Intlayer

import crypto from 'node:crypto'; import type { FingerprintedBlock, NormalizedBlock } from './types'; const computeStringDigest = (text: string): string => crypto.createHash('sha256').update(text).digest('hex'); export const fingerprintBlock = ( block: NormalizedBlock, previousBlock: NormalizedBlock | null, nextBlock: NormalizedBlock | null ): FingerprintedBlock => { const semanticDigest = computeStringDigest(block.semanticText); const anchorDigest = computeStringDigest(block.anchorText); const compositeKey = `${semanticDigest}:${anchorDigest}`; const previousDigest = computeStringDigest(previousBlock?.semanticText ?? ''); const nextDigest = computeStringDigest(nextBlock?.semanticText ?? ''); const contextKey = computeStringDigest(`${previousDigest}:${nextDigest}`); return { ...block, semanticDigest, anchorDigest, compositeKey, contextKey, }; };