import type { DatabaseSync } from 'node:sqlite';
import type { FileMeta, IndexStats } from './schema.js';
type Statement = ReturnType<DatabaseSync['prepare']>;
type PrepareStatement = (sql: string) => Statement;
export declare function getAllIndexableWithStatement(stmt: PrepareStatement): Array<{
    id: number;
    text: string;
}>;
export declare function getMaxSymbolIdWithStatement(stmt: PrepareStatement): number;
export declare function getStatsWithStatement(stmt: PrepareStatement, indexDir: string): IndexStats;
export declare function getMetadataWithStatement(stmt: PrepareStatement, key: string): string | undefined;
/**
 * P2.5: minimal index summary for search responses. Carries exactly the two
 * fields the search tool's zero-hit heuristic consumes (`totalFiles`,
 * `lastIndexed`) — NOT the full IndexStats — so a zero-hit query answers
 * "is there a persisted index at all?" without a second stats IPC round trip.
 */
export interface IndexSummary {
    totalFiles: number;
    lastIndexed: number | null;
}
export declare function getIndexSummaryWithStatement(stmt: PrepareStatement): IndexSummary;
export declare function getFileMetaWithStatement(stmt: PrepareStatement, file: string): FileMeta | null;
export declare function getAllFileMetasWithStatement(stmt: PrepareStatement): FileMeta[];
export {};
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