import java.io.*;
import java.util.Date;
import java.net.*;
import java.io.IOException;
import java.util.StringTokenizer;

class Failnet {
static String ni;
static String pa;
        public Failnet(String unimi, String uparool){
        ni=unimi;
        pa=uparool;
        }
public static void main(String argumendid[])throws IOException{
 ServerSocket ss=new ServerSocket(5656);
        while(true){
 
        Socket sc=ss.accept();
  

         PrintWriter valja=new PrintWriter(sc.getOutputStream(), true);
         int rarv=ridadearv("fail.txt");
        System.out.println("Valja loodud");
        PrintWriter faili=new PrintWriter(
         new FileWriter("fail.txt",true),true
  );
  
   rarv=rarv+1;
   valja.println("Sinu jarjekorra number on "+rarv );
System.out.println("Valja trykitud");
  BufferedReader sisse=new BufferedReader(
  new InputStreamReader(sc.getInputStream())
   );
   ni=sisse.readLine();
   
  
   if(kasutaja(ni)==false)
   {
   System.out.println("Uus kasutaja");
   valja.println("Kirjuta sa oled uus kasutaja" );
     pa=sisse.readLine();
     faili.println(ni+ " "+pa);}
   else{
   System.out.println("Vana kasutaja");
   valja.println("Sisesta oma parool");
   pa=sisse.readLine();
   if(kasutaja(pa)==false)valja.println("Parool ei ole oige");
   else{valja.println("Nuud sa saad kellaaja teada:"+new Date().getTime());
   }

  
   }

    faili.close();


valja.close();
}
}
  
  static int ridadearv(String failinimi){
    int miturida=0;

    try{
    BufferedReader sisse=new BufferedReader(
      new FileReader(failinimi)
    );
    while(sisse.readLine()!=null)miturida++;
    } catch (Exception probleem){
      miturida=0;
    };
    return miturida;
  }

  static boolean kasutaja(String kasutajanimi){
    boolean onolemas=false;
    String rida="";
    try{
    BufferedReader sisse=new BufferedReader(
      new FileReader("fail.txt")
    );
    while((rida=sisse.readLine())!=null){
    StringTokenizer st=new StringTokenizer(rida, " ");
        while(st.hasMoreTokens()){
              String sona=st.nextToken();
                if(sona.equals(kasutajanimi)){
                    onolemas=true;
                  }
                    }}
          
    } catch (Exception probleem){
      onolemas=false;
    };
    return onolemas;
  }

  }