import Database from "better-sqlite3";
import type { AuctionServer } from "./types.js";
export interface StoredSnapshot {
    currency: string;
    id: number;
    serverCount: number;
    takenAt: string;
}
export declare function initSchema(db: Database.Database): void;
export declare function openDatabase(dbPath?: string): Database.Database;
export declare function saveSnapshot(db: Database.Database, servers: AuctionServer[], currency: string): StoredSnapshot;
export declare function getLatestSnapshot(db: Database.Database, currency: string): StoredSnapshot | null;
export declare function getSnapshotServers(db: Database.Database, snapshotId: number): AuctionServer[];
export declare function pruneSnapshots(db: Database.Database, keepCount?: number): number;