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// deno-lint-ignore-file no-control-regeximport type { CookieInit } from 'https://ghuc.cc/qwtel/cookie-store-interface/index.d.ts';
export const attrsToSetCookie = (attrs: string[][]) => attrs.map(att => att.join('=')).join('; ');
/** * RegExp to match field-content in RFC 7230 sec 3.2 * * field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ] * field-vchar   = VCHAR / obs-text * obs-text      = %x80-FF */const RE_FIELD_CONTENT = /^[\u0009\u0020-\u007e\u0080-\u00ff]+$/;
type Attr = [string] | [string, string];type Attrs = [[string, string], ...Attr[]];
/** * Implements <https://wicg.github.io/cookie-store/#set-a-cookie> * with some additional behaviors taken from Chrome's implementation. */export function setCookie(  options: string | CookieInit,  value?: string,  origin?: URL,  encode = (x?: string) => x?.toString() ?? '',): [Attrs, Date | null] | null {  const [name, val] = (typeof options === 'string'    ? [options, value]    : [options.name, options.value]).map(encode)
  const opts = typeof options === 'string' ? <CookieInit>{} : options;
  if (name == null || val == null)    throw TypeError("required value(s) missing");  if (!name.length && val.includes('='))    throw TypeError("Cookie value cannot contain '=' if the name is empty");  if (!name.length && !val.length)    throw TypeError("Cookie name and value both cannot be empty");
  // Unspecified, emulating Chrome's current behavior   if (!RE_FIELD_CONTENT.test(name + val) || name.includes('=') || val.includes(';'))    return null;
  if (val.includes(', ')) {    throw TypeError("The cookie value must not contain sequence: ', '.");  }
  const attrs: Attrs = [[name, val]];
  const { domain, path, sameSite } = opts;
  if (domain) {    // Unspecified, emulating Chrome's current behavior     if (!RE_FIELD_CONTENT.test(domain) || domain.includes(';'))      return null;
    if (domain.startsWith('.'))      throw TypeError('Cookie domain cannot start with "."');
    const host = origin?.host;    if (host && domain !== host && !domain.endsWith(`.${host}`))      throw TypeError('Cookie domain must match current host');
    attrs.push(['Domain', domain]);  }
  let expires: Date | null = null;  if (opts.expires) {    expires = opts.expires instanceof Date      ? opts.expires      : new Date(opts.expires);    attrs.push(['Expires', expires.toUTCString()]);  }
  if (path) {    if (!path.toString().startsWith('/'))      throw TypeError('Cookie path must start with "/"');
    // Unspecified, emulating Chrome's current behavior     if (!RE_FIELD_CONTENT.test(path) || path.includes(';'))      return null;
    attrs.push(['Path', path]);  }
  // Always secure, except for localhost  if (origin && origin.hostname !== 'localhost')    attrs.push(['Secure']);
  if (opts.httpOnly)    attrs.push(['HttpOnly']);
  switch (sameSite) {    case undefined: break;    case 'none': attrs.push(['SameSite', 'None']); break;    case 'lax': attrs.push(['SameSite', 'Lax']); break;    case 'strict': attrs.push(['SameSite', 'Strict']); break;    default: throw TypeError(`The provided value '${sameSite}' is not a valid enum value of type CookieSameSite.`);  }
  return [attrs, expires]}
/**  * A not-so-strict parser for cookie headers. * - Allows pretty much everything in the value, including `=`  * - Trims keys and values * - Ignores when both name and value are empty (but either empty allowed) *  * For more on the state of allowed cookie characters,  * see <https://stackoverflow.com/a/1969339/870615>. */export function parseCookieHeader(cookie?: string | null) {  return new Map(cookie?.split(/;\s+/)    .map(x => x.split('='))    .map(([n, ...vs]) => <const>[n.trim(), vs.join('=').trim()])    .filter(([n, v]) => !(n === '' && v === ''))  );}