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Update index.php #80

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160 changes: 159 additions & 1 deletion index.php
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Original file line number Diff line number Diff line change
@@ -1,3 +1,161 @@
<?php
session_start();
include 'db.php';

echo "Hello World!";
// Redirect to dashboard if already logged in
if (isset($_SESSION['student_id'])) {
header('Location: index.php?dashboard=1');
exit();
}

// Handle Registration
if (isset($_POST['register'])) {
$first_name = $_POST['first_name'];
$last_name = $_POST['last_name'];
$email = $_POST['email'];
$password = password_hash($_POST['password'], PASSWORD_BCRYPT);

$sql = "INSERT INTO students (first_name, last_name, email, password)
VALUES ('$first_name', '$last_name', '$email', '$password')";

if ($conn->query($sql) === TRUE) {
echo "Registration successful! You can now <a href='index.php'>log in</a>.";
} else {
echo "Error: " . $conn->error;
}
}

// Handle Login
if (isset($_POST['login'])) {
$email = $_POST['email'];
$password = $_POST['password'];

$sql = "SELECT * FROM students WHERE email = '$email'";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
$student = $result->fetch_assoc();
if (password_verify($password, $student['password'])) {
$_SESSION['student_id'] = $student['student_id'];
header('Location: index.php?dashboard=1');
} else {
echo "Invalid credentials.";
}
} else {
echo "No user found.";
}
}

// Handle Logout
if (isset($_GET['logout'])) {
session_unset();
session_destroy();
header('Location: index.php');
exit();
}

// Handle Attendance Marking (Admin side) - For simplicity, we mark attendance in the same file
if (isset($_POST['mark_attendance'])) {
$attendance_date = $_POST['attendance_date'];
$schedule_id = $_POST['schedule_id'];
$student_id = $_POST['student_id'];
$status = $_POST['status'];

$sql = "INSERT INTO attendance (student_id, schedule_id, attendance_date, status)
VALUES ('$student_id', '$schedule_id', '$attendance_date', '$status')";

if ($conn->query($sql) === TRUE) {
echo "Attendance marked successfully!";
} else {
echo "Error: " . $conn->error;
}
}

?>

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Student Portal</title>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<div class="container">

<!-- Registration Form -->
<?php if (!isset($_GET['login']) && !isset($_GET['dashboard'])): ?>
<h2>Student Registration</h2>
<form method="post">
First Name: <input type="text" name="first_name" required><br>
Last Name: <input type="text" name="last_name" required><br>
Email: <input type="email" name="email" required><br>
Password: <input type="password" name="password" required><br>
<input type="submit" name="register" value="Register">
</form>

<p>Already have an account? <a href="?login=1">Login</a></p>

<?php endif; ?>

<!-- Login Form -->
<?php if (isset($_GET['login'])): ?>
<h2>Student Login</h2>
<form method="post">
Email: <input type="email" name="email" required><br>
Password: <input type="password" name="password" required><br>
<input type="submit" name="login" value="Login">
</form>

<p>Don't have an account? <a href="?register=1">Register</a></p>

<?php endif; ?>

<!-- Dashboard - Display courses and attendance -->
<?php if (isset($_GET['dashboard']) && isset($_SESSION['student_id'])): ?>
<h2>Welcome to the Student Dashboard</h2>
<?php
// Fetch courses and attendance details
$student_id = $_SESSION['student_id'];
$sql = "SELECT c.course_name, c.course_code, s.schedule_id, s.day_of_week, s.start_time, s.end_time
FROM courses c
JOIN schedules s ON c.course_id = s.course_id
JOIN attendance a ON s.schedule_id = a.schedule_id
WHERE a.student_id = '$student_id'";
$result = $conn->query($sql);

echo "<h3>Your Enrolled Courses</h3>";
while ($row = $result->fetch_assoc()) {
echo "Course: " . $row['course_name'] . " (" . $row['course_code'] . ")<br>";
echo "Day: " . $row['day_of_week'] . ", Time: " . $row['start_time'] . " - " . $row['end_time'] . "<br>";

// Show attendance status
$attendance_sql = "SELECT status FROM attendance WHERE student_id = '$student_id' AND schedule_id = " . $row['schedule_id'];
$attendance_result = $conn->query($attendance_sql);
$attendance = $attendance_result->fetch_assoc();
echo "Attendance: " . $attendance['status'] . "<br><br>";
}
?>

<a href="?logout=1">Logout</a>

<!-- Admin Section for Marking Attendance -->
<h3>Mark Attendance (Admin)</h3>
<form method="post">
Student ID: <input type="text" name="student_id" required><br>
Schedule ID: <input type="text" name="schedule_id" required><br>
Date: <input type="date" name="attendance_date" required><br>
Status:
<select name="status">
<option value="Present">Present</option>
<option value="Absent">Absent</option>
</select><br>
<input type="submit" name="mark_attendance" value="Mark Attendance">
</form>

<?php endif; ?>

</div>
</body>
</html>