<?php
header('Content-Type: application/xml; charset=utf-8');
$host = $_SERVER['HTTP_HOST'] ?? $_SERVER['SERVER_NAME'] ?? '';
$host = preg_replace('/[^A-Za-z0-9.\-:]/', '', $host);
$https = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') || (($_SERVER['HTTP_X_FORWARDED_PROTO'] ?? '') === 'https');
$scheme = $https ? 'https' : 'http';
$base = $scheme . '://' . $host;
$today = date('Y-m-d');
$paths = ['/', '/product-detail/', '/idea-studio/', '/solution-guide/', '/trend-report/', '/community/', '/api/home-modules/', '/api/explore/', '/api/cases/', '/api/faq/', '/api/contact/', '/api/reviews/'];
echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
$xmlns = 'http://' . 'www.' . 'sitemaps' . '.org/schemas/sitemap/0.9';
echo "<urlset xmlns=\"" . $xmlns . "\">\n";
foreach ($paths as $path) {
  echo "  <url>\n";
  echo "    <loc>" . htmlspecialchars($base . $path, ENT_XML1, 'UTF-8') . "</loc>\n";
  echo "    <lastmod>" . $today . "</lastmod>\n";
  echo "    <changefreq>weekly</changefreq>\n";
  echo "    <priority>" . ($path === '/' ? '1.0' : '0.8') . "</priority>\n";
  echo "  </url>\n";
}
echo "</urlset>\n";
?>
