Add transaction section to admin dashboard

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!" });
+  }
+};

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;

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;

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>

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 };
+  }
+};

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}

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>
@@ -60,6 +60,8 @@ export default function CategoryDashboard() {
         <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>
@@ -70,7 +72,10 @@ export default function CategoryDashboard() {
             </thead>
             <tbody>
               {categories.map((category) => (
-            <tr key={category.UserID} className="border border-green-600 h-10">
+                <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">
@@ -89,6 +94,12 @@ export default function CategoryDashboard() {
             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>
   );
 }

frontend/src/pages/ProductDashboard.jsx

@@ -40,6 +40,8 @@ export default function ProductDashboard() {
       <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>
@@ -78,6 +80,12 @@ export default function ProductDashboard() {
             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>
   );
 }

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>
+  );
+}