<?php
header('Content-Type: application/xml; charset=utf-8');
$https = $_SERVER['HTTPS'] ?? '';
$forwardedProto = $_SERVER['HTTP_X_FORWARDED_PROTO'] ?? '';
if ($https !== '' && $https !== 'off') {
    $scheme = 'https';
} elseif ($forwardedProto !== '') {
    $scheme = preg_replace('/[^a-z]/', '', strtolower(explode(',', $forwardedProto)[0]));
} else {
    $scheme = 'http';
}
$host = $_SERVER['HTTP_HOST'] ?? ($_SERVER['SERVER_NAME'] ?? '');
$host = preg_replace('/[^A-Za-z0-9\-\.:]/', '', $host);
$base = $host === '' ? '' : $scheme . '://' . $host;
$today = date('Y-m-d');
$paths = ['/', '/video/', '/product/', '/solutions/', '/cases/', '/news/', '/resources/', '/technology/', '/developers/', '/contact/'];
echo '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<?php foreach ($paths as $path): ?>
  <url>
    <loc><?php echo htmlspecialchars($base . $path, ENT_QUOTES, 'UTF-8'); ?></loc>
    <lastmod><?php echo $today; ?></lastmod>
    <changefreq><?php echo $path === '/' ? 'daily' : 'weekly'; ?></changefreq>
    <priority><?php echo $path === '/' ? '1.0' : '0.8'; ?></priority>
  </url>
<?php endforeach; ?>
</urlset>
