import { RollupDay, RollupHour, Snapshot } from './contract';
import { haversineNm } from './aggregate';
import { Logger, Store } from './store';
export declare function clampRange(fromTs: number, toTs: number): [number, number];
export { haversineNm };
export declare function trackDistanceNm(rows: Snapshot[]): number;
export declare function buildHourRollup(hour: string, rows: Snapshot[]): RollupHour;
export declare function buildDayRollup(date: string, hours: RollupHour[]): RollupDay;
export declare class RollupEngine {
    private store;
    private log;
    private hourKeysDone;
    private dayKeysDone;
    private initialized;
    constructor(store: Store, log: Logger);
    private hourlyPath;
    private dailyPath;
    private listRollupFiles;
    init(): Promise<void>;
    catchUp(now: number): Promise<void>;
    private readHourlyMonth;
    readHourly(fromTs: number, toTs: number): Promise<RollupHour[]>;
    private hourlyMonthsOnDisk;
    readDaily(fromTs: number, toTs: number): Promise<RollupDay[]>;
    status(now: number): Promise<{
        last_hour: string | null;
        hours_pending: number;
    }>;
}