import java.io.*;
import java.awt.Frame;
import java.awt.event.*;
import java.awt.*;
import java.util.*;
import java.io.RandomAccessFile;
import java.net.*;
import javax.swing.*;
import javax.swing.event.*;

public class Opilased{
    static Frame f;
  
    static Panel p2;
    static Panel p1;
  
    static Button search;
    static Button certificate;
    static Button add;
    static Button change;
    static Button delete;
    static Button clear;
    static Button help;
	
    static TextField name; 
    static TextField surname;      	
    static TextField grade;
    static TextField birth;
    static TextField id;
    static TextField gender;
    static TextField street;
    static TextField house;
    static TextField apartment;
    static TextField city;
    static TextField municipality;
    static TextField village;

    static TextArea status;

	 static int numberCt;
	
public static void main(String argumendid[]){
    kujundus(); 
    f.addWindowListener(new CloseWindow());
}

public static void kujundus(){
    f=new Frame("Kooli õpilaste andmebaas");

//Paneelis p1 paiknevad akna paremas servas olevad nupud:	
//search - õpilase otsimine
//certificate - tõendi väljatrükk
//add - õpilase lisamine
//change - õpilase kirje muutmine
//delete - õpilase kustutamine
//clear - väljade puhastamine
//help - avab brauseris abiinfofaili (HTML)

p1=new Panel(new GridLayout(7, 1));
    search=new Button("Otsimine");
        search.addActionListener(new act());
    certificate=new Button("Tõend");
        certificate.addActionListener(new act());
    add=new Button("Lisamine");
        add.addActionListener(new act());
	add.addActionListener(new Clear());
    change=new Button("Muutmine");
	change.addActionListener(new act());
	add.addActionListener(new Clear());
    delete=new Button("Kustutamine");
        delete.addActionListener(new act());
	add.addActionListener(new Clear());
    clear=new Button("Puhasta väljad");
        clear.addActionListener(new Clear());
    help=new Button("Abiinfo");
        help.addActionListener(new Help());
    p1.add(search);
    p1.add(certificate);
    p1.add(add);
    p1.add(change);
    p1.add(delete);
    p1.add(clear);
    p1.add(help);

//Kirjeldatakse ära tekstiväljad

Panel p2=new Panel(new GridLayout(12, 2));
    name=new TextField("", 15);
    surname=new TextField("", 15);
    grade=new TextField("", 4);
    birth=new TextField("", 10);
    id=new TextField("", 11);
    gender=new TextField("", 1);
    street=new TextField("", 15);
    house=new TextField("", 3);
    apartment=new TextField("", 3);
    city=new TextField("", 15);
    municipality=new TextField("", 15);
    village=new TextField("", 15);

//Lisatakse tekstiväljad ja sildid

p2.add(new Label(" Eesnimi"));
    Panel p2a=new Panel(new FlowLayout());
    p2a.add(name);
    p2.add(p2a);
p2.add(new Label(" Perekonnanimi"));
    Panel p2b=new Panel(new FlowLayout());
    p2b.add(surname);
    p2.add(p2b);
p2.add(new Label(" Klass"));
    Panel p2c1=new Panel(new BorderLayout());
    Panel p2c=new Panel(new FlowLayout());
    p2c.add(grade);
    p2c1.add("West", p2c);
    p2.add(p2c1);
    grade.addTextListener(new LengthControl());
p2.add(new Label(" Sünniaeg"));
    Panel p2d1=new Panel(new BorderLayout());
    Panel p2d=new Panel(new FlowLayout());
	 p2d.add(birth);
    p2d1.add("West", p2d);
    p2.add(p2d1);
    birth.addTextListener(new LengthControl());
p2.add(new Label(" Isikukood"));
    Panel p2e1=new Panel(new BorderLayout());
    Panel p2e=new Panel(new FlowLayout());
    p2e.add(id);
    p2e1.add("West", p2e);
    p2.add(p2e1);
    id.addTextListener(new LengthControl());
p2.add(new Label(" Sugu"));
    Panel p2f1=new Panel(new BorderLayout());
    Panel p2f=new Panel(new FlowLayout());
    p2f.add(gender);
    p2f1.add("West", p2f);
    p2.add(p2f1);
    gender.addTextListener(new LengthControl());
p2.add(new Label(" Tänav"));
    Panel p2g=new Panel(new FlowLayout());
    p2g.add(street);
    p2.add(p2g);
p2.add(new Label(" Maja nr."));
    Panel p2h1=new Panel(new BorderLayout());
    Panel p2h=new Panel(new FlowLayout());
    p2h.add(house);
    p2h1.add("West", p2h);
    p2.add(p2h1);
    house.addTextListener(new LengthControl());
p2.add(new Label(" Korteri nr."));
    Panel p2i1=new Panel(new BorderLayout());
    Panel p2i=new Panel(new FlowLayout());
    p2i.add(apartment);
    p2i1.add("West", p2i);
    p2.add(p2i1);
    apartment.addTextListener(new LengthControl());
p2.add(new Label(" Linn/maakond"));
    Panel p2j=new Panel(new FlowLayout());
    p2j.add(city);
    p2.add(p2j);
p2.add(new Label(" Linnaosa/vald"));
    Panel p2k=new Panel(new FlowLayout());
    p2k.add(municipality);
    p2.add(p2k);
p2.add(new Label(" Küla/asula"));
    Panel p2l=new Panel(new FlowLayout());
    p2l.add(village);
    p2.add(p2l);

