import { StopId } from '../stops/stops.js';
import { StopsIndex } from '../stops/stopsIndex.js';
import { Duration, Time } from '../timetable/time.js';
import { Timetable } from '../timetable/timetable.js';
/**
 * An access path from the query origin to an initial boarding stop.
 *
 * Equivalent origin stops (reached at zero cost) have no `duration`.
 * Stops reachable via a timed walking transfer carry a `duration` in minutes.
 */
export type AccessPoint = {
    fromStopId: StopId;
    toStopId: StopId;
    duration: Duration;
};
/**
 * Collects access paths from a query origin and resolves the set of
 * distinct departure-time slots for Range RAPTOR.
 */
export declare class AccessFinder {
    private readonly timetable;
    private readonly stopsIndex;
    constructor(timetable: Timetable, stopsIndex: StopsIndex);
    /**
     * Returns every initial access path from the query origin: equivalent stops
     * (no duration) plus every stop reachable via a single timed walking transfer
     * (REQUIRES_MINIMAL_TIME), keeping the shortest walk when multiple origins
     * can reach the same stop.
     *
     * @param origin                  Origin stop ID.
     * @param fallbackMinTransferTime Transfer time used when a walking transfer
     *                                has no explicit `minTransferTime` in the timetable data.
     */
    collectAccessPaths(queryOrigin: StopId, fallbackMinTransferTime: Duration): AccessPoint[];
    /**
     * Collects all distinct origin departure times within `[from, to]`
     * (inclusive) and, for each slot, the specific access paths that directly
     * induce it — i.e. paths whose boarded stop has a boardable trip departing
     * at exactly `depTime + path.duration`.
     *
     * Returned array is sorted **latest-first**. The Range RAPTOR outer loop
     * seeds only the responsible paths for each slot, avoiding redundant
     * exploration of access stops whose boarding opportunities belong to a
     * later slot and whose journeys would therefore be dominated by it.
     *
  
     * @param accessPaths Access paths from the origin to initial boarding stops.
     * @param from        Earliest origin departure time (inclusive).
     * @param to          Latest origin departure time (inclusive).
     */
    collectDepartureTimes(accessPaths: AccessPoint[], from: Time, to: Time): {
        depTime: Time;
        legs: AccessPoint[];
    }[];
}