export const BAIDU_SITE_VERIFICATION_CODE = 'codeva-32NHQfJ8qL';

export const BAIDU_SITE_VERIFICATION_META =
  `<meta name="baidu-site-verification" content="${BAIDU_SITE_VERIFICATION_CODE}" />`;

export function injectBaiduSiteVerification(html) {
  const source = String(html ?? '');
  const tag = BAIDU_SITE_VERIFICATION_META;
  if (/baidu-site-verification/i.test(source)) {
    return source.replace(
      /<meta[^>]+name=["']baidu-site-verification["'][^>]*>/i,
      tag,
    );
  }
  if (/<head[^>]*>/i.test(source)) {
    return source.replace(/<head([^>]*)>/i, `<head$1>\n  ${tag}`);
  }
  return `${tag}\n${source}`;
}