/// <reference types="google.maps" />
import { GeoRoutesClient, CalculateRoutesResponse } from "@aws-sdk/client-geo-routes";
import { MigrationPlacesService } from "../places";
export declare class MigrationDirectionsService {
    _client: GeoRoutesClient;
    _placesService: MigrationPlacesService;
    route(options: google.maps.DirectionsRequest, callback?: (a: google.maps.DirectionsResult | null, b: google.maps.DirectionsStatus) => void): Promise<google.maps.DirectionsResult>;
    /**
     * Helper function to execute route calculation and handle responses
     *
     * This function encapsulates the common logic for calculating routes:
     *
     * 1. Creates and sends a CalculateRoutesCommand
     * 2. Converts Amazon Location response to Google Maps format
     * 3. Handles callbacks and promise resolution
     *
     * @param resolve - The resolve function from the outer Promise in "route"
     * @param reject - The reject function from the outer Promise in "route"
     * @param input - The input parameters for the CalculateRoutesCommand
     * @param options - The original "route" request options
     * @param originResponse - The resolved origin location
     * @param destinationResponse - The resolved destination location
     * @param unitSystem - The unit system to use for this "route"
     * @param callback - Optional callback function to be called with the result
     * @param waypointResponses - Optional array of resolved waypoint locations
     * @param waypointOrder - Optional array containing the order of waypoints after optimization
     */
    private _executeRouteCalculation;
    _convertAmazonResponseToGoogleResponse(response: CalculateRoutesResponse, options: google.maps.DirectionsRequest, originResponse: any, destinationResponse: any, unitSystem: any, waypointResponses?: any, waypointOrder?: number[]): google.maps.DirectionsResult;
    /**
     * Gets a summary string of the route based on major road or route names.
     *
     * Behavior:
     *
     * - Returns empty string if no road labels exist or no valid road names are found
     * - Returns a single road name if only one valid road name exists
     * - Returns a single road name if first and last valid road names are identical
     * - Returns "Road A and Road B" format when first and last valid road names are different
     *
     * Examples:
     *
     * - [null, "Second", "Third"] -> "Second and Third"
     * - ["First", null, "Third"] -> "First and Third"
     * - [null, "Same", "Same"] -> "Same"
     * - ["Only"] -> "Only"
     * - [null, undefined, "Valid"] -> "Valid"
     * - [null, undefined] -> ""
     *
     * @param route The route containing MajorRoadLabels
     * @returns Formatted summary string of the route
     */
    private _getSummary;
    _constructGeocodedWaypointsFromResponses(originResponse: any, destinationResponse: any, waypointResponses?: any): google.maps.DirectionsGeocodedWaypoint[];
    _constructGeocodedWaypoint(locationResponse: any): Record<"place_id", unknown> | Record<"types", unknown>;
    _getPath(coordinates: number[][]): google.maps.LatLng[];
    _getPolyline(coordinates: number[][]): string;
}