/*
    * Copyright 2010 James Pether Sörling
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *   http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   *	$Id: CitizenIntelligenceAgency.java 5582 2012-01-04 20:03:13Z pether $
   *  $HeadURL: https://cia.svn.sourceforge.net/svnroot/cia/trunk/citizen-intelligence-agency/src/main/java/com/hack23/cia/web/impl/ui/application/CitizenIntelligenceAgency.java $
   */
  package com.hack23.cia.web.impl.ui.application;
  
  import java.util.Locale;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.beans.factory.annotation.Qualifier;
  import org.springframework.context.annotation.Scope;
  import org.springframework.context.i18n.LocaleContextHolder;
  import org.springframework.security.access.AccessDeniedException;
  import org.springframework.security.core.context.SecurityContextHolder;
  import org.springframework.stereotype.Component;
  import org.vaadin.navigator7.NavigableApplication;
  import org.vaadin.navigator7.window.NavigableAppLevelWindow;
  
  import com.google.gwt.language.client.translation.Language;
  import com.hack23.cia.service.api.ApplicationManager;
  import com.hack23.cia.service.api.ConfigurationManager;
  import com.hack23.cia.web.impl.ui.common.ApplicationUserState;
  import com.hack23.cia.web.impl.ui.common.ApplicationUserStateHolder;
  import com.vaadin.Application;
  import com.vaadin.service.ApplicationContext;
  import com.vaadin.ui.Window.Notification;
  
  /**
   * The Class CitizenIntelligenceAgency.
   */
  @Component(value = "citizenIntelligenceAgency")
  @Scope(value = "prototype")
  public final class CitizenIntelligenceAgency extends NavigableApplication
  		implements ApplicationContext.TransactionListener, ApplicationUserState {
  
  	/** The Constant serialVersionUID. */
  	private static final long serialVersionUID = 1L;
  
  	/** The Constant LOGGER. */
  	private final static Logger LOGGER = LoggerFactory
  			.getLogger(CitizenIntelligenceAgency.class);
  
  	/** The application manager. */
  	@Autowired
  	@Qualifier("ApplicationManager")
  	private transient ApplicationManager applicationManager;
  
  	/** The configuration manager. */
  	@Autowired
  	@Qualifier("ConfigurationManager")
  	private transient ConfigurationManager configurationManager;
  
  	/** The language. */
  	private Language language;
  
  	/** The google api language. */
  	private com.google.api.translate.Language googleApiLanguage;
  
  	/*
  	 * (non-Javadoc)
  	 * 
  	 * @see
  	 * org.vaadin.navigator7.NavigableApplication#createNewNavigableAppLevelWindow
  	 * ()
  	 */
  	@Override
  	public NavigableAppLevelWindow createNewNavigableAppLevelWindow() {
  		setLanguage(Language.valueOf(getLocale().getDisplayLanguage()
  				.toUpperCase()));
  		return new TopLevelWindowTemplate(getUser(), this);
  	}
  
  	/*
  	 * (non-Javadoc)
  	 * 
  	 * @see
  	 * com.hack23.cia.web.impl.ui.common.ApplicationUserState#getApplicationManager
  	 * ()
  	 */
  	@Override
  	public ApplicationManager getApplicationManager() {
  		return applicationManager;
  	}
 
 	/*
 	 * (non-Javadoc)
 	 * 
 	 * @see com.hack23.cia.web.impl.ui.common.ApplicationUserState#
 	 * getConfigurationManager()
 	 */
 	@Override
 	public ConfigurationManager getConfigurationManager() {
 		return configurationManager;
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * 
 	 * @see
 	 * com.hack23.cia.web.impl.ui.common.ApplicationUserState#getGoogleApiLanguage
 	 * ()
 	 */
 	@Override
 	public com.google.api.translate.Language getGoogleApiLanguage() {
 		if (googleApiLanguage == null) {
 			googleApiLanguage = com.google.api.translate.Language
 					.valueOf(getLanguage().name().toUpperCase());
 		}
 		return googleApiLanguage;
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * 
 	 * @see com.hack23.cia.web.impl.ui.common.ApplicationUserState#getLanguage()
 	 */
 	@Override
 	public Language getLanguage() {
 		if (language == null) {
 			language = Language.valueOf(getLocale().getDisplayLanguage()
 					.toUpperCase());
 		}
 		return language;
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * 
 	 * @see com.vaadin.Application#getLocale()
 	 */
 	@Override
 	public Locale getLocale() {
 		return LocaleContextHolder.getLocale();
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * 
 	 * @see com.vaadin.Application#getUser()
 	 */
 	@Override
 	public Object getUser() {
 		return SecurityContextHolder.getContext().getAuthentication();
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * 
 	 * @see
 	 * com.hack23.cia.web.impl.ui.common.ApplicationUserState#setLanguage(com
 	 * .google.gwt.language.client.translation.Language)
 	 */
 	@Override
 	public void setLanguage(final Language language) {
 		this.language = language;
 		googleApiLanguage = com.google.api.translate.Language.valueOf(language
 				.name().toUpperCase());
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * 
 	 * @see com.vaadin.Application#setLocale(java.util.Locale)
 	 */
 	@Override
 	public void setLocale(final Locale locale) {
 		LocaleContextHolder.setLocale(locale);
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * 
 	 * @see
 	 * com.vaadin.Application#terminalError(com.vaadin.terminal.Terminal.ErrorEvent
 	 * )
 	 */
 	@Override
 	public void terminalError(
 			final com.vaadin.terminal.Terminal.ErrorEvent event) {
 		super.terminalError(event);
 		if (event.getThrowable().getCause() instanceof AccessDeniedException) {
 			getMainWindow().showNotification("accessdenied",
 					Notification.TYPE_ERROR_MESSAGE);
 		}
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * 
 	 * @see
 	 * com.vaadin.service.ApplicationContext.TransactionListener#transactionEnd
 	 * (com.vaadin.Application, java.lang.Object)
 	 */
 	@Override
 	public void transactionEnd(final Application application,
 			final Object object) {
 		if (this != application) {
 			return;
 		}
 		super.transactionEnd(application, object);
 		ApplicationUserStateHolder.removeCurrentApplicationUserState();
 		LOGGER.info("transactionEnd:" + object);
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * 
 	 * @see
 	 * com.vaadin.service.ApplicationContext.TransactionListener#transactionStart
 	 * (com.vaadin.Application, java.lang.Object)
 	 */
 	@Override
 	public void transactionStart(final Application application,
 			final Object object) {
 		if (this != application) {
 			return;
 		}
 		ApplicationUserStateHolder.addCurrentApplicationUserState(this);
 		super.transactionStart(application, object);
 		LOGGER.info("transactionStart:" + object);
 	}
 
 	/*
 	 * (non-Javadoc)
 	 * 
 	 * @see
 	 * com.hack23.cia.web.impl.ui.common.ApplicationUserState#translateFromEnglish
 	 * (java.lang.String)
 	 */
 	@Override
 	public String translateFromEnglish(final String string) {
 		return getApplicationManager().getTranslator()
 				.translateFromStandardProtocol(string, googleApiLanguage);
 	}
 
 }