atomicintel/index.html at main · sofhasissues/atomicintel · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Attendance System</title>
    <link href="https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css" rel="stylesheet">
    <link href="styles.css" rel="stylesheet">
</head>
<body class="bg-gray-100 min-h-screen flex items-center justify-center">
    <div class="bg-white p-6 rounded-lg shadow-lg max-w-md w-full">
        <h1 class="text-2xl font-bold mb-4 text-center">Attendance Monitoring System</h1>
        <div id="login-form" class="space-y-4">
            <input type="text" id="username" placeholder="Username (e.g., stu123)" class="w-full p-2 border rounded">
            <input type="password" id="password" placeholder="Password" class="w-full p-2 border rounded">
            <button onclick="login()" class="w-full bg-indigo-500 text-white p-2 rounded hover:bg-indigo-600">Login</button>
        </div>
        <div id="attendance-form" class="space-y-4 hidden">
            <p id="user-info" class="text-sm text-gray-600"></p>
            <input type="text" id="userId" placeholder="User ID (e.g., STU123)" class="w-full p-2 border rounded" readonly>
            <select id="role" class="w-full p-2 border rounded" disabled>
                <option value="Student">Student</option>
                <option value="Teacher">Teacher</option>
            </select>
            <button onclick="markAttendance()" class="w-full bg-blue-500 text-white p-2 rounded hover:bg-blue-600">Mark Attendance</button>
            <button onclick="getReports()" class="w-full bg-green-500 text-white p-2 rounded hover:bg-green-600">View Reports</button>
            <button onclick="getGeofence()" class="w-full bg-purple-500 text-white p-2 rounded hover:bg-purple-600">View Geofence</button>
            <button onclick="logout()" class="w-full bg-red-500 text-white p-2 rounded hover:bg-red-600">Logout</button>
            <div id="status" class="text-sm text-gray-600"></div>
            <div id="reports" class="text-sm text-gray-800 max-h-64 overflow-y-auto"></div>
        </div>
    </div>

    <script>
        // Configure backend URL here
        const backendUrl = 'https://attendance-backend-wwxi.onrender.com/'; // Replace with your deployed backend URL, e.g., https://your-backend.com

        // IndexedDB setup
        let db;
        const dbRequest = indexedDB.open("AttendanceDB", 1);
        dbRequest.onupgradeneeded = (event) => {
            db = event.target.result;
            db.createObjectStore("records", { autoIncrement: true });
        };
        dbRequest.onsuccess = (event) => {
            db = event.target.result;
        };
        dbRequest.onerror = (event) => console.error("IndexedDB error:", event.target.error);

        function addToQueue(record) {
            const tx = db.transaction("records", "readwrite");
            tx.objectStore("records").add(record);
            tx.oncomplete = () => {
                console.log("Queued offline");
                document.getElementById("status").innerText = `Offline: Queued for sync. Will sync when connected to ${backendUrl}.`;
                document.getElementById("status").classList.add("text-yellow-500");
            };
            tx.onerror = () => console.error("Failed to queue record");
        }

        function getAllRecords() {
            return new Promise((resolve, reject) => {
                const tx = db.transaction("records", "readonly");
                const request = tx.objectStore("records").getAll();
                request.onsuccess = () => resolve(request.result);
                request.onerror = () => reject(request.error);
            });
        }

        function deleteRecord(key) {
            const tx = db.transaction("records", "readwrite");
            tx.objectStore("records").delete(key);
        }

        async function testBackend() {
            try {
                const response = await fetch(`${backendUrl}/calendar`, {
                    method: 'GET',
                    headers: { 'Authorization': `Bearer ${localStorage.getItem('jwt')}` },
                    timeout: 3000
                });
                return response.ok;
            } catch (e) {
                console.error("Backend connectivity test failed:", e);
                return false;
            }
        }

        async function login() {
            const username = document.getElementById("username").value;
            const password = document.getElementById("password").value;
            if (!username || !password) {
                document.getElementById("status").innerText = "Please enter username and password";
                document.getElementById("status").classList.add("text-red-500");
                return;
            }

