import inria.meije.rc.sugarcubes.SC;
import inria.meije.rc.sugarcubes.Program;
import inria.meije.rc.sugarcubes.Machine;
import inria.meije.rc.sugarcubes.LocalVariables;
import inria.meije.rc.sugarcubes.ReactiveEngine;
import inria.meije.rc.sugarcubes.JavaAction;
import inria.meije.rc.sugarcubes.StringID;
import inria.meije.rc.sugarcubes.JavaObjectExpression;

import java.awt.*;
import java.awt.event.*;

//This is a more complicated HelloWorld example which uses a cube.

class HelloCube
{
   public static Machine machine = SC.voidMachine();

   public static void main(String[] args){
//First, one makes a program that will be the behavior of the cube.
      Program windowBehavior = SC.seq(SC.seq(SC.action(new HC_ShowWindow()),SC.await("hello")),
                                   SC.action(new HC_DisplayHello()),SC.halt());
//One makes a cube of name 'HelloWorldWindow', which uses windowBehavior as behavior.
//One adds this cube into the machine.
      machine.addProgram(SC.cube("HelloWorldWindow",new HC_BuildFrameExpression(),windowBehavior,
                                new HC_Dispose(),SC.NO_ACTION,SC.NO_ACTION));
//As usual, one makes react the machine.
      int i = 1;
      do{  
         try{Thread.sleep(100);}catch(Exception e){}
         System.out.println("instant "+(i++)+": "); 
      }while(!machine.react());
//exit
      System.exit(0);
   }

}

class MyFrame extends Frame
{
    Button generateHelloBtn = new Button("Generate 'hello'");
}

class HC_BuildFrameExpression implements JavaObjectExpression
{
    public Object evaluate(Object parent,LocalVariables vars,ReactiveEngine engine){
      MyFrame f = new MyFrame();
      f.addWindowListener(
                new WindowAdapter(){
                    public void windowClosing(WindowEvent evt){
                        HelloCube.machine.generateEvent(new StringID("HelloWorldWindow-destroy"),null);
                    }
                }
            );
      f.generateHelloBtn.addActionListener(
                new ActionListener(){
                    public void actionPerformed(ActionEvent evt){
                        HelloCube.machine.generateEvent(new StringID("hello"),null);
                    }
                }
            );
      f.add("Center",f.generateHelloBtn);
      return f;
    }
}

class HC_FrameAction implements JavaAction
{
    public void execute(Object self,LocalVariables vars,ReactiveEngine engine){
        execute((Frame)self);
    }
    public void execute(Frame self){}
}

class HC_ShowWindow extends HC_FrameAction
{
    public void execute(Frame self){
        self.setVisible(true);
    }
}

class HC_HideWindow extends HC_FrameAction
{
    public void execute(Frame self){
        self.setVisible(false);
    }
}

class HC_DisplayHello extends HC_FrameAction
{
    public void execute(Frame self){
        self.setTitle("Hello World!");
    }
}

class HC_Dispose extends HC_FrameAction
{
    public void execute(Frame self){
        self.dispose();
    }
}