package org.apache.maven.continuum.web.appareance;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.
   */
  
  import org.apache.continuum.web.appearance.ContinuumAppearance;
  import org.apache.continuum.web.appearance.io.xpp3.ContinuumAppearanceModelsXpp3Reader;
  import org.apache.continuum.web.appearance.io.xpp3.ContinuumAppearanceModelsXpp3Writer;
  import org.codehaus.plexus.personality.plexus.lifecycle.phase.Initializable;
  import org.codehaus.plexus.personality.plexus.lifecycle.phase.InitializationException;
  import org.codehaus.plexus.util.ReaderFactory;
  import org.codehaus.plexus.util.StringUtils;
  import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
  import org.jsoup.Jsoup;
  import org.jsoup.safety.Whitelist;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.File;
  import java.io.FileWriter;
  import java.io.IOException;
  import java.util.Calendar;
  
  /**
   * @author <a href="mailto:olamy@apache.org">olamy</a>
   * @version $Id: DefaultAppareanceConfiguration.java 1372267 2012-08-13 05:47:30Z brett $
   * @plexus.component role="org.apache.maven.continuum.web.appareance.AppareanceConfiguration" role-hint="default"
   * @since 10 nov. 07
   */
  public class DefaultAppareanceConfiguration
      implements AppareanceConfiguration, Initializable
  {
      private static final Logger log = LoggerFactory.getLogger( DefaultAppareanceConfiguration.class );
  
      private String footer;
  
      public static final String APPEARANCE_FILE_NAME = "continuum-appearance.xml";
  
      private ContinuumAppearance continuumAppearance = new ContinuumAppearance();
  
      // ------------------------------------------------
      //  Plexus Lifecycle
      // ------------------------------------------------
  
      public void initialize()
          throws InitializationException
      {
  
          File appearanceConfFile = getAppearanceConfigurationFile();
  
          if ( appearanceConfFile.exists() )
          {
              try
              {
                  ContinuumAppearanceModelsXpp3Reader appearanceReader = new ContinuumAppearanceModelsXpp3Reader();
                  this.continuumAppearance = appearanceReader.read( ReaderFactory.newXmlReader( appearanceConfFile ) );
                  if ( continuumAppearance != null )
                  {
                      this.footer = continuumAppearance.getFooter();
                  }
              }
              catch ( IOException e )
              {
                  log.warn(
                      "skip IOException reading appearance file " + APPEARANCE_FILE_NAME + ", msg " + e.getMessage() );
              }
              catch ( XmlPullParserException e )
              {
                  log.warn( "skip XmlPullParserException reading appearance file " + APPEARANCE_FILE_NAME + ", msg " +
                                e.getMessage() );
              }
          }
          if ( StringUtils.isEmpty( this.footer ) )
          {
              // initiate with default footer (save in registry ?)
              this.footer = getDefaultFooter();
          }
      }
  
      /**
       * @see org.apache.maven.continuum.web.appareance.AppareanceConfiguration#getFooter()
       */
      public String getFooter()
     {
         return this.footer;
     }
 
     /**
      * @see org.apache.maven.continuum.web.appareance.AppareanceConfiguration#saveFooter(java.lang.String)
      */
     public void saveFooter( String footerHtmlContent )
         throws IOException
     {
         String safeFooterHtmlContent = Jsoup.clean( footerHtmlContent, Whitelist.basic() );
 
         continuumAppearance.setFooter( safeFooterHtmlContent );
         ContinuumAppearanceModelsXpp3Writer writer = new ContinuumAppearanceModelsXpp3Writer();
         File confFile = getAppearanceConfigurationFile();
         if ( !confFile.exists() )
         {
             confFile.getParentFile().mkdirs();
         }
         FileWriter fileWriter = new FileWriter( confFile );
         writer.write( fileWriter, continuumAppearance );
         fileWriter.close();
         this.footer = safeFooterHtmlContent;
     }
 
 
     private String getDefaultFooter()
     {
         int inceptionYear = 2005;
         int currentYear = Calendar.getInstance().get( Calendar.YEAR );
         StringBuilder stringBuilder = new StringBuilder();
         stringBuilder.append( "<div class=\"xright\">" );
         stringBuilder.append( "Copyright &copy; " );
         stringBuilder.append( String.valueOf( inceptionYear ) ).append( "-" ).append( String.valueOf( currentYear ) );
         stringBuilder.append( "&nbsp;The Apache Software Foundation" );
         stringBuilder.append( "</div> <div class=\"clear\"><hr/></div>" );
         return stringBuilder.toString();
     }
 
 
     private File getAppearanceConfigurationFile()
     {
         return new File( System.getProperty( "appserver.base" ) + File.separator + "conf" + File.separator +
                              APPEARANCE_FILE_NAME );
     }
 }