/**
 * @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
 */
/**
 * @module collaboration-core/documentcompare
 */
import { ContextPlugin, Editor } from '@ckeditor/ckeditor5-core';
import { ModelPosition, type ModelDocumentFragment, type ModelElement, type Operation } from '@ckeditor/ckeditor5-engine';
export declare const DATA_ID_MODEL_ATTRIBUTE = "$elementId";
export declare const DATA_ID_VIEW_ATTRIBUTE = "data-id";
/**
 * The `DocumentCompare` plugin provides utilities to compare two documents or documents fragments, and provide set of operations
 * which need to be executed to transform one document into the other.
 */
export declare class DocumentCompare extends ContextPlugin {
    /**
     * @inheritDoc
     */
    static get pluginName(): "DocumentCompare";
    /**
     * @inheritDoc
     */
    static get isOfficialPlugin(): true;
    /**
     * @inheritDoc
     */
    static get isPremiumPlugin(): true;
    init(): Promise<void>;
    get editor(): Editor;
    getDiff(dataBefore: string, dataAfter: string, options?: DocumentCompareOptions): DocumentDiff;
    /**
     * Returns `true` if given `operation` is an operation that marks a content to be removed. This kind of operations can be
     * returned by {@link module:collaboration-core/documentcompare~DocumentCompare#getOperations} if `markedDeletions` mode is enabled.
     *
     * @param operation
     */
    isMarkedRemoveOperation(operation: Operation): boolean;
}
export interface DocumentCompareOptions {
    anchor: string | ModelPosition;
    markDeletions: boolean;
}
export declare class DocumentDiff {
    constructor(before: ModelDocumentFragment, after: ModelDocumentFragment, editor: Editor, options: {
        markDeletions: boolean;
        anchor: ModelPosition;
    });
    getOperationsData(): Array<OperationData>;
    getOperations(): Array<Operation>;
}
export interface InsertOperationData {
    type: 'insert';
    path: Path;
    tokens: Array<ModelToken>;
}
export interface RemoveOperationData {
    type: 'remove';
    path: Path;
    howMany: number;
}
export interface SplitOperationData {
    type: 'split';
    path: Path;
}
export interface MergeOperationData {
    type: 'merge';
    path: Path;
}
export interface RenameOperationData {
    type: 'rename';
    path: Path;
    oldName: string;
    newName: string;
}
export interface AttributeOperationData {
    type: 'attribute';
    path: Path;
    howMany: number;
    key: string;
    oldValue: string;
    newValue: string;
}
export interface MarkerOperationData {
    type: 'marker';
    name: string;
    range: null | {
        start: Path;
        end: Path;
    };
}
export interface UnwrapOperationData {
    type: 'unwrap';
    path: Path;
    howMany: number;
}
export interface WrapOperationData {
    type: 'wrap';
    token: ModelElementToken;
    range: {
        start: Path;
        end: Path;
    };
}
export interface MarkedRemoveData {
    type: 'markedRemove';
    range: {
        start: Path;
        end: Path;
    };
}
export type OperationData = InsertOperationData | RemoveOperationData | SplitOperationData | MergeOperationData | RenameOperationData | AttributeOperationData | MarkerOperationData | UnwrapOperationData | WrapOperationData | MarkedRemoveData;
export type ModelToken = ModelElementToken | ModelTextToken;
export interface ModelElementToken {
    type: 'element';
    element: ModelElement;
    elementId: string;
    /**
     * Elements category.
     *
     * Describes how the element behaves and how it can change. It is used when comparing lists of model tokens to create a better diff.
     *
     * * `block` - elements like paragraphs, lists, or headings. Can be renamed. Can be created by splitting. Can be removed by merging.
     * Its contents can be "moved around" by splitting or merging.
     *
     * * `container` - elements like blockquote. Cannot be renamed. Can be created by wrapping. Can be removed by unwrapping. Can be
     * "resized" by having other elements be moved into or out of them.
     *
     * * `solid` - limit-like elements like table or image. Cannot be renamed, split or merged. Can be added by insertion and removed by
     * deletion. If added or removed, all their content also should be treated as added or removed.
     */
    category: 'block' | 'container' | 'solid';
    isStart: boolean;
    limitId: string;
}
export interface ModelTextToken {
    type: 'text';
    data: string;
    parent: ModelElement | ModelDocumentFragment;
    offset: number;
    limitId: string;
}
export type Path = Array<number>;