package seng302.model;

import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import seng302.gameServer.GameState;
import seng302.utilities.GeoUtility;

/**
 * Test update function in Yacht.java to make sure yacht will not be collide each other within 25.0
 * meters.
 */
public class UpdateYachtTest {

    private ServerYacht yacht1 = new ServerYacht("Yacht", 1, "1", "Yacht" + 1, "Yacht" + 1, "Test1");
    private ServerYacht yacht2 = new ServerYacht("Yacht", 2, "2", "Yacht" + 2, "Yacht" + 2, "Test2");
    private GeoPoint geoPoint1 = new GeoPoint(50.0, 50.0);
    private GeoPoint geoPoint2 = GeoUtility.getGeoCoordinate(geoPoint1, 90.0, 50.0);

    @Before
    public void setUpRace() {
        new GameState("");
        GameState.addYacht(1, yacht1);
        GameState.addYacht(2, yacht2);
        PolarTable.parsePolarFile(getClass().getResourceAsStream("/config/acc_polars.csv"));
    }

    @Test
    public void testUpdateYachtWithCollision() {
        // Yacht 1 heading towards 90 degrees heading
        yacht1.setLocation(geoPoint1);

        // Yacht 2 heading towards 270 degrees heading
        yacht2.setLocation(geoPoint1);

        // Start yacht 1 and rest yacht 2
        if (!yacht1.getSailIn()) {
            yacht1.toggleSailIn();
        }
        GameState.checkForCollision(yacht1);
        double moved = GeoUtility.getDistance(yacht1.getLocation(), geoPoint1);
        Assert.assertEquals(GameState.BOUNCE_DISTANCE_YACHT, moved, 0.1);
    }

    @Test
    public void testUpdateYachtWithoutCollision() {
        // Yacht 1 heading towards 90 degrees heading
        yacht1.setLocation(geoPoint1);

        // Yacht 2 heading towards 270 degrees heading
        yacht2.setLocation(geoPoint2);

        // Start yacht 1 and rest yacht 2
        if (!yacht1.getSailIn()) {
            yacht1.toggleSailIn();
        }
        GameState.checkForCollision(yacht1);
        Assert.assertTrue(
            GameState.YACHT_COLLISION_DISTANCE < GeoUtility.getDistance(geoPoint1, geoPoint2
            )
        ); //Check that yachts are actually far enough apart for no collision.
        Assert.assertEquals(geoPoint1.getLat(), yacht1.getLocation().getLat(), 0.001);
        Assert.assertEquals(geoPoint1.getLng(), yacht1.getLocation().getLng(), 0.001);
        Assert.assertEquals(geoPoint2.getLat(), yacht1.getLocation().getLat(), 0.001);
        Assert.assertEquals(geoPoint2.getLng(), yacht1.getLocation().getLng(), 0.001);
    }
}