/*

  * Copyright (c) 2002-2013, Mairie de Paris

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions

  * are met:

  *

  *  1. Redistributions of source code must retain the above copyright notice

  *     and the following disclaimer.

  *

  *  2. Redistributions in binary form must reproduce the above copyright notice

  *     and the following disclaimer in the documentation and/or other materials

  *     provided with the distribution.

  *

  *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its

  *     contributors may be used to endorse or promote products derived from

  *     this software without specific prior written permission.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE

  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

  * POSSIBILITY OF SUCH DAMAGE.

  *

  * License 1.0

  */

 package fr.paris.lutece.plugins.pagelinkservice.web;

 import fr.paris.lutece.plugins.pagelinkservice.business.PageLinkService;

 import fr.paris.lutece.plugins.pagelinkservice.business.PageLinkServiceHome;

 import fr.paris.lutece.portal.business.page.Page;

 import fr.paris.lutece.portal.business.page.PageHome;

 import fr.paris.lutece.portal.business.user.AdminUser;

 import fr.paris.lutece.portal.service.admin.AdminUserService;

 import fr.paris.lutece.portal.service.message.AdminMessage;

 import fr.paris.lutece.portal.service.message.AdminMessageService;

 import fr.paris.lutece.portal.service.page.IPageService;

 import fr.paris.lutece.portal.service.page.PageResourceIdService;

 import fr.paris.lutece.portal.service.plugin.Plugin;

 import fr.paris.lutece.portal.service.plugin.PluginService;

 import fr.paris.lutece.portal.service.spring.SpringContextService;

 import fr.paris.lutece.portal.service.template.AