package org.gcube.portlets.user.geoportaldataviewer.client.gis;

import ol.Collection;
import ol.Coordinate;
import ol.control.Control;
import ol.control.FullScreen;
import ol.control.MousePosition;
import ol.control.ZoomSlider;
import ol.geom.LineString;
import ol.proj.Projection;


/**
 * The Class MapUtils.
 *
 * @author Francesco Mangiacrapa at ISTI-CNR (francesco.mangiacrapa@isti.cnr.it)
 * 
 * Nov 12, 2020
 */
public final class MapUtils {


    /**
     * Creates some default controls and adds it to the collection.
     *
     * @param controls collection with controls
     */
    public static void addDefaultControls(final Collection<Control> controls) {

        controls.push(new FullScreen());
        controls.push(new ZoomSlider());
        MousePosition mousePosition = new MousePosition();
        mousePosition.setCoordinateFormat(Coordinate.createStringXY(5));
        controls.push(mousePosition);
        //controls.push(new ZoomToExtent());

    }
    
	/**
	 * Transform coordiante.
	 *
	 * @param centerCoordinate the center coordinate
	 * @param source the source
	 * @param target the target
	 * @return the coordinate
	 */
	public static Coordinate transformCoordiante(Coordinate centerCoordinate, String source, String target) {
		return Projection.transform(centerCoordinate, source, target);
	}
	
	

	/**
	 * Distance between centroid.
	 *
	 * @param ex1 the ex 1
	 * @param ex2 the ex 2
	 * @return the long
	 */
	public static long distanceBetweenCentroid(ExtentWrapped ex1, ExtentWrapped ex2) {
		return distanceBetween(ex1.getCenter(),ex2.getCenter());
	}
	
	
	/**
	 * Distance between.
	 *
	 * @param c1 the c 1
	 * @param c2 the c 2
	 * @return the long
	 */
	public static long distanceBetween(Coordinate c1, Coordinate c2) {

		Coordinate[] arrayCoordinate = new Coordinate[2];
		arrayCoordinate[0] = c1;
		arrayCoordinate[1] = c2;

		LineString ls = new LineString(arrayCoordinate);
//		GWT.log("Line length is: "+ls);
		return Math.round(ls.getLength() * 100) / 100;
	}
	
	
	/**
	 * Reverse coordinate.
	 *
	 * @param coord the coord
	 * @return the coordinate
	 */
	public static Coordinate reverseCoordinate(Coordinate coord){
		return new Coordinate(coord.getY(), coord.getX());
	}
}