<?php
header('Content-Type: application/xml; charset=utf-8');
$currentHost = $_SERVER['HTTP_HOST'] ?? '';
$currentHost = preg_replace('/[^A-Za-z0-9.\-:]/', '', $currentHost);
$scheme = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'http';
$baseUrl = $currentHost ? $scheme . '://' . $currentHost : '';
$paths = ['/', '/film/', '/community/', '/ai-lab/', '/culture/', '/creator/', '/contact/', '/selected-video/', '/sweet-community/', '/creation-center/', '/ai-toolbox/', '/emotion-space/'];
$today = date('Y-m-d');
echo '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
echo '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">' . "\n";
foreach ($paths as $path) {
  $loc = $baseUrl . $path;
  echo '  <url><loc>' . htmlspecialchars($loc, ENT_XML1, 'UTF-8') . '</loc><lastmod>' . $today . '</lastmod><changefreq>daily</changefreq><priority>' . ($path === '/' ? '1.0' : '0.8') . '</priority></url>' . "\n";
}
echo '</urlset>' . "\n";
?>