// Luuaks olekukast
status=new TextArea("", 3, 40, TextArea.SCROLLBARS_VERTICAL_ONLY);

//Paneeli p3 pannakse paneelid p1 (nupud) ja p2 (sildid
//ning väljad). Paneel lisatakse freimi ja luuakse aken.

Panel p3=new Panel(new BorderLayout());
    p3.add("East", p1);
    p3.add("West", p2);
    p3.add("South", status);

f.add(p3);
f.setSize(384, 421);
f.setVisible(true);
} //end void kujundus
	
} //end class opilased


//Puhastab kõik tekstiväljad ekraanil

class Clear implements ActionListener{
    public void actionPerformed (ActionEvent evt){
	     Opilased.name.setText("");
	     Opilased.surname.setText("");
	     Opilased.grade.setText("");
	     Opilased.birth.setText("");
	     Opilased.id.setText("");
	     Opilased.gender.setText("");
	     Opilased.street.setText("");
	     Opilased.house.setText("");
	     Opilased.apartment.setText("");
	     Opilased.city.setText("");
	     Opilased.municipality.setText("");
	     Opilased.village.setText("");
	     //Opilased.status.setText("");
    }
}


// Avab brauseris abifaili HTML kujul

class Help implements ActionListener{
    public void actionPerformed (ActionEvent evt){
      try{
        URL u=new File("help.htm").toURL();
        JFrame f=new JFrame("Abiinfo");
        final JEditorPane jp=new JEditorPane(u);
        jp.setEditable(false);
        f.getContentPane().add(jp);
        // Dimension d=Toolkit.getDefaultToolkit().getScreenSize();
        // f.setSize(d.width, d.height);
        f.setSize(600, 400);

        f.setVisible(true);
        jp.addHyperlinkListener(
          new HyperlinkListener(){
            public void hyperlinkUpdate(HyperlinkEvent e){
             if(e.getEventType()==HyperlinkEvent.EventType.ACTIVATED){
              try{
               jp.setPage(e.getURL());
              }catch(IOException ex){
               Opilased.status.setText(ex.toString());
              }
             }
            }
          }
        );
      }catch(IOException ex){
        Opilased.status.setText(ex.toString());
      }
   }
}

class LengthControl implements TextListener{
    public void textValueChanged(TextEvent e){
        if(Opilased.grade.getText().length()>4){
            Opilased.grade.setText(
            Opilased.grade.getText().substring(0, 4)
            );
        }
        if(Opilased.birth.getText().length()>10){
            Opilased.birth.setText(
            Opilased.birth.getText().substring(0, 10)
            );
        }
        if(Opilased.id.getText().length()>11){
            Opilased.id.setText(
            Opilased.id.getText().substring(0, 11)
            );
        }
        if(Opilased.gender.getText().length()>1){
            Opilased.gender.setText(
            Opilased.gender.getText().substring(0, 1)
            );
        }
        if(Opilased.gender.getText().equals("m")){
            Opilased.gender.setText(
            Opilased.gender.getText().toUpperCase()
            );
        }
        if(Opilased.gender.getText().equals("n")){
            Opilased.gender.setText(
            Opilased.gender.getText().toUpperCase()
            );
        }
        if(Opilased.house.getText().length()>3){
            Opilased.house.setText(
            Opilased.house.getText().substring(0, 3)
            );
        }
        if(Opilased.apartment.getText().length()>3){
            Opilased.apartment.setText(
            Opilased.apartment.getText().substring(0, 3)
            );
        }
    }
}


