/// <reference types="node" />
import { LocationAndEtaDetailType } from "../base/types";
import Timeout = NodeJS.Timeout;
export declare type LocationSubscribeFunctionType = (location: LocationAndEtaDetailType, timestamp: number) => void;
export declare type ReloadLocationFunctionType = () => (LocationAndEtaDetailType | Promise<LocationAndEtaDetailType>);
export declare type ConfigType = {
    FORCE_RELOAD_TIME_THRESHOLD: number;
    MAX_NOTIFY_TIME_THRESHOLD: number;
    MIN_NOTIFY_TIME_THRESHOLD: number;
};
export declare type PartialConfigType = {
    FORCE_RELOAD_TIME_THRESHOLD?: number;
    MAX_NOTIFY_TIME_THRESHOLD?: number;
    MIN_NOTIFY_TIME_THRESHOLD?: number;
};
declare class LocationTracker {
    config: ConfigType;
    location: LocationAndEtaDetailType;
    lastNotifiedLocation: LocationAndEtaDetailType;
    timestamp: number;
    notifyTimestamp: number;
    _subscribers: Set<LocationSubscribeFunctionType>;
    _fastSubscribers: Set<LocationSubscribeFunctionType>;
    _intervalId?: Timeout;
    constructor();
    setConfig: (nextConfig: PartialConfigType) => void;
    reloadLocationFunction: ReloadLocationFunctionType;
    setReloadLocationFunction: (reloadLocationFunction: ReloadLocationFunctionType) => void;
    typeCheckLocation: ({ location }: LocationAndEtaDetailType) => void;
    typeCheckEtaEtc: ({ eta, accuracy, bearing, speed, altitude }: LocationAndEtaDetailType) => void;
    handleLocationChange: (newLocation: LocationAndEtaDetailType) => void;
    forceReloadLocation: () => Promise<void>;
    tick: () => void;
    startTracking: () => void;
    stopTracking: () => void;
    notifySubscribers: () => void;
    notifyFastSubscribers: () => void;
    subscribe: (subscriber: LocationSubscribeFunctionType) => () => void;
    fastSubscribe: (subscriber: LocationSubscribeFunctionType) => () => void;
    throw: (message: string) => never;
}
declare const locationTracker: LocationTracker;
export default locationTracker;
export declare const handleLocationChange: (newLocation: LocationAndEtaDetailType) => void;
export declare const setConfig: (nextConfig: PartialConfigType) => void;
export declare const setReloadLocationFunction: (reloadLocationFunction: ReloadLocationFunctionType) => void;
export declare const startTracking: () => void;
export declare const stopTracking: () => void;
export declare const subscribe: (subscriber: LocationSubscribeFunctionType) => () => void;
export declare const fastSubscribe: (subscriber: LocationSubscribeFunctionType) => () => void;