package ui.view;

import interfaces.IGraphedElement;
import ui.controller.SingletonControl;
import ui.model.Model;


public class IndexTranslator {
	public static int STANDARD_GRAPH_ACCURACY = 100;
	   /**
     * Determines the index of the internal value array
     * of an element that should be used, since elements only save 100 values,
     * but iterations and local period can be anything between 1 and 100000.
     * 
     * @param m the corresponding model.
     * @param e the element for which the calculation should be made.
     * @param timeStep the iteration for which the calculation should be made.
     * @return
     */
    public static int getEffectiveIndex(Model m, IGraphedElement e, int timeStep){
    	if(e.isStretching())return timeStep*100/(m==null?STANDARD_GRAPH_ACCURACY:m.getIterations());
    	else return timeStep%e.getLocalPeriod()*100/e.getLocalPeriod();
    }
    
    /**
     * Same as getEffectiveIndex(Model, IGraphedElement, int),
     * but using the Model obtained from the singleton controller
     * to determine the total number of iterations(for "use global").
     */
    public static int getEffectiveIndex(IGraphedElement e, int timeStep){
    	return getEffectiveIndex(SingletonControl.getInstance().getControl()==null ? null : SingletonControl.getInstance().getControl().getModel(),e,timeStep);
    }
    
    /**
     * Same as getEffectiveIndex(Model, IGraphedElement),
     * but the current iteration is also obtained from the standard model.
     */
    public static int getEffectiveIndex(IGraphedElement e){
    	return getEffectiveIndex(e,SingletonControl.getInstance().getControl().getModel().getCurIteration());
    }
}