import { ITimeManagement, TimeState } from 'test-bed-schemas';
/**
 * A service to maintain the simulation time and scenario duration.
 * When no simulation is running, returns the actual system time.
 */
export declare class TimeService {
    private updatedSimTimeAt;
    /**
     * The date and time the simulationTime was updated as the number of milliseconds
     * from the unix epoch, 1 January 1970 00:00:00.000 UTC.
     */
    private timestamp;
    /**
     * The fictive date and time of the simulation / trial as the number of milliseconds
     * from the UNIX epoch, 1 January 1970 00:00:00.000 UTC.
     */
    private simTime;
    /**
     * The number of milliseconds from the start of the trial.
     */
    private simTimeElapsed;
    /**
     * Positive number, indicating how fast the simulation / trial time moves with respect
     * to the actual time. A value of 0 means a pause, 1 is as fast as real-time.
     */
    private simSpeed;
    /** The state of the Test-bed Time Service */
    private state;
    /**
     * Set the simulation time.
     *
     * @param simTime Received time message
     */
    setSimTime(tm: ITimeManagement): void;
    /**
     * Get the simulation time as Date.
     */
    get simulationTime(): Date;
    /**
     * Get elapsed time in msec.
     */
    get timeElapsed(): number;
    get timeState(): TimeState;
    /**
     * Positive number, indicating how fast the simulation / trial time moves with respect
     * to the actual time. A value of 0 means a pause, 1 is as fast as real-time.
     */
    get simulationSpeed(): number;
}