//-------------------------------------------------------
        //Methods
        //public void SerializeRunData()
        //{
        //    Run run = new Run();
        //    run.StartTime = StartTime;
        //    run.ElapsedTime = stopwatch.Elapsed.TotalSeconds;
        //    run.Distance = Distance;
        //    run.PaceGoal = PaceGoal;
        //    run.PaceActual = PaceActual;
        //    run.Locations = Locations;

        //    //now serialize to json file
        //    string output = JsonConvert.SerializeObject(run);
        //    Console.WriteLine(output);
        //}

        public async Task StartRun()
        {
            while (!IsDone)
            {
                await GetElapsedTimeAsync();
                await GetLocationAsync();
                await SpeakNowRunnerPromptAsync();
            }

            if (IsDone)
            {
                //get final stats
                DistanceInMiles += GPSLocation.CalcDistance(
                    Locations[Locations.Count - 1], Locations[Locations.Count - 2]);
                PaceActual      = (stopwatch.Elapsed.TotalSeconds / 60) / DistanceInMiles;
                DispElapsedTime = ($"{stopwatch.Elapsed.Minutes.ToString("0")}:{stopwatch.Elapsed.Seconds.ToString("00")}");
            }
        }
        public async Task GetLocationAsync()
        {
            if ((stopwatch.Elapsed.TotalSeconds / _nextGPSReading) >= 1.0)
            {
                GPSCoordinate coordinates = await GPSLocation.GetCoordinatesAsync(stopwatch.Elapsed.TotalSeconds);

                Locations.Add(coordinates);

                if (Locations.Count > 1)
                {
                    DistanceInMiles += GPSLocation.CalcDistance(Locations[Locations.Count - 1], Locations[Locations.Count - 2]);
                    if (DistanceInMiles > .3)
                    {
                        PaceActual = (stopwatch.Elapsed.TotalSeconds / 60) / DistanceInMiles;
                    }
                }
                _nextGPSReading += _gpsIntervalInSec;
            }
        }