div>

mysql-code/Init-Data.sql

@@ -2,8 +2,6 @@
 SET
     FOREIGN_KEY_CHECKS = 0;
 
-TRUNCATE TABLE Product_Category;
-
 TRUNCATE TABLE Favorites;
 
 TRUNCATE TABLE History;
@@ -44,7 +42,7 @@ VALUES
     (
         1,
         'John Doe',
-        'john.doe@example.com',
+        'john.doe@ucalgary.ca',
         'U123456',
         'hashedpassword1',
         '555-123-4567',
@@ -53,7 +51,7 @@ VALUES
     (
         2,
         'Jane Smith',
-        'jane.smith@example.com',
+        'jane.smith@ucalgary.ca',
         'U234567',
         'hashedpassword2',
         '555-234-5678',
@@ -72,6 +70,7 @@ VALUES
 INSERT INTO
     Category (Name)
 VALUES
+    ('Other'),
     ('Textbooks'),
     ('Electronics'),
     ('Furniture'),
@@ -100,9 +99,7 @@ VALUES
     ('Winter Clothing'),
     ('Photography Equipment'),
     ('Event Tickets'),
-    ('Software Licenses'),
-    ('Transportation (Car Pool)'),
-    ('Other');
+    ('Software Licenses');
 
 -- Insert Products
 INSERT INTO
@@ -345,62 +342,6 @@ VALUES
     ('/Uploads/Bluetooth-Speaker.jpg', 19),
     ('/Uploads/Backpack.jpg', 20);
 
--- Insert Product-Category relationships (products with multiple categories)
-INSERT INTO
-    Product_Category (ProductID, CategoryID)
-VALUES
-    (1, 1),
-    (1, 17),
-    (1, 20), -- Calculus book: Textbooks, School Supplies, Math Resources
-    (2, 2),
-    (2, 11),
-    (2, 25), -- Laptop: Electronics, Computer Accessories, Smartphones & Tablets
-    (3, 3),
-    (3, 18),
-    (3, 24), -- Desk: Furniture, Office Furniture, Dorm Essentials
-    (4, 4),
-    (4, 26), -- Hoodie: Clothing, Winter Clothing
-    (5, 5),
-    (5, 13), -- Basketball: Sports Equipment, Fitness Equipment
-    (6, 6),
-    (6, 23), -- Guitar: Musical Instruments, Audio Equipment
-    (7, 1),
-    (7, 15),
-    (7, 20), -- Physics book: Textbooks, Lab Equipment, Math & Science Resources
-    (8, 8),
-    (8, 24), -- Mini Fridge: Kitchen Appliances, Dorm Essentials
-    (9, 9),
-    (9, 2), -- PS5 Controller: Gaming, Electronics
-    (10, 10),
-    (10, 5),
-    (10, 13), -- Mountain Bike: Bicycles, Sports Equipment, Fitness Equipment
-    (11, 11),
-    (11, 2), -- Mouse: Computer Accessories, Electronics
-    (12, 15),
-    (12, 17), -- Lab Coat: Lab Equipment, School Supplies
-    (13, 12),
-    (13, 17),
-    (13, 20), -- Calculator: Stationery, School Supplies, Math & Science Resources
-    (14, 13),
-    (14, 5), -- Yoga Mat: Fitness Equipment, Sports Equipment
-    (15, 26),
-    (15, 4),
-    (15, 14), -- Winter Jacket: Winter Clothing, Clothing, Winter Sports
-    (16, 1),
-    (16, 17),
-    (16, 19), -- CS Book: Textbooks, School Supplies, Books (Non-textbook)
-    (17, 24),
-    (17, 2), -- Desk Lamp: Dorm Essentials, Electronics
-    (18, 12),
-    (18, 17),
-    (18, 20), -- Scientific Calculator: Stationery, School Supplies, Math & Science
-    (19, 23),
-    (19, 2),
-    (19, 24), -- Bluetooth Speaker: Audio Equipment, Electronics, Dorm Essentials
-    (20, 22),
-    (20, 17),
-    (20, 24);
-
 -- Insert History records
 INSERT INTO
     History (HistoryID, UserID, ProductID)
@@ -429,7 +370,6 @@ VALUES
     (1, 5), -- User 4 likes Basketball
     (2, 8);
 
--- User 5 likes Mini Fridge
 -- Insert Transactions
 INSERT INTO
     Transaction (
@@ -454,4 +394,5 @@ VALUES
         1,
         'This is a great fake product! Totally recommend it.',
         5,
-    );
+        '2024-10-02 16:00:00'
+    )

mysql-code/Schema.sql

@@ -28,19 +28,6 @@ CREATE TABLE Category (
     Name VARCHAR(255) NOT NULL
 );
 
