From 5b4332a8478f158721b9322a6386217f899f38f3 Mon Sep 17 00:00:00 2001
From: Mann Patel <130435633+MannPatel0@users.noreply.github.com>
Date: Fri, 18 Apr 2025 11:29:06 -0600
Subject: [PATCH 1/8] Update README.md

---
 README.md | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/README.md b/README.md
index 55e9604..33fd9ff 100644
--- a/README.md
+++ b/README.md
@@ -6,20 +6,16 @@
 ### Frontend
 1. `cd frontend` into the dir and then type command
 ```Bash
-    #Install the needed lib with the command bellow
-    npm install
-    #Start The Server
-    npm run dev
+    1. npm install    #Installs the needed packages
+    2. npm run dev    #Start The Server
 ```
 ---
 
 ### Backend
 1. `cd backend` into the dir and then type command
 ```Bash
-    #Install the needed lib with the command bellow
-    npm install
-    #Start The Server
-    npm run dev
+    1. npm install    #Installs the needed packages
+    2. npm run dev    #Start The Server
 ```
 ---
 
@@ -28,7 +24,6 @@
 2. To Create the DataBase use the command bellow:
 ```Bash
     1. mysql -u root
-    2. use Marketplace;
-    3. \. PathToYour/Schema.sql
+    2. \. PathToYour/Schema.sql
     3. \. PathToYour/Init-Data.sql
 ```

From fa43c91cc547c094e053a2ea3b5d4458af8bd34b Mon Sep 17 00:00:00 2001
From: Mann Patel <130435633+MannPatel0@users.noreply.github.com>
Date: Fri, 18 Apr 2025 11:29:39 -0600
Subject: [PATCH 2/8] Update README.md

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 33fd9ff..235b707 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 ### 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, refix it with your name ```Your-Name Branch-Name```.
+2. Make a brach with the following naming conventionp, prefix it with your name ```Your-Name Branch-Name```.
 ---
 
 ### Frontend

From 47786b04f45a39c2baad2ead8d511fa0c5446629 Mon Sep 17 00:00:00 2001
From: Mann Patel <130435633+MannPatel0@users.noreply.github.com>
Date: Fri, 18 Apr 2025 11:30:40 -0600
Subject: [PATCH 3/8] Update README.md

---
 README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/README.md b/README.md
index 235b707..adaa015 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,13 @@
 ```
 ---
 
+### Recommendation
+1. `cd recommendation-engine` into the dir and then type command
+```Bash
+    1. python3 server.py    #Start The Server
+```
+---
+
 ### Database
 1. MySql Version 9.2.0
 2. To Create the DataBase use the command bellow:

From 7a2250369e721684850eae453e3586ed7a086907 Mon Sep 17 00:00:00 2001
From: estherdev03 <esthertrandev@gmail.com>
Date: Sun, 20 Apr 2025 07:48:20 -0600
Subject: [PATCH 4/8] Finish admin dashboard and update sql code

---
 backend/controllers/category.js | 47 ++++++++++++++++++++++
 backend/controllers/product.js  | 71 ++++++++++++++++++++++++++++++---
 backend/controllers/user.js     | 59 +++++++++++++++++++++------
 backend/index.js                |  5 ++-
 backend/routes/category.js      | 14 +++++++
 backend/routes/product.js       |  8 ++++
 backend/routes/user.js          |  8 ++++
 backend/utils/database.js       |  1 +
 8 files changed, 193 insertions(+), 20 deletions(-)
 create mode 100644 backend/controllers/category.js
 create mode 100644 backend/routes/category.js

diff --git a/backend/controllers/category.js b/backend/controllers/category.js
new file mode 100644
index 0000000..90cbd94
--- /dev/null
+++ b/backend/controllers/category.js
@@ -0,0 +1,47 @@
+const db = require("../utils/database");
+
+exports.getAllCategoriesWithPagination = async (req, res) => {
+  const limit = +req.query?.limit;
+  const page = +req.query?.page;
+  const offset = (page - 1) * limit;
+  try {
+    const [data, _] = await db.execute(
+      "SELECT * FROM Category C ORDER BY C.CategoryID ASC LIMIT ? OFFSET ?",
+      [limit.toString(), offset.toString()]
+    );
+
+    const [result] = await db.execute("SELECT COUNT(*) AS count FROM Category");
+    const { count: total } = result[0];
+    return res.json({ data, total });
+  } catch (error) {
+    res.json({ error: "Cannot fetch categories from database!" });
+  }
+};
+
+exports.addCategory = async (req, res) => {
+  const { name } = req.body;
+
+  try {
+    const [result] = await db.execute(
+      "INSERT INTO Category (Name) VALUES (?)",
+      [name]
+    );
+    res.json({ message: "Adding new category successfully!" });
+  } catch (error) {
+    res.json({ error: "Cannot add new category!" });
+  }
+};
+
+exports.removeCategory = async (req, res) => {
+  const { id } = req.params;
+
+  try {
+    const [result] = await db.execute(
+      `DELETE FROM Category WHERE CategoryID = ?`,
+      [id]
+    );
+    res.json({ message: "Delete category successfully!" });
+  } catch (error) {
+    res.json({ error: "Cannot remove category from database!" });
+  }
+};
diff --git a/backend/controllers/product.js b/backend/controllers/product.js
index 569e4c6..a606fa2 100644
--- a/backend/controllers/product.js
+++ b/backend/controllers/product.js
@@ -6,7 +6,7 @@ exports.addProduct = async (req, res) => {
   try {
     const [result] = await db.execute(
       `INSERT INTO Product (Name, Price, StockQuantity, UserID, Description, CategoryID) VALUES (?, ?, ?, ?, ?, ?)`,
-      [name, price, qty, userID, description, category],
+      [name, price, qty, userID, description, category]
     );
 
     const productID = result.insertId;
@@ -15,7 +15,7 @@ exports.addProduct = async (req, res) => {
         db.execute(`INSERT INTO Image_URL (URL, ProductID) VALUES (?, ?)`, [
           imagePath,
           productID,
-        ]),
+        ])
       );
 
       await Promise.all(imageInsertPromises); //perallel
@@ -39,7 +39,7 @@ exports.addFavorite = async (req, res) => {
     // Use parameterized query to prevent SQL injection
     const [result] = await db.execute(
       `INSERT INTO Favorites (UserID, ProductID) VALUES (?, ?)`,
-      [userID, productID],
+      [userID, productID]
     );
 
     res.json({
@@ -59,7 +59,7 @@ exports.removeFavorite = async (req, res) => {
     // Use parameterized query to prevent SQL injection
     const [result] = await db.execute(
       `DELETE FROM Favorites WHERE UserID = ? AND ProductID = ?`,
-      [userID, productID],
+      [userID, productID]
     );
 
     res.json({
@@ -103,7 +103,7 @@ exports.getFavorites = async (req, res) => {
       p.Date,
       u.Name;
       `,
-      [userID],
+      [userID]
     );
 
     res.json({
@@ -168,7 +168,7 @@ exports.getProductById = async (req, res) => {
       JOIN User U ON p.UserID = U.UserID
       WHERE p.ProductID = ?
     `,
-      [id],
+      [id]
     );
 
     // Log raw data for debugging
@@ -211,6 +211,65 @@ exports.getProductById = async (req, res) => {
   }
 };
 
+exports.getProductWithPagination = async (req, res) => {
+  const limit = +req.query.limit;
+  const page = +req.query.page;
+
+  const offset = (page - 1) * limit;
+
+  try {
+    const [data, fields] = await db.execute(
+      `
+          SELECT
+        P.ProductID,
+        P.Name AS ProductName,
+        P.Price,
+        P.Date AS DateUploaded,
+        U.Name AS SellerName,
+        MIN(I.URL) AS ProductImage,
+        C.Name AS Category
+      FROM Product P
+      LEFT JOIN Image_URL I ON P.ProductID = I.ProductID
+      LEFT JOIN User U ON P.UserID = U.UserID
+      LEFT JOIN Category C ON P.CategoryID = C.CategoryID
+      GROUP BY
+        P.ProductID,
+        P.Name,
+        P.Price,
+        P.Date,
+        U.Name,
+        C.Name
+      ORDER BY P.ProductID ASC
+      LIMIT ? OFFSET ?
+    `,
+      [limit.toString(), offset.toString()]
+    );
+
+    const [result] = await db.execute(
+      `SELECT COUNT(*) AS totalProd FROM Product`
+    );
+    const { totalProd } = result[0];
+
+    return res.json({ totalProd, products: data });
+  } catch (error) {
+    res.json({ error: "Error fetching products!" });
+  }
+};
+
+exports.removeProduct = async (req, res) => {
+  const { id } = req.params;
+
+  try {
+    const [result] = await db.execute(
+      `DELETE FROM Product WHERE ProductID = ?`,
+      [id]
+    );
+    res.json({ message: "Delete product successfully!" });
+  } catch (error) {
+    res.json({ error: "Cannot remove product from database!" });
+  }
+};
+
 // db_con.query(
 //   "SELECT ProductID FROM product WHERE ProductID = ?",
 //   [productID],
diff --git a/backend/controllers/user.js b/backend/controllers/user.js
index 32aef17..37c5b06 100644
--- a/backend/controllers/user.js
+++ b/backend/controllers/user.js
@@ -13,13 +13,13 @@ exports.sendVerificationCode = async (req, res) => {
     // Generate a random 6-digit code
     const verificationCode = crypto.randomInt(100000, 999999).toString();
     console.log(
-      `Generated verification code for ${email}: ${verificationCode}`,
+      `Generated verification code for ${email}: ${verificationCode}`
     );
 
     // Check if email already exists in verification table
     const [results, fields] = await db.execute(
       "SELECT * FROM AuthVerification WHERE Email = ?",
-      [email],
+      [email]
     );
 
     if (results.length > 0) {
@@ -27,7 +27,7 @@ exports.sendVerificationCode = async (req, res) => {
       const [result] = await db.execute(
         `UPDATE AuthVerification SET VerificationCode = ?, Authenticated = FALSE, Date = CURRENT_TIMESTAMP
          WHERE Email = ?`,
-        [verificationCode, email],
+        [verificationCode, email]
       );
 
       // Send email and respond
@@ -37,7 +37,7 @@ exports.sendVerificationCode = async (req, res) => {
       // Insert new record
       const [result] = await db.execute(
         "INSERT INTO AuthVerification (Email, VerificationCode, Authenticated) VALUES (?, ?, FALSE)",
-        [email, verificationCode],
+        [email, verificationCode]
       );
       // Send email and respond
       await sendVerificationEmail(email, verificationCode);
@@ -62,7 +62,7 @@ exports.verifyCode = async (req, res) => {
     // Check verification code
     const [results, fields] = await db.execute(
       "SELECT * FROM AuthVerification WHERE Email = ? AND VerificationCode = ? AND Authenticated = 0 AND Date > DATE_SUB(NOW(), INTERVAL 15 MINUTE)",
-      [email, code],
+      [email, code]
     );
     if (results.length === 0) {
       console.log(`Invalid or expired verification code for email ${email}`);
@@ -76,7 +76,7 @@ exports.verifyCode = async (req, res) => {
     // Mark as authenticated
     const [result] = await db.execute(
       "UPDATE AuthVerification SET Authenticated = TRUE WHERE Email = ?",
-      [email],
+      [email]
     );
     res.json({
       success: true,
@@ -95,7 +95,7 @@ exports.completeSignUp = async (req, res) => {
   try {
     const [results, fields] = await db.execute(
       `SELECT * FROM AuthVerification WHERE Email = ? AND Authenticated = 1;`,
-      [data.email],
+      [data.email]
     );
 
     if (results.length === 0) {
@@ -105,20 +105,20 @@ exports.completeSignUp = async (req, res) => {
     // Create the user
     const [createResult] = await db.execute(
       `INSERT INTO User (Name, Email, UCID, Password, Phone, Address)
-          VALUES ('${data.name}', '${data.email}', '${data.UCID}', '${data.password}', '${data.phone}', '${data.address}')`,
+          VALUES ('${data.name}', '${data.email}', '${data.UCID}', '${data.password}', '${data.phone}', '${data.address}')`
     );
 
     // Insert role using the user's ID
     const [insertResult] = await db.execute(
       `INSERT INTO UserRole (UserID, Client, Admin)
                 VALUES (LAST_INSERT_ID(), ${data.client || true}, ${
-                  data.admin || false
-                })`,
+        data.admin || false
+      })`
     );
 
     // Delete verification record
     const [deleteResult] = await db.execute(
-      `DELETE FROM AuthVerification WHERE Email = '${data.email}'`,
+      `DELETE FROM AuthVerification WHERE Email = '${data.email}'`
     );
 
     res.json({
@@ -310,7 +310,7 @@ exports.deleteUser = async (req, res) => {
     // Delete from UserRole first (assuming foreign key constraint)
     const [result1] = await db.execute(
       "DELETE FROM UserRole WHERE UserID = ?",
-      [userId],
+      [userId]
     );
 
     // Then delete from User table
@@ -328,3 +328,38 @@ exports.deleteUser = async (req, res) => {
     return res.status(500).json({ error: "Could not delete user!" });
   }
 };
+
+exports.getUsersWithPagination = async (req, res) => {
+  const limit = +req.query.limit;
+  const page = +req.query.page;
+
+  const offset = (page - 1) * limit;
+  try {
+    const [users, fields] = await db.execute(
+      "SELECT * FROM User LIMIT ? OFFSET ?",
+      [limit.toString(), offset.toString()]
+    );
+
+    const [result] = await db.execute("SELECT COUNT(*) AS count FROM User");
+    const { count: total } = result[0];
+
+    res.json({ users, total });
+  } catch (error) {
+    console.error("Errors: ", error);
+    return res.status(500).json({ error: "\nCould not fetch users!" });
+  }
+};
+
+exports.isAdmin = async (req, res) => {
+  const { id } = req.params;
+  try {
+    const [result] = await db.execute(
+      "SELECT R.Admin FROM marketplace.userrole R WHERE R.UserID = ?",
+      [id]
+    );
+    const { Admin } = result[0];
+    res.json({ isAdmin: Admin });
+  } catch (error) {
+    res.json({ error: "Cannot verify admin status!" });
+  }
+};
diff --git a/backend/index.js b/backend/index.js
index 7afa3fe..5ba3b27 100644
--- a/backend/index.js
+++ b/backend/index.js
@@ -9,6 +9,7 @@ const searchRouter = require("./routes/search");
 const recommendedRouter = require("./routes/recommendation");
 const history = require("./routes/history");
 const review = require("./routes/review");
+const categoryRouter = require("./routes/category");
 
 const { generateEmailTransporter } = require("./utils/mail");
 const {
@@ -42,10 +43,10 @@ app.use("/api/search", searchRouter);
 app.use("/api/engine", recommendedRouter);
 app.use("/api/history", history);
 app.use("/api/review", review);
-
+app.use("/api/category", categoryRouter);
 
 // Set up a scheduler to run cleanup every hour
-clean_up_time = 30*60*1000;
+clean_up_time = 30 * 60 * 1000;
 setInterval(cleanupExpiredCodes, clean_up_time);
 
 app.listen(3030, () => {
diff --git a/backend/routes/category.js b/backend/routes/category.js
new file mode 100644
index 0000000..9a04a08
--- /dev/null
+++ b/backend/routes/category.js
@@ -0,0 +1,14 @@
+const express = require("express");
+const {
+  getAllCategoriesWithPagination,
+  addCategory,
+  removeCategory,
+} = require("../controllers/category");
+
+const router = express.Router();
+
+router.get("/getCategories", getAllCategoriesWithPagination);
+router.post("/addCategory", addCategory);
+router.delete("/:id", removeCategory);
+
+module.exports = router;
diff --git a/backend/routes/product.js b/backend/routes/product.js
index 944e63b..4b59e25 100644
--- a/backend/routes/product.js
+++ b/backend/routes/product.js
@@ -7,6 +7,8 @@ const {
   getAllProducts,
   getProductById,
   addProduct,
+  removeProduct,
+  getProductWithPagination,
 } = require("../controllers/product");
 const router = express.Router();
 
@@ -22,6 +24,12 @@ router.post("/delFavorite", removeFavorite);
 
 router.post("/addProduct", addProduct);
 router.get("/getProduct", getAllProducts);
+
+//Remove product
+router.delete("/:id", removeProduct);
+//Get products with pagination
+router.get("/getProductWithPagination", getProductWithPagination);
+
 router.get("/:id", getProductById); // Simplified route
 
