import type { DatabaseHandle } from './db.js';
/**
 * Fetch the last-seen mtime for a vault-relative path, or undefined if the
 * path has never been indexed.
 */
export declare function getSyncMtime(db: DatabaseHandle, path: string): number | undefined;
/**
 * Record that `path` was indexed at mtime `mtime`. `indexedAt` defaults to
 * Date.now() if omitted — callers that run batch jobs can pin a single
 * indexed_at across many rows.
 */
export declare function setSyncMtime(db: DatabaseHandle, path: string, mtime: number, indexedAt?: number): void;
/**
 * Every path currently tracked in sync state. Used by the pipeline to detect
 * deletions (paths present in the DB but no longer on disk).
 */
export declare function getAllSyncPaths(db: DatabaseHandle): string[];
/**
 * Remove the sync row for `path`. Called when a file is deleted from the vault.
 */
export declare function deleteSyncPath(db: DatabaseHandle, path: string): void;