import type { Discussion } from './gitlab.js';
import type { Fingerprints, ReviewComment, Side } from './types.js';
/**
 * Pattern source for the hidden fingerprint marker, capturing the hash group.
 * Shared with the parser and prior-thread detection so the marker format is
 * defined in one place; each call site builds its own RegExp with the flags it
 * needs (the capture group is harmless when only stripping or testing). This is
 * a stable wire contract — see CLAUDE.md before changing it.
 *
 * Reads match BOTH the current `code-review:` prefix and the legacy
 * `gitlab-review:` prefix so findings posted under the old product identity are
 * still recognised and deduplicated after the rename. Writes emit the current
 * prefix (see {@link appendFingerprintMarkers}).
 */
export declare const FINGERPRINT_MARKER_PATTERN: string;
export declare function sha256(input: string): string;
export declare function normalizeBody(body: string): string;
export declare function extractDiffHunkContext(diff: string, file: string, line: number, side: Side): string;
export declare function fingerprints(comment: ReviewComment, hunkContext: string): Fingerprints;
export declare function appendFingerprintMarkers(body: string, fp: Fingerprints): string;
export declare function extractExistingFingerprints(discussions: Discussion[]): Set<string>;
//# sourceMappingURL=fingerprints.d.ts.map