 module.exports = router;
diff --git a/backend/routes/user.js b/backend/routes/user.js
index 1ccbc88..657b793 100644
--- a/backend/routes/user.js
+++ b/backend/routes/user.js
@@ -8,6 +8,8 @@ const {
   updateUser,
   deleteUser,
   doLogin,
+  isAdmin,
+  getUsersWithPagination,
 } = require("../controllers/user");
 
 const router = express.Router();
@@ -36,4 +38,10 @@ router.post("/update", updateUser);
 //Delete A uses Data:
 router.post("/delete", deleteUser);
 
+//Check admin status
+router.get("/isAdmin/:id", isAdmin);
+
+//Fetch user with pagination
+router.get("/getUserWithPagination", getUsersWithPagination);
+
 module.exports = router;
diff --git a/backend/utils/database.js b/backend/utils/database.js
index 6e75c3a..643b1f9 100644
--- a/backend/utils/database.js
+++ b/backend/utils/database.js
@@ -4,6 +4,7 @@ const pool = mysql.createPool({
   host: "localhost",
   user: "root",
   database: "Marketplace",
+  password: "12345678",
 });
 
 module.exports = pool.promise();

From 26cd50ab6fcece1726dafe41967af83c58efc94b Mon Sep 17 00:00:00 2001
From: estherdev03 <esthertrandev@gmail.com>
Date: Sun, 20 Apr 2025 07:50:57 -0600
Subject: [PATCH 5/8] Finish admin dashboard and update sql code

---
 frontend/package-lock.json               | 10 +++
 frontend/package.json                    |  1 +
 frontend/src/App.jsx                     | 64 +++++++++++++--
 frontend/src/api/admin.js                | 96 +++++++++++++++++++++++
 frontend/src/api/client.js               |  3 +
 frontend/src/components/CategoryForm.jsx | 65 ++++++++++++++++
 frontend/src/components/DashboardNav.jsx | 83 ++++++++++++++++++++
 frontend/src/components/Navbar.jsx       |  9 ++-
 frontend/src/components/Pagination.jsx   | 99 ++++++++++++++++++++++++
 frontend/src/components/UserDropdown.jsx | 22 +++++-
 frontend/src/pages/CategoryDashboard.jsx | 94 ++++++++++++++++++++++
 frontend/src/pages/Dashboard.jsx         |  7 ++
 frontend/src/pages/ProductDashboard.jsx  | 83 ++++++++++++++++++++
 frontend/src/pages/UserDashboard.jsx     | 91 ++++++++++++++++++++++
 mysql-code/Init-Data.sql                 | 64 +++++++--------
 mysql-code/Schema.sql                    | 32 ++++----
 16 files changed, 766 insertions(+), 57 deletions(-)
 create mode 100644 frontend/src/api/admin.js
 create mode 100644 frontend/src/api/client.js
 create mode 100644 frontend/src/components/CategoryForm.jsx
 create mode 100644 frontend/src/components/DashboardNav.jsx
 create mode 100644 frontend/src/components/Pagination.jsx
 create mode 100644 frontend/src/pages/CategoryDashboard.jsx
 create mode 100644 frontend/src/pages/Dashboard.jsx
 create mode 100644 frontend/src/pages/ProductDashboard.jsx
 create mode 100644 frontend/src/pages/UserDashboard.jsx

diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 7b44684..3add1d8 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -13,6 +13,7 @@
         "lucide-react": "^0.477.0",
         "react": "^19.0.0",
         "react-dom": "^19.0.0",
+        "react-icons": "^5.5.0",
         "react-router-dom": "^7.2.0"
       },
       "devDependencies": {
@@ -4369,6 +4370,15 @@
         "react": "^19.0.0"
       }
     },
+    "node_modules/react-icons": {
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/react-icons/-/react-icons-5.5.0.tgz",
+      "integrity": "sha512-MEFcXdkP3dLo8uumGI5xN3lDFNsRtrjbOEKDLD7yv76v4wpnEq2Lt2qeHaQOr34I/wPN3s3+N08WkQ+CW37Xiw==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react": "*"
+      }
+    },
     "node_modules/react-is": {
       "version": "16.13.1",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",
diff --git a/frontend/package.json b/frontend/package.json
index 8a323b6..35ececa 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -15,6 +15,7 @@
     "lucide-react": "^0.477.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
+    "react-icons": "^5.5.0",
     "react-router-dom": "^7.2.0"
   },
   "devDependencies": {
diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index 4b88b70..eefdb63 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -13,6 +13,12 @@ import Transactions from "./pages/Transactions";
 import Favorites from "./pages/Favorites";
 import ProductDetail from "./pages/ProductDetail";
 import SearchPage from "./pages/SearchPage"; // Make sure to import the SearchPage
+import Dashboard from "./pages/Dashboard";
+import UserDashboard from "./pages/UserDashboard";
+import ProductDashboard from "./pages/ProductDashboard";
+import DashboardNav from "./components/DashboardNav";
+import CategoryDashboard from "./pages/CategoryDashboard";
+import { verifyIsAdmin } from "./api/admin";
 
 function App() {
   // Authentication state - initialize from localStorage if available
@@ -56,6 +62,26 @@ function App() {
     sendSessionDataToServer();
   }, []);
 
+  const [isAdmin, setIsAdmin] = useState(false);
+  const [showAdminDashboard, setShowAdminDashboard] = useState(false);
+
+  useEffect(() => {
+    const userInfo = sessionStorage.getItem("user")
+      ? JSON.parse(sessionStorage.getItem("user"))
+      : "";
+    const id = userInfo?.ID;
+    verifyIsAdmin(id).then((data) => {
+      setIsAdmin(data.isAdmin);
+    });
+  }, [user]);
+
+  const handleShowAdminDashboard = () => {
+    setShowAdminDashboard(true);
+  };
+  const handleCloseAdminDashboard = () => {
+    setShowAdminDashboard(false);
+  };
+
   // Send verification code
   const sendVerificationCode = async (userData) => {
     try {
@@ -76,7 +102,7 @@ function App() {
             email: userData.email,
             // Add any other required fields
           }),
-        },
+        }
       );
 
       if (!response.ok) {
@@ -125,7 +151,7 @@ function App() {
             email: tempUserData.email,
             code: code,
           }),
-        },
+        }
       );
 
       if (!response.ok) {
@@ -169,7 +195,7 @@ function App() {
             "Content-Type": "application/json",
           },
           body: JSON.stringify(userData),
-        },
+        }
       );
 
       if (!response.ok) {
@@ -275,7 +301,7 @@ function App() {
               email: formValues.email,
               password: formValues.password,
             }),
-          },
+          }
         );
 
         if (!response.ok) {
@@ -580,8 +606,8 @@ function App() {
                     {isLoading
                       ? "Please wait..."
                       : isSignUp
-                        ? "Create Account"
-                        : "Sign In"}
+                      ? "Create Account"
+                      : "Sign In"}
                   </button>
                 </div>
               </form>
@@ -672,12 +698,36 @@ function App() {
     return children;
   };
 
+  // If user is admin, show admin naviagtion
+  if (showAdminDashboard) {
+    return (
+      <Router>
+        <div className="flex">
+          <DashboardNav handleCloseAdminDashboard={handleCloseAdminDashboard} />
+          <Routes>
+            {/* Admin routes */}
+            <Route path="/admin" element={<Dashboard />} />
+            <Route path="/admin/user" element={<UserDashboard />} />
+            <Route path="/admin/product" element={<ProductDashboard />} />
+            <Route path="/admin/category" element={<CategoryDashboard />} />
+            <Route path="*" element={<Dashboard />} />
+          </Routes>
+        </div>
+      </Router>
+    );
+  }
+
   return (
     <Router>
       <div className="min-h-screen bg-gray-50">
         {/* Only show navbar when authenticated */}
         {isAuthenticated && (
-          <Navbar onLogout={handleLogout} userName={user?.name} />
+          <Navbar
+            isAdmin={isAdmin}
+            onLogout={handleLogout}
+            userName={user?.name}
+            handleShowAdminDashboard={handleShowAdminDashboard}
+          />
         )}
         <Routes>
           {/* Public routes */}
diff --git a/frontend/src/api/admin.js b/frontend/src/api/admin.js
new file mode 100644
index 0000000..f2728c9
--- /dev/null
+++ b/frontend/src/api/admin.js
@@ -0,0 +1,96 @@
+import client from "./client";
+
+export const getUsers = async (page, limit = 10) => {
+  try {
+    const { data } = await client.get(
+      `/user/getUserWithPagination?page=${page}&limit=${limit}`
+    );
+    return { users: data.users, total: data.total };
+  } catch (error) {
+    const { response } = error;
+    if (response?.data) return response.data;
+    return { error: error.message || error };
+  }
+};
+
+export const getProducts = async (page, limit = 10) => {
+  try {
+    const { data } = await client.get(
+      `/product/getProductWithPagination?limit=${limit}&page=${page}`
+    );
+
+    return { products: data.products, total: data.totalProd };
+  } catch (error) {
+    const { response } = error;
+    if (response?.data) return response.data;
+    return { error: error.message || error };
+  }
+};
+
+export const getCategories = async (page, limit = 10) => {
+  try {
+    const { data } = await client.get(
+      `/category/getCategories?page=${page}&limit=${limit}`
+    );
+    return { data: data.data, total: data.total };
+  } catch (error) {
+    const { response } = error;
+    if (response?.data) return response.data;
+    return { error: error.message || error };
+  }
+};
+
+export const addCategory = async (name) => {
+  try {
+    const { data } = await client.post(`/category/addCategory`, { name: name });
+    return { message: data.message };
+  } catch (error) {
+    const { response } = error;
+    if (response?.data) return response.data;
+    return { error: error.message || error };
+  }
+};
+
+export const removeCategory = async (id) => {
+  try {
+    const { data } = await client.delete(`/category/${id}`);
+    return { message: data.message };
+  } catch (error) {
+    const { response } = error;
+    if (response?.data) return response.data;
+    return { error: error.message || error };
+  }
+};
+
+export const removeUser = async (id) => {
+  try {
+    const { data } = await client.post(`/user/delete`, { userId: id });
+    return { message: data.message };
+  } catch (error) {
+    const { response } = error;
+    if (response?.data) return response.data;
+    return { error: error.message || error };
+  }
+};
+
+export const removeProduct = async (id) => {
+  try {
+    const { data } = await client.delete(`/product/${id}`);
+    return { message: data.message };
+  } catch (error) {
+    const { response } = error;
+    if (response?.data) return response.data;
+    return { error: error.message || error };
+  }
+};
+
+export const verifyIsAdmin = async (id) => {
+  try {
+    const { data } = await client.get(`/user/isAdmin/${id}`);
+    return { isAdmin: data.isAdmin };
+  } catch (error) {
+    const { response } = error;
+    if (response?.data) return response.data;
+    return { error: error.message || error };
+  }
+};
diff --git a/frontend/src/api/client.js b/frontend/src/api/client.js
new file mode 100644
index 0000000..bcb4831
--- /dev/null
+++ b/frontend/src/api/client.js
@@ -0,0 +1,3 @@
+import axios from "axios";
+const client = axios.create({ baseURL: "http://localhost:3030/api" });
+export default client;
diff --git a/frontend/src/components/CategoryForm.jsx b/frontend/src/components/CategoryForm.jsx
new file mode 100644
index 0000000..08d7e86
--- /dev/null
+++ b/frontend/src/components/CategoryForm.jsx
@@ -0,0 +1,65 @@
+import { useState } from "react";
+import { MdAddBox } from "react-icons/md";
+import { addCategory } from "../api/admin";
+
+export default function CategoryForm({ visible, onAddCategory }) {
+  const [category, setCategory] = useState("");
+
+  const handleSubmit = (e) => {
+    e.preventDefault();
+    if (!category.trim()) {
+      document.getElementById("noti").innerHTML = "Category name is missing!";
+      document
+        .getElementById("noti")
+        .classList.add("bg-red-200", "text-red-500");
+      document.getElementById("noti").classList.remove("opacity-0");
+      return;
+    }
+    addCategory(category)
+      .then((message) => {
+        document
+          .getElementById("noti")
+          .classList.remove("opacity-0", "bg-red-200", "text-red-500");
+        document
+          .getElementById("noti")
+          .classList.add("bg-green-200", "text-green-800");
+        document.getElementById("noti").innerHTML = `${message.message}`;
+        setCategory("");
+        onAddCategory();
+      })
+      .catch((err) => {
+        console.log(err);
+      });
+  };
+
+  const handleChange = ({ target }) => {
+    setCategory(target.value);
+    if (target.value.trim())
+      document.getElementById("noti").classList.add("opacity-0");
+  };
+
+  if (!visible) return;
+
+  return (
+    <form onSubmit={handleSubmit} action="" className="flex p-2 items-center">
+      <label htmlFor="category" className="text-green-700">
+        Category:
+      </label>
+      <input
+        type="text"
+        className="border border-green-700 ml-2 rounded-sm focus:bg-green-100 text-green-900"
+        name="category"
+        id="category"
+        onChange={handleChange}
+        value={category}
+      />
+      <button type="submit" className="text-2xl pl-1 text-green-700">
+        <MdAddBox className="text-3xl" />
+      </button>
+      <p
+        id="noti"
+        className="text-red-500 bg-red-200 px-2 rounded-sm opacity-0 mx-2"
+      ></p>
+    </form>
+  );
+}
diff --git a/frontend/src/components/DashboardNav.jsx b/frontend/src/components/DashboardNav.jsx
new file mode 100644
index 0000000..75e287c
--- /dev/null
+++ b/frontend/src/components/DashboardNav.jsx
@@ -0,0 +1,83 @@
+import { Link, NavLink } from "react-router-dom";
+import { FaUserTag } from "react-icons/fa";
+import { FaBoxArchive } from "react-icons/fa6";
+import { MdOutlineCategory } from "react-icons/md";
+import { FaArrowLeft } from "react-icons/fa";
+
+export default function DashboardNav({ handleCloseAdminDashboard }) {
+  const handleClick = () => {
+    handleCloseAdminDashboard();
+  };
+
+  return (
+    <div>
+      <div className="w-3xs h-screen bg-green-700 border border-green-700">
+        <ul>
+          <li>
+            <div className="flex-shrink-0 p-6 bg-green-200">
+              <Link to="/admin" className="flex items-center">
+                <img
+                  src="/icon/icon-512.png"
+                  alt="Campus Plug"
+                  className="h-8 px-2 "
+                />
+                <span className="hidden md:block text-green-700 font-bold text-2xl">
+                  Campus Plug
+                </span>
+              </Link>
+            </div>
+          </li>
+          <li className="w-fit pl-10">
+            <NavLink
+              to="/admin/user"
+              className={({ isActive }) =>
+                (isActive
+                  ? " text-green-400"
+                  : "text-white transition-all hover:text-green-200") +
+                " flex items-center px-5 text-lg pt-5 "
+              }
+            >
+              <FaUserTag />
+              <span className="pl-3">Users</span>
+            </NavLink>
+          </li>
+          <li className="w-fit pl-10">
+            <NavLink
+              to="/admin/product"
+              className={({ isActive }) =>
+                (isActive
+                  ? "text-green-400"
+                  : "text-white transition-all hover:text-green-200") +
+                " flex items-center px-5 text-lg pt-5"
+              }
+            >
+              <FaBoxArchive />
