import type { WorkDocumentChange, WorkDocumentChangeIdentity } from './work-document-changes';
import type { WorkDocumentChangeKind } from './work-types';
export type DocumentComparisonMode = 'compare' | 'combine';
export interface DocumentComparisonSummary {
    insertions: number;
    deletions: number;
    formatting: number;
    paragraphFormatting: number;
    /** Number of paired text moves inferred by Compare (when non-zero). */
    moves?: number;
}
export interface DocumentComparisonOptions {
    mode: DocumentComparisonMode;
    author: string;
    date: string;
    sourceName: string;
}
export interface ComparisonIdentityFactory {
    create(kind: WorkDocumentChangeKind, before?: string): WorkDocumentChangeIdentity;
    paragraphIdentity(channel: string): {
        paragraphId: string;
        textId: string;
    };
    summary: DocumentComparisonSummary;
}
export declare function createComparisonIdentityFactory(currentSignature: string, revisedSignature: string, options: DocumentComparisonOptions): ComparisonIdentityFactory;
export declare function summarizeComparisonChanges(changes: readonly WorkDocumentChange[]): DocumentComparisonSummary;
export declare function emptyComparisonSummary(): DocumentComparisonSummary;