import type { DateHint } from './intent-router.js';
export type TimeRange = 'day' | 'week' | 'month' | 'year';
export declare function resolveTimeRange(range: TimeRange | undefined, now?: Date): DateHint | undefined;
/**
 * Robust per-result window predicate: is a DATED result provably outside the
 * requested [fromDate, toDate] window?
 *
 * Returns true ONLY when `publishedDate` parses to a real calendar time that
 * falls before `fromDate` (day start) or after `toDate` (day end). Undated or
 * unparseable dates return false (kept — conservative, mirrors the pre-existing
 * "no parseable date -> survive" behaviour). Unparseable bounds are ignored so a
 * malformed filter never windows results out.
 *
 * Keys on parsed calendar time, NOT a string compare: the old
 * `published_date >= fromDate` form leaked any dated result whose format was not
 * lexically ISO-ordered (e.g. "Jan 15, 2026", "2026/01/15") — those compared
 * greater than "2026-06-27" and survived a week window despite being months old.
 */
export declare function isDatedOutOfWindow(publishedDate: string | undefined, fromDate: string | undefined, toDate: string | undefined): boolean;
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