+              <span className="pl-3">Products</span>
+            </NavLink>
+          </li>
+          <li className="w-fit pl-10">
+            <NavLink
+              to="/admin/category"
+              className={({ isActive }) =>
+                (isActive
+                  ? "text-green-400"
+                  : "text-white transition-all hover:text-green-200") +
+                " flex items-center px-5 text-lg pt-5"
+              }
+            >
+              <MdOutlineCategory />
+              <span className="pl-3">Categories</span>
+            </NavLink>
+          </li>
+        </ul>
+        <div
+          onClick={handleClick}
+          className=" text-center my-8 underline text-white underline-offset-4 flex justify-center items-center hover:cursor-pointer h-fit w-fit mx-auto hover:text-green-200 transition"
+        >
+          <FaArrowLeft className="text-sm mx-2 mt-1" />
+          <span>Go back to user page</span>
+        </div>
+      </div>
+    </div>
+  );
+}
diff --git a/frontend/src/components/Navbar.jsx b/frontend/src/components/Navbar.jsx
index aeceb2c..1c40ad8 100644
--- a/frontend/src/components/Navbar.jsx
+++ b/frontend/src/components/Navbar.jsx
@@ -3,7 +3,7 @@ import { Link, useNavigate } from "react-router-dom";
 import UserDropdown from "./UserDropdown";
 import { Search, Heart } from "lucide-react";
 
-const Navbar = ({ onLogout, userName }) => {
+const Navbar = ({ onLogout, userName, isAdmin, handleShowAdminDashboard }) => {
   const [searchQuery, setSearchQuery] = useState("");
   const navigate = useNavigate();
 
@@ -76,7 +76,12 @@ const Navbar = ({ onLogout, userName }) => {
             </Link>
 
             {/* User Profile */}
-            <UserDropdown onLogout={onLogout} userName={userName} />
+            <UserDropdown
+              isAdmin={isAdmin}
+              onLogout={onLogout}
+              userName={userName}
+              handleShowAdminDashboard={handleShowAdminDashboard}
+            />
           </div>
         </div>
       </div>
diff --git a/frontend/src/components/Pagination.jsx b/frontend/src/components/Pagination.jsx
new file mode 100644
index 0000000..ca14f76
--- /dev/null
+++ b/frontend/src/components/Pagination.jsx
@@ -0,0 +1,99 @@
+import { useState } from "react";
+import { NavLink } from "react-router-dom";
+
+export default function Pagination({ pageNum, onChange }) {
+  const [currentPage, setCurrentPage] = useState(1);
+
+  const pages = [];
+  for (let i = 1; i <= pageNum; i++) {
+    pages.push(i);
+  }
+
+  const handleClick = (page) => {
+    setCurrentPage(page);
+    onChange(page);
+  };
+
+  const handleTogglePage = (type) => {
+    let current = currentPage;
+    if (type == "next")
+      current = current + 1 <= pageNum ? current + 1 : current;
+    else current = current - 1 >= 1 ? current - 1 : current;
+    setCurrentPage(current);
+    onChange(current);
+  };
+
+  return (
+    <>
+      <nav aria-label="Page navigation" className="flex justify-end">
+        <ul className="flex items-center -space-x-px h-8 text-sm mt-4 pr-0 font-bold">
+          <li>
+            <NavLink
+              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"
+            >
+              <span className="sr-only">Previous</span>
+              <svg
+                className="w-2.5 h-2.5 rtl:rotate-180"
+                aria-hidden="true"
+                xmlns="http://www.w3.org/2000/svg"
+                fill="none"
+                viewBox="0 0 6 10"
+              >
+                <path
+                  stroke="currentColor"
+                  strokeLinecap="round"
+                  strokeLinejoin="round"
+                  strokeWidth="2"
+                  d="M5 1 1 5l4 4"
+                />
+              </svg>
+            </NavLink>
+          </li>
+          {pages.map((page) => (
+            <li key={page}>
+              <NavLink
+                className={`${
+                  currentPage == page ? "bg-green-600" : "bg-green-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"`}
+                onClick={() => {
+                  handleClick(page);
+                }}
+              >
+                {page}
+              </NavLink>
+            </li>
+          ))}
+          <li>
+            <NavLink
+              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"
+            >
+              <span className="sr-only">Next</span>
+              <svg
+                className="w-2.5 h-2.5 rtl:rotate-180"
+                aria-hidden="true"
+                xmlns="http://www.w3.org/2000/svg"
+                fill="none"
+                viewBox="0 0 6 10"
+              >
+                <path
+                  stroke="currentColor"
+                  strokeLinecap="round"
+                  strokeLinejoin="round"
+                  strokeWidth="2"
+                  d="m1 9 4-4-4-4"
+                />
+              </svg>
+            </NavLink>
+          </li>
+        </ul>
+      </nav>
+    </>
+  );
+}
diff --git a/frontend/src/components/UserDropdown.jsx b/frontend/src/components/UserDropdown.jsx
index e8eed00..cf3cb1f 100644
--- a/frontend/src/components/UserDropdown.jsx
+++ b/frontend/src/components/UserDropdown.jsx
@@ -1,8 +1,14 @@
 import { useState, useRef, useEffect } from "react";
 import { Link, useNavigate } from "react-router-dom";
 import { User, Settings, ShoppingBag, DollarSign, LogOut } from "lucide-react";
+import { RiAdminLine } from "react-icons/ri";
 
-const UserDropdown = ({ onLogout, userName }) => {
+const UserDropdown = ({
+  onLogout,
+  userName,
+  isAdmin,
+  handleShowAdminDashboard,
+}) => {
   const [isOpen, setIsOpen] = useState(false);
   const dropdownRef = useRef(null);
   const navigate = useNavigate();
@@ -89,6 +95,20 @@ const UserDropdown = ({ onLogout, userName }) => {
               Settings
             </Link>
 
+            {isAdmin ? (
+              <Link
+                className="flex items-center px-4 py-2 text-sm text-gray-700 hover:bg-gray-100"
+                onClick={() => {
+                  handleShowAdminDashboard();
+                }}
+              >
+                <RiAdminLine className="h-4 w-4 mr-2 text-gray-500" />
+                Admin
+              </Link>
+            ) : (
+              <></>
+            )}
+
             <button
               className="flex w-full items-center px-4 py-2 text-sm text-gray-700 hover:bg-gray-100"
               onClick={handleLogout}
diff --git a/frontend/src/pages/CategoryDashboard.jsx b/frontend/src/pages/CategoryDashboard.jsx
new file mode 100644
index 0000000..8a9464f
--- /dev/null
+++ b/frontend/src/pages/CategoryDashboard.jsx
@@ -0,0 +1,94 @@
+import { useEffect, useState } from "react";
+import { getCategories, removeCategory } from "../api/admin";
+import { MdDelete } from "react-icons/md";
+import Pagination from "../components/Pagination";
+import { IoAddCircleSharp } from "react-icons/io5";
+import CategoryForm from "../components/CategoryForm";
+
+export default function CategoryDashboard() {
+  const [categories, setCategories] = useState([]);
+  const [total, setTotal] = useState(0);
+  const [currentPage, setCurrentPage] = useState(1);
+
+  let pageLimit = 10;
+
+  const [visible, setVisible] = useState(false);
+
+  const onChangePage = (page, limit = 10) => {
+    setCurrentPage(page);
+    fetchCategory(page, limit);
+  };
+
+  const fetchCategory = (page = 1, limit = 10) => {
+    getCategories(page, limit).then(({ data, total }) => {
+      setCategories(data);
+      setTotal(total);
+    });
+  };
+
+  const notiChange = () => {
+    fetchCategory(currentPage);
+  };
+
+  const handleToggleForm = () => {
+    setVisible((curr) => !curr);
+  };
+
+  const handleRemove = (id) => {
+    removeCategory(id)
+      .then((res) => {
+        fetchCategory(currentPage);
+      })
+      .catch((err) => {
+        console.log(err);
+      });
+  };
+
+  //Get user when initialize the component
+  useEffect(fetchCategory, []);
+
+  return (
+    <div className="pt-10 p-20">
+      <h1 className="text-4xl pb-3 font-bold text-green-800 underline">
+        CATEGORIES
+      </h1>
+      <button
+        onClick={handleToggleForm}
+        className="flex justify-end items-center bg-blue-500 rounded-md px-2 text-white text-sm p-1 mb-1 ml-auto hover:cursor-pointer hover:bg-blue-600 transtion"
+      >
+        <span className="pr-1 text-xs">Add</span>
+        <IoAddCircleSharp />
+      </button>
+      <CategoryForm onAddCategory={notiChange} visible={visible} />
+      <table className="table-fixed w-full text-center border border-green-600">
+        <thead className="bg-green-600 h-10">
+          <tr>
+            <th>CategoryID</th>
+            <th>Name</th>
+            <th>Action</th>
+          </tr>
+        </thead>
+        <tbody>
+          {categories.map((category) => (
+            <tr key={category.UserID} className="border border-green-600 h-10">
+              <td>{category.CategoryID}</td>
+              <td>{category.Name}</td>
+              <td className="flex justify-center pt-2">
+                <MdDelete
+                  onClick={() => {
+                    handleRemove(category.CategoryID);
+                  }}
+                  className="hover:text-red-600 cursor-pointer transition-all text-xl"
+                />
+              </td>
+            </tr>
+          ))}
+        </tbody>
+      </table>
+      <Pagination
+        pageNum={Math.ceil(total / pageLimit)}
+        onChange={onChangePage}
+      />
+    </div>
+  );
+}
diff --git a/frontend/src/pages/Dashboard.jsx b/frontend/src/pages/Dashboard.jsx
new file mode 100644
index 0000000..dbcc762
--- /dev/null
+++ b/frontend/src/pages/Dashboard.jsx
@@ -0,0 +1,7 @@
+export default function Dashboard() {
+  return (
+    <div className="text-3xl font-bold p-3 text-green-800">
+      Welcome to admin dashboard
+    </div>
+  );
+}
diff --git a/frontend/src/pages/ProductDashboard.jsx b/frontend/src/pages/ProductDashboard.jsx
new file mode 100644
index 0000000..c3ef4d2
--- /dev/null
+++ b/frontend/src/pages/ProductDashboard.jsx
@@ -0,0 +1,83 @@
+import { useEffect, useState } from "react";
+import { getProducts, removeProduct } from "../api/admin";
+import { MdDelete } from "react-icons/md";
+import Pagination from "../components/Pagination";
+
+export default function ProductDashboard() {
+  const [products, setProducts] = useState([]);
+  const [total, setTotal] = useState(0);
+  const [currentPage, setCurrentPage] = useState(1);
+
+  let pageLimit = 10;
+
+  const onChangePage = (page, limit = 10) => {
+    setCurrentPage(page);
+    fetchProducts(page, limit);
+  };
+
+  const fetchProducts = (page = 1, limit = 10) => {
+    getProducts(page, limit).then(({ products, total }) => {
+      setTotal(total);
+      setProducts(products);
+    });
+  };
+
+  const handleRemoveProduct = (id) => {
+    removeProduct(id)
+      .then((res) => {
+        fetchProducts(currentPage);
+      })
+      .catch((err) => {
+        console.log(err);
+      });
+  };
+
+  //Get user when initialize the component
+  useEffect(fetchProducts, []);
+
+  return (
+    <div className="pt-10 p-20">
+      <h1 className="text-4xl pb-3 font-bold text-green-800 underline">
+        PRODUCTS
+      </h1>
+      <table className="table-fixed w-full text-center border border-green-600">
+        <thead className="bg-green-600 h-10">
+          <tr>
+            <th>ProductID</th>
+            <th>Name</th>
+            <th>Price</th>
+            <th>Category</th>
+            <th>Seller</th>
+            <th>Action</th>
+          </tr>
+        </thead>
+        <tbody>
+          {products.map((product) => (
+            <tr
+              key={product.ProductID}
+              className="border border-green-600 h-10"
+            >
+              <td>{product.ProductID}</td>
+              <td>{product.ProductName}</td>
+              <td>{product.Price}</td>
+              <td>{product.Category ? product.Category : "N/A"}</td>
+              <td>{product.SellerName ? product.SellerName : "N/A"}</td>
+              <td className="flex justify-center pt-2">
+                <MdDelete
+                  onClick={() => {
+                    handleRemoveProduct(product.ProductID);
+                  }}
+                  className="hover:text-red-600 cursor-pointer transition-all text-xl"
+                />
+              </td>
+            </tr>
+          ))}
+        </tbody>
+      </table>
+      <Pagination
+        onChange={onChangePage}
+        pageNum={Math.ceil(total / pageLimit)}
+      />
+    </div>
+  );
+}
diff --git a/frontend/src/pages/UserDashboard.jsx b/frontend/src/pages/UserDashboard.jsx
new file mode 100644
index 0000000..9cab96d
--- /dev/null
+++ b/frontend/src/pages/UserDashboard.jsx
@@ -0,0 +1,91 @@
+import { useEffect, useState } from "react";
+import { getUsers, removeUser } from "../api/admin";
+import { MdDelete } from "react-icons/md";
+import Pagination from "../components/Pagination";
+
+export default function UserDashboard() {
+  const [users, setUsers] = useState([]);
+  const [total, setTotal] = useState(0);
+  const [currentPage, setCurrentPage] = useState(1);
+
+  let pageLimit = 10;
+
+  const onChangePage = (page, limit = 10) => {
+    setCurrentPage(page);
+    fetchUsers(page, limit);
+  };
+
+  const fetchUsers = (page = 1, limit = 10) => {
+    getUsers(page, limit).then(({ users, total }) => {
+      setUsers(users);
+      setTotal(total);
+    });
+  };
+
+  const handleRemoveUser = (id) => {
+    removeUser(id)
+      .then((res) => {
+        fetchUsers(currentPage);
+      })
+      .catch((err) => {
+        console.log(err);
+      });
+  };
+
+  //Get user when initialize the component
+  useEffect(fetchUsers, []);
+
+  return (
+    <div className="pt-10 p-20">
+      <h1 className="text-4xl pb-3 font-bold text-green-800 underline">
+        USERS
+      </h1>
+      {users.length > 0 ? (
+        <>
+          {" "}
+          <table className="table-fixed w-full text-center border border-green-600">
+            <thead className="bg-green-600 h-10">
+              <tr>
+                <th>UserID</th>
+                <th>UCID</th>
+                <th>Name</th>
+                <th>Email</th>
+                <th>Phone</th>
+                <th>Address</th>
+                <th>Action</th>
+              </tr>
+            </thead>
+            <tbody>
+              {users.map((user) => (
+                <tr key={user.UserID} className="border border-green-600 h-10">
+                  <td>{user.UserID}</td>
+                  <td>{user.UCID}</td>
+                  <td>{user.Name}</td>
+                  <td>{user.Email}</td>
+                  <td>{user.Phone}</td>
+                  <td>{user.Address}</td>
+                  <td className="flex justify-center pt-2">
+                    <MdDelete
+                      onClick={() => {
+                        handleRemoveUser(user.UserID);
+                      }}
+                      className="hover:text-red-600 cursor-pointer transition-all text-xl"
+                    />
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+          <Pagination
+            pageNum={Math.ceil(total / pageLimit)}
+            onChange={onChangePage}
+          />
+        </>
+      ) : (
+        <p className="text-red-700 text-xl bg-red-200 px-3 rounded-md py-1">
+          No user exists!