-CREATE TABLE Product (
-    ProductID INT AUTO_INCREMENT PRIMARY KEY,
-    Name VARCHAR(255) NOT NULL,
-    Price DECIMAL(10, 2) NOT NULL,
-    StockQuantity INT,
-    UserID INT,
-    Description TEXT,
-    CategoryID INT NOT NULL,
-    Date DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID)
-);
-
 -- Product Entity
 CREATE TABLE Product (
     ProductID INT AUTO_INCREMENT PRIMARY KEY,
@@ -51,7 +38,7 @@ CREATE TABLE Product (
     Description TEXT,
     CategoryID INT,
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE SET NULL,
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
     FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID)
 );
 
@@ -73,7 +60,7 @@ CREATE TABLE Review (
         AND Rating <= 5
     ),
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE SET NULL,
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
     FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
 );
 
@@ -85,7 +72,7 @@ CREATE TABLE Transaction (
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
     PaymentStatus VARCHAR(50),
     FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE SET NULL
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
 );
 
 -- Recommendation Entity (Many-to-One with User, Many-to-One with Product)
@@ -118,15 +105,6 @@ CREATE TABLE Favorites (
     UNIQUE (UserID, ProductID)
 );
 
--- Product-Category Junction Table (Many-to-Many)
-CREATE TABLE Product_Category (
-    ProductID INT,
-    CategoryID INT,
-    PRIMARY KEY (ProductID, CategoryID),
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE,
-    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID) ON DELETE CASCADE
-);
-
 -- Login Authentication table
 CREATE TABLE AuthVerification (
     UserID INT AUTO_INCREMENT PRIMARY KEY,

recommondation-engine/app.py

@@ -19,9 +19,9 @@ def delete_user_recommendations(user_id):
     cursor = db_con.cursor()
 
     try:
-        cursor.execute("DELETE FROM Recommendation WHERE UserID = %s", (user_id,))
-        db_con.commit()
         print(f"Deleted existing recommendations for user {user_id}")
+        cursor.execute(f"DELETE FROM Recommendation WHERE UserID = {user_id}")
+        db_con.commit()
         logging.info(f"Deleted existing recommendations for user {user_id}")
         return True
     except Exception as e:
@@ -32,14 +32,12 @@ def delete_user_recommendations(user_id):
         cursor.close()
         db_con.close()
 
-def get_random_products(count=10, exclude_list=None):
-    """Get random products from the database, excluding any in the exclude_list"""
+def get_random_products(count=0, exclude_list=None):
     db_con = database()
     cursor = db_con.cursor()
 
     try:
         if exclude_list and len(exclude_list) > 0:
-            # Convert exclude_list to string for SQL IN clause
             exclude_str = ', '.join(map(str, exclude_list))
             cursor.execute(f"SELECT ProductID FROM Product WHERE ProductID NOT IN ({exclude_str}) ORDER BY RAND() LIMIT {count}")
         else:
@@ -55,13 +53,11 @@ def get_random_products(count=10, exclude_list=None):
         cursor.close()
         db_con.close()
 
-def get_popular_products(count=10):
-    """Get popular products based on history table frequency"""
+def get_popular_products(count=5):
     db_con = database()
     cursor = db_con.cursor()
 
     try:
-        # Get products that appear most frequently in history
         cursor.execute("""
             SELECT ProductID, COUNT(*) as count
             FROM History
@@ -72,7 +68,6 @@ def get_popular_products(count=10):
 
         popular_products = [row[0] for row in cursor.fetchall()]
 
-        # If not enough popular products, supplement with random ones
         if len(popular_products) < count:
             random_products = get_random_products(count - len(popular_products), popular_products)
             popular_products.extend(random_products)
@@ -81,23 +76,20 @@ def get_popular_products(count=10):
 
     except Exception as e:
         logging.error(f"Error getting popular products: {str(e)}")
-        return get_random_products(count)  # Fallback to random products
+        return get_random_products(count)
     finally:
         cursor.close()
         db_con.close()
 
 def has_user_history_or_recommendations(user_id):
-    """Check if user exists in History or Recommendation table"""
     db_con = database()
     cursor = db_con.cursor()
 
     try:
-        # Check if user has history
-        cursor.execute("SELECT COUNT(*) FROM History WHERE UserID = %s", (user_id,))
+        cursor.execute(f"SELECT COUNT(*) FROM History WHERE UserID = {user_id}" )
         history_count = cursor.fetchone()[0]
 
-        # Check if user has recommendations
-        cursor.execute("SELECT COUNT(*) FROM Recommendation WHERE UserID = %s", (user_id,))
+        cursor.execute(f"SELECT COUNT(*) FROM Recommendation WHERE UserID = {user_id}")
         recommendation_count = cursor.fetchone()[0]
 
         return history_count > 0 or recommendation_count > 0
@@ -120,13 +112,11 @@ def get_all_products():
         select_clause = "SELECT p.ProductID"
         for category in categories:
             category_id = category[0]
-            select_clause += f", MAX(CASE WHEN pc.CategoryID = {category_id} THEN 1 ELSE 0 END) AS `Cat_{category_id}`"
+            select_clause += f", MAX(CASE WHEN p.CategoryID = {category_id} THEN 1 ELSE 0 END) AS `Cat_{category_id}`"
 
         final_query = f"""
             {select_clause}
             FROM Product p
-            LEFT JOIN Product_Category pc ON p.ProductID = pc.ProductID
-            LEFT JOIN Category c ON pc.CategoryID = c.CategoryID
             GROUP BY p.ProductID;
             """
 
