import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.rms.*;
import java.io.*;
import java.util.*;



public class proov3 extends MIDlet implements CommandListener{
  
  Command c1=new Command("Välju", Command.EXIT, 1);
  Command c2=new Command("Skoorid", Command.SCREEN, 1);
  
  //Canvas louend=new Louend4();
  Louend4 louend=new Louend4();
  
  String hoidlanimi="hoidla1";
  RecordStore rs;
  RecordEnumeration re;
  ValikuVorm valik=new ValikuVorm();

  
  public proov3(){
    louend.addCommand(c1);
    louend.addCommand(c2);
    louend.setCommandListener(this);
    Display.getDisplay(this).setCurrent(louend);
    	try{
     	rs=RecordStore.openRecordStore(hoidlanimi, true);
     	re=rs.enumerateRecords(null, null, true);
    	}catch(Exception e){teade(e.getMessage());}
  }

 
  protected void startApp() throws MIDletStateChangeException{   
  Display.getDisplay(this).setCurrent(louend);
  }
  protected void pauseApp(){}
  protected void destroyApp(boolean kohustus) throws MIDletStateChangeException{
    	try{
      	rs.closeRecordStore();
    	} catch (Exception e){teade(e.getMessage());} 
  }
  
  
   void teade(String teade){
    Alert a=new Alert("Teade", teade, null, AlertType.CONFIRMATION);
    a.setTimeout(5);
    Display.getDisplay(this).setCurrent(a);
  }
  
  public void commandAction(Command c, Displayable d){
   	try{
    	if(c==c1){
    	notifyDestroyed();
    	}   
    
    	if(c==c2){
    	Display.getDisplay(proov3.this).setCurrent(valik);	
    	}  
    
    }catch(Exception e){
     teade(e.getMessage());
    }
 }
  
  
  
  class ValikuVorm extends List implements CommandListener{
     LisamisVorm lisamine=new LisamisVorm(this);
     VaatamisVorm vaatamine=new VaatamisVorm(this);
     Command ava=new Command("Ava", Command.SCREEN, 1);
     Command valju=new Command("Välju", Command.EXIT, 1);
     
     ValikuVorm(){
       super("Tegevuse valik", List.IMPLICIT);
       append("Salvesta", null);
       append("Vaata", null);
       setSelectCommand(ava);
       addCommand(valju);
       addCommand(ava);
       setCommandListener(this);
     }
     
     
     public void commandAction(Command c, Displayable d){
       		
       		if(c==valju){
          	notifyDestroyed();
       		}
       		
       		if(c==ava){
         		if(getSelectedIndex()==0){
           		Display.getDisplay(proov3.this).setCurrent(lisamine);
           		System.out.println(louend.punkte);
         		}
         		if(getSelectedIndex()==1){
           		Display.getDisplay(proov3.this).setCurrent(vaatamine);
         		}
       		}
       		
     } //public void commandAction-->lopp
  } //ValikuVorm extends-->lopp
  
  
  
  
  
  
  class LisamisVorm extends Form implements CommandListener{
  TextField tfnimi=new TextField("Eesnimi", "", 20, TextField.ANY);
  //StringItem punktid=new StringItem("Punkte", "0");
  Command c3=new Command("Salvesta", Command.SCREEN, 1);
  Command c4=new Command("Edasi", Command.SCREEN, 1);
  Command yles=new Command("Üles", Command.EXIT, 1);
    Displayable avaja;
    
    LisamisVorm(Displayable avaja){
       super("Lisamine");
       this.avaja=avaja;
        append(tfnimi);
        //append(punktid);
        addCommand(c3);
        //addCommand(c4);
        addCommand(yles);
       setCommandListener(this);
    }
    
    public void commandAction(Command c, Displayable d){
      
      	if(c==yles){
        Display.getDisplay(proov3.this).setCurrent(avaja);
      	}
      	
      	if(c==c3){
        lisaKirje();
        Display.getDisplay(proov3.this).setCurrent(avaja);
      	}
   	}
   
   
   
    void lisaKirje(){
    byte[] bm=leiaBaidiMassiiv();
     try{
     	rs.addRecord(bm, 0, bm.length);
     	tfnimi.setString("");
    	}catch(Exception e){
      	teade(e.getMessage());
    	}
  	}
  	
  	
   byte[] leiaBaidiMassiiv(){
   ByteArrayOutputStream bos=new ByteArrayOutputStream();
   DataOutputStream dos=new DataOutputStream(bos);
   	try{
    	dos.writeUTF(tfnimi.getString() +"     "+ (String.valueOf(louend.punkte))+ "      "+(String.valueOf(louend.aeg/1000)));
   		}catch(Exception e){teade(e.getMessage());}
   		return bos.toByteArray();
  		}
  
   } 
 
 
 
  class VaatamisVorm extends Form implements CommandListener{
    StringItem snimi=new StringItem("Nimi", "");
    
    Command edasi=new Command("Edasi", Command.SCREEN, 1);
    Command tagasi=new Command("Tagasi", Command.SCREEN, 1);
    Command yles=new Command("Üles", Command.BACK, 1);
    Displayable avaja;
    
    VaatamisVorm(Displayable avaja){
       super("Vaatamine");
       this.avaja=avaja;
       append(snimi);
       addCommand(edasi);
       addCommand(tagasi);
       addCommand(yles);
       setCommandListener(this);
    }
    
    public void commandAction(Command c, Displayable d){
     try{
      		if(c==yles){
        	Display.getDisplay(proov3.this).setCurrent(avaja);
      		}
      		
      		if(c==edasi){
       			if(re.hasNextElement()){
        		loeBaidiMassiivist(re.nextRecord());
       			}
      		}
      		
      		if(c==tagasi){
        		if(re.hasPreviousElement()){
          		loeBaidiMassiivist(re.previousRecord());
        		}
      		}
     }catch(Exception e){
       teade(e.getMessage());
     }
    } 
    
    
        
     void loeBaidiMassiivist(byte[] b){
     	try{
     	DataInputStream dis=new DataInputStream(new ByteArrayInputStream(b));
     	snimi.setText(dis.readUTF());
     	}catch(IOException e){
       	teade(e.getMessage());
     	}
    }
  
 }  //class VaatamisVorm-->lopp
  
  
}  //public class proov3-->lopp