+        </p>
+      )}
+    </div>
+  );
+}
diff --git a/mysql-code/Init-Data.sql b/mysql-code/Init-Data.sql
index 638e888..89747ab 100644
--- a/mysql-code/Init-Data.sql
+++ b/mysql-code/Init-Data.sql
@@ -67,40 +67,42 @@ VALUES
     (1, TRUE, TRUE),
     (2, TRUE, FALSE);
 
+-- Insert Categories
 -- Insert Categories
 INSERT INTO
-    Category (CategoryID, Name)
+    Category (Name)
 VALUES
-    (1, 'Textbooks'),
-    (2, 'Electronics'),
-    (3, 'Furniture'),
-    (4, 'Clothing'),
-    (5, 'Sports Equipment'),
-    (6, 'Musical Instruments'),
-    (7, 'Art Supplies'),
-    (8, 'Kitchen Appliances'),
-    (9, 'Gaming'),
-    (10, 'Bicycles'),
-    (11, 'Computer Accessories'),
-    (12, 'Stationery'),
-    (13, 'Fitness Equipment'),
-    (14, 'Winter Sports'),
-    (15, 'Lab Equipment'),
-    (16, 'Camping Gear'),
-    (17, 'School Supplies'),
-    (18, 'Office Furniture'),
-    (19, 'Books (Non-textbook)'),
-    (20, 'Math & Science Resources'),
-    (21, 'Engineering Tools'),
-    (22, 'Backpacks & Bags'),
-    (23, 'Audio Equipment'),
-    (24, 'Dorm Essentials'),
-    (25, 'Smartphones & Tablets'),
-    (26, 'Winter Clothing'),
-    (27, 'Photography Equipment'),
-    (28, 'Event Tickets'),
-    (29, 'Software Licenses'),
-    (30, 'Transportation (Car Pool)');
+    ('Textbooks'),
+    ('Electronics'),
+    ('Furniture'),
+    ('Clothing'),
+    ('Sports Equipment'),
+    ('Musical Instruments'),
+    ('Art Supplies'),
+    ('Kitchen Appliances'),
+    ('Gaming'),
+    ( 'Bicycles'),
+    ( 'Computer Accessories'),
+    ( 'Stationery'),
+    ( 'Fitness Equipment'),
+    ( 'Winter Sports'),
+    ( 'Lab Equipment'),
+    ( 'Camping Gear'),
+    ( 'School Supplies'),
+    ( 'Office Furniture'),
+    ( 'Books (-textbook)'),
+    ( 'Math & Science Resources'),
+    ( 'Engineering Tools'),
+    ( 'Backpacks & Bags'),
+    ( 'Audio Equipment'),
+    ( 'Dorm Essentials'),
+    ( 'Smartphones & Tablets'),
+    ( 'Winter Clothing'),
+    ( 'Photography Equipment'),
+    ( 'Event Tickets'),
+    ( 'Software Licenses'),
+    ( 'Transportation (Car Pool)');
+
 
 -- Insert Products
 INSERT INTO
diff --git a/mysql-code/Schema.sql b/mysql-code/Schema.sql
index cadb8b5..508dc7d 100644
--- a/mysql-code/Schema.sql
+++ b/mysql-code/Schema.sql
@@ -24,7 +24,7 @@ CREATE TABLE UserRole (
 
 -- Category Entity (must be created before Product or else error)
 CREATE TABLE Category (
-    CategoryID INT PRIMARY KEY,
+    CategoryID INT AUTO_INCREMENT PRIMARY KEY,
     Name VARCHAR(255) NOT NULL
 );
 
@@ -38,15 +38,15 @@ CREATE TABLE Product (
     Description TEXT,
     CategoryID INT NOT NULL,
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID)
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE SET NULL,
+    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID) ON DELETE SET NULL
 );
 
 -- Fixed Image_URL table
 CREATE TABLE Image_URL (
     URL VARCHAR(255),
     ProductID INT,
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID)
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
 );
 
 -- Fixed Review Entity (Many-to-One with User, Many-to-One with Product)
@@ -60,8 +60,8 @@ CREATE TABLE Review (
         AND Rating <= 5
     ),
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID)
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE SET NULL,
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
 );
 
 -- Transaction Entity (Many-to-One with User, Many-to-One with Product)
@@ -71,8 +71,8 @@ CREATE TABLE Transaction (
     ProductID INT,
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
     PaymentStatus VARCHAR(50),
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID)
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE SET NULL 
 );
 
 -- Recommendation Entity (Many-to-One with User, Many-to-One with Product)
@@ -81,8 +81,8 @@ CREATE TABLE Recommendation (
     UserID INT,
     RecommendedProductID INT,
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (RecommendedProductID) REFERENCES Product (ProductID)
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
+    FOREIGN KEY (RecommendedProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
 );
 
 -- History Entity (Many-to-One with User, Many-to-One with Product)
@@ -91,8 +91,8 @@ CREATE TABLE History (
     UserID INT,
     ProductID INT,
     Date DATETIME DEFAULT CURRENT_TIMESTAMP,
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID)
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
 );
 
 -- Favorites Entity (Many-to-One with User, Many-to-One with Product)
@@ -100,8 +100,8 @@ CREATE TABLE Favorites (
     FavoriteID INT AUTO_INCREMENT PRIMARY KEY,
     UserID INT,
     ProductID INT,
-    FOREIGN KEY (UserID) REFERENCES User (UserID),
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID),
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE,
     UNIQUE (UserID, ProductID)
 );
 
@@ -110,8 +110,8 @@ CREATE TABLE Product_Category (
     ProductID INT,
     CategoryID INT,
     PRIMARY KEY (ProductID, CategoryID),
-    FOREIGN KEY (ProductID) REFERENCES Product (ProductID),
-    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID)
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE,
+    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID) ON DELETE CASCADE
 );
 
 -- Login Authentication table

From 444b436983cb62f7a441457a4e237cbf60468afd Mon Sep 17 00:00:00 2001
From: estherdev03 <esthertrandev@gmail.com>
Date: Sun, 20 Apr 2025 20:56:14 -0600
Subject: [PATCH 6/8] Add transaction section to admin dashboard

---
 backend/controllers/transaction.js          | 40 +++++++++
 backend/index.js                            |  2 +
 backend/routes/transaction.js               | 12 +++
 frontend/src/App.jsx                        |  5 ++
 frontend/src/api/admin.js                   | 24 ++++++
 frontend/src/components/DashboardNav.jsx    | 15 ++++
 frontend/src/pages/CategoryDashboard.jsx    | 73 ++++++++++-------
 frontend/src/pages/ProductDashboard.jsx     | 84 ++++++++++---------
 frontend/src/pages/TransactionDashboard.jsx | 91 +++++++++++++++++++++
 9 files changed, 277 insertions(+), 69 deletions(-)
 create mode 100644 backend/controllers/transaction.js
 create mode 100644 backend/routes/transaction.js
 create mode 100644 frontend/src/pages/TransactionDashboard.jsx

diff --git a/backend/controllers/transaction.js b/backend/controllers/transaction.js
new file mode 100644
index 0000000..ace31bb
--- /dev/null
+++ b/backend/controllers/transaction.js
@@ -0,0 +1,40 @@
+const db = require("../utils/database");
+
+exports.getTransactionWithPagination = async (req, res) => {
+  const limit = +req.query?.limit;
+  const page = +req.query?.page;
+  const offset = (page - 1) * limit;
+  try {
+    const [data, _] = await db.execute(
+      `SELECT T.TransactionID, DATE_FORMAT(T.Date, '%b-%d-%Y %h:%i %p') as Date, T.PaymentStatus, U.Name as UserName, P.Name as ProductName 
+			      FROM Transaction T
+			      LEFT JOIN User U ON T.UserID = U.UserID
+            LEFT JOIN Product P ON T.ProductID = P.ProductID
+            ORDER BY T.TransactionID ASC LIMIT ? OFFSET ?`,
+      [limit.toString(), offset.toString()]
+    );
+
+    const [result] = await db.execute(
+      "SELECT COUNT(*) AS count FROM Transaction"
+    );
+    const { count: total } = result[0];
+    return res.json({ data, total });
+  } catch (error) {
+    res.json({ error: "Cannot fetch transactions from database!" });
+  }
+};
+
+exports.removeTransation = async (req, res) => {
+  const { id } = req.params;
+  try {
+    const [result] = await db.execute(
+      "DELETE FROM Transaction WHERE TransactionID = ?;",
+      [id.toString()]
+    );
+    return res.json({ message: "Remove transaction successfully!" });
+  } catch (error) {
+    return res
+      .status(500)
+      .json({ error: "Cannot remove transactions from database!" });
+  }
+};
diff --git a/backend/index.js b/backend/index.js
index 5ba3b27..796860f 100644
--- a/backend/index.js
+++ b/backend/index.js
@@ -10,6 +10,7 @@ const recommendedRouter = require("./routes/recommendation");
 const history = require("./routes/history");
 const review = require("./routes/review");
 const categoryRouter = require("./routes/category");
+const transactionRouter = require("./routes/transaction");
 
 const { generateEmailTransporter } = require("./utils/mail");
 const {
@@ -44,6 +45,7 @@ app.use("/api/engine", recommendedRouter);
 app.use("/api/history", history);
 app.use("/api/review", review);
 app.use("/api/category", categoryRouter);
+app.use("/api/transaction", transactionRouter);
 
 // Set up a scheduler to run cleanup every hour
 clean_up_time = 30 * 60 * 1000;
diff --git a/backend/routes/transaction.js b/backend/routes/transaction.js
new file mode 100644
index 0000000..0788b96
--- /dev/null
+++ b/backend/routes/transaction.js
@@ -0,0 +1,12 @@
+const express = require("express");
+const {
+  getTransactionWithPagination,
+  removeTransation,
+} = require("../controllers/transaction");
+
+const router = express.Router();
+
+router.get("/getTransactions", getTransactionWithPagination);
+router.delete("/:id", removeTransation);
+
+module.exports = router;
diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index eefdb63..ac28ad5 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -19,6 +19,7 @@ import ProductDashboard from "./pages/ProductDashboard";
 import DashboardNav from "./components/DashboardNav";
 import CategoryDashboard from "./pages/CategoryDashboard";
 import { verifyIsAdmin } from "./api/admin";
+import TransactionDashboard from "./pages/TransactionDashboard";
 
 function App() {
   // Authentication state - initialize from localStorage if available
@@ -710,6 +711,10 @@ function App() {
             <Route path="/admin/user" element={<UserDashboard />} />
             <Route path="/admin/product" element={<ProductDashboard />} />
             <Route path="/admin/category" element={<CategoryDashboard />} />
+            <Route
+              path="/admin/transaction"
+              element={<TransactionDashboard />}
+            />
             <Route path="*" element={<Dashboard />} />
           </Routes>
         </div>
diff --git a/frontend/src/api/admin.js b/frontend/src/api/admin.js
index f2728c9..bea2a15 100644
--- a/frontend/src/api/admin.js
+++ b/frontend/src/api/admin.js
@@ -40,6 +40,19 @@ export const getCategories = async (page, limit = 10) => {
   }
 };
 
+export const getTransactions = async (page, limit = 10) => {
+  try {
+    const { data } = await client.get(
+      `/transaction/getTransactions?limit=${limit}&page=${page}`
+    );
+    return { transactions: data.data, total: data.total };
+  } catch (error) {
+    const { response } = error;
+    if (response?.data) return response.data;
+    return { error: error.message || error };
+  }
+};
+
 export const addCategory = async (name) => {
   try {
     const { data } = await client.post(`/category/addCategory`, { name: name });
@@ -94,3 +107,14 @@ export const verifyIsAdmin = async (id) => {
     return { error: error.message || error };
   }
 };
+
+export const removeTransaction = async (id) => {
+  try {
+    const { data } = await client.delete(`/transaction/${id}`);
+    return { message: data.message };
+  } catch (error) {
+    const { response } = error;
+    if (response?.data) return response.data;
+    return { error: error.message || error };
+  }
+};
diff --git a/frontend/src/components/DashboardNav.jsx b/frontend/src/components/DashboardNav.jsx
index 75e287c..5f19de2 100644
--- a/frontend/src/components/DashboardNav.jsx
+++ b/frontend/src/components/DashboardNav.jsx
@@ -3,6 +3,7 @@ import { FaUserTag } from "react-icons/fa";
 import { FaBoxArchive } from "react-icons/fa6";
 import { MdOutlineCategory } from "react-icons/md";
 import { FaArrowLeft } from "react-icons/fa";
+import { FaMoneyBillTransfer } from "react-icons/fa6";
 
 export default function DashboardNav({ handleCloseAdminDashboard }) {
   const handleClick = () => {
@@ -69,6 +70,20 @@ export default function DashboardNav({ handleCloseAdminDashboard }) {
               <span className="pl-3">Categories</span>
             </NavLink>
           </li>
+          <li className="w-fit pl-10">
+            <NavLink
+              to="/admin/transaction"
+              className={({ isActive }) =>
+                (isActive
+                  ? "text-green-400"
+                  : "text-white transition-all hover:text-green-200") +
+                " flex items-center px-5 text-lg pt-5"
+              }
+            >
+              <FaMoneyBillTransfer />
+              <span className="pl-3">Transaction</span>
+            </NavLink>
+          </li>
         </ul>
         <div
           onClick={handleClick}
diff --git a/frontend/src/pages/CategoryDashboard.jsx b/frontend/src/pages/CategoryDashboard.jsx
index 8a9464f..e08c82f 100644
--- a/frontend/src/pages/CategoryDashboard.jsx
+++ b/frontend/src/pages/CategoryDashboard.jsx
@@ -36,7 +36,7 @@ export default function CategoryDashboard() {
 
   const handleRemove = (id) => {
     removeCategory(id)
-      .then((res) => {
+      .then(() => {
         fetchCategory(currentPage);
       })
       .catch((err) => {
@@ -48,7 +48,7 @@ export default function CategoryDashboard() {
   useEffect(fetchCategory, []);
 
   return (
-    <div className="pt-10 p-20">
+    <div className="pt-10 p-20 w-full">
       <h1 className="text-4xl pb-3 font-bold text-green-800 underline">
         CATEGORIES
       </h1>
@@ -60,35 +60,46 @@ export default function CategoryDashboard() {
         <IoAddCircleSharp />
       </button>
       <CategoryForm onAddCategory={notiChange} visible={visible} />
-      <table className="table-fixed w-full text-center border border-green-600">
-        <thead className="bg-green-600 h-10">
-          <tr>
-            <th>CategoryID</th>
-            <th>Name</th>
-            <th>Action</th>
-          </tr>
-        </thead>
-        <tbody>
-          {categories.map((category) => (
-            <tr key={category.UserID} className="border border-green-600 h-10">
-              <td>{category.CategoryID}</td>
-              <td>{category.Name}</td>
-              <td className="flex justify-center pt-2">
-                <MdDelete
-                  onClick={() => {
-                    handleRemove(category.CategoryID);
-                  }}
-                  className="hover:text-red-600 cursor-pointer transition-all text-xl"
-                />
-              </td>
-            </tr>
-          ))}
-        </tbody>
-      </table>
-      <Pagination
-        pageNum={Math.ceil(total / pageLimit)}
-        onChange={onChangePage}
-      />
+      {categories.length > 0 ? (
+        <>
+          <table className="table-fixed w-full text-center border border-green-600">
+            <thead className="bg-green-600 h-10">
+              <tr>
+                <th>CategoryID</th>
+                <th>Name</th>
+                <th>Action</th>
+              </tr>
+            </thead>
+            <tbody>
+              {categories.map((category) => (
+                <tr
+                  key={category.UserID}
+                  className="border border-green-600 h-10"
+                >
+                  <td>{category.CategoryID}</td>
+                  <td>{category.Name}</td>
+                  <td className="flex justify-center pt-2">
+                    <MdDelete
+                      onClick={() => {
+                        handleRemove(category.CategoryID);
+                      }}
+                      className="hover:text-red-600 cursor-pointer transition-all text-xl"
+                    />
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+          <Pagination
+            pageNum={Math.ceil(total / pageLimit)}
+            onChange={onChangePage}
+          />
+        </>
+      ) : (
+        <p className="text-red-700 text-xl bg-red-200 px-3 rounded-md py-1 w-fit">
+          No category exists!