@@ -137,13 +127,13 @@ def get_all_products():
         product_ids = []
         for row in results:
             text_list = list(row)
-            product_id = text_list.pop(0)  # Save the product ID before removing it
+            product_id = text_list.pop(0)
             final.append(text_list)
             product_ids.append(product_id)
 
         cursor.close()
         db_con.close()
-        return final, product_ids  # Return both feature vectors and product IDs
+        return final, product_ids
     except Exception as e:
         logging.error(f"Error getting all products: {str(e)}")
         cursor.close()
@@ -160,15 +150,13 @@ def get_user_history(user_id):
 
         select_clause = "SELECT p.ProductID"
         for category in categories:
-            category_id = category[0] # get the uid of the category and then append that to the new column
-            select_clause += f", MAX(CASE WHEN pc.CategoryID = {category_id} THEN 1 ELSE 0 END) AS `Cat_{category_id}`"
+            category_id = category[0]
+            select_clause += f", MAX(CASE WHEN p.CategoryID = {category_id} THEN 1 ELSE 0 END) AS `Cat_{category_id}`"
 
         final_query = f"""
             {select_clause}
             FROM Product p
-            LEFT JOIN Product_Category pc ON p.ProductID = pc.ProductID
-            LEFT JOIN Category c ON pc.CategoryID = c.CategoryID
-            where p.ProductID in (select ProductID from History where UserID = {user_id})
+            WHERE p.ProductID IN (SELECT ProductID FROM History WHERE UserID = {user_id})
             GROUP BY p.ProductID;
             """
 
@@ -191,82 +179,63 @@ def get_user_history(user_id):
 
 def get_recommendations(user_id, top_n=5):
     try:
-        # Always delete existing recommendations first
         delete_user_recommendations(user_id)
 
-        # Check if user has history or recommendations
         if not has_user_history_or_recommendations(user_id):
-            # Cold start: return random products
             random_recs = get_random_products(top_n)
-            # Store these random recommendations
-            history_upload(user_id, random_recs)
+            recommendation_upload(user_id, random_recs)
 
-            # Add 5 more unique random products
             additional_random = get_random_products(5, random_recs)
-            history_upload(user_id, additional_random)
+            recommendation_upload(user_id, additional_random)
 
             return random_recs + additional_random
 
-        # Get all products and user history with their category vectors
         all_product_features, all_product_ids = get_all_products()
         user_history = get_user_history(user_id)
 
         if not user_history:
-            # User exists but has no history yet
             popular_recs = get_popular_products(top_n)
-            history_upload(user_id, popular_recs)
+            recommendation_upload(user_id, popular_recs)
 
-            # Add 5 more unique random products
             additional_random = get_random_products(5, popular_recs)
-            history_upload(user_id, additional_random)
+            recommendation_upload(user_id, additional_random)
 
             return popular_recs + additional_random
 
-        # Calculate similarity between all products and user history
-        user_profile = np.mean(user_history, axis=0)  # Average user preferences
+        user_profile = np.mean(user_history, axis=0)
         similarities = cosine_similarity([user_profile], all_product_features)
-        print(similarities)
 
-        # Get indices of the top N products sorted by similarity
         product_indices = similarities[0].argsort()[-top_n:][::-1]
 
-        # Get the actual product IDs using the indices
         recommended_product_ids = [all_product_ids[i] for i in product_indices]
+        print(recommended_product_ids)
 
-        # Upload the core recommendations to the database
-        history_upload(user_id, recommended_product_ids)
+        recommendation_upload(user_id, recommended_product_ids)
 
-        # Add 5 more unique random products that aren't in the recommendations
         additional_random = get_random_products(5, recommended_product_ids)
-        history_upload(user_id, additional_random)
+        recommendation_upload(user_id, additional_random)
 
-        # Return both the similarity-based recommendations and the random ones
         return recommended_product_ids + additional_random
 
     except Exception as e:
         logging.error(f"Recommendation error for user {user_id}: {str(e)}")
-        # Fallback to random products
         random_products = get_random_products(top_n + 5)
         return random_products
 
-def history_upload(userID, products):
-    """Upload product recommendations to the database"""
+def recommendation_upload(userID, products):
     db_con = database()
     cursor = db_con.cursor()
 
     try:
         for product_id in products:
-            # Use parameterized queries to prevent SQL injection
             cursor.execute("INSERT INTO Recommendation (UserID, RecommendedProductID) VALUES (%s, %s)",
                           (userID, product_id))
 
-        # Commit the changes
         db_con.commit()
 
     except Exception as e:
         logging.error(f"Error uploading recommendations: {str(e)}")
         db_con.rollback()
     finally:
-        # Close the cursor and connection
         cursor.close()
         db_con.close()