            try {
                const response = await fetch(`${backendUrl}/login`, {
                    method: 'POST',
                    headers: { 'Content-Type': 'application/json' },
                    body: JSON.stringify({ username, password })
                });
                const result = await response.json();
                if (result.status === "success") {
                    localStorage.setItem('jwt', result.token);
                    document.getElementById("login-form").classList.add("hidden");
                    document.getElementById("attendance-form").classList.remove("hidden");
                    document.getElementById("userId").value = (result.role === "Student" ? "STU" : "TCH") + result.userId;
                    document.getElementById("role").value = result.role;
                    document.getElementById("user-info").innerText = `Logged in as ${result.name} (${result.role})`;
                    document.getElementById("status").innerText = "Login successful!";
                    document.getElementById("status").classList.add("text-green-500");
                } else {
                    document.getElementById("status").innerText = `Login failed: ${result.error}`;
                    document.getElementById("status").classList.add("text-red-500");
                }
            } catch (e) {
                document.getElementById("status").innerText = `Login error: ${e.message}. Ensure backend is running at ${backendUrl}.`;
                document.getElementById("status").classList.add("text-red-500");
            }
        }

        function logout() {
            localStorage.removeItem('jwt');
            document.getElementById("login-form").classList.remove("hidden");
            document.getElementById("attendance-form").classList.add("hidden");
            document.getElementById("status").innerText = "Logged out.";
            document.getElementById("status").classList.remove("text-red-500", "text-yellow-500", "text-green-500");
            document.getElementById("reports").innerHTML = '';
        }

        async function markAttendance() {
            const userId = document.getElementById("userId").value;
            const role = document.getElementById("role").value;
            if (!/^(STU|TCH)\d+$/.test(userId)) {
                document.getElementById("status").innerText = "Invalid User ID (e.g., STU123 or TCH123)";
                document.getElementById("status").classList.add("text-red-500");
                return;
            }

            document.getElementById("status").classList.remove("text-red-500", "text-yellow-500", "text-green-500");
            document.getElementById("status").innerText = "Fetching location...";

            navigator.geolocation.getCurrentPosition(async (pos) => {
                const { latitude, longitude } = pos.coords;
                const data = { userId: parseInt(userId.slice(3)), role, lat: latitude, lon: longitude };

                const isOnline = navigator.onLine && await testBackend();
                if (isOnline) {
                    try {
                        const response = await fetch(`${backendUrl}/mark-attendance`, {
                            method: 'POST',
                            headers: {
                                'Content-Type': 'application/json',
                                'Authorization': `Bearer ${localStorage.getItem('jwt')}`
                            },
                            body: JSON.stringify(data)
                        });
                        const result = await response.json();
                        document.getElementById("status").innerText = result.status === "success"
                            ? "Attendance marked successfully!"
                            : result.error === "User is outside campus boundaries"
                                ? `Error: You are outside campus boundaries. Ensure location is within configured geofence.`
                                : `Error: ${result.error}`;
                        document.getElementById("status").classList.toggle("text-green-500", result.status === "success");
                        document.getElementById("status").classList.toggle("text-red-500", result.status !== "success");
                    } catch (e) {
                        console.error("Mark attendance failed:", e);
                        document.getElementById("status").innerText = `Failed to connect to backend at ${backendUrl}: ${e.message}. Queued for sync.`;
                        document.getElementById("status").classList.add("text-yellow-500");
                        addToQueue(data);
                    }
                } else {
                    document.getElementById("status").innerText = `Offline or backend unreachable at ${backendUrl}. Queued for sync.`;
                    document.getElementById("status").classList.add("text-yellow-500");
                    addToQueue(data);
                }
            }, (err) => {
                document.getElementById("status").innerText = "Geolocation error: " + err.message;
                document.getElementById("status").classList.add("text-red-500");
            }, {
                enableHighAccuracy: true,
                timeout: 10000,
                maximumAge: 0
            });
        }

