package exampleAlgorithms;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.stream.Collectors;

import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSlider;

import api.AddOn;
import classes.AbstractCpsObject;
import classes.CpsUpperNode;
import classes.HolonElement;
import classes.HolonElement.Priority;
import classes.HolonObject;
import classes.HolonSwitch;
import ui.controller.Control;

/**
 * A short algorithm to distribute the Priorities for the whole Canvas.
 * @author tom
 *
 */


public class RandomPriority implements AddOn {
	/**
	 * Its like a Gradient the Values are on one Axis from Start to End:
	 * |--start--lm--mh--he--end--|
	 * lm: lowMedium
	 * mh: mediumHigh
	 * he: highEssential
	 */
	private int lm = 25 , mh = 50, he = 75;
	private final int start = 0, end = 100;
	
	
	
	
	
	private Control  control;
	
	private JPanel content = new JPanel();
	private JSlider lowChanceSlider = new JSlider(JSlider.HORIZONTAL,0, 100, lm - start);
	private JSlider mediumChanceSlider = new JSlider(JSlider.HORIZONTAL,0, 100, mh - lm);
	private JSlider highChanceSlider = new JSlider(JSlider.HORIZONTAL,0, 100, he - mh);
	private JSlider essentialChanceSlider = new JSlider(JSlider.HORIZONTAL,0, 100, end - he);
	public static void main(String[] args)
	{
	      JFrame newFrame = new JFrame("exampleWindow");
	      RandomPriority instance = new RandomPriority();
	      newFrame.setContentPane(instance.getPanel());
	      newFrame.pack();
	      newFrame.setVisible(true);
	      newFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
	
	
	
	public RandomPriority(){
		content.setLayout(new BorderLayout());
		content.add(createParameterPanel(), BorderLayout.CENTER);
		JButton buttonRun = new JButton("Run");
		buttonRun.addActionListener(actionEvent -> run());
		content.add(buttonRun, BorderLayout.PAGE_END);
		content.setPreferredSize(new Dimension(300,300));
	}
	private JPanel createParameterPanel() {
		JPanel parameterPanel = new JPanel();
		parameterPanel.setLayout(new BoxLayout(parameterPanel, BoxLayout.PAGE_AXIS));
		createParamaterSlider(parameterPanel);
		return parameterPanel;
	}
	private void createParamaterSlider(JPanel parameterPanel) {
		
		parameterPanel.add(initVisualizeSlider(this.lowChanceSlider, "Low"));
		parameterPanel.add(initVisualizeSlider(this.mediumChanceSlider, "Medium"));
		parameterPanel.add(initVisualizeSlider(this.highChanceSlider, "High"));
		parameterPanel.add(initVisualizeSlider(this.essentialChanceSlider, "Essential"));
		
		
		lowChanceSlider.addChangeListener(actionEvent ->{
			setLM(lowChanceSlider.getValue());
			updateSliders();
			System.out.println("lowChance = " +lowChanceSlider.getValue());
		});
		mediumChanceSlider.addChangeListener(actionEvent ->{
			if(lm + mediumChanceSlider.getValue() <= 100) setMH(lm + mediumChanceSlider.getValue());
			else setLM(end - mediumChanceSlider.getValue());
			updateSliders();
			System.out.println("mediumChance = " +  mediumChanceSlider.getValue());
		});
		highChanceSlider.addChangeListener(actionEvent ->{
			if(mh + highChanceSlider.getValue() <= 100) setHE(mh + highChanceSlider.getValue());
			else setMH(end - highChanceSlider.getValue());
			updateSliders();
			System.out.println("highChance = " +highChanceSlider.getValue());
		});
		essentialChanceSlider.addChangeListener(actionEvent ->{
			setHE(end - essentialChanceSlider.getValue());
			updateSliders();
			System.out.println("essentialChance = " +essentialChanceSlider.getValue());
		});
		
		
		
	}

	private void setLM(int value) {
		lm = clamp(value, 0, 100);
		if(lm > mh) mh = lm;
		if(lm > he) he = lm;
	}
	
	private void setMH(int value) {
		mh = clamp(value, 0, 100);
		if(mh < lm) lm = mh;
		if(mh > he) he = mh;
	}
	
	private void setHE(int value) {
		he = clamp(value, 0, 100);
		if(he < lm) lm = he;
		if(he < mh) mh = he;
	}
	
	
	private int clamp(int input, int min , int max) {
		return Math.max(min, Math.min(max, input));
	}
	
	
	private void updateSliders(){
		lowChanceSlider.setValue(lm - start);
		mediumChanceSlider.setValue(mh - lm);
		highChanceSlider.setValue(he - mh);
		essentialChanceSlider.setValue(end - he);
	}
	
	

	private JSlider initVisualizeSlider(JSlider jslider, String name) {
		jslider.setBorder(BorderFactory.createTitledBorder(name));
		jslider.setMajorTickSpacing(50);
		jslider.setMinorTickSpacing(5);
		jslider.setPaintTicks(true);
		Hashtable<Integer, JLabel> labelTable = new Hashtable<Integer, JLabel>();
		labelTable.put( Integer.valueOf( 0 ), new JLabel("0.0") );
		labelTable.put( Integer.valueOf( 50 ), new JLabel("0.5") );
		labelTable.put( Integer.valueOf( 100 ), new JLabel("1.0") );
		jslider.setLabelTable( labelTable );
		jslider.setPaintLabels(true);
		return jslider;
	}
	private void run() {
		//control.getModel().getObjectsOnCanvas().stream().filter(aCps -> aCps instanceof HolonObject)
		List<HolonElement> elementList = createListOfHolonObjects(control.getModel().getObjectsOnCanvas()).stream().flatMap(hObject -> hObject.getElements().stream()).collect(Collectors.toList());
		for(HolonElement element : elementList) {
			// Generate a random number between 0 and 100
			double randomDoubleInRange = Math.random() * 100.0;
			if(randomDoubleInRange <= lm) {
				element.setPriority(Priority.Low);
			} else if(randomDoubleInRange <= mh) {
				element.setPriority(Priority.Medium);
			} else if(randomDoubleInRange <= he) {
				element.setPriority(Priority.High);
			} else {
				element.setPriority(Priority.Essential);
			}
			//System.out.println(randomDoubleInRange + ":" + element.getPriority());
			
		}
		control.calculateStateAndVisualForCurrentTimeStep();
		control.updateCanvas();
	}
	
	
	

	private List<HolonObject> createListOfHolonObjects(List<AbstractCpsObject> objectsOnCanvas) {
	List<HolonObject> list = new ArrayList<HolonObject>();
	for(AbstractCpsObject aCps :  objectsOnCanvas) {
		if(aCps instanceof HolonObject) list.add((HolonObject) aCps);
		else if(aCps instanceof CpsUpperNode)list.addAll(createListOfHolonObjects(((CpsUpperNode)aCps).getNodes()));
	}
	return list;
	}
	
	
	
	@Override
	public JPanel getPanel() {
		return content;
	}
	@Override
	public void setController(Control control) {
		this.control = control;
		
	}

}