+        </p>
+      )}
     </div>
   );
 }
diff --git a/frontend/src/pages/ProductDashboard.jsx b/frontend/src/pages/ProductDashboard.jsx
index c3ef4d2..35ce13e 100644
--- a/frontend/src/pages/ProductDashboard.jsx
+++ b/frontend/src/pages/ProductDashboard.jsx
@@ -40,44 +40,52 @@ export default function ProductDashboard() {
       <h1 className="text-4xl pb-3 font-bold text-green-800 underline">
         PRODUCTS
       </h1>
-      <table className="table-fixed w-full text-center border border-green-600">
-        <thead className="bg-green-600 h-10">
-          <tr>
-            <th>ProductID</th>
-            <th>Name</th>
-            <th>Price</th>
-            <th>Category</th>
-            <th>Seller</th>
-            <th>Action</th>
-          </tr>
-        </thead>
-        <tbody>
-          {products.map((product) => (
-            <tr
-              key={product.ProductID}
-              className="border border-green-600 h-10"
-            >
-              <td>{product.ProductID}</td>
-              <td>{product.ProductName}</td>
-              <td>{product.Price}</td>
-              <td>{product.Category ? product.Category : "N/A"}</td>
-              <td>{product.SellerName ? product.SellerName : "N/A"}</td>
-              <td className="flex justify-center pt-2">
-                <MdDelete
-                  onClick={() => {
-                    handleRemoveProduct(product.ProductID);
-                  }}
-                  className="hover:text-red-600 cursor-pointer transition-all text-xl"
-                />
-              </td>
-            </tr>
-          ))}
-        </tbody>
-      </table>
-      <Pagination
-        onChange={onChangePage}
-        pageNum={Math.ceil(total / pageLimit)}
-      />
+      {products.length > 0 ? (
+        <>
+          <table className="table-fixed w-full text-center border border-green-600">
+            <thead className="bg-green-600 h-10">
+              <tr>
+                <th>ProductID</th>
+                <th>Name</th>
+                <th>Price</th>
+                <th>Category</th>
+                <th>Seller</th>
+                <th>Action</th>
+              </tr>
+            </thead>
+            <tbody>
+              {products.map((product) => (
+                <tr
+                  key={product.ProductID}
+                  className="border border-green-600 h-10"
+                >
+                  <td>{product.ProductID}</td>
+                  <td>{product.ProductName}</td>
+                  <td>{product.Price}</td>
+                  <td>{product.Category ? product.Category : "N/A"}</td>
+                  <td>{product.SellerName ? product.SellerName : "N/A"}</td>
+                  <td className="flex justify-center pt-2">
+                    <MdDelete
+                      onClick={() => {
+                        handleRemoveProduct(product.ProductID);
+                      }}
+                      className="hover:text-red-600 cursor-pointer transition-all text-xl"
+                    />
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+          <Pagination
+            onChange={onChangePage}
+            pageNum={Math.ceil(total / pageLimit)}
+          />
+        </>
+      ) : (
+        <p className="text-red-700 text-xl bg-red-200 px-3 rounded-md py-1 w-fit">
+          No product exists!
+        </p>
+      )}
     </div>
   );
 }
diff --git a/frontend/src/pages/TransactionDashboard.jsx b/frontend/src/pages/TransactionDashboard.jsx
new file mode 100644
index 0000000..167d5ee
--- /dev/null
+++ b/frontend/src/pages/TransactionDashboard.jsx
@@ -0,0 +1,91 @@
+import { useEffect, useState } from "react";
+import { getTransactions, removeTransaction } from "../api/admin";
+import { MdDelete } from "react-icons/md";
+import Pagination from "../components/Pagination";
+
+export default function TransactionDashboard() {
+  const [transactions, setTransactions] = useState([]);
+  const [total, setTotal] = useState(0);
+  const [currentPage, setCurrentPage] = useState(1);
+
+  let pageLimit = 10;
+
+  const onChangePage = (page, limit = 10) => {
+    setCurrentPage(page);
+    fetchTransactions(page, limit);
+  };
+
+  const fetchTransactions = (page = 1, limit = 10) => {
+    getTransactions(page, limit).then(({ transactions, total }) => {
+      setTotal(total);
+      setTransactions(transactions);
+    });
+  };
+
+  const handleRemoveTransaction = (id) => {
+    removeTransaction(id)
+      .then(() => {
+        fetchTransactions(currentPage);
+      })
+      .catch((err) => {
+        console.log(err);
+      });
+  };
+
+  //Get user when initialize the component
+  useEffect(fetchTransactions, []);
+
+  return (
+    <div className="pt-10 p-20">
+      <h1 className="text-4xl pb-3 font-bold text-green-800 underline">
+        TRANSACTIONS
+      </h1>
+      {transactions.length > 0 ? (
+        <>
+          <table className="table-fixed w-full text-center border border-green-600">
+            <thead className="bg-green-600 h-10">
+              <tr>
+                <th>TransactionID</th>
+                <th>User</th>
+                <th>Product</th>
+                <th>Date</th>
+                <th>Status</th>
+                <th>Action</th>
+              </tr>
+            </thead>
+            <tbody>
+              {transactions.map((t) => (
+                <tr
+                  key={t.TransactionID}
+                  className="border border-green-600 h-10"
+                >
+                  <td>{t.TransactionID}</td>
+                  <td>{t.UserName ? t.UserName : "N/A"}</td>
+                  <td>{t.ProductName ? t.ProductName : "N/A"}</td>
+                  <td>{t.Date}</td>
+                  <td>{t.PaymentStatus}</td>
+                  <td className="flex justify-center pt-2">
+                    <MdDelete
+                      onClick={() => {
+                        handleRemoveTransaction(t.TransactionID);
+                      }}
+                      className="hover:text-red-600 cursor-pointer transition-all text-xl"
+                    />
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+          <Pagination
+            onChange={onChangePage}
+            pageNum={Math.ceil(total / pageLimit)}
+          />
+        </>
+      ) : (
+        <p className="text-red-700 text-xl bg-red-200 px-3 rounded-md py-1 w-fit">
+          No transaction exists!
+        </p>
+      )}
+    </div>
+  );
+}

From 8347689f6c357efa568bb46bf365ea1bbf102eb4 Mon Sep 17 00:00:00 2001
From: Mann Patel <130435633+MannPatel0@users.noreply.github.com>
Date: Sun, 20 Apr 2025 22:07:40 -0600
Subject: [PATCH 7/8] uploads

---
 backend/utils/database.js                     |   1 -
 mysql-code/Init-Data.sql                      |  89 +++++++++---------
 .../__pycache__/app.cpython-313.pyc           | Bin 11849 -> 11849 bytes
 3 files changed, 44 insertions(+), 46 deletions(-)

diff --git a/backend/utils/database.js b/backend/utils/database.js
index ffc5ef3..379d5df 100644
--- a/backend/utils/database.js
+++ b/backend/utils/database.js
@@ -4,7 +4,6 @@ const pool = mysql.createPool({
   host: "localhost",
   user: "root",
   database: "Marketplace",
-  password: "12345678",
 });
 
 // const pool = mysql.createPool(
diff --git a/mysql-code/Init-Data.sql b/mysql-code/Init-Data.sql
index 89747ab..b636c7a 100644
--- a/mysql-code/Init-Data.sql
+++ b/mysql-code/Init-Data.sql
@@ -81,28 +81,27 @@ VALUES
     ('Art Supplies'),
     ('Kitchen Appliances'),
     ('Gaming'),
-    ( 'Bicycles'),
-    ( 'Computer Accessories'),
-    ( 'Stationery'),
-    ( 'Fitness Equipment'),
-    ( 'Winter Sports'),
-    ( 'Lab Equipment'),
-    ( 'Camping Gear'),
-    ( 'School Supplies'),
-    ( 'Office Furniture'),
-    ( 'Books (-textbook)'),
-    ( 'Math & Science Resources'),
-    ( 'Engineering Tools'),
-    ( 'Backpacks & Bags'),
-    ( 'Audio Equipment'),
-    ( 'Dorm Essentials'),
-    ( 'Smartphones & Tablets'),
-    ( 'Winter Clothing'),
-    ( 'Photography Equipment'),
-    ( 'Event Tickets'),
-    ( 'Software Licenses'),
-    ( 'Transportation (Car Pool)');
-
+    ('Bicycles'),
+    ('Computer Accessories'),
+    ('Stationery'),
+    ('Fitness Equipment'),
+    ('Winter Sports'),
+    ('Lab Equipment'),
+    ('Camping Gear'),
+    ('School Supplies'),
+    ('Office Furniture'),
+    ('Books (-textbook)'),
+    ('Math & Science Resources'),
+    ('Engineering Tools'),
+    ('Backpacks & Bags'),
+    ('Audio Equipment'),
+    ('Dorm Essentials'),
+    ('Smartphones & Tablets'),
+    ('Winter Clothing'),
+    ('Photography Equipment'),
+    ('Event Tickets'),
+    ('Software Licenses'),
+    ('Transportation (Car Pool)');
 
 -- Insert Products
 INSERT INTO
@@ -321,29 +320,29 @@ VALUES
 INSERT INTO
     Image_URL (URL, ProductID)
 VALUES
-    ('/Pictures/Dell1.jpg', 1),
-    ('/Pictures/Dell2.jpg', 1),
-    ('/Pictures/Dell3.jpg', 1),
-    ('/Pictures/HP-Laptop1.jpg', 2),
-    ('/Pictures/HP-Laptop1.jpg', 2),
-    ('/Pictures/Dorm-Desk.jpg', 3),
-    ('/Pictures/University-Hoodie.jpg', 4),
-    ('/Pictures/Basketball.jpg', 5),
-    ('/Pictures/Acoustic-Guitar.jpg', 6),
-    ('/Pictures/Physics-Textbook.jpg', 7),
-    ('/Pictures/Mini-Fridge.jpg', 8),
-    ('/Pictures/Controller.jpg', 9),
-    ('/Pictures/Mountain-Bike.jpg', 10),
-    ('/Pictures/Wireless-Mouse.jpg', 11),
-    ('/Pictures/Lab-Coat.jpg', 12),
-    ('/Pictures/Calculator.jpg', 13),
-    ('/Pictures/Yoga-Mat.jpg', 14),
-    ('/Pictures/Winter-Jacket.jpg', 15),
-    ('/Pictures/CS-Textbook.jpg', 16),
-    ('/Pictures/Desk-Lamp.jpg', 17),
-    ('/Pictures/HP-Calculator.jpg', 18),
-    ('/Pictures/Bluetooth-Speaker.jpg', 19),
-    ('/Pictures/Backpack.jpg', 20);
+    ('/Uploads/Dell1.jpg', 1),
+    ('/Uploads/Dell2.jpg', 1),
+    ('/Uploads/Dell3.jpg', 1),
+    ('/Uploads/HP-Laptop1.jpg', 2),
+    ('/Uploads/HP-Laptop1.jpg', 2),
+    ('/Uploads/Dorm-Desk.jpg', 3),
+    ('/Uploads/University-Hoodie.jpg', 4),
+    ('/Uploads/Basketball.jpg', 5),
+    ('/Uploads/Acoustic-Guitar.jpg', 6),
+    ('/Uploads/Physics-Textbook.jpg', 7),
+    ('/Uploads/Mini-Fridge.jpg', 8),
+    ('/Uploads/Controller.jpg', 9),
+    ('/Uploads/Mountain-Bike.jpg', 10),
+    ('/Uploads/Wireless-Mouse.jpg', 11),
+    ('/Uploads/Lab-Coat.jpg', 12),
+    ('/Uploads/Calculator.jpg', 13),
+    ('/Uploads/Yoga-Mat.jpg', 14),
+    ('/Uploads/Winter-Jacket.jpg', 15),
+    ('/Uploads/CS-Textbook.jpg', 16),
+    ('/Uploads/Desk-Lamp.jpg', 17),
+    ('/Uploads/HP-Calculator.jpg', 18),
+    ('/Uploads/Bluetooth-Speaker.jpg', 19),
+    ('/Uploads/Backpack.jpg', 20);
 
 -- Insert Product-Category relationships (products with multiple categories)
 INSERT INTO
diff --git a/recommondation-engine/__pycache__/app.cpython-313.pyc b/recommondation-engine/__pycache__/app.cpython-313.pyc
index 1a5844b7cbc5caba7202300616523e6986d1fd68..fb4ea10b64b1126bc955c142bc824715311c94fe 100644
GIT binary patch
delta 19
ZcmX>Zb25hOGcPX}0}ycR-^gXJ2LL~t1zP|B

delta 19
ZcmX>Zb25hOGcPX}0}zz$+{k6G2LM751;YRU


From 5228bf73c9c57e626675f6837d24c1ca9c8ce033 Mon Sep 17 00:00:00 2001
From: Mann Patel <130435633+MannPatel0@users.noreply.github.com>
Date: Mon, 21 Apr 2025 01:01:58 -0600
Subject: [PATCH 8/8] refactor for redundant code

---
 backend/controllers/product.js              |   4 +-
 backend/routes/product.js                   |   3 +-
 frontend/src/App.jsx                        | 251 +++++++-------
 frontend/src/api/admin.js                   | 173 +++++-----
 frontend/src/api/client.js                  |   3 -
 frontend/src/components/DashboardNav.jsx    |  99 +-----
 frontend/src/pages/CategoryDashboard.jsx    | 105 ------
 frontend/src/pages/Dashboard.jsx            | 361 +++++++++++++++++++-
 frontend/src/pages/ProductDashboard.jsx     |  91 -----
 frontend/src/pages/TransactionDashboard.jsx |  91 -----
 frontend/src/pages/UserDashboard.jsx        |  91 -----
 frontend/src/schema.sql                     | 124 +++++++
 mysql-code/Init-Data.sql                    |   3 +-
 mysql-code/Schema.sql                       |  19 +-
 14 files changed, 726 insertions(+), 692 deletions(-)
 delete mode 100644 frontend/src/api/client.js
 delete mode 100644 frontend/src/pages/CategoryDashboard.jsx
 delete mode 100644 frontend/src/pages/ProductDashboard.jsx
 delete mode 100644 frontend/src/pages/TransactionDashboard.jsx
 delete mode 100644 frontend/src/pages/UserDashboard.jsx
 create mode 100644 frontend/src/schema.sql

diff --git a/backend/controllers/product.js b/backend/controllers/product.js
index 44185a5..31ca2ec 100644
--- a/backend/controllers/product.js
+++ b/backend/controllers/product.js
@@ -391,9 +391,9 @@ exports.getProductWithPagination = async (req, res) => {
   }
 };
 
-exports.removeProduct = async (req, res) => {
+exports.removeAnyProduct = async (req, res) => {
   const { id } = req.params;
-
+  console.log(id);
   try {
     const [result] = await db.execute(
       `DELETE FROM Product WHERE ProductID = ?`,
diff --git a/backend/routes/product.js b/backend/routes/product.js
index 09000cd..5862209 100644
--- a/backend/routes/product.js
+++ b/backend/routes/product.js
@@ -8,6 +8,7 @@ const {
   getProductById,
   addProduct,
   removeProduct,
+  removeAnyProduct,
   getProductWithPagination,
   myProduct,
   updateProduct,
@@ -30,7 +31,7 @@ router.post("/addProduct", addProduct);
 router.get("/getProduct", getAllProducts);
 
 //Remove product
-router.delete("/:id", removeProduct);
+router.delete("/any/:id", removeAnyProduct);
 //Get products with pagination
 router.get("/getProductWithPagination", getProductWithPagination);
 
diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index 38d0009..3cd6a94 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -4,6 +4,7 @@ import {
   Routes,
   Route,
   Navigate,
+  useLocation,
 } from "react-router-dom";
 import Navbar from "./components/Navbar";
 import Home from "./pages/Home";
@@ -12,14 +13,10 @@ import Selling from "./pages/Selling";
 import Transactions from "./pages/Transactions";
 import Favorites from "./pages/Favorites";
 import ProductDetail from "./pages/ProductDetail";
-import SearchPage from "./pages/SearchPage"; // Make sure to import the SearchPage
-import Dashboard from "./pages/Dashboard";
-import UserDashboard from "./pages/UserDashboard";
-import ProductDashboard from "./pages/ProductDashboard";
+import SearchPage from "./pages/SearchPage";
+import Dashboard from "./pages/Dashboard"; // The single consolidated dashboard component
 import DashboardNav from "./components/DashboardNav";
-import CategoryDashboard from "./pages/CategoryDashboard";
 import { verifyIsAdmin } from "./api/admin";
-import TransactionDashboard from "./pages/TransactionDashboard";
 
 function App() {
   // Authentication state - initialize from localStorage if available
@@ -42,6 +39,18 @@ function App() {
     useState(false);
   const [recommendations, setRecommendations] = useState([]);
 
+  // Admin state
+  const [isAdmin, setIsAdmin] = useState(false);
+  const [showAdminDashboard, setShowAdminDashboard] = useState(false);
+
+  // Check URL to determine if we're in admin mode
+  useEffect(() => {
+    // If URL contains /admin, set showAdminDashboard to true
+    if (window.location.pathname.includes("/admin")) {
+      setShowAdminDashboard(true);
+    }
+  }, []);
+
   // New verification states
   const [verificationStep, setVerificationStep] = useState("initial"); // 'initial', 'code-sent', 'verifying'
   const [tempUserData, setTempUserData] = useState(null);
@@ -127,9 +136,6 @@ function App() {
     }
   };
 
-  const [isAdmin, setIsAdmin] = useState(false);
-  const [showAdminDashboard, setShowAdminDashboard] = useState(false);
-
   useEffect(() => {
     const userInfo = sessionStorage.getItem("user")
       ? JSON.parse(sessionStorage.getItem("user"))
@@ -142,9 +148,14 @@ function App() {
 
   const handleShowAdminDashboard = () => {
     setShowAdminDashboard(true);
+    // Update URL without reloading page
+    window.history.pushState({}, "", "/admin");
   };
+
   const handleCloseAdminDashboard = () => {
     setShowAdminDashboard(false);
+    // Update URL without reloading page
+    window.history.pushState({}, "", "/");
   };
 
   // Send verification code
@@ -436,6 +447,7 @@ function App() {
     setVerificationStep("initial");
     setTempUserData(null);
     setRecommendations([]);
+    setShowAdminDashboard(false);
 
     // Clear localStorage
     sessionStorage.removeItem("user");
@@ -774,126 +786,119 @@ function App() {
     return children;
   };
 
-  // If user is admin, show admin naviagtion
-  if (showAdminDashboard) {
-    return (
-      <Router>
+  return (
+    <Router>
