import { type Dispatch, type SetStateAction } from 'react';
/**
 * Capitalize a short UI label.
 */
export declare const capitalize: (value: string) => string;
export declare const formatContentTitle: (parts: string[]) => string;
export declare const hasJsonValue: (value: unknown) => boolean;
/**
 * Truncate a string to fit a column, appending an ellipsis when clipped.
 */
export declare const truncate: (str: string, max: number) => string;
/**
 * Format an ISO timestamp into the short `MMM d HH:mm` form used in panel
 * row tables (e.g. `Apr 28 18:56`). Returns `-` when the input is missing
 * or unparseable.
 */
export declare const formatStartedShort: (iso: string | undefined) => string;
/**
 * Compute the index of the first visible row for a windowed list. Keeps
 * the selected row centred when possible and clamps so the window never
 * runs off the end of the array.
 */
export declare const computeWindowStart: (selectedIndex: number, total: number, visibleRows: number) => number;
export declare const cycleValue: <T>(values: readonly T[], current: T, direction: 1 | -1) => T;
export declare const clampIndex: (index: number, count: number) => number;
export declare const useListSelection: (count: number, initialIndex?: number | (() => number)) => {
    selectedIndex: number;
    setSelectedIndex: Dispatch<SetStateAction<number>>;
    selectPrevious: () => void;
    selectNext: () => void;
};