package bluej.collect;

import javafx.animation.Animation;
import javafx.animation.AnimationTimer;
import javafx.scene.control.Button;
import javafx.scene.control.ButtonType;
import javafx.scene.control.Dialog;
import javafx.scene.control.Label;
import javafx.stage.Modality;

import bluej.Config;
import bluej.utility.Debug;
import threadchecker.OnThread;




| A dialog to be shown in the case that you are running a trial, and
| data collection fails for one of the participants,
|
public class DataSubmissionFailedDialog extends Dialog<Void>{    
   private final AnimationTimer timer;
   
   private final long countdown = 20;

   
   public DataSubmissionFailedDialog()
   {        
      
      initModality(Modality.APPLICATION_MODAL);
      setTitle("Data collection failure");

       
      Label message = new Label("Connection to the data recording server has failed.  Please tell an instructor, and then restart " + (Config.isGreenfoot() ? "Greenfoot" : "BlueJ") + " to reconnect and continue working.");
      message.setWrapText(true);
      message.setPrefWidth(300.0);
      getDialogPane().getButtonTypes().setAll(ButtonType.OK);
      Button ok = (Button)getDialogPane().lookupButton(ButtonType.OK);
      ok.setText("Ok (" + countdown + ")");
      ok.setOnAction(e -> close());
      ok.setDisable(true);

       
      timer = new AnimationTimer()
       {            
         long time = -1;
           
         long prevRemaining = countdown;
           
         @Override
           
         public void handle(long now)
           {
            if (time == -1)
                   
            time = now;
               
            else
               {
               long remaining = countdown - ((now - time) / 1000000000);
               if (prevRemaining == remaining)
                       
               return;
                   
               prevRemaining = remaining;
               if (remaining > 0)
               ok.setText("Ok (" + remaining + ")");
                   
               else
                   {
                  ok.setText("Ok");
                  ok.setDisable(false);
                  stop();                     
                  }                 
               }             
            }         
         };
      
      
      setOnShown(ev -> {
      timer.start();
      ok.getScene().getWindow().setOnCloseRequest(e -> {
      if (ok.isDisable())
      e.consume();             
      });
   });
getDialogPane().setContent(message);     
} 
}