import java.awt.*;
import java.awt.event.*;
import javax.sound.midi.*;
import java.io.*;
public class ksysa extends Frame implements MouseListener, ActionListener{
	protected Color x1=Color.yellow, x2=Color.yellow, x3=Color.yellow, x4=Color.yellow, x5=Color.yellow,
	x6=Color.yellow, x7=Color.yellow, x8=Color.yellow;
	Track track;
	Sequence sequence;
	Synthesizer synthesizer;
	MidiChannel kanal;
	Button alusta, salvesta, ava;
	boolean salvestada=false;
	int p;
	ShortMessage algus;
	ShortMessage kinni;
	ShortMessage lahti;

	//save
	TextArea failid=new TextArea();
	Frame kysim=new Frame();
	Button jah=new Button("Jah");
  	Button tyhista=new Button("Tühista");
	TextField nimi=new TextField("Kirjuta siia faili nimi!");
	
	//open
	TextArea failid2=new TextArea();
	Frame kysim2=new Frame();
   Button jah2=new Button("Jah");
  	Button tyhista2=new Button("Tühista");
	TextField nimi2=new TextField("Kirjuta siia faili nimi!");

	//error
	Frame error=new Frame();
	Button errorjah=new Button("Salvesta ikka");
	Button errorei=new Button("Tühista");

	public ksysa(){
		setSize(500, 300);
		setTitle("Midija");
		addMouseListener(this);
	   alusta=new Button("Alusta");
		salvesta=new Button("Salvesta");
		ava=new Button("Ava");
		setLayout(new BorderLayout());
		Panel paneel=new Panel(new GridLayout(1,3));
		paneel.add(alusta);
		paneel.add(salvesta);
		paneel.add(ava);
		alusta.addActionListener(this);
		salvesta.addActionListener(this);
		ava.addActionListener(this);
		add(paneel, BorderLayout.SOUTH);
		setVisible(true);
		setResizable(false);
		addWindowListener(new aknakuular());

		//save
		kysim.setSize(300,200);
		kysim.setTitle("Kas tahad salvestada?");
		Panel savep=new Panel(new GridLayout(2,1));
		Panel savep2=new Panel(new GridLayout(3,1));
		savep2.setSize(300,90);
		jah.addActionListener(this);
		tyhista.addActionListener(this);
	   savep2.add(nimi);
		savep2.add(jah);
		savep2.add(tyhista);
		savep.setLayout(new BorderLayout());
		savep.add(savep2, BorderLayout.SOUTH);
		savep.add(failid);		
		kysim.add(savep);
		kysim.setResizable(false);
			kysim.addWindowListener(new WindowAdapter(){
   	  		public void windowClosing(WindowEvent e){
      	 	kysim.setVisible(false);
     			}
   		}
	   	);

		//open
		kysim2.setSize(300,200);
		kysim2.setTitle("Kas tahad faili avada?");
		Panel openp=new Panel(new GridLayout(2,1));
		Panel openp2=new Panel(new GridLayout(3,1));
		openp2.setSize(300,90);
		jah2.addActionListener(this);
		tyhista2.addActionListener(this);
	   openp2.add(nimi2);
		openp2.add(jah2);
		openp2.add(tyhista2);
		openp.setLayout(new BorderLayout());
		openp.add(openp2, BorderLayout.SOUTH);
		openp.add(failid2);		
		kysim2.add(openp);
		kysim2.setResizable(false);
			kysim2.addWindowListener(new WindowAdapter(){
   	  		public void windowClosing(WindowEvent e){
      	 	kysim2.setVisible(false);
     			}
   		}
	   	);