        async function getReports() {
            const reportsDiv = document.getElementById("reports");
            reportsDiv.innerHTML = '';
            try {
                const response = await fetch(`${backendUrl}/reports`, {
                    headers: { 'Authorization': `Bearer ${localStorage.getItem('jwt')}` },
                    timeout: 5000
                });
                if (!response.ok) {
                    throw new Error(`Server responded with status ${response.status}: ${response.statusText}`);
                }
                const data = await response.json();
                if (data.error) {
                    throw new Error(data.error);
                }
                if (data.length === 0) {
                    reportsDiv.innerText = "No attendance records found.";
                    return;
                }
                const ul = document.createElement("ul");
                ul.className = "space-y-2";
                data.forEach(record => {
                    const li = document.createElement("li");
                    li.className = "p-2 bg-gray-50 rounded";
                    li.innerText = `ID: ${record.userId}, Role: ${record.role}, Time: ${record.timestamp}, Lat: ${record.lat}, Lon: ${record.lon}`;
                    ul.appendChild(li);
                });
                reportsDiv.appendChild(ul);
                document.getElementById("status").innerText = "Reports loaded successfully!";
                document.getElementById("status").classList.add("text-green-500");
            } catch (e) {
                console.error("Fetch reports error:", e);
                reportsDiv.innerText = `Error fetching reports: ${e.message}. Ensure backend is running at ${backendUrl}/reports.`;
                reportsDiv.classList.add("text-red-500");
            }
        }

        async function getGeofence() {
            const reportsDiv = document.getElementById("reports");
            reportsDiv.innerHTML = '';
            try {
                const response = await fetch(`${backendUrl}/geofence`, {
                    headers: { 'Authorization': `Bearer ${localStorage.getItem('jwt')}` },
                    timeout: 5000
                });
                if (!response.ok) {
                    throw new Error(`Server responded with status ${response.status}: ${response.statusText}`);
                }
                const data = await response.json();
                if (data.error) {
                    throw new Error(data.error);
                }
                reportsDiv.innerText = `Geofence Boundaries:\nMin Latitude: ${data.minLat}\nMax Latitude: ${data.maxLat}\nMin Longitude: ${data.minLon}\nMax Longitude: ${data.maxLon}`;
                document.getElementById("status").innerText = "Geofence configuration loaded.";
                document.getElementById("status").classList.add("text-green-500");
            } catch (e) {
                console.error("Fetch geofence error:", e);
                reportsDiv.innerText = `Error fetching geofence configuration: ${e.message}. Ensure backend is running at ${backendUrl}/geofence.`;
                reportsDiv.classList.add("text-red-500");
            }
        }

        if ('serviceWorker' in navigator) {
            navigator.serviceWorker.register('/sw.js').then(() => console.log('SW registered')).catch(e => console.error('SW registration failed', e));
        }

        setInterval(async () => {
            if (navigator.onLine && await testBackend()) {
                const records = await getAllRecords();
                if (records.length > 0) {
                    try {
                        const response = await fetch(`${backendUrl}/sync`, {
                            method: 'POST',
                            headers: {
                                'Content-Type': 'application/json',
                                'Authorization': `Bearer ${localStorage.getItem('jwt')}`
                            },
                            body: JSON.stringify(records)
                        });
                        if (response.ok) {
                            records.forEach((rec, index) => deleteRecord(index + 1));
                            document.getElementById("status").innerText = "Offline records synced!";
                            document.getElementById("status").classList.add("text-green-500");
                        }
                    } catch (e) {
                        console.error("Sync failed", e);
                    }
                }
            }
        }, 30000);

        // Check if already logged in
        if (localStorage.getItem('jwt')) {
            testBackend().then(isOnline => {
                if (isOnline) {
                    document.getElementById("login-form").classList.add("hidden");
                    document.getElementById("attendance-form").classList.remove("hidden");
                    document.getElementById("status").innerText = "Restored session.";
                    document.getElementById("status").classList.add("text-green-500");
                } else {
                    localStorage.removeItem('jwt');
                }
            });
        }
    </script>
</body>
</html>