import { FC, ReactNode, Context, RefObject } from 'react';
import { HeaderRowConfig } from '../types/scheduler-types';
import { CellData, HeaderRowGroup } from '../types/internal-interface';
/**
 * Value exposed by the SchedulerHeaderRowsContext.
 *
 * @private
 */
export interface SchedulerHeaderRowsType {
    /**
     * Last-level header cells — the header-side equivalent of resource-grouping.
     * Work-cell formation iterates this track instead of raw `renderDates`.
     */
    headerLastLevel: CellData[];
    /**
     * Year/Month/Week grouping metadata for the active header rows, keyed by option.
     * share the same precomputed groups without re-invoking the hook logic.
     */
    allHeaderGroups: {
        Year?: HeaderRowGroup[];
        Month?: HeaderRowGroup[];
        Week?: HeaderRowGroup[];
    } | null;
    /** Holds actual header rows. */
    actualHeaderRows: HeaderRowConfig[];
    /**
     * Mutable ref the timeline view writes its measured content height to, so other
     * views (e.g. month) can read the timeline content height without re-measuring.
     */
    schedulerContentHeight: RefObject<number | null>;
}
/** @private */
declare const SchedulerHeaderRowsContext: Context<SchedulerHeaderRowsType | null>;
/**
 * SchedulerHeaderRowsProvider — publishes the timeline header last-row
 * `CellData[]` (finest track for work cells) plus Year/Month/Week groups.
 *
 * @param {ReactNode} props.children - Child components.
 * @returns {JSX.Element} React component that provides the header-track context.
 *
 * @private
 */
export declare const SchedulerHeaderRowsProvider: FC<{
    children: ReactNode;
}>;
/**
 * Hook to safely access the scheduler header-track context.
 *
 * @returns {SchedulerHeaderRowsType | null} Context value or null when
 * used outside a provider.
 *
 * @private
 */
export declare function useSchedulerHeaderRowsContext(): SchedulerHeaderRowsType | null;
export default SchedulerHeaderRowsContext;