import { EdgeData, NodeData } from '../types';
export interface UndoRedoEvent {
    /**
     * Updated node datas.
     */
    nodes?: NodeData[];
    /**
     * Updated edge datas.
     */
    edges?: EdgeData[];
    /**
     * Type of change.
     */
    type: 'undo' | 'redo' | 'clear';
    /**
     * Whether you can undo now.
     */
    canUndo: boolean;
    /**
     * Whether you can redo now.
     */
    canRedo: boolean;
}
export interface UndoProps {
    /**
     * Current node datas.
     */
    nodes: NodeData[];
    /**
     * Current edge datas.
     */
    edges: EdgeData[];
    /**
     * Max history count.
     *
     * @default 20
     */
    maxHistory?: number;
    /**
     * Disabled or not.
     *
     * @default false
     */
    disabled?: boolean;
    /**
     * On undo/redo event handler.
     */
    onUndoRedo: (state: UndoRedoEvent) => void;
}
export interface UndoResult {
    /**
     * Can undo or not.
     */
    canUndo: boolean;
    /**
     * Can redo or not.
     */
    canRedo: boolean;
    /**
     * Count of existing changes.
     */
    count: () => number;
    /**
     * Clear state.
     */
    clear: (nodes: NodeData[], edges: EdgeData[]) => void;
    /**
     * Get history of state.
     */
    history: () => {
        nodes: NodeData[];
        edges: EdgeData[];
    }[];
    /**
     * Perform an redo.
     */
    redo: () => void;
    /**
     * Perform a undo.
     */
    undo: () => void;
}
export declare const useUndo: ({ nodes, edges, disabled, maxHistory, onUndoRedo }: UndoProps) => UndoResult;