import { NavigationItem } from "@lumeweb/portal-framework-core";

//#region src/hooks/useBreadcrumbs.d.ts
/**
 * Build a breadcrumb trail from the current path by walking the `parentId`
 * chain from the matching item back to the root.
 *
 * The returned array is ordered root-first (ancestors before descendants):
 *   [Root, ..., Parent, Current]
 *
 * Safety:
 * - If no item matches `currentPath`, returns an empty array.
 * - If `parentId` references a non-existent parent, the walk stops at the
 *   last found item.
 * - Circular `parentId` references are detected via a visited-set and broken
 *   without infinite looping.
 *
 * @param items       - Flat list of NavigationItem (with optional `parentId` chains).
 * @param currentPath - The route path to derive breadcrumbs for.
 * @returns Ordered breadcrumb array (root → current).
 */
declare function buildBreadcrumbs(items: NavigationItem[], currentPath: string): NavigationItem[];
/**
 * Hook that derives breadcrumb data from the navigation tree by walking the
 * `parentId` chain from the current path to the root.
 *
 * Memoized via `useMemo` — returns a stable reference when `items` and
 * `currentPath` are unchanged across re-renders.
 *
 * @param items       - Flat list of NavigationItem.
 * @param currentPath - The route path to derive breadcrumbs for.
 * @returns Ordered breadcrumb array (root → current), or empty array if
 *          no item matches the path.
 */
declare function useBreadcrumbs(items: NavigationItem[], currentPath: string): NavigationItem[];
//#endregion
export { buildBreadcrumbs, useBreadcrumbs };
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