		//error
		error.setSize(300,70);
		error.setTitle("Selline fail on juba olemas!!");
		Panel errorp=new Panel(new GridLayout(2,1));
		errorjah.addActionListener(this);
		errorei.addActionListener(this);
		errorp.add(errorjah);
		errorp.add(errorei);
		error.add(errorp);
		error.setResizable(false);
			error.addWindowListener(new WindowAdapter(){
   	  		public void windowClosing(WindowEvent e){
      	 	error.setVisible(false);
     			}
   		}
	   	);


  		try{
			synthesizer=MidiSystem.getSynthesizer();
			synthesizer.open();
			kanal=synthesizer.getChannels()[0];
		}catch(Exception e){}
	}
		
		public void mousePressed(MouseEvent e){
		try{
			int x=e.getX();
			int y=e.getY();
			if(x>100 && x<130 && y>100 && y<200){
				x1=Color.red; x2=Color.yellow; x3=Color.yellow; x4=Color.yellow; x5=Color.yellow; x6=Color.yellow;
				x7=Color.yellow; x8=Color.yellow;
				repaint();
         	new Piiksuja(kanal,60);
	         lisapiiks(60);
			}
			if(x>135 && x<165 && y>100 && y<200){
				x1=Color.yellow; x2=Color.red; x3=Color.yellow; x4=Color.yellow; x5=Color.yellow; x6=Color.yellow;
				x7=Color.yellow; x8=Color.yellow;
				repaint();
         	new Piiksuja(kanal, 62);
				lisapiiks(62);
			}
			if(x>170 && x<200 && y>100 && y<200){
				x1=Color.yellow; x2=Color.yellow; x3=Color.red; x4=Color.yellow; x5=Color.yellow; x6=Color.yellow;
				x7=Color.yellow; x8=Color.yellow;
				repaint();
         	new Piiksuja(kanal, 64);
	         lisapiiks(64);
      	}
			if(x>205 && x<235 && y>100 && y<200){
				x1=Color.yellow; x2=Color.yellow; x3=Color.yellow; x4=Color.red; x5=Color.yellow; x6=Color.yellow;
				x7=Color.yellow; x8=Color.yellow;
				repaint();
         	new Piiksuja(kanal, 65);
	         lisapiiks(65);
			}
			if(x>240 && x<270 && y>100 && y<200){
				x1=Color.yellow; x2=Color.yellow; x3=Color.yellow; x4=Color.yellow; x5=Color.red; x6=Color.yellow;
				x7=Color.yellow; x8=Color.yellow;
				repaint();
         	new Piiksuja(kanal, 67);
	         lisapiiks(67);
			}
			if(x>275 && x<305 && y>100 && y<200){
				x1=Color.yellow; x2=Color.yellow; x3=Color.yellow; x4=Color.yellow; x5=Color.yellow; x6=Color.red;
				x7=Color.yellow; x8=Color.yellow;
				repaint();
         	new Piiksuja(kanal, 69);
	         lisapiiks(69);
			}
			if(x>310 && x<340 && y>100 && y<200){
				x1=Color.yellow; x2=Color.yellow; x3=Color.yellow; x4=Color.yellow; x5=Color.yellow; x6=Color.yellow;
				x7=Color.red; x8=Color.yellow;
				repaint();
				new Piiksuja(kanal,71);
				lisapiiks(71);	
			}
			if(x>345 && x<375 && y>100 && y<200){
				x1=Color.yellow; x2=Color.yellow; x3=Color.yellow; x4=Color.yellow; x5=Color.yellow; x6=Color.yellow;
				x7=Color.yellow; x8=Color.red;
				repaint();
				new Piiksuja(kanal, 72);
				lisapiiks(72);
			}
		}catch(Exception viga  ){}
	  
	}
 	public void mouseReleased(MouseEvent e){}
	public void mouseEntered(MouseEvent e){}	
	public void mouseExited(MouseEvent e){}
	public void mouseClicked(MouseEvent e){}
	
	public void actionPerformed(ActionEvent e){
		try{
			String tulemus="";
			File kataloog=new File("Lood");
			if(!kataloog.isDirectory()){
   			kataloog.mkdir();
			}
			String[] nimed=kataloog.list();
			if(e.getSource()==alusta){
	   		salvestada=true;
		  		ShortMessage algus = new ShortMessage();
				algus.setMessage(ShortMessage.PROGRAM_CHANGE, 0, 16, 0);
				sequence=new Sequence(Sequence.PPQ, 4);
				track=sequence.createTrack();
				track.add(new MidiEvent(algus, 0));
				p=0;
			}
			
