import { PathSeriesResult, SnapshotsQuery, SnapshotsResult } from './contract';
import { RollupEngine } from './rollup';
import { Store } from './store';
export declare const LIMIT_DEFAULT = 200;
export declare const LIMIT_MAX = 5000;
export declare const RAW_WINDOW_DAYS = 7;
export declare class QueryService {
    private store;
    private rollups;
    constructor(store: Store, rollups: RollupEngine);
    snapshots(q: SnapshotsQuery, now: number): Promise<SnapshotsResult>;
    pathSeries(pathName: string, q: SnapshotsQuery, now: number): Promise<PathSeriesResult>;
    private minutesFrom;
    private readRawWindow;
    countToday(now: number): Promise<number>;
}
export declare class QueryError extends Error {
    code: string;
    constructor(code: string, message: string);
}