/*!
 * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
 * Licensed under the MIT License.
 */
import type { LocalReferencePosition, MergeTreeDeltaRevertible, PropertySet } from "@fluidframework/merge-tree/internal";
import type { SequenceInterval } from "./intervals/index.js";
import { IntervalOpType } from "./intervals/index.js";
import type { SequenceDeltaEvent } from "./sequenceDeltaEvent.js";
import type { ISharedString } from "./sharedString.js";
/**
 * Data for undoing edits on SharedStrings and Intervals.
 * @legacy @beta
 */
export type SharedStringRevertible = MergeTreeDeltaRevertible | IntervalRevertible;
/**
 * Data for undoing edits affecting Intervals.
 * @legacy @beta
 */
export type IntervalRevertible = {
    event: typeof IntervalOpType.CHANGE;
    interval: SequenceInterval;
    start: LocalReferencePosition;
    end: LocalReferencePosition;
} | {
    event: typeof IntervalOpType.ADD;
    interval: SequenceInterval;
} | {
    event: typeof IntervalOpType.DELETE;
    interval: SequenceInterval;
    start: LocalReferencePosition;
    end: LocalReferencePosition;
} | {
    event: typeof IntervalOpType.PROPERTY_CHANGED;
    interval: SequenceInterval;
    propertyDeltas: PropertySet;
} | {
    event: typeof IntervalOpType.POSITION_REMOVE;
    intervals: {
        intervalId: string;
        label: string;
        startOffset?: number;
        endOffset?: number;
    }[];
    revertibleRefs: {
        revertible: IntervalRevertible;
        offset: number;
        isStart: boolean;
    }[];
    mergeTreeRevertible: MergeTreeDeltaRevertible;
};
/**
 * Create revertibles for adding an interval
 * @legacy @beta
 */
export declare function appendAddIntervalToRevertibles(interval: SequenceInterval, revertibles: SharedStringRevertible[]): SharedStringRevertible[];
/**
 * Create revertibles for deleting an interval
 * @legacy @beta
 */
export declare function appendDeleteIntervalToRevertibles(string: ISharedString, interval: SequenceInterval, revertibles: SharedStringRevertible[]): SharedStringRevertible[];
/**
 * Create revertibles for moving endpoints of an interval
 * @legacy @beta
 */
export declare function appendChangeIntervalToRevertibles(string: ISharedString, newInterval: SequenceInterval, previousInterval: SequenceInterval, revertibles: SharedStringRevertible[]): SharedStringRevertible[];
/**
 * Create revertibles for changing properties of an interval
 * @legacy @beta
 */
export declare function appendIntervalPropertyChangedToRevertibles(interval: SequenceInterval, deltas: PropertySet, revertibles: SharedStringRevertible[]): SharedStringRevertible[];
/**
 * Create revertibles for SharedStringDeltas, handling indirectly modified intervals
 * (e.g. reverting remove of a range that contains an interval will move the interval back)
 * @legacy @beta
 */
export declare function appendSharedStringDeltaToRevertibles(string: ISharedString, delta: SequenceDeltaEvent, revertibles: SharedStringRevertible[]): void;
/**
 * Clean up resources held by revertibles that are no longer needed.
 * @legacy @beta
 */
export declare function discardSharedStringRevertibles(sharedString: ISharedString, revertibles: SharedStringRevertible[]): void;
/**
 * Invoke revertibles to reverse prior edits
 * @legacy @beta
 */
export declare function revertSharedStringRevertibles(sharedString: ISharedString, revertibles: SharedStringRevertible[]): void;
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