Add login page feature

package-lock.json

@@ -18,6 +18,9 @@
         "react-scripts": "5.0.1",
         "tailwindcss": "^3.4.1",
         "web-vitals": "^2.1.4"
+      },
+      "devDependencies": {
+        "@babel/plugin-proposal-private-property-in-object": "^7.21.11"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
@@ -646,9 +649,17 @@
       }
     },
     "node_modules/@babel/plugin-proposal-private-property-in-object": {
-      "version": "7.21.0-placeholder-for-preset-env.2",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-private-property-in-object/-/plugin-proposal-private-property-in-object-7.21.0-placeholder-for-preset-env.2.tgz",
-      "integrity": "sha512-SOSkfJDddaM7mak6cPEpswyTRnuRltl429hMraQEglW+OkovnCzsiszTmsrlY//qLFjCpQDFRvjdm2wA5pPm9w==",
+      "version": "7.21.11",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-private-property-in-object/-/plugin-proposal-private-property-in-object-7.21.11.tgz",
+      "integrity": "sha512-0QZ8qP/3RLDVBwBFoWAwCtgcDZJVwA5LUJRZU8x2YFfKNuFq161wK3cuGrALu5yiPu+vzwTAg/sMWVNeWeNyaw==",
+      "deprecated": "This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-private-property-in-object instead.",
+      "dev": true,
+      "dependencies": {
+        "@babel/helper-annotate-as-pure": "^7.18.6",
+        "@babel/helper-create-class-features-plugin": "^7.21.0",
+        "@babel/helper-plugin-utils": "^7.20.2",
+        "@babel/plugin-syntax-private-property-in-object": "^7.14.5"
+      },
       "engines": {
         "node": ">=6.9.0"
       },
@@ -1891,6 +1902,17 @@
         "@babel/core": "^7.0.0-0"
       }
     },
+    "node_modules/@babel/preset-env/node_modules/@babel/plugin-proposal-private-property-in-object": {
+      "version": "7.21.0-placeholder-for-preset-env.2",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-private-property-in-object/-/plugin-proposal-private-property-in-object-7.21.0-placeholder-for-preset-env.2.tgz",
+      "integrity": "sha512-SOSkfJDddaM7mak6cPEpswyTRnuRltl429hMraQEglW+OkovnCzsiszTmsrlY//qLFjCpQDFRvjdm2wA5pPm9w==",
+      "engines": {
+        "node": ">=6.9.0"
+      },
+      "peerDependencies": {
+        "@babel/core": "^7.0.0-0"
+      }
+    },
     "node_modules/@babel/preset-env/node_modules/semver": {
       "version": "6.3.1",
       "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.1.tgz",

package.json

@@ -37,5 +37,8 @@
       "last 1 firefox version",
       "last 1 safari version"
     ]
+  },
+  "devDependencies": {
+    "@babel/plugin-proposal-private-property-in-object": "^7.21.11"
   }
 }

src/App.js

-// App.js
-import React from 'react';
-import { BrowserRouter as Router, Route, Routes } from 'react-router-dom';
+// src/App.js
+import React, { useState } from 'react';
+import { BrowserRouter as Router, Routes, Route, Navigate } from 'react-router-dom';
 import Home from './Home';
 import About from './About';
 import Insights from './Insights';
-import Navbar from './Navbar'; // Make sure to import the Navbar
+import Navbar from './Navbar';
+import LoginPage from './LoginPage';
 
 function App() {
+  const [isLoggedIn, setIsLoggedIn] = useState(false);
+
+  const handleLoginSuccess = () => {
+    setIsLoggedIn(true);
+  };
+
   return (
     <Router>
-      <Navbar />  
+      <Navbar />
       <Routes>
-        <Route path="/about" element={<About />} />
-        <Route path="/insights" element={<Insights />} />
-        <Route path="/" element={<Home />} />
+        {isLoggedIn ? (
+          // Render these routes only if the user is logged in
+          <>
+            <Route path="/about" element={<About />} />
+            <Route path="/insights" element={<Insights />} />
+            <Route path="/" element={<Home />} />
+          </>
+        ) : (
+          // If not logged in, redirect to login page
+          <>
+            <Route path="/login" element={<LoginPage onLoginSuccess={handleLoginSuccess} />} />
+            <Route path="*" element={<Navigate replace to="/login" />} />
+          </>
+        )}
       </Routes>
     </Router>
   );

src/LoginPage.js

+// LoginPage.js
+import React, { useState } from 'react';
+import { useNavigate } from 'react-router-dom';
+
+function LoginPage({ onLoginSuccess }) {
+  const [username, setUsername] = useState('');
+  const [password, setPassword] = useState('');
+  const navigate = useNavigate();
+
+  const handleLogin = (event) => {
+    event.preventDefault();
+    // Check for teacher or student login
+    if ((username === 'teacher' && password === '1234') ||
+        (username === 'student' && password === '1234')) {
+      // Call the handler with the username
+      onLoginSuccess(username);
+      // Navigate to the homepage or dashboard
+      navigate('/');
+    } else {
+      alert('Invalid credentials!');
+    }
+  };
+
+  return (
+    <div className="flex items-center justify-center h-screen bg-gray-200">
+      <div className="bg-white shadow-md rounded px-8 pt-6 pb-8 mb-4 flex flex-col">
+        <h1 className="mb-6 text-2xl font-bold text-center">O Level Maths Tutor</h1>
+        <form onSubmit={handleLogin} className="flex flex-col">
+          <label htmlFor="username" className="mb-2 text-gray-700">Username:</label>
+          <input
+            id="username"
+            type="text"
+            value={username}
+            onChange={(e) => setUsername(e.target.value)}
+            required
+            className="mb-4 p-2 border border-gray-300 rounded shadow"
+          />
+          <label htmlFor="password" className="mb-2 text-gray-700">Password:</label>
+          <input
+            id="password"
+            type="password"
+            value={password}
+            onChange={(e) => setPassword(e.target.value)}
+            required
+            className="mb-4 p-2 border border-gray-300 rounded shadow"
+          />
+          <button type="submit" className="bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded transition duration-200 ease-in-out">
+            Login
+          </button>
+        </form>
+      </div>
+    </div>
+  );
+}
+
+export default LoginPage;