/*
 * Copyright 2011 by Graz University of Technology, Austria
 * MOCCA has been developed by the E-Government Innovation Center EGIZ, a joint
 * initiative of the Federal Chancellery Austria and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 */


package at.gv.egiz.bku.local.stal;

import at.gv.egiz.bku.viewer.ResourceFontLoader;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Locale;


import at.gv.egiz.bku.conf.MoccaConfigurationFacade;
import at.gv.egiz.bku.gui.BKUGUIFacade;
import at.gv.egiz.bku.gui.BKUIcons;
import at.gv.egiz.bku.gui.PINManagementGUI;
import at.gv.egiz.bku.gui.PINManagementGUIFacade;
import at.gv.egiz.bku.local.gui.GUIProxy;
import at.gv.egiz.bku.local.gui.LocalHelpListener;
import at.gv.egiz.smcc.util.SMCCHelper;
import at.gv.egiz.stal.STAL;
import at.gv.egiz.stal.STALFactory;
import javax.swing.JFrame;

import org.apache.commons.configuration.Configuration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Creates a PINManagementGUI and a LocalBKUWorker, which in turn registers
 * PINManagementRequestHandler from smccSTALExt.
 * The RequestHandler expects PINManagementGUIFacade, therefore BKUGUIProxy has to implement the extended GUI.
 * @author clemens
 */
public class LocalSTALFactory implements STALFactory {

  private final Logger log = LoggerFactory.getLogger(LocalSTALFactory.class);
  protected static final Dimension PREFERRED_SIZE = new Dimension(318, 250);
  protected URL helpURL;
  protected Locale locale;
  
  protected Configuration configuration;
  
	/**
	 * The configuration facade used to access the MOCCA configuration.
	 */
	protected ConfigurationFacade configurationFacade = new ConfigurationFacade();

	public class ConfigurationFacade implements MoccaConfigurationFacade {

		public static final String USE_SWCARD = "UseSWCard";

		public boolean getUseSWCard() {
			if (configuration == null)
				return false;
			else
				return configuration.getBoolean(USE_SWCARD, false);
		}
	}

  @Override
  public STAL createSTAL() {

    final LocalBKUWorker stal;
    //http://java.sun.com/docs/books/tutorial/uiswing/misc/focus.html
    // use undecorated JFrame instead of JWindow,
    // which creates an invisible owning frame and therefore cannot getFocusInWindow()
    JFrame dialog = new JFrame("Bürgerkarte");
    log.debug("AlwaysOnTop supported: {}.", dialog.isAlwaysOnTopSupported());
    // [#439] make mocca dialog alwaysOnTop
    dialog.setAlwaysOnTop(true);
    dialog.setIconImages(BKUIcons.icons);
//    dialog.setUndecorated(true);
//    dialog.getRootPane().setWindowDecorationStyle(JRootPane.NONE);

    if (locale != null) {
      dialog.setLocale(locale);
    }
    LocalHelpListener helpListener = null;
    if (helpURL != null) {
      helpListener = new LocalHelpListener(helpURL, locale);
    } else {
      log.warn("No HELP URL configured, help system disabled.");
    }
    PINManagementGUIFacade gui = new PINManagementGUI(dialog.getContentPane(),
            dialog.getLocale(),
            null,
            new ResourceFontLoader(),
            helpListener);
    BKUGUIFacade proxy = (BKUGUIFacade) GUIProxy.newInstance(gui, dialog, new Class[] { PINManagementGUIFacade.class} );
    SMCCHelper.setUseSWCard(configurationFacade.getUseSWCard());
    stal = new LocalBKUWorker(proxy, dialog);
    dialog.setPreferredSize(PREFERRED_SIZE);
    dialog.pack();
    Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    Dimension frameSize = dialog.getSize();
    if (frameSize.height > screenSize.height) {
      frameSize.height = screenSize.height;
    }
    if (frameSize.width > screenSize.width) {
      frameSize.width = screenSize.width;
    }
    dialog.setLocation((screenSize.width - frameSize.width) / 2,
            (screenSize.height - frameSize.height) / 2);
    return stal;
  }

  @Override
  public void setLocale(Locale locale) {
    this.locale = locale;
  }

  /**
   * spring injects helpURL
   * @param helpURL
   * @throws MalformedURLException if helpURL is not a valid URL
   */
  public void setHelpURL(String helpURL) throws MalformedURLException {
    this.helpURL = new URL(helpURL);
  }

  /**
   * @return the configuration
   */
  public Configuration getConfiguration() {
    return configuration;
  }

  /**
   * @param configuration the configuration to set
   */
  public void setConfiguration(Configuration configuration) {
    this.configuration = configuration;
  }
  
}