// Editorial direction/category associations, not automatic operation/price matches.
// Keep existing legacy slugs; a link is shown only while its destination is public.
export const DIRECTION_PRICE_SECTIONS = {
  'detskaya-klinika': 'detskiy-price',
  ginekologiya: 'gyne-price',
  oko: 'oftalmologiya-price',
  estetic: 'plasticheskaya_hirurgiya',
  osteo: 'lech_bol',
  proktologiya: 'proktologiya-price',
  urologiya: 'urologiya-price',
  khirurgiya: 'hirurgiya-price',
};

function flatten(tree) { return (tree || []).flatMap((s) => [s, ...flatten(s.children)]); }
export function servicePriceSection(path, prices) {
  const slug = DIRECTION_PRICE_SECTIONS[path.split('/')[0]];
  return slug ? flatten(prices).find((s) => s.slug === slug && s.items?.length > 0) : null;
}
export function priceDirection(slug, services) {
  const path = Object.keys(DIRECTION_PRICE_SECTIONS).find((key) => DIRECTION_PRICE_SECTIONS[key] === slug);
  return path ? (services || []).find((s) => s.path === path) : null;
}