import org.hipparchus.ode.nonstiff.DormandPrince54Integrator;
import org.junit.jupiter.api.Test;
import org.orekit.frames.FramesFactory;
import org.orekit.orbits.KeplerianOrbit;
import org.orekit.orbits.PositionAngle;
import org.orekit.propagation.SpacecraftState;
import org.orekit.propagation.events.ApsideDetector;
import org.orekit.propagation.events.handlers.ContinueOnEvent;
import org.orekit.propagation.numerical.NumericalPropagator;
import org.orekit.time.AbsoluteDate;
import org.orekit.time.TimeScalesFactory;

public class BugOrekitTest {

    @Test
    public void test() {
        KeplerianOrbit orbit = new KeplerianOrbit(6371e3 + 1200, 0.0012, 3.14, 0, 0, 0, PositionAngle.TRUE, FramesFactory.getTOD(false),
                                                  new AbsoluteDate(2020, 07, 11, 22, 53, 48.056, TimeScalesFactory.getUTC()), 3.986004415E14);
        double[][] tolerance = NumericalPropagator.tolerances(0.002, orbit, orbit.getType());
        DormandPrince54Integrator integrator = new DormandPrince54Integrator(0.001, 300, tolerance[0], tolerance[1]);
        integrator.setInitialStepSize(60);

        NumericalPropagator propagator = new NumericalPropagator(integrator);

        propagator.addEventDetector(new ApsideDetector(orbit).withHandler(new ContinueOnEvent<>()));
        propagator.addEventDetector(new ApsideDetector(orbit).withHandler(new ContinueOnEvent<>()));

        double[] apsidesCounters = new double[2];
        apsidesCounters[0] = 0;
        apsidesCounters[1] = 0;

        propagator.resetInitialState(new SpacecraftState(orbit, 1000).addAdditionalState("ApsideNumber", apsidesCounters));

        propagator.addEventDetector(new ApsideDetector(orbit).withHandler(new ApsideCounterOrekit()));

        propagator.propagate(orbit.getDate().shiftedBy(86400 * 360));
    }
}