import type { TimeBasedLocation, TimeBasedOptions, GpsStrength, LocationSubscription } from './types';
type TickCallback = (location: TimeBasedLocation) => void;
type GpsStrengthCallback = (strength: GpsStrength) => void;
type StationaryChangeCallback = (isStationary: boolean) => void;
/**
 * Time-based location tracker — polls GPS at a fixed interval (default 3s)
 * regardless of distance traveled. Designed for fitness route recording.
 *
 * Unlike watchPosition (which fires when distanceFilter is exceeded),
 * TimeBasedTracker gives you a point every N seconds — perfect for
 * drawing smooth route lines and calculating accurate pacing.
 */
export declare class TimeBasedTracker {
    private watchId;
    private intervalMs;
    private stationaryIntervalMs;
    private adaptiveInterval;
    private maxAccuracy;
    private isPaused;
    private _isStationary;
    private _gpsStrength;
    private _cumulativeDistance;
    private _lastLocation;
    private tickSub;
    private tickListeners;
    private gpsStrengthListeners;
    private stationaryListeners;
    /** Whether the tracker is currently active */
    get isTracking(): boolean;
    /** Current GPS signal strength */
    get gpsStrength(): GpsStrength;
    /** Whether the device is currently estimated as stationary */
    get isStationary(): boolean;
    /** Cumulative distance tracked in meters */
    get cumulativeDistance(): number;
    /** Current tracking interval in ms */
    get interval(): number;
    /**
     * Start time-based location tracking.
     * Returns a promise that resolves when the first valid fix is obtained.
     */
    start(options?: TimeBasedOptions): Promise<void>;
    /** Stop time-based tracking */
    stop(): void;
    /** Pause location updates (keeps session alive, stops GPS) */
    pause(): void;
    /** Resume location updates after pause */
    resume(): void;
    /** Change the tracking interval dynamically */
    setInterval(ms: number): void;
    /** Subscribe to location tick events */
    onTick(callback: TickCallback): LocationSubscription;
    /** Subscribe to GPS strength changes */
    onGpsStrengthChange(callback: GpsStrengthCallback): LocationSubscription;
    /** Subscribe to stationary/moving state changes */
    onStationaryChange(callback: StationaryChangeCallback): LocationSubscription;
    /** Get the last known location */
    getLastLocation(): TimeBasedLocation | null;
    /** Reset cumulative distance to 0 */
    resetDistance(): void;
    private parseLocation;
}
/** Singleton instance for easy import */
export declare const timeBasedTracker: TimeBasedTracker;
export default TimeBasedTracker;
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