package com.base.engine;

import java.awt.Canvas;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.image.BufferStrategy;

import javax.swing.JFrame;

public class Window extends Canvas implements Runnable{

	public JFrame frame;
	public Input input;
	public Dimension frameSize;
	public Dimension canvasSize;
	public boolean isRunning;
	public double frameTime;
	public Thread thread;
	public String title;
	public boolean drag = false;
	public Point m1;

	public Window(int width, int height, int frameRate, String title){

		frameSize = new Dimension(width+4,height+23);
		canvasSize = new Dimension(width,height);

		setMaximumSize(frameSize);
		setMinimumSize(frameSize);
		setPreferredSize(frameSize);
		setSize(frameSize);

		this.frameTime = 1.0 / frameRate;
		input = new Input(this);
		this.title = title;

		addKeyListener(input);
		addFocusListener(input);
		addMouseListener(input);
		addMouseMotionListener(input);

		createFrame();

		start();

	}

	public void start(){

		if(isRunning) return;

		isRunning = true;
		thread = new Thread(this);
		thread.start();
	}

	public JFrame createFrame(){

		frame = new JFrame();
		frame.setUndecorated(true);
		frame.add(this);
		frame.setPreferredSize(frameSize);
		frame.pack();

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setResizable(false);
		frame.setLocationRelativeTo(null);
		frame.setTitle(title);
		frame.setVisible(true);

		return frame;
	}

	public void run() {

		isRunning = true;

		int frames = 0;
		long frameCounter = 0;

		double lastTime = Time.getTime();
		double unprocessedTime = 0;

		while(isRunning)
		{
			boolean render = false;

			double startTime = Time.getTime();
			double passedTime = startTime - lastTime;
			lastTime = startTime;

			unprocessedTime += passedTime;
			frameCounter += (long) passedTime;

			if((input.getMouseX()<=2 || input.getMouseX()>=frameSize.width-2) || 
					(input.getMouseY()<=21 || input.getMouseY()>= frameSize.height-2) || drag){
				if(input.getMouse(1)){
					if(!drag){
						m1 = new Point(input.getMouseAbsX(), input.getMouseAbsY());
						drag = true;
					}
						Point f = frame.getLocation();
						Point m2 = new Point(input.getMouseAbsX(), input.getMouseAbsY());
						if(!m2.equals(m1)){
							int xc = m1.x-m2.x;
							int yc = m1.y-m2.y;
							System.out.println("Changed "+ (m1.x-m2.x) + " "+ (m1.y-m2.y));
							frame.setLocation(f.x-xc,f.y-yc);
							m1=m2;
					}
				}else{
					drag = false;
				}
			}else{
				drag = false;
			}


			while(unprocessedTime > frameTime)
			{
				render = true;

				unprocessedTime -= frameTime;

				//if(Window.isCloseRequested())
				//stop();

				input.update((int)frameTime);

				//game.update((float)frameTime);

				if(frameCounter >= 1.0)
				{
					//System.out.println(frames);
					frames = 0;
					frameCounter = 0;
				}
			}
			if(render)
			{
				render();
				frames++;
			}
			else
			{
				try
				{
					Thread.sleep(1);
				}
				catch (InterruptedException e)
				{
					e.printStackTrace();
				}
			}
		}

		//cleanUp();
	}

	public void mouseClick(int b){

	}

	public Graphics2D getGrahics(){

		return null;

	}

	public void render(){

		BufferStrategy bs = getBufferStrategy();
		if(bs == null)
		{
			createBufferStrategy(2);
			return;
		}

		Graphics g1 = bs.getDrawGraphics();
		Graphics2D g = (Graphics2D) g1;

		g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
				RenderingHints.VALUE_ANTIALIAS_ON);
		g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
				RenderingHints.VALUE_INTERPOLATION_BICUBIC);
		g.setColor(Color.WHITE);
		g.fillRect(0, 0, (int) frameSize.getWidth(), (int) frameSize.getHeight());

		g.setColor(Color.BLACK);
		g.drawString(input.mouseAbsToString(), 50, 50);
		g.drawString(input.mouseToString(), 50, 100);
		g.drawString("("+frame.getLocation().getX()+","+frame.getLocation().getY()+")", 50, 150);

		//BORDER--------------------
		g.setColor(Color.BLACK);
		g.fillRect(0, 0, (int) frameSize.getWidth(), 21);
		g.fillRect(0, 0, 2, (int) frameSize.getHeight());
		g.fillRect(0, (int) frameSize.getHeight()-2, (int) frameSize.getWidth(), 2);
		g.fillRect((int) frameSize.getWidth()-2, 0, 2, (int) frameSize.getHeight());
		//TITLE---------------------
		Font arial = Cache.getFont("/Arial/ARIAL.TTF").deriveFont(18.0f);
		g.setFont(arial);
		g.setColor(Color.WHITE);
		g.drawString(title, 10, 18);
		//BUTTONS-------------------
		g.setColor(Color.DARK_GRAY);
		g.fillRect((int) (frameSize.getWidth()-40), 0, 35, 15);
		g.fillRect((int) (frameSize.getWidth()-61), 0, 20, 15);

		g.dispose();
		g1.dispose();
		bs.show();

	}

}