package exampleAlgorithms;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;

import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSlider;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.text.NumberFormatter;

import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonIOException;
import com.google.gson.JsonParser;
import com.google.gson.JsonSyntaxException;

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

public class Randomizer implements AddOn {
	private Control  control;
	private int minAmountOfElements = 3;
	private int maxAmountOfElements = 7;
	private JPanel content = new JPanel();
	//To Test the Layout Faster   
	public static void main(String[] args)
    {
        JFrame newFrame = new JFrame("exampleWindow");
        Randomizer instance = new Randomizer();
        newFrame.setContentPane(instance.getPanel());
        newFrame.pack();
        newFrame.setVisible(true);
	      newFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
	private File file;
	private double randomChance = 1.0;
	
	public Randomizer(){
		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(null);
		parameterPanel.setPreferredSize(new Dimension(300,300));
		JLabel minAmount = new JLabel("minAmountOfElements:");
		minAmount.setBounds(20, 60 , 200, 20);
		parameterPanel.add(minAmount);
		JLabel maxAmount = new JLabel("maxAmountOfElements:");
		maxAmount.setBounds(20, 85 , 200, 20);
		parameterPanel.add(maxAmount);
		
		//Integer formatter
		NumberFormat format = NumberFormat.getIntegerInstance();
		format.setGroupingUsed(false);
		format.setParseIntegerOnly(true);
		NumberFormatter integerFormatter = new NumberFormatter(format);
		integerFormatter.setMinimum(0);
		integerFormatter.setCommitsOnValidEdit(true);
				
				
		JFormattedTextField minAmountTextField = new  JFormattedTextField(integerFormatter);
		minAmountTextField.setValue(this.minAmountOfElements);
		minAmountTextField.setToolTipText("Only positive Integer.");
		minAmountTextField.addPropertyChangeListener(actionEvent -> this.minAmountOfElements = Integer.parseInt(minAmountTextField.getValue().toString()));
		minAmountTextField.setBounds(220, 60, 50, 20);
		parameterPanel.add(minAmountTextField);
		
		JFormattedTextField maxAmountTextField = new  JFormattedTextField(integerFormatter);
		maxAmountTextField.setValue(this.maxAmountOfElements);
		maxAmountTextField.setToolTipText("Only positive Integer.");
		maxAmountTextField.addPropertyChangeListener(actionEvent -> this.maxAmountOfElements = Integer.parseInt(maxAmountTextField.getValue().toString()));
		maxAmountTextField.setBounds(220, 85, 50, 20);
		parameterPanel.add(maxAmountTextField);
		
		
		JButton chooseFileButton = new JButton("Choose File");
		chooseFileButton.setBounds(20, 10, 200, 30);
		chooseFileButton.addActionListener(actionEvent -> file = openCatalogFile());
		parameterPanel.add(chooseFileButton);
		
		
		JSlider bitSlider = createFlipChanceSlider();
		bitSlider.setBounds(10, 110, 280, 80);
		parameterPanel.add(bitSlider);
		
		
		return parameterPanel;
	}
	
	private void run() {
		List<HolonObjectSketch> holonObjectCatalog = new ArrayList<HolonObjectSketch>();
		if(file == null)file = openCatalogFile();
		if(file == null) return;
		readCatalogFromJson(file, holonObjectCatalog);
		holonObjectCatalog.forEach(con -> con.checkMinMax());
		
		List<HolonObject> consumerList = new ArrayList<HolonObject>();
		rollOutNodes(control.getModel().getObjectsOnCanvas(), consumerList, control.getModel().getCurIteration());
		consumerList.forEach(con -> {
			con.getElements().clear();
			int randomAmountOfElementsToAdd = Random.nextIntegerInRange(minAmountOfElements, maxAmountOfElements + 1);
			for(int i = 0; i < randomAmountOfElementsToAdd; i++) {
				HolonElement ele = holonObjectCatalog.get(Random.nextIntegerInRange(0, holonObjectCatalog.size())).createHolonElement(control.getModel());
				ele.setActive(Random.nextDouble() < randomChance);
				con.getElements().add(ele);				
			}
		});
		control.calculateStateAndVisualForCurrentTimeStep();
		control.updateCanvas();
	}
	
	private void rollOutNodes(List<AbstractCpsObject> nodes, 	List<HolonObject> consumerList, int timeStep) {
		for (AbstractCpsObject aCps : nodes) {
			if (aCps instanceof HolonObject) {
				HolonObject hO = (HolonObject) aCps;
				if(hO.getEnergyAtTimeStep(control.getModel().getCurIteration()) < 0)consumerList.add(hO);
			}
			else if(aCps instanceof CpsUpperNode) {
				rollOutNodes(((CpsUpperNode)aCps).getNodes(), consumerList ,timeStep );
			}
		}
		