+      {/* If admin dashboard should be shown */}
+      {showAdminDashboard ? (
         <div className="flex">
           <DashboardNav handleCloseAdminDashboard={handleCloseAdminDashboard} />
           <Routes>
-            {/* Admin routes */}
-            <Route path="/admin" element={<Dashboard />} />
-            <Route path="/admin/user" element={<UserDashboard />} />
-            <Route path="/admin/product" element={<ProductDashboard />} />
-            <Route path="/admin/category" element={<CategoryDashboard />} />
-            <Route
-              path="/admin/transaction"
-              element={<TransactionDashboard />}
-            />
-            <Route path="*" element={<Dashboard />} />
+            {/* Single admin route for consolidated dashboard */}
+            <Route path="/admin/*" element={<Dashboard />} />
+            {/* Any other path in admin mode should go to dashboard */}
+            <Route path="*" element={<Navigate to="/admin" />} />
           </Routes>
         </div>
-      </Router>
-    );
-  }
+      ) : (
+        /* Normal user interface */
+        <div className="min-h-screen bg-gray-50">
+          {/* Show loading overlay when generating recommendations */}
+          {isGeneratingRecommendations && <LoadingOverlay />}
 
-  return (
-    <Router>
-      <div className="min-h-screen bg-gray-50">
-        {/* Show loading overlay when generating recommendations */}
-        {isGeneratingRecommendations && <LoadingOverlay />}
-
-        {/* Only show navbar when authenticated */}
-        {isAuthenticated && (
-          <Navbar
-            isAdmin={isAdmin}
-            onLogout={handleLogout}
-            userName={user?.name}
-            handleShowAdminDashboard={handleShowAdminDashboard}
-          />
-        )}
-        <Routes>
-          {/* Public routes */}
-          <Route
-            path="/login"
-            element={isAuthenticated ? <Navigate to="/" /> : <LoginComponent />}
-          />
-          {/* Protected routes */}
-          <Route
-            path="/"
-            element={
-              <ProtectedRoute>
-                <div className="container mx-auto px-4 py-6">
-                  <Home recommendations={recommendations} />
-                </div>
-              </ProtectedRoute>
-            }
-          />
-          <Route
-            path="/product/:id"
-            element={
-              <ProtectedRoute>
-                <ProductDetail />
-              </ProtectedRoute>
-            }
-          />
-          <Route
-            path="/search"
-            element={
-              <ProtectedRoute>
-                <div className="container mx-auto px-4 py-6">
-                  <SearchPage />
-                </div>
-              </ProtectedRoute>
-            }
-          />
-          <Route
-            path="/settings"
-            element={
-              <ProtectedRoute>
-                <div className="container mx-auto px-4 py-6">
-                  <Settings />
-                </div>
-              </ProtectedRoute>
-            }
-          />
-          <Route
-            path="/selling"
-            element={
-              <ProtectedRoute>
-                <div className="container mx-auto px-4 py-6">
-                  <Selling />
-                </div>
-              </ProtectedRoute>
-            }
-          />
-          <Route
-            path="/transactions"
-            element={
-              <ProtectedRoute>
-                <div className="container mx-auto px-4 py-6">
-                  <Transactions />
-                </div>
-              </ProtectedRoute>
-            }
-          />
-          <Route
-            path="/favorites"
-            element={
-              <ProtectedRoute>
-                <div className="container mx-auto px-4 py-6">
-                  <Favorites />
-                </div>
-              </ProtectedRoute>
-            }
-          />
-          {/* Redirect to login for any unmatched routes */}
-          <Route
-            path="*"
-            element={<Navigate to={isAuthenticated ? "/" : "/login"} />}
-          />
-        </Routes>
-      </div>
+          {/* Only show navbar when authenticated */}
+          {isAuthenticated && (
+            <Navbar
+              isAdmin={isAdmin}
+              onLogout={handleLogout}
+              userName={user?.name}
+              handleShowAdminDashboard={handleShowAdminDashboard}
+            />
+          )}
+          <Routes>
+            {/* Public routes */}
+            <Route
+              path="/login"
+              element={
+                isAuthenticated ? <Navigate to="/" /> : <LoginComponent />
+              }
+            />
+            {/* Protected routes */}
+            <Route
+              path="/"
+              element={
+                <ProtectedRoute>
+                  <div className="container mx-auto px-4 py-6">
+                    <Home recommendations={recommendations} />
+                  </div>
+                </ProtectedRoute>
+              }
+            />
+            <Route
+              path="/product/:id"
+              element={
+                <ProtectedRoute>
+                  <ProductDetail />
+                </ProtectedRoute>
+              }
+            />
+            <Route
+              path="/search"
+              element={
+                <ProtectedRoute>
+                  <div className="container mx-auto px-4 py-6">
+                    <SearchPage />
+                  </div>
+                </ProtectedRoute>
+              }
+            />
+            <Route
+              path="/settings"
+              element={
+                <ProtectedRoute>
+                  <div className="container mx-auto px-4 py-6">
+                    <Settings />
+                  </div>
+                </ProtectedRoute>
+              }
+            />
+            <Route
+              path="/selling"
+              element={
+                <ProtectedRoute>
+                  <div className="container mx-auto px-4 py-6">
+                    <Selling />
+                  </div>
+                </ProtectedRoute>
+              }
+            />
+            <Route
+              path="/transactions"
+              element={
+                <ProtectedRoute>
+                  <div className="container mx-auto px-4 py-6">
+                    <Transactions />
+                  </div>
+                </ProtectedRoute>
+              }
+            />
+            <Route
+              path="/favorites"
+              element={
+                <ProtectedRoute>
+                  <div className="container mx-auto px-4 py-6">
+                    <Favorites />
+                  </div>
+                </ProtectedRoute>
+              }
+            />
+            {/* Redirect to login for any unmatched routes */}
+            <Route
+              path="*"
+              element={<Navigate to={isAuthenticated ? "/" : "/login"} />}
+            />
+          </Routes>
+        </div>
+      )}
     </Router>
   );
 }
diff --git a/frontend/src/api/admin.js b/frontend/src/api/admin.js
index bea2a15..7aaa648 100644
--- a/frontend/src/api/admin.js
+++ b/frontend/src/api/admin.js
@@ -1,77 +1,20 @@
-import client from "./client";
+// api.js
 
+import axios from "axios";
+
+const client = axios.create({
+  baseURL: "http://localhost:3030/api",
+});
+
+// Users
 export const getUsers = async (page, 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) {
-    const { response } = error;
-    if (response?.data) return response.data;
-    return { error: error.message || error };
-  }
-};
-
-export const getProducts = async (page, limit = 10) => {
-  try {
-    const { data } = await client.get(
-      `/product/getProductWithPagination?limit=${limit}&page=${page}`
-    );
-
-    return { products: data.products, total: data.totalProd };
-  } catch (error) {
-    const { response } = error;
-    if (response?.data) return response.data;
-    return { error: error.message || error };
-  }
-};
-
-export const getCategories = async (page, limit = 10) => {
-  try {
-    const { data } = await client.get(
-      `/category/getCategories?page=${page}&limit=${limit}`
-    );
-    return { data: data.data, total: data.total };
-  } catch (error) {
-    const { response } = error;
-    if (response?.data) return response.data;
-    return { error: error.message || error };
-  }
-};
-
-export const getTransactions = async (page, limit = 10) => {
-  try {
-    const { data } = await client.get(
-      `/transaction/getTransactions?limit=${limit}&page=${page}`
-    );
-    return { transactions: data.data, total: data.total };
-  } catch (error) {
-    const { response } = error;
-    if (response?.data) return response.data;
-    return { error: error.message || error };
-  }
-};
-
-export const addCategory = async (name) => {
-  try {
-    const { data } = await client.post(`/category/addCategory`, { name: name });
-    return { message: data.message };
-  } catch (error) {
-    const { response } = error;
-    if (response?.data) return response.data;
-    return { error: error.message || error };
-  }
-};
-
-export const removeCategory = async (id) => {
-  try {
-    const { data } = await client.delete(`/category/${id}`);
-    return { message: data.message };
-  } catch (error) {
-    const { response } = error;
-    if (response?.data) return response.data;
-    return { error: error.message || error };
+    return handleError(error);
   }
 };
 
@@ -80,20 +23,7 @@ export const removeUser = async (id) => {
     const { data } = await client.post(`/user/delete`, { userId: id });
     return { message: data.message };
   } catch (error) {
-    const { response } = error;
-    if (response?.data) return response.data;
-    return { error: error.message || error };
-  }
-};
-
-export const removeProduct = async (id) => {
-  try {
-    const { data } = await client.delete(`/product/${id}`);
-    return { message: data.message };
-  } catch (error) {
-    const { response } = error;
-    if (response?.data) return response.data;
-    return { error: error.message || error };
+    return handleError(error);
   }
 };
 
@@ -102,9 +32,70 @@ export const verifyIsAdmin = async (id) => {
     const { data } = await client.get(`/user/isAdmin/${id}`);
     return { isAdmin: data.isAdmin };
   } catch (error) {
-    const { response } = error;
-    if (response?.data) return response.data;
-    return { error: error.message || error };
+    return handleError(error);
+  }
+};
+
+// Products
+export const getProducts = async (page, limit = 10) => {
+  try {
+    const { data } = await client.get(
+      `/product/getProductWithPagination?limit=${limit}&page=${page}`,
+    );
+    return { products: data.products, total: data.totalProd };
+  } catch (error) {
+    return handleError(error);
+  }
+};
+
+export const removeProduct = async (id) => {
+  try {
+    const { data } = await client.delete(`/product/any/${id}`);
+    return { message: data.message };
+  } catch (error) {
+    return handleError(error);
+  }
+};
+
+// Categories
+export const getCategories = async (page, limit = 10) => {
+  try {
+    const { data } = await client.get(
+      `/category/getCategories?page=${page}&limit=${limit}`,
+    );
+    return { data: data.data, total: data.total };
+  } catch (error) {
+    return handleError(error);
+  }
+};
+
+export const addCategory = async (name) => {
+  try {
+    const { data } = await client.post(`/category/addCategory`, { name });
+    return { message: data.message };
+  } catch (error) {
+    return handleError(error);
+  }
+};
+
+export const removeCategory = async (id) => {
+  try {
+    const { data } = await client.delete(`/category/${id}`);
+    return { message: data.message };
+  } catch (error) {
+    return handleError(error);
+  }
+};
+
+// Transactions
+export const getTransactions = async (page, limit = 10) => {
+  try {
+    const { data } = await client.get(
+      `/transaction/getTransactions?limit=${limit}&page=${page}`,
+    );
+    return { transactions: data.data, total: data.total };
+  } catch (error) {
+    return handleError(error);
   }
 };
 
@@ -113,8 +104,16 @@ export const removeTransaction = async (id) => {
     const { data } = await client.delete(`/transaction/${id}`);
     return { message: data.message };
   } catch (error) {
-    const { response } = error;
-    if (response?.data) return response.data;
-    return { error: error.message || error };
+    return handleError(error);
   }
 };
+
+// Shared Error Handler
+const handleError = (error) => {
+  const { response } = error;
+  if (response?.data) return response.data;
+  return { error: error.message || error };
+};
+
+// Optional: export client if you want to use it elsewhere
+export default client;
diff --git a/frontend/src/api/client.js b/frontend/src/api/client.js
deleted file mode 100644
index bcb4831..0000000
--- a/frontend/src/api/client.js
+++ /dev/null
@@ -1,3 +0,0 @@
-import axios from "axios";
-const client = axios.create({ baseURL: "http://localhost:3030/api" });
-export default client;
diff --git a/frontend/src/components/DashboardNav.jsx b/frontend/src/components/DashboardNav.jsx
index 5f19de2..2013901 100644
--- a/frontend/src/components/DashboardNav.jsx
+++ b/frontend/src/components/DashboardNav.jsx
@@ -1,98 +1,15 @@
-import { Link, NavLink } from "react-router-dom";
-import { FaUserTag } from "react-icons/fa";
-import { FaBoxArchive } from "react-icons/fa6";
-import { MdOutlineCategory } from "react-icons/md";
 import { FaArrowLeft } from "react-icons/fa";
-import { FaMoneyBillTransfer } from "react-icons/fa6";
 
 export default function DashboardNav({ handleCloseAdminDashboard }) {
-  const handleClick = () => {
-    handleCloseAdminDashboard();
-  };
-
   return (
-    <div>
-      <div className="w-3xs h-screen bg-green-700 border border-green-700">
-        <ul>
-          <li>
-            <div className="flex-shrink-0 p-6 bg-green-200">
-              <Link to="/admin" className="flex items-center">
-                <img
-                  src="/icon/icon-512.png"
-                  alt="Campus Plug"
-                  className="h-8 px-2 "
-                />
-                <span className="hidden md:block text-green-700 font-bold text-2xl">
-                  Campus Plug
-                </span>
-              </Link>
-            </div>
-          </li>
-          <li className="w-fit pl-10">
-            <NavLink
-              to="/admin/user"
-              className={({ isActive }) =>
-                (isActive
-                  ? " text-green-400"
-                  : "text-white transition-all hover:text-green-200") +
-                " flex items-center px-5 text-lg pt-5 "
-              }
-            >
-              <FaUserTag />
-              <span className="pl-3">Users</span>
-            </NavLink>
-          </li>
-          <li className="w-fit pl-10">
-            <NavLink
-              to="/admin/product"
-              className={({ isActive }) =>
-                (isActive
-                  ? "text-green-400"
-                  : "text-white transition-all hover:text-green-200") +
-                " flex items-center px-5 text-lg pt-5"
-              }
-            >
-              <FaBoxArchive />
-              <span className="pl-3">Products</span>
-            </NavLink>
-          </li>
-          <li className="w-fit pl-10">
-            <NavLink
-              to="/admin/category"
-              className={({ isActive }) =>
-                (isActive
-                  ? "text-green-400"
-                  : "text-white transition-all hover:text-green-200") +
-                " flex items-center px-5 text-lg pt-5"
-              }
-            >
-              <MdOutlineCategory />
-              <span className="pl-3">Categories</span>
-            </NavLink>
-          </li>
-          <li className="w-fit pl-10">
-            <NavLink
-              to="/admin/transaction"
-              className={({ isActive }) =>
-                (isActive
-                  ? "text-green-400"
-                  : "text-white transition-all hover:text-green-200") +
-                " flex items-center px-5 text-lg pt-5"
-              }
-            >
-              <FaMoneyBillTransfer />
-              <span className="pl-3">Transaction</span>
-            </NavLink>
-          </li>
-        </ul>
-        <div
-          onClick={handleClick}
-          className=" text-center my-8 underline text-white underline-offset-4 flex justify-center items-center hover:cursor-pointer h-fit w-fit mx-auto hover:text-green-200 transition"
