/** Pure capture guards; fixtures must never contain real cookies or notes. */
export function normalizeBubbleRef(value) {
  if (typeof value !== 'string') return value;
  if (!value.startsWith('LOOKUP__')) return value;
  return value.match(/[0-9]+x[0-9]+/)?.[0] || value;
}

export function assertSessionFresh(state, now = Date.now() / 1000) {
  if ((state.cookies || []).some(c => c.name.endsWith('.sig') &&
      c.expires > 0 && c.expires <= now)) {
    throw new Error('bubble_session_expired');
  }
}

export function mergeCapturedRecord(existing, source, id) {
  return { ...(existing || {}), ...source, _id: normalizeBubbleRef(id) };
}

export function selectTargetArticles(articles, rootId) {
  const root = articles[normalizeBubbleRef(rootId)];
  const spaceId = normalizeBubbleRef(root?.space_custom_space);
  if (!root || !spaceId) throw new Error('target_space_identity_missing');
  const selected = Object.values(articles).filter(a =>
    normalizeBubbleRef(a.space_custom_space) === spaceId);
  if (selected.length <= 1) throw new Error('target_protocols_not_captured');
  if (selected.some(a => !Object.hasOwn(a, 'content_text'))) {
    throw new Error('target_protocol_bodies_incomplete');
  }
  return [spaceId, selected];
}