package pictures;

import data.ListItem;
import Aufgabe_1.B.B;
import Aufgabe_1.A.*;
import Aufgabe_1.C.*;
import Aufgabe_1.D.D;
import model.GeometricModelElement;
import java.util.concurrent.ThreadLocalRandom;

/**
 * Methods for manipulating an existing picture by creating a new one
 *
 * @author Nora Wester
 */
public class PictureManipulator {

	/**
	 * manipulates the given picture in the manner, that every element is duplicated and moved
	 *
	 * @param g
	 *            original picture
	 * @return the new changed picture
	 */
	public static ListItem<GeometricModelElement> doSomething(ListItem<GeometricModelElement> g) {
		ListItem<GeometricModelElement> newGraphic = new ListItem<GeometricModelElement>(null);

		for (int j = 1; j <= g.getSize(); j++) {
			GeometricModelElement e = g.get(j);
			// draw the original element
			newGraphic.insert(e);
			// clone it
			GeometricModelElement cloneE = e.cloneElement();
			// and move it
			cloneE.move(1, 1);
			newGraphic.insert(cloneE);
		}
		return newGraphic;
	}


	public static ListItem<GeometricModelElement> nextElement(ListItem<GeometricModelElement> g)
	{
		A<GeometricModelElement> newB = new A<>();
		newB.ringShiftLeft(g);
		return g;
	}
	public static ListItem<GeometricModelElement> removeFirst(ListItem<GeometricModelElement> g)
	{
		B<GeometricModelElement> newB = new B<>();
		newB.removeHead(g);
		return g;
	}

	public static ListItem<GeometricModelElement> lastElement(ListItem<GeometricModelElement> g)
	{
		B<GeometricModelElement> newB = new B<>();
		newB.ringShiftRight(g);
		return g;
	}

	public static ListItem<GeometricModelElement> invert(ListItem<GeometricModelElement> g)
	{
		C<GeometricModelElement> newC = new C<>();
		newC.invert(g);
		return g;
	}

	public static ListItem<GeometricModelElement> random(ListItem<GeometricModelElement> g)
	{
		D<GeometricModelElement> newD = new D<>();
		C<GeometricModelElement> newC = new C<>();
		Object[] arr = newD.listIntoArray(g, GeometricModelElement.class);
//		int rnd1, rnd2;
//		for(int i=0; i < 50; i++) {
//			GeometricModelElement swap;
//			rnd1 = ThreadLocalRandom.current().nextInt(0, arr.length);
//			rnd2 = ThreadLocalRandom.current().nextInt(0, arr.length);
//			swap = arr[rnd1];
//			arr[rnd1] = arr[rnd2];
//			arr[rnd2] = swap;
//		}
//		g = newC.arrayIntoList(arr);

		return g;
	}

}