	}
	
	
	
	@Override
	public JPanel getPanel() {
		return content;
	}
	@Override
	public void setController(Control control) {
		this.control = control;
		
	}

	private class HolonObjectSketch {
		public String name;
		public int minAmount;
		public int maxAmount;
		public float energy;
		public HolonObjectSketch(String name, int minAmount, int maxAmount, float energy) {
			this.name = name;
			this.minAmount = minAmount;
			this.maxAmount = maxAmount;
			this.energy = energy;
		}
		public HolonElement createHolonElement(Model model) {
			return new HolonElement(name, Random.nextIntegerInRange(minAmount, maxAmount + 1), energy , model);
		}
		
		public void checkMinMax() {
			minAmount = Math.abs(minAmount);
			maxAmount = Math.abs(maxAmount);
			if(maxAmount < minAmount) {
				//Swap
				int intermediate = minAmount;
				minAmount = maxAmount;
				maxAmount = intermediate;
			}
		}
		
		
	}
	private JSlider createFlipChanceSlider() {
		JSlider flipChance =new JSlider(JSlider.HORIZONTAL,0, 100, 100);
		flipChance.setBorder(BorderFactory.createTitledBorder("ActiveProbability"));
		flipChance.setMajorTickSpacing(50);
		flipChance.setMinorTickSpacing(5);
		flipChance.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") );
		flipChance.addChangeListener(actionEvent ->randomChance  =(double)flipChance.getValue()/100.0);
		flipChance.setLabelTable( labelTable );
		flipChance.setPaintLabels(true);
		return flipChance;
	}
	
	
	
	private static class Random{
		
		
		private static java.util.Random random = new java.util.Random();
	
		/**
		 * True or false
		 * @return the random boolean.
		 */
		public static boolean nextBoolean(){
			return random.nextBoolean();
		}
		/**
		 * Between 0.0(inclusive) and 1.0 (exclusive)
		 * @return the random double.
		 */
		public static double nextDouble() {
			return random.nextDouble();
		}
		
		/**
		 * Random Int in Range [min;max[ with UniformDistirbution
		 * @param min
		 * @param max
		 * @return
		 */
		public static int nextIntegerInRange(int min, int max) {
			return min + random.nextInt(max - min);
		}
	}
	private void readCatalogFromJson(File file, List<HolonObjectSketch> catalog) {
		Gson gson = new Gson();
		JsonParser parser = new JsonParser();
		try {
			JsonElement jsonTreeRoot = parser.parse(new FileReader(file));
			if(jsonTreeRoot.isJsonArray()) {
				JsonArray jsonArray = jsonTreeRoot.getAsJsonArray();
				jsonArray.forEach(jsonObject -> {
					HolonObjectSketch newObject= gson.fromJson( jsonObject, HolonObjectSketch.class);
					catalog.add(newObject);
				});
			}	
		} catch (JsonSyntaxException e) {
			e.printStackTrace();
		} catch (JsonIOException e) {
			e.printStackTrace();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		
	}
	
	
	
	
	
	public File openCatalogFile() {		
		JFileChooser fileChooser = new JFileChooser();
		fileChooser.setCurrentDirectory(new File(System.getProperty("user.dir")+"/src/"));
		fileChooser.setFileFilter(new FileNameExtensionFilter("JSON Files", "json"));
		fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
		fileChooser.setAcceptAllFileFilterUsed(false);
		int result = fileChooser.showOpenDialog(content);
		if(result == JFileChooser.APPROVE_OPTION) {
			//Found a file
			return fileChooser.getSelectedFile();
		}
		return null;
	}

}