package es.inteco.eni.swing;
   
   import java.io.IOException;
   
   import javax.swing.JOptionPane;
   import javax.swing.JTabbedPane;
   import javax.swing.event.ChangeEvent;
   import javax.swing.event.ChangeListener;
   
  import org.apache.log4j.Logger;
  
  import es.inteco.eni.commons.MessagesHelper;
  import es.inteco.eni.utils.ExceptionUtils;
  import es.inteco.eni.xml.ENIXmlUtils;
  import es.inteco.eni.xml.ValidationXmlResult;
  
  /**
   * Listener que controla la seleccion de una pestaña
   * 
   * 
   *
   */
  public class ChangeTabListener implements ChangeListener{
  	/**
  	 * Log
  	 */
  	private static Logger log = Logger.getLogger(ChangeTabListener.class);
  	/**
  	 * Ventana del validador
  	 */
  	private ENIValidator eniValidator;
  	
  	/**
  	 * Constructor
  	 * @param eniValidator Ventana del validador
  	 */
  	public ChangeTabListener(ENIValidator eniValidator){
  		this.eniValidator = eniValidator;
  	}
  	
  	/**
  	 * 
  	 * @see javax.swing.event.ChangeListener#stateChanged(javax.swing.event.ChangeEvent)
  	 */
  	@Override
  	public void stateChanged(ChangeEvent evt) {
  		JTabbedPane pane = (JTabbedPane)evt.getSource();
  		//Pestaña
  		int selectedTab = pane.getSelectedIndex(); 
  		eniValidator.cleanConsole();
  		eniValidator.getTransformedViewPane().setXmlTree(null);
  		if(selectedTab == ENIValidator.TRANSFORMED_VIEW_TAB_INDEX){
  			//Mensaje "Construyendo..." en la consola
  			eniValidator.appendConsoleMessage(MessagesHelper.getText("eni.view.build.message"));
  			eniValidator.getTransformedViewRadioButton().setSelected(true);
  			//Borra los posibles elementos de la vista transformada y añade la vista en forma de esquema
  			eniValidator.getGraphicViewPanel().removeAll();
  			eniValidator.getGraphicViewPanel().add(eniValidator.getTransformedViewScroll());
  			eniValidator.repaint();
  			
  			new XMLTreeThread(eniValidator).start();
  		}
  		
  	}
  
  	/**
  	 * Thread para construir el arbol a partir del XML
  	 * 
  	 *
  	 */
  	private static final class XMLTreeThread extends Thread {
  		/**
  		 * Ventana del validador
  		 */
  		private ENIValidator eniValidator;
  		
  		/**
  		 * Constructor
  		 * @param eniValidator Ventana del validador
  		 */
  		private XMLTreeThread(ENIValidator eniValidator){
  			this.eniValidator = eniValidator;
  		}
  
  		/**
  		 * 
  		 * @see java.lang.Thread#run()
  		 */
  		@Override
  		public void run() {
  			try{
  				//XML
  				String xmlContent = eniValidator.getXmlContentTextarea().getText();
  				//Valida y constrye el arbol
  				String filePath = eniValidator.getFile()!=null && eniValidator.getParentFile()!=null? eniValidator.getParentFile().getAbsolutePath() : "";
  				ValidationXmlResult validationXmlResult = ENIXmlUtils.validateWithExtXSD(xmlContent, filePath);
  				
  				if(!validationXmlResult.isValidationError()){
  					//Muestra la vista a partir del arbol
 					eniValidator.getTransformedViewPane().setXmlTree(validationXmlResult.getXmlTree());
 					eniValidator.getTreeViewPane().setXmlTree(validationXmlResult.getXmlTree());
 					eniValidator.cleanConsole();
 				}else{
 					//Muestra los errores
 					eniValidator.appendConsoleMessage(MessagesHelper.getText("eni.view.error.message"));
 				}
 				eniValidator.repaint();
 			}catch (IOException ioe) {
 				log.error(ExceptionUtils.stackTraceToString(ioe));
 				JOptionPane.showMessageDialog(eniValidator, 
 						MessagesHelper.getText("eni.load.xml.error.message"),
 						MessagesHelper.getText("eni.load.xml.error.title"),
 						JOptionPane.ERROR_MESSAGE);
 			}
 		}
 	}
 }