import { ay as MenuItem } from './index-D7ZH0AzE.cjs';

/**
 * order3000 lunch-menu availability — the per-item rotation logic, provided by
 * the SDK so every consumer (e.g. thamarai's `/mittagsmenü` page) filters a menu
 * identically without re-implementing the null / `[]` / `[values]` semantics.
 *
 * Each menu item carries two orthogonal, optional rotation dimensions:
 *   - `availableWeeks` — ISO calendar weeks (KW 1–53)
 *   - `availableDays`  — weekdays
 * For each: `null` = no restriction (always), `[]` = never served, `[values]` =
 * only those. An item shows on a given weekday of a given calendar week only
 * when BOTH dimensions pass.
 *
 * Pure and dependency-free (no dates, no `window`) — safe to import in SSR or
 * the browser. Calendar math (which ISO week "today" is, the dates of a week)
 * is the caller's job via `@kolaveri/utils` / `date-fns`.
 */

/** A weekday value as carried by a menu item's `availableDays`. */
type MenuWeekday = NonNullable<MenuItem['availableDays']>[number];
/** Mon→Sun — the canonical order lunch-menu weekday groups are emitted in. */
declare const MENU_WEEKDAY_ORDER: readonly MenuWeekday[];
/**
 * Whether an item is on the rotation for the given ISO calendar week.
 * `null` weeks = every week; `[]` = never; otherwise only the listed weeks.
 */
declare const isMenuItemAvailableInWeek: (item: Pick<MenuItem, "availableWeeks">, isoWeek: number) => boolean;
/**
 * Whether an item is on the rotation for the given weekday.
 * `null` days = every weekday; `[]` = never; otherwise only the listed days.
 */
declare const isMenuItemAvailableOnWeekday: (item: Pick<MenuItem, "availableDays">, weekday: MenuWeekday) => boolean;
/** One weekday's lunch offering within a calendar week. */
interface LunchMenuWeekdayGroup {
    weekday: MenuWeekday;
    items: MenuItem[];
}
/**
 * Group a menu's items by weekday for one ISO calendar week — the data model
 * behind a calendar-week lunch-menu page.
 *
 * Keeps only active items available in `isoWeek`, buckets them into the weekday
 * groups they're available on (Mon→Sun), and DROPS weekdays with no items.
 * Item order within each group is preserved from the input (order3000 returns
 * `menu.items` pre-sorted by `sortIndex`), so callers should pass them as-is.
 */
declare const groupLunchMenuByWeek: (items: MenuItem[], isoWeek: number) => LunchMenuWeekdayGroup[];

export { MENU_WEEKDAY_ORDER, groupLunchMenuByWeek, isMenuItemAvailableInWeek, isMenuItemAvailableOnWeekday };
export type { LunchMenuWeekdayGroup, MenuWeekday };