-        >
-          <FaArrowLeft className="text-sm mx-2 mt-1" />
-          <span>Go back to user page</span>
-        </div>
-      </div>
+    <div className="w-48 min-w-[12rem] bg-gray-100 text-emerald-600 flex flex-col p-4 shadow-md">
+      <button
+        onClick={handleCloseAdminDashboard}
+        className="flex items-center gap-2 text-sm font-medium hover:text-emerald-700 underline underline-offset-4 transition"
+      >
+        <FaArrowLeft className="text-xs mt-[1px]" />
+        Back to User Page
+      </button>
     </div>
   );
 }
diff --git a/frontend/src/pages/CategoryDashboard.jsx b/frontend/src/pages/CategoryDashboard.jsx
deleted file mode 100644
index e08c82f..0000000
--- a/frontend/src/pages/CategoryDashboard.jsx
+++ /dev/null
@@ -1,105 +0,0 @@
-import { useEffect, useState } from "react";
-import { getCategories, removeCategory } from "../api/admin";
-import { MdDelete } from "react-icons/md";
-import Pagination from "../components/Pagination";
-import { IoAddCircleSharp } from "react-icons/io5";
-import CategoryForm from "../components/CategoryForm";
-
-export default function CategoryDashboard() {
-  const [categories, setCategories] = useState([]);
-  const [total, setTotal] = useState(0);
-  const [currentPage, setCurrentPage] = useState(1);
-
-  let pageLimit = 10;
-
-  const [visible, setVisible] = useState(false);
-
-  const onChangePage = (page, limit = 10) => {
-    setCurrentPage(page);
-    fetchCategory(page, limit);
-  };
-
-  const fetchCategory = (page = 1, limit = 10) => {
-    getCategories(page, limit).then(({ data, total }) => {
-      setCategories(data);
-      setTotal(total);
-    });
-  };
-
-  const notiChange = () => {
-    fetchCategory(currentPage);
-  };
-
-  const handleToggleForm = () => {
-    setVisible((curr) => !curr);
-  };
-
-  const handleRemove = (id) => {
-    removeCategory(id)
-      .then(() => {
-        fetchCategory(currentPage);
-      })
-      .catch((err) => {
-        console.log(err);
-      });
-  };
-
-  //Get user when initialize the component
-  useEffect(fetchCategory, []);
-
-  return (
-    <div className="pt-10 p-20 w-full">
-      <h1 className="text-4xl pb-3 font-bold text-green-800 underline">
-        CATEGORIES
-      </h1>
-      <button
-        onClick={handleToggleForm}
-        className="flex justify-end items-center bg-blue-500 rounded-md px-2 text-white text-sm p-1 mb-1 ml-auto hover:cursor-pointer hover:bg-blue-600 transtion"
-      >
-        <span className="pr-1 text-xs">Add</span>
-        <IoAddCircleSharp />
-      </button>
-      <CategoryForm onAddCategory={notiChange} visible={visible} />
-      {categories.length > 0 ? (
-        <>
-          <table className="table-fixed w-full text-center border border-green-600">
-            <thead className="bg-green-600 h-10">
-              <tr>
-                <th>CategoryID</th>
-                <th>Name</th>
-                <th>Action</th>
-              </tr>
-            </thead>
-            <tbody>
-              {categories.map((category) => (
-                <tr
-                  key={category.UserID}
-                  className="border border-green-600 h-10"
-                >
-                  <td>{category.CategoryID}</td>
-                  <td>{category.Name}</td>
-                  <td className="flex justify-center pt-2">
-                    <MdDelete
-                      onClick={() => {
-                        handleRemove(category.CategoryID);
-                      }}
-                      className="hover:text-red-600 cursor-pointer transition-all text-xl"
-                    />
-                  </td>
-                </tr>
-              ))}
-            </tbody>
-          </table>
-          <Pagination
-            pageNum={Math.ceil(total / pageLimit)}
-            onChange={onChangePage}
-          />
-        </>
-      ) : (
-        <p className="text-red-700 text-xl bg-red-200 px-3 rounded-md py-1 w-fit">
-          No category exists!
-        </p>
-      )}
-    </div>
-  );
-}
diff --git a/frontend/src/pages/Dashboard.jsx b/frontend/src/pages/Dashboard.jsx
index dbcc762..6b991f6 100644
--- a/frontend/src/pages/Dashboard.jsx
+++ b/frontend/src/pages/Dashboard.jsx
@@ -1,7 +1,362 @@
-export default function Dashboard() {
+import { useEffect, useState, useCallback } from "react";
+import {
+  getUsers,
+  removeUser,
+  getTransactions,
+  removeTransaction,
+  getProducts,
+  removeProduct,
+  getCategories,
+  removeCategory,
+} 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>
+);
+
+// Empty State Component
+const EmptyState = () => (
+  <div className="flex flex-col items-center justify-center bg-gray-50 py-10 rounded-lg w-full">
+    <svg
+      className="w-16 h-16 text-gray-400"
+      fill="none"
+      stroke="currentColor"
+      viewBox="0 0 24 24"
+      xmlns="http://www.w3.org/2000/svg"
+    >
+      <path
+        strokeLinecap="round"
+        strokeLinejoin="round"
+        strokeWidth="2"
+        d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"
+      ></path>
+    </svg>
+    <p className="mt-4 text-lg font-medium text-gray-600">No data found</p>
+    <p className="mt-1 text-sm text-gray-500">
+      No records are currently available.
+    </p>
+  </div>
+);
+
+// Generic Dashboard Component
+const Dashboard = ({
+  fetchDataFn,
+  deleteFn,
+  columns,
+  idKey,
+  refreshKey = 0,
+  headerAction = null,
+}) => {
+  const navigate = useNavigate();
+  const [items, setItems] = useState([]);
+  const [total, setTotal] = useState(0);
+  const [currentPage, setCurrentPage] = useState(1);
+  const [loading, setLoading] = useState(true);
+  const pageLimit = 10;
+
+  const fetchItems = useCallback(
+    (page = 1, limit = 10) => {
+      setLoading(true);
+      fetchDataFn(page, limit)
+        .then((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);
+        })
+        .finally(() => setLoading(false));
+    },
+    [fetchDataFn],
+  );
+
+  const handleRemove = (id) => {
+    if (window.confirm("Are you sure you want to delete this item?")) {
+      setLoading(true);
+      deleteFn(id)
+        .then(() => fetchItems(currentPage))
+        .catch((error) => {
+          console.error("Error removing item:", error);
+          setLoading(false);
+        });
+    }
+  };
+
+  useEffect(() => {
+    fetchItems(currentPage);
+  }, [fetchItems, currentPage, refreshKey]);
+
+  const onChangePage = (page) => {
+    setCurrentPage(page);
+  };
+
+  if (loading) return <Spinner />;
+
   return (
-    <div className="text-3xl font-bold p-3 text-green-800">
-      Welcome to admin 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>
+        </h2>
+        {headerAction && <div>{headerAction}</div>}
+      </div>
+
+      {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">
+              <tr>
+                {columns.map((col) => (
+                  <th
+                    key={col.label}
+                    scope="col"
+                    className="px-6 py-3 text-left text-xs font-medium text-white uppercase tracking-wider"
+                  >
+                    {col.label}
+                  </th>
+                ))}
+                <th
+                  scope="col"
+                  className="px-6 py-3 text-center text-xs font-medium text-white uppercase tracking-wider w-20"
+                >
+                  Action
+                </th>
+              </tr>
+            </thead>
+            <tbody className="bg-white divide-y divide-gray-200">
+              {items.map((item) => (
+                <tr
+                  key={item[idKey]}
+                  className="hover:bg-gray-50 transition-colors"
+                >
+                  {columns.map((col) => (
+                    <td
+                      key={`${item[idKey]}-${col.key}`}
+                      className="px-6 py-4 whitespace-nowrap text-sm text-gray-700 overflow-hidden text-ellipsis"
+                    >
+                      {item[col.key] || "—"}
+                    </td>
+                  ))}
+                  <td className="px-6 py-4 whitespace-nowrap text-center text-sm font-medium">
+                    <button
+                      onClick={() => handleRemove(item[idKey])}
+                      className="text-red-500 hover:text-red-700 transition-colors"
+                      title="Delete"
+                    >
+                      <MdDelete size={20} />
+                    </button>
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </div>
+      ) : (
+        <EmptyState />
+      )}
+
+      {total > pageLimit && (
+        <div className="mt-4 w-full">
+          <Pagination
+            pageNum={Math.ceil(total / pageLimit)}
+            onChange={onChangePage}
+          />
+        </div>
+      )}
+    </div>
+  );
+};
+
+// Main Admin Tabs
+export default function AdminDashboardTabs() {
+  const [activeTab, setActiveTab] = useState(0);
+  const [tabData, setTabData] = useState({
+    users: { loaded: false, data: null },
+    products: { loaded: false, data: null },
+    transactions: { loaded: false, data: null },
+    categories: { loaded: false, data: null },
+  });
+
+  const [visible, setVisible] = useState(false);
+  const [categoryRefreshKey, setCategoryRefreshKey] = useState(0);
+  const toggleForm = () => setVisible((v) => !v);
+
+  // Preload all tab data
+  useEffect(() => {
+    const tabKeys = ["users", "products", "transactions", "categories"];
+    const loadTabData = async (index) => {
+      if (index === tabKeys.length) return;
+
+      setTabData((prev) => ({
+        ...prev,
+        [tabKeys[index]]: { ...prev[tabKeys[index]], loaded: true },
+      }));
+
+      // Load next tab after a short delay
+      setTimeout(() => loadTabData(index + 1), 100);
+    };
+
+    loadTabData(0);
+  }, []);
+
+  const tabs = [
+    {
+      title: "Users",
+      icon: "👥",
+      key: "users",
+      component: () => (
+        <Dashboard
+          fetchDataFn={getUsers}
+          deleteFn={removeUser}
+          idKey="UserID"
+          columns={[
+            { label: "ID", key: "UserID" },
+            { label: "UCID", key: "UCID" },
+            { label: "Name", key: "Name" },
+            { label: "Email", key: "Email" },
+            { label: "Phone", key: "Phone" },
+            { label: "Address", key: "Address" },
+          ]}
+        />
+      ),
+    },
+    {
+      title: "Products",
+      icon: "📦",
+      key: "products",
+      component: () => (
+        <Dashboard
+          fetchDataFn={getProducts}
+          deleteFn={removeProduct}
+          idKey="ProductID"
+          columns={[
+            { label: "ID", key: "ProductID" },
+            { label: "Name", key: "ProductName" },
+            { label: "Price", key: "Price" },
+            { label: "Category", key: "Category" },
+            { label: "Seller", key: "SellerName" },
+          ]}
+        />
+      ),
+    },
+    {
+      title: "Transactions",
+      icon: "💰",
+      key: "transactions",
+      component: () => (
+        <Dashboard
+          fetchDataFn={getTransactions}
+          deleteFn={removeTransaction}
+          idKey="TransactionID"
+          columns={[
+            { label: "ID", key: "TransactionID" },
+            { label: "User", key: "UserName" },
+            { label: "Product", key: "ProductName" },
+            { label: "Date", key: "Date" },
+            { label: "Status", key: "PaymentStatus" },
+          ]}
+        />
+      ),
+    },
+    {
+      title: "Categories",
+      icon: "🏷️",
+      key: "categories",
+      component: () => (
+        <>
+          <Dashboard
+            fetchDataFn={getCategories}
+            deleteFn={removeCategory}
+            idKey="CategoryID"
+            columns={[
+              { label: "ID", key: "CategoryID" },
+              { label: "Name", key: "Name" },
+            ]}
+            refreshKey={categoryRefreshKey}
+            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"
+              >
+                <IoAddCircleSharp className="mr-1" size={18} />
+                Add Category
+              </button>
+            }
+          />
+          <CategoryForm
+            visible={visible}
+            onAddCategory={() => {
+              setCategoryRefreshKey((prev) => prev + 1);
+              toggleForm();
+            }}
+          />
+        </>
+      ),
+    },
+  ];
+
+  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"
+            value={activeTab}
+            onChange={(e) => setActiveTab(parseInt(e.target.value))}
+          >
+            {tabs.map((tab, index) => (
+              <option key={tab.key} value={index}>
+                {tab.icon} {tab.title}
+              </option>
+            ))}
+          </select>
+        </div>
+
+        {/* Desktop Tabs */}
+        <div className="hidden md:flex space-x-1 border-b border-gray-200 w-full overflow-x-auto">
+          {tabs.map((tab, index) => (
+            <button
+              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"
+              }`}
+              onClick={() => setActiveTab(index)}
+            >
+              <span className="inline-block mr-2">{tab.icon}</span>
+              {tab.title}
+            </button>
+          ))}
+        </div>
+
+        <div className="bg-white p-4 md:p-6 rounded-lg shadow-sm border border-gray-200 mt-4 w-full">
+          <div className="w-full">
+            {tabData[tabs[activeTab].key].loaded && tabs[activeTab].component()}
+          </div>
+        </div>
+      </div>
     </div>
   );
 }
diff --git a/frontend/src/pages/ProductDashboard.jsx b/frontend/src/pages/ProductDashboard.jsx
deleted file mode 100644
index 35ce13e..0000000
--- a/frontend/src/pages/ProductDashboard.jsx
+++ /dev/null
@@ -1,91 +0,0 @@
-import { useEffect, useState } from "react";
-import { getProducts, removeProduct } from "../api/admin";
-import { MdDelete } from "react-icons/md";
-import Pagination from "../components/Pagination";
-
-export default function ProductDashboard() {
-  const [products, setProducts] = useState([]);
-  const [total, setTotal] = useState(0);
-  const [currentPage, setCurrentPage] = useState(1);
-
-  let pageLimit = 10;
-
-  const onChangePage = (page, limit = 10) => {
-    setCurrentPage(page);
-    fetchProducts(page, limit);
-  };
-
-  const fetchProducts = (page = 1, limit = 10) => {
-    getProducts(page, limit).then(({ products, total }) => {
-      setTotal(total);
-      setProducts(products);
-    });
-  };
-
-  const handleRemoveProduct = (id) => {
-    removeProduct(id)
-      .then((res) => {
-        fetchProducts(currentPage);
-      })
-      .catch((err) => {
-        console.log(err);
-      });
-  };
-
-  //Get user when initialize the component
-  useEffect(fetchProducts, []);
-
-  return (
-    <div className="pt-10 p-20">
-      <h1 className="text-4xl pb-3 font-bold text-green-800 underline">
-        PRODUCTS
-      </h1>
-      {products.length > 0 ? (
-        <>
-          <table className="table-fixed w-full text-center border border-green-600">
-            <thead className="bg-green-600 h-10">
-              <tr>
-                <th>ProductID</th>
-                <th>Name</th>
-                <th>Price</th>
-                <th>Category</th>
-                <th>Seller</th>
-                <th>Action</th>
-              </tr>
-            </thead>
-            <tbody>
-              {products.map((product) => (
-                <tr
-                  key={product.ProductID}
-                  className="border border-green-600 h-10"
-                >
-                  <td>{product.ProductID}</td>
-                  <td>{product.ProductName}</td>
-                  <td>{product.Price}</td>
-                  <td>{product.Category ? product.Category : "N/A"}</td>
-                  <td>{product.SellerName ? product.SellerName : "N/A"}</td>
-                  <td className="flex justify-center pt-2">
-                    <MdDelete
-                      onClick={() => {
-                        handleRemoveProduct(product.ProductID);
-                      }}
-                      className="hover:text-red-600 cursor-pointer transition-all text-xl"
-                    />
-                  </td>
-                </tr>
-              ))}
-            </tbody>
-          </table>
-          <Pagination
-            onChange={onChangePage}
-            pageNum={Math.ceil(total / pageLimit)}
-          />
-        </>
-      ) : (
-        <p className="text-red-700 text-xl bg-red-200 px-3 rounded-md py-1 w-fit">
-          No product exists!
