package Spiel;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.util.ArrayList;

import javax.swing.JComponent;


public class DrawArea extends JComponent {

  public Connection con;

  public int radius;
  // Image in which we're going to draw
  private Image image;
  // Graphics2D object ==> used to draw on
  private Graphics2D g2;
  // Mouse coordinates
  private int currentX, currentY, oldX, oldY;

  public DrawArea() {
    setDoubleBuffered(false);
    addMouseListener(new MouseAdapter() {
      public void mousePressed(MouseEvent e) {
        // save coord x,y when mouse is pressed
        oldX = e.getX()-20;
        oldY = e.getY();
      }
    });

    addMouseMotionListener(new MouseMotionAdapter() {
      public void mouseDragged(MouseEvent e) {
        // coord x,y when drag mouse
        currentX = e.getX()-20;
        currentY = e.getY();

        if (g2 != null) {
          // draw line if g2 context not null
          g2.setStroke(new BasicStroke(radius));
          g2.drawLine(oldX, oldY, currentX, currentY);
          //g2.drawOval(oldX, oldY, 20, 20);
          //g2.fillOval(currentX, currentY, radius, radius);
          // refresh draw area to repaint
          repaint();
          sendArray(radius, oldX, oldY, currentX, currentY);
          // store current coords x,y as olds x,y
          oldX = currentX;
          oldY = currentY;
        }
      }
    });
  }

  protected void paintComponent(Graphics g) {
    if (image == null) {
      // image to draw null ==> we create
      image = createImage(480, 560);
      g2 = (Graphics2D) image.getGraphics();
      // enable antialiasing
      g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
      // clear draw area
      clear();
    }

    g.drawImage(image, 20, 0, null);
  }

  // now we create exposed methods
  public void clear() {
    g2.setPaint(Color.white);
    // draw white on entire draw area to clear
    g2.fillRect(-20, 0, getSize().width, getSize().height);
    g2.setPaint(Color.black);
    repaint();
  }

  public void setColor(Color c) {
    // apply red color on g2 context
    g2.setPaint(c);
  }
  public void sendArray(int radius,int oldX,int oldY,int currentX,int currentY){
	  ArrayList<Integer> ar = new ArrayList<>();
	  ar.add(radius);
	  ar.add(oldX);
	  ar.add(oldY);
	  ar.add(currentX);
	  ar.add(currentY);
	  con.serversendMessage(ar);
  }

}