import type { RailDeckDirectIntegrationClient as Client } from '@raildeck/frontend-sdk/direct-integration';

/**
 * Read saved comparisons and then the pair explicitly chosen for review.
 * @param client - Configured client; the caller owns current authority.
 * @param accountId - Authorised account for this workflow.
 * @param locomotiveId - Explicitly selected locomotive.
 * @param pairId - Saved comparison chosen by the operator.
 * @param signal - Caller-owned cancellation signal.
 * @returns Saved comparison evidence, without a speed command or physical verification.
 */
export async function openSelectedComparison(
  client: Client,
  accountId: string,
  locomotiveId: string,
  pairId: string,
  signal: AbortSignal,
) {
  const options = { signal, timeoutMs: 15_000 };
  const pairs = await client.locomotiveMatching.list(accountId, locomotiveId, options);
  const selected = await client.locomotiveMatching.get(accountId, locomotiveId, pairId, options);
  return { pairs, selected };
}