import { FlowMeta, FlowMetaParam, FlowMetaType } from '../types';
import { NodeProps } from './AutoFlow';
export declare enum OpearteTypeEnum {
    ADD = "add",
    REMOVE = "remove",
    UPDATE = "update"
}
export declare enum ConnectorKeyEnum {
    CONNECTOR = "connector",
    DEFAULT_CONNECTOR = "defaultConnector",
    NEXT_VALUE_CONNECTOR = "nextValueConnector"
}
export interface HistoryItem {
    opearteId?: string;
    opearteType?: OpearteTypeEnum;
    useConnectorKey?: ConnectorKeyEnum;
    opearteRule?: {
        id: string;
        connector: string;
    };
    type?: FlowMetaType;
    data?: FlowMetaParam;
    flow: FlowMeta;
    flowNodes: NodeProps[];
    timestamp?: number;
}
export interface IHistoryProps {
    onRedo(item: HistoryItem): void;
    onUndo(item: HistoryItem): void;
}
export declare class History {
    context?: HistoryItem;
    props?: IHistoryProps;
    current: number;
    history: HistoryItem[];
    updateTimer: null;
    maxSize: number;
    constructor(context?: HistoryItem, props?: IHistoryProps);
    makeObservable(): void;
    list(): HistoryItem[];
    push(context: HistoryItem): void;
    get allowUndo(): boolean;
    get allowRedo(): boolean;
    redo(): void;
    undo(): void;
    goTo(index: number): void;
    clear(): void;
}