			//save
			if(e.getSource()==salvesta){
				for(int i=0; i<nimed.length; i++){
					tulemus=tulemus+nimed[i]+"\n";
				}
				failid.setText(tulemus);
				kysim.setVisible(true);
			}
			if(e.getSource()==jah){
				try{
					String fnimi=nimi.getText();
						for(int i=0; i<nimed.length; i++){
							tulemus=tulemus+nimed[i]+"\n";
						}
						if(tulemus.indexOf(fnimi)>=0){  
							error.setVisible(true);
						}
						else{
							salvestada=false;
							MidiSystem.write(sequence, 1, new FileOutputStream("Lood"+File.separator+fnimi+".mid"));
						}
				}
		      catch(Exception viga){}
		      kysim.setVisible(false);
				}

			if(e.getSource()==tyhista){
		 		kysim.setVisible(false);
		 	}
			
			//open
			
			if(e.getSource()==ava){
				for(int i=0; i<nimed.length; i++){
					tulemus=tulemus+nimed[i]+"\n";
				}
				failid2.setText(tulemus);
				kysim2.setVisible(true);
			}
		
			if(e.getSource()==jah2){
				try{
		  		String fnimi2=nimi2.getText();
				Sequencer sequ=MidiSystem.getSequencer();
				sequ.open();
				sequ.setSequence(MidiSystem.getSequence(new java.io.File("Lood"+File.separator+fnimi2+".mid")));
				sequ.start();
				sequ.setTempoFactor(0.8f);
				}catch(Exception viga){}
					kysim2.setVisible(false);
			}

			if(e.getSource()==tyhista2){
				kysim2.setVisible(false);
			}
			
			//error
			if (e.getSource()==errorjah){
				try{
			  		String fnimi=nimi.getText();
						salvestada=false;
						MidiSystem.write(sequence, 1, new FileOutputStream("Lood"+File.separator+fnimi+".mid"));
	 			}
		      catch(Exception viga){}
		      error.setVisible(false);
			}
			
			if(e.getSource()==errorei){
				error.setVisible(false);
				kysim.setVisible(true);
			} 

		}catch(Exception viga  ){
		  viga.printStackTrace();
		}
   }
   
 	public void lisapiiks(int korgus){
		try{
			if(salvestada==true){
    		ShortMessage kinni = new ShortMessage();
			ShortMessage lahti = new ShortMessage();

				lahti.setMessage(ShortMessage.NOTE_ON, 0, korgus, 93);
				kinni.setMessage(ShortMessage.NOTE_OFF, 0, korgus, 93);
   			track.add(new MidiEvent(lahti, p));
   			track.add(new MidiEvent(kinni, p+2));
 				p=p+3;	
			}
	 	}catch(Exception viga  ){}
	}
	   
	public void paint(Graphics g){ 
		g.setColor(x1);
		g.fillRect(100,100,30,100);
		g.setColor(x2);
		g.fillRect(135,100,30,100);
		g.setColor(x3);
		g.fillRect(170,100,30,100);
		g.setColor(x4);
		g.fillRect(205,100,30,100);
		g.setColor(x5);
		g.fillRect(240,100,30,100);
		g.setColor(x6);
		g.fillRect(275,100,30,100);
		g.setColor(x7);
		g.fillRect(310,100,30,100);
		g.setColor(x8);
		g.fillRect(345,100,30,100);
	}
	public static void main(String argumendid[]){
		new ksysa();
	}
}

class Piiksuja extends Thread{
  MidiChannel kanal;
  int aeg=1000, korgus, valjus=70;
  public Piiksuja(MidiChannel kanal1, int korgus1){
    kanal=kanal1;
    korgus=korgus1;
    start();
  }
  public void run(){
    kanal.noteOn(korgus, valjus);
    try{Thread.sleep(aeg);}catch(Exception e){}
    kanal.noteOff(korgus);
  }
}

class aknakuular extends WindowAdapter{
   public void windowClosing(WindowEvent e){
   System.exit(0);
  	}
}