-        </p>
-      )}
-    </div>
-  );
-}
diff --git a/frontend/src/pages/TransactionDashboard.jsx b/frontend/src/pages/TransactionDashboard.jsx
deleted file mode 100644
index 167d5ee..0000000
--- a/frontend/src/pages/TransactionDashboard.jsx
+++ /dev/null
@@ -1,91 +0,0 @@
-import { useEffect, useState } from "react";
-import { getTransactions, removeTransaction } from "../api/admin";
-import { MdDelete } from "react-icons/md";
-import Pagination from "../components/Pagination";
-
-export default function TransactionDashboard() {
-  const [transactions, setTransactions] = useState([]);
-  const [total, setTotal] = useState(0);
-  const [currentPage, setCurrentPage] = useState(1);
-
-  let pageLimit = 10;
-
-  const onChangePage = (page, limit = 10) => {
-    setCurrentPage(page);
-    fetchTransactions(page, limit);
-  };
-
-  const fetchTransactions = (page = 1, limit = 10) => {
-    getTransactions(page, limit).then(({ transactions, total }) => {
-      setTotal(total);
-      setTransactions(transactions);
-    });
-  };
-
-  const handleRemoveTransaction = (id) => {
-    removeTransaction(id)
-      .then(() => {
-        fetchTransactions(currentPage);
-      })
-      .catch((err) => {
-        console.log(err);
-      });
-  };
-
-  //Get user when initialize the component
-  useEffect(fetchTransactions, []);
-
-  return (
-    <div className="pt-10 p-20">
-      <h1 className="text-4xl pb-3 font-bold text-green-800 underline">
-        TRANSACTIONS
-      </h1>
-      {transactions.length > 0 ? (
-        <>
-          <table className="table-fixed w-full text-center border border-green-600">
-            <thead className="bg-green-600 h-10">
-              <tr>
-                <th>TransactionID</th>
-                <th>User</th>
-                <th>Product</th>
-                <th>Date</th>
-                <th>Status</th>
-                <th>Action</th>
-              </tr>
-            </thead>
-            <tbody>
-              {transactions.map((t) => (
-                <tr
-                  key={t.TransactionID}
-                  className="border border-green-600 h-10"
-                >
-                  <td>{t.TransactionID}</td>
-                  <td>{t.UserName ? t.UserName : "N/A"}</td>
-                  <td>{t.ProductName ? t.ProductName : "N/A"}</td>
-                  <td>{t.Date}</td>
-                  <td>{t.PaymentStatus}</td>
-                  <td className="flex justify-center pt-2">
-                    <MdDelete
-                      onClick={() => {
-                        handleRemoveTransaction(t.TransactionID);
-                      }}
-                      className="hover:text-red-600 cursor-pointer transition-all text-xl"
-                    />
-                  </td>
-                </tr>
-              ))}
-            </tbody>
-          </table>
-          <Pagination
-            onChange={onChangePage}
-            pageNum={Math.ceil(total / pageLimit)}
-          />
-        </>
-      ) : (
-        <p className="text-red-700 text-xl bg-red-200 px-3 rounded-md py-1 w-fit">
-          No transaction exists!
-        </p>
-      )}
-    </div>
-  );
-}
diff --git a/frontend/src/pages/UserDashboard.jsx b/frontend/src/pages/UserDashboard.jsx
deleted file mode 100644
index 9cab96d..0000000
--- a/frontend/src/pages/UserDashboard.jsx
+++ /dev/null
@@ -1,91 +0,0 @@
-import { useEffect, useState } from "react";
-import { getUsers, removeUser } from "../api/admin";
-import { MdDelete } from "react-icons/md";
-import Pagination from "../components/Pagination";
-
-export default function UserDashboard() {
-  const [users, setUsers] = useState([]);
-  const [total, setTotal] = useState(0);
-  const [currentPage, setCurrentPage] = useState(1);
-
-  let pageLimit = 10;
-
-  const onChangePage = (page, limit = 10) => {
-    setCurrentPage(page);
-    fetchUsers(page, limit);
-  };
-
-  const fetchUsers = (page = 1, limit = 10) => {
-    getUsers(page, limit).then(({ users, total }) => {
-      setUsers(users);
-      setTotal(total);
-    });
-  };
-
-  const handleRemoveUser = (id) => {
-    removeUser(id)
-      .then((res) => {
-        fetchUsers(currentPage);
-      })
-      .catch((err) => {
-        console.log(err);
-      });
-  };
-
-  //Get user when initialize the component
-  useEffect(fetchUsers, []);
-
-  return (
-    <div className="pt-10 p-20">
-      <h1 className="text-4xl pb-3 font-bold text-green-800 underline">
-        USERS
-      </h1>
-      {users.length > 0 ? (
-        <>
-          {" "}
-          <table className="table-fixed w-full text-center border border-green-600">
-            <thead className="bg-green-600 h-10">
-              <tr>
-                <th>UserID</th>
-                <th>UCID</th>
-                <th>Name</th>
-                <th>Email</th>
-                <th>Phone</th>
-                <th>Address</th>
-                <th>Action</th>
-              </tr>
-            </thead>
-            <tbody>
-              {users.map((user) => (
-                <tr key={user.UserID} className="border border-green-600 h-10">
-                  <td>{user.UserID}</td>
-                  <td>{user.UCID}</td>
-                  <td>{user.Name}</td>
-                  <td>{user.Email}</td>
-                  <td>{user.Phone}</td>
-                  <td>{user.Address}</td>
-                  <td className="flex justify-center pt-2">
-                    <MdDelete
-                      onClick={() => {
-                        handleRemoveUser(user.UserID);
-                      }}
-                      className="hover:text-red-600 cursor-pointer transition-all text-xl"
-                    />
-                  </td>
-                </tr>
-              ))}
-            </tbody>
-          </table>
-          <Pagination
-            pageNum={Math.ceil(total / pageLimit)}
-            onChange={onChangePage}
-          />
-        </>
-      ) : (
-        <p className="text-red-700 text-xl bg-red-200 px-3 rounded-md py-1">
-          No user exists!
-        </p>
-      )}
-    </div>
-  );
-}
diff --git a/frontend/src/schema.sql b/frontend/src/schema.sql
new file mode 100644
index 0000000..8dafcf0
--- /dev/null
+++ b/frontend/src/schema.sql
@@ -0,0 +1,124 @@
+-- MySql Version 9.2.0
+CREATE DATABASE Marketplace;
+
+USE Marketplace;
+
+-- User Entity
+CREATE TABLE User (
+    UserID INT AUTO_INCREMENT PRIMARY KEY,
+    Name VARCHAR(100) NOT NULL,
+    Email VARCHAR(100) UNIQUE NOT NULL,
+    UCID VARCHAR(20) UNIQUE NOT NULL,
+    Password VARCHAR(255) NOT NULL,
+    Phone VARCHAR(20),
+    Address VARCHAR(255)
+);
+
+CREATE TABLE UserRole (
+    UserID INT,
+    Client BOOLEAN DEFAULT True,
+    Admin BOOLEAN DEFAULT FALSE,
+    PRIMARY KEY (UserID),
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE
+);
+
+-- Category Entity (must be created before Product or else error)
+CREATE TABLE Category (
+    CategoryID INT AUTO_INCREMENT PRIMARY KEY,
+    Name VARCHAR(255) NOT NULL
+);
+
+-- Product Entity
+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) ON DELETE CASCADE,
+    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID) ON DELETE SET NULL
+);
+
+-- Fixed Image_URL table
+CREATE TABLE Image_URL (
+    URL VARCHAR(255),
+    ProductID INT,
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
+);
+
+-- Fixed Review Entity (Many-to-One with User, Many-to-One with Product)
+CREATE TABLE Review (
+    ReviewID INT AUTO_INCREMENT PRIMARY KEY,
+    UserID INT,
+    ProductID INT,
+    Comment TEXT,
+    Rating INT CHECK (
+        Rating >= 1
+        AND Rating <= 5
+    ),
+    Date DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
+);
+
+-- Transaction Entity (Many-to-One with User, Many-to-One with Product)
+CREATE TABLE Transaction (
+    TransactionID INT PRIMARY KEY,
+    UserID INT,
+    ProductID INT,
+    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 CASCADE 
+);
+
+-- Recommendation Entity (Many-to-One with User, Many-to-One with Product)
+CREATE TABLE Recommendation (
+    RecommendationID_PK INT AUTO_INCREMENT PRIMARY KEY,
+    UserID INT,
+    RecommendedProductID INT,
+    Date DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
+    FOREIGN KEY (RecommendedProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
+);
+
+-- History Entity (Many-to-One with User, Many-to-One with Product)
+CREATE TABLE History (
+    HistoryID INT AUTO_INCREMENT PRIMARY KEY,
+    UserID INT,
+    ProductID INT,
+    Date DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE
+);
+
+-- Favorites Entity (Many-to-One with User, Many-to-One with Product)
+CREATE TABLE Favorites (
+    FavoriteID INT AUTO_INCREMENT PRIMARY KEY,
+    UserID INT,
+    ProductID INT,
+    FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE CASCADE,
+    FOREIGN KEY (ProductID) REFERENCES Product (ProductID) ON DELETE CASCADE,
+    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,
+    Email VARCHAR(100) UNIQUE NOT NULL,
+    VerificationCode VARCHAR(6) NOT NULL,
+    Authenticated BOOLEAN DEFAULT FALSE,
+    Date DATETIME DEFAULT CURRENT_TIMESTAMP
+);
diff --git a/mysql-code/Init-Data.sql b/mysql-code/Init-Data.sql
index b636c7a..3c7dae5 100644
--- a/mysql-code/Init-Data.sql
+++ b/mysql-code/Init-Data.sql
@@ -101,7 +101,8 @@ VALUES
     ('Photography Equipment'),
     ('Event Tickets'),
     ('Software Licenses'),
-    ('Transportation (Car Pool)');
+    ('Transportation (Car Pool)'),
+    ('Other');
 
 -- Insert Products
 INSERT INTO
diff --git a/mysql-code/Schema.sql b/mysql-code/Schema.sql
index 508dc7d..e65a325 100644
--- a/mysql-code/Schema.sql
+++ b/mysql-code/Schema.sql
@@ -28,7 +28,6 @@ CREATE TABLE Category (
     Name VARCHAR(255) NOT NULL
 );
 
--- Product Entity
 CREATE TABLE Product (
     ProductID INT AUTO_INCREMENT PRIMARY KEY,
     Name VARCHAR(255) NOT NULL,
@@ -38,8 +37,22 @@ CREATE TABLE Product (
     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,
+    Name VARCHAR(255) NOT NULL,
+    Price DECIMAL(10, 2) NOT NULL,
+    StockQuantity INT,
+    UserID INT,
+    Description TEXT,
+    CategoryID INT,
+    Date DATETIME DEFAULT CURRENT_TIMESTAMP,
     FOREIGN KEY (UserID) REFERENCES User (UserID) ON DELETE SET NULL,
-    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID) ON DELETE SET NULL
+    FOREIGN KEY (CategoryID) REFERENCES Category (CategoryID)
 );
 
 -- Fixed Image_URL table
@@ -72,7 +85,7 @@ 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 SET NULL
 );
 
 -- Recommendation Entity (Many-to-One with User, Many-to-One with Product)