satSim = create_satellite_sim(satConfig, groundStation);
% viewer = satelliteScenarioViewer(satSim.sc);

sampleTimes = satConfig.startTime:seconds(satConfig.sampleTime):satConfig.stopTime;
distancesToSat = zeros(size(sampleTimes));
elevationAnglesToSat = zeros(size(sampleTimes));
satelitteVisibilities = zeros(size(sampleTimes));
dopplerShifts = zeros(size(sampleTimes));

progressStartText = "Starting ...";
f = waitbar(0, progressStartText, "Name", "Task 1");

progressTotal = numel(sampleTimes);
progressQueue = parallel.pool.DataQueue;

parfor_waitbar(f, progressTotal, progressStartText, true);
progressListener = afterEach(progressQueue, @(info) parfor_waitbar(f, progressTotal, info, false));

parfor idx = 1 : numel(sampleTimes)
    res = perform_access_analysis(satSim, sampleTimes(idx));
    distancesToSat(idx) = res.distanceToSatellite;
    elevationAnglesToSat(idx) = res.elevationAngleToSatellite;
    satelitteVisibilities(idx) = res.satelliteVisible;
    dopplerShifts(idx) = res.fshift;
    send(progressQueue, sprintf("Index %d", idx));
end

delete(progressListener);
if ishandle(f)
    close(f);
end

accessAnalysisResults.times = sampleTimes;
accessAnalysisResults.distances = distancesToSat;
accessAnalysisResults.elevationAngles = elevationAnglesToSat;
accessAnalysisResults.satelitteVisibilities = satelitteVisibilities;
accessAnalysisResults.dopplerShifts = dopplerShifts;

carrierFrequency = 2.4e9;
timeSeconds = seconds(sampleTimes - sampleTimes(1));

rangeRate = gradient(accessAnalysisResults.distances, timeSeconds);
dopplerShift = -(rangeRate / physconst("lightspeed")) * carrierFrequency;

accessAnalysisResults.geometricDopplerShifts = dopplerShift;

% prevent figure plot when only the other tasks should be calculated
% task2 needs task1
if calc_task1
    figure;
    plot(sampleTimes, distancesToSat);
    grid on;
    xtickformat("HH:mm");
    xlabel("Time of day [HH:mm]");
    ylabel("Distance to Satellite [m]");
    title("Distance over time plot of satellite pass");

    figure;
    plot(sampleTimes, elevationAnglesToSat);
    grid on;
    xtickformat("HH:mm");
    xlabel("Time of day [HH:mm]");
    ylabel("Elevation angle to satellite [degree]");
    title("Elevation angle over time plot of satellite pass");
end