import { Connection, TimetableConnection } from "../journey/Connection";
import { TransfersByOrigin } from "../gtfs/GtfsLoader";
import { DayOfWeek, StopID, Time } from "../gtfs/Gtfs";
import { ScanResultsFactory } from "./ScanResultsFactory";
/**
 * Implementation of the connection scan algorithm.
 */
export declare class ConnectionScanAlgorithm {
    private readonly connections;
    private readonly transfers;
    private readonly resultsFactory;
    constructor(connections: TimetableConnection[], transfers: TransfersByOrigin, resultsFactory: ScanResultsFactory);
    /**
     * Return an index of connections that achieve the earliest arrival time at each stop.
     */
    scan(origins: OriginDepartureTimes, destinations: StopID[], date: number, dow: DayOfWeek): ConnectionIndex;
    private scanTransfers;
}
/**
 * Index of connections that achieve the earliest arrivalTime time at each stop.
 */
export declare type ConnectionIndex = Record<StopID, Connection>;
/**
 * Index of departure stations and their departure time
 */
export declare type OriginDepartureTimes = Record<StopID, Time>;