class CloseWindow extends WindowAdapter{
    public void windowClosing(WindowEvent e){
        Opilased.status.setText("End of program");
        System.exit(0);
    }
}


class act implements ActionListener{
	public void actionPerformed (ActionEvent evt){
		opilane op1;
		String s= evt.getActionCommand();
			op1=new opilane();
				op1.surname=Opilased.surname.getText();
				op1.name=Opilased.name.getText();
				op1.grade=Opilased.grade.getText();
				op1.birth=Opilased.birth.getText();
				op1.id=Opilased.id.getText();		
				op1.gender=Opilased.gender.getText();
				op1.street=Opilased.street.getText();
				op1.house=Opilased.house.getText();
		      op1.apartment=Opilased.apartment.getText();
				op1.city=Opilased.city.getText();
				op1.municipality=Opilased.municipality.getText();
				op1.village=Opilased.village.getText();
			if(s.equals("Otsimine")){
	          SearchFrame.main(new String[0]);
				}
			else if(s.equals("Lisamine")){
			  // System.out.println(Opilased.status);
			   Opilased.status.setText("Toimub õpilase lisamine! Palun oota...");
			 //  System.out.println("Status: "+Opilased.status.getText());
			  	Save.SaveOp(op1);	
				}	
			else if(s.equals("Kustutamine")){
			   Opilased.status.setText("Toimub õpilase kustutamine! Palun oota...");
				opDelete.DeleteOP(op1);
				}
			else if(s.equals("Muutmine")){
			   Opilased.status.setText("Toimub õpilase muutmine! Palun oota...");
				opDelete.DeleteOP(op1);
				Save.SaveOp(op1);
				}
			else if(s.equals("Tõend")){
			      Opilased.status.setText("Toimub andmete printimine! Palun oota...");
					ToendPrint tp = new ToendPrint();
					tp.departmentText = "KAASIKU MAAKONNA HARIDUSOSAKOND";
					tp.schoolHeaderText = "KALMKÜLA KOLMAS KESKKOOL";
					tp.nameText = Opilased.name.getText();
					tp.surnameText = Opilased.surname.getText();
					tp.schoolText = "Kalmküla 3. Keskkoolis";

					tp.gradeText = Opilased.grade.getText() + ".";
		
					tp.birthDate = Opilased.birth.getText();
					tp.addressText = "Vana-Siili 2, Kalmküla, 10224 Tel. +372 8244 423";
		
					tp.init();
					tp.doPrint();

				}
   	}//void
} //actionlistener



class Save{
	public static void SaveOp(opilane op){
		long cnt;
		RandomAccessFile result;      
		TextReader data;         
		char s;
		boolean b;
		
	//	System.out.println ("Toimub õpilase lisamine! Palun oota...");  
		b = onOlemas(op);
		if (b==false){
		try {  	
		result = new RandomAccessFile("result.dat","rw");
         		}
		catch (IOException e) {
               		Opilased.status.setText("Can't open file result.dat!");
               		Opilased.status.setText(e.toString());
               		return;  // end the program            
		        }
		cnt = 0;
		
	
		try{
			for(cnt=0;true;cnt++){
				result.seek(cnt);
				b=result.readBoolean();
				}//for
		}//try	

	   catch (EOFException e) {
		      System.out.println("EOF");
        		}//catch						
		catch (IOException e) {
        		Opilased.status.setText("Can't open file result.dat!");
           	Opilased.status.setText(e.toString());
       		return;  // end the program            
		     	}	
		
		
		try {  
			result.writeBytes(op.surname+'!'+op.name+'!'+op.grade+'!'+op.birth+'!'+
				op.id+'!'+op.gender+'!'+op.street+'!'+op.house+'!'+op.apartment+'!'+
				op.city+'!'+op.municipality+'!'+op.village+'!'+'#');
         		result.close();
			Opilased.status.setText("Õpilane on sisestatud!");
			}
		catch (IOException e) {
               	Opilased.status.setText("Can't open file result.dat!");
               	Opilased.status.setText(e.toString());
		               
               		return;  // end the program            
		            }
		}
	else Opilased.status.setText("On Juba olemas!");
		}

	public static boolean onOlemas(opilane op){
		int numberCt;
		String s = op.id;
		TextReader data;         // character input stream for reading data
		boolean olemas;
	        try {  // create the input stream
              	data = new TextReader(new FileReader("result.dat"));            
					olemas = setSeek(data,s);
					}//try
        
	    	catch (FileNotFoundException e) {
               Opilased.status.setText("Can't find file result.dat!");
              	return true;  // end the program by returning from main()            
					}//catch       
		
		
      data.close();             
				
		return olemas;//ssss
		}//boolean


	public static String Find(TextReader data){
		int tabCnt =0;
		TextReader data1;         // character input stream for reading data
		char a=' ';
		char b=' ';
		String id="";
		data1 = data;
	
		try {            
         while (a!='#') {  // read to end-of-file
           	a = data1.getChar();
				if (a=='!'){
					tabCnt++;
					if (tabCnt==4){	
						while (b!='!'){
							b = data1.getChar();				
							if (b!='!')id=id+b;
							}//while
						return id;
						}//if	
					}//if			
			}//while
		}//try
		catch (TextReader.Error e) {
			return id;
             		}
           	catch (IndexOutOfBoundsException e) {
                	Opilased.status.setText("Too many numbers in data file.");
                	Opilased.status.setText("Processing has been aborted.");
             		}
		return id;
		}
		




	public static boolean setSeek(TextReader data,String s){

		int tabCnt=0;
		TextReader data1;         // character input stream for reading data
		char a=' ';
		char b=' ';
		String id="";
		Opilased.numberCt = 1;
		
		TextReader data2 = data;
			String s1=s;
			String seek1;
			seek1=Find(data2);
			boolean s2= false;
			if (seek1.equalsIgnoreCase(s)) {
				s2=true;
				return s2;
				}//if
			else {	
				try {         
          		while ( (!data2.eof() ) | (s2==true) ) {  // read to end-of-file
           			a = data2.getChar();
					if (a=='#'){
						seek1=Find(data2);
						Opilased.numberCt++;
						if (seek1.equalsIgnoreCase(s)){
							s2=true;
							return s2;
						}//if
				   }//if       
					}//while
				} //try
				catch (TextReader.Error e) {
                			Opilased.status.setText("sisend error: " + e.getMessage());
             				}
           			catch (IndexOutOfBoundsException e) {
                			Opilased.status.setText("Too many numbers in data file.");
                			Opilased.status.setText("Processing has been aborted.");
             				}
		
			}//else
			return s2;//qqqq
		}
		

}	//save



class opDelete{

	public static void DeleteOP(opilane op){

		int mitmes=1;
		char x=' ';
	   RandomAccessFile result1;
	   RandomAccessFile result2;
	   boolean d=false;
		boolean trell=false;
		
		   d = OlemasDelete(op);
			if (d==false){
					Opilased.status.setText("Antud õpilast ei eksisteeri!");
			} //if
			else {
				try { 
					result1 = new RandomAccessFile("result.dat","r");
					result2 = new RandomAccessFile("temp.dat","rw");
					try { 
					while ( x!='$' ) {  
						x = (char)result1.readByte();
						trell = false;
					if (x=='#'){
						mitmes++;
						trell = true;
						} //if					
					if( (mitmes!=Opilased.numberCt) | ( (mitmes!=Opilased.numberCt) & (trell==true) ) ){
						result2.writeByte((byte)x);
						}//if
					}//while
					}//try
					
					catch (EOFException e) {
							} //catch

					result1.close();	
					result2.close();
					File oldfile=new File("result.dat");
					oldfile.delete();
					File tempfile=new File("temp.dat");
					tempfile.renameTo(oldfile);
					Opilased.status.setText("Õpilane on kustutatud!");
        			} //try
			
				catch (IOException e) {
               		Opilased.status.setText("Can't open file result.dat!");
               		Opilased.status.setText(e.toString());
               		return;  // end the program            
		            }//catch
				} //else
	}//void
	
	public static boolean OlemasDelete(opilane op){ 
		int numberCt;
		String s = op.id;
		TextReader data;         // character input stream for reading data
		boolean olemas;
	      try {  // create the input stream
            data = new TextReader(new FileReader("result.dat"));            
				olemas =Save.setSeek(data,s);
			}//try
        
	    	catch (FileNotFoundException e) {
             Opilased.status.setText("Can't find file result.dat!");
             return true;  // end the program by returning from main()            
			}//catch
			   
        	data.close();             
			return olemas;

	}//boolean
}//class