import javax.swing.*;

import java.net.*;
import java.awt.*;
import java.io.*;
import java.text.DateFormat;
import java.util.*;
public class Server implements Runnable {
  final static int PORT = 4321;
  Socket service;

  public Server () { 
    
	  init();
  }
	  
  


  private void init() {

	
	 
	  
    try {
    	
    
    
    
    	Dimension dimScrean = Toolkit.getDefaultToolkit().getScreenSize();
    	JFrame server = new JFrame("server");
    	server.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    	Rectangle bounds = new Rectangle();
    	bounds.x = dimScrean.width / 2 - server.getWidth() / 2;
    	bounds.y = dimScrean.height = server.getHeight();
    	server.setBounds(bounds);
    	server.setVisible(true);
      // préparation du serveur
      // réseau
      ServerSocket ecoute = new ServerSocket(PORT);

      while (true) {
        service = ecoute.accept();
        Thread t = new Thread(this);
        t.start();
      }


    }
  
    catch (BindException be) {
    	System.err.println("Le serveur a quitter car un autre et déjà en utilisation");
    	System.exit(-1);
    }  
    catch (IOException ioe) {
      System.err.println(("Problème au niveau du serveur : "+ ioe.getMessage()) );
      ioe.printStackTrace();
    }



  }



  /**
   * Cette méthode créer et formate la date du jour
   @return String
   */
  private String formateDate() {
	  TimeZone tz =  TimeZone.getTimeZone("Europe/Paris");
   	  
    Calendar calendar = Calendar.getInstance(tz);
    Date date = new Date();
        TimeZone.setDefault(TimeZone.getTimeZone("Europe/Paris"));
        calendar.setTime(date);
        DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, Locale.FRENCH);
    
	return ("ErrorReport_"+df.format(date)+" "+calendar.get(Calendar.HOUR_OF_DAY)+'_'+calendar.get(Calendar.MINUTE)+'_'+ calendar.get(Calendar.SECOND)+".txt").replace('/', '_');
 
 
  }

  public void run () {
    	File fileErrorOutput = new File (formateDate());
    	FileOutputStream fileError = null;
    	PrintStream fosErrorSender = null;
    try {
      // acceper la requête

      BufferedReader rd = new BufferedReader(new InputStreamReader(service.
          getInputStream()));
      String str = null;

        fileError = new FileOutputStream(fileErrorOutput);
        fosErrorSender = new PrintStream(new BufferedOutputStream(
            fileError));
      System.out.println("Nouvelle connection : " +
                                        fileErrorOutput.getName());
      while (true) {
        while ( (str = rd.readLine()) != null) {
          System.out.println("Nouveau message d'erreur +" +
                                         fileErrorOutput.getName());
          fosErrorSender.println(str);
          System.out.println(str);
          fosErrorSender.flush();
        }
        fosErrorSender.close();
        
        fileError.close();

        if (fileErrorOutput.exists() && fileErrorOutput.length() == 0) { // aucune erreur n'est survenue
        fileErrorOutput.delete();
        	System.out.println("Le fichier a été supprimé");
        }
        
      }
    } 
    catch (FileNotFoundException fnfe) {
		System.err.println("Erreur lors de la suppression du fichier : "+fileErrorOutput.getName());
		fnfe.printStackTrace();
    }
    catch (IOException ioe) {
        System.out.println("Le client a quitté : "+formateDate());   
        if (! ioe.getMessage().contains("reset"))
        ioe.printStackTrace();  
   }
  }

  
  public static void main (String [] args) {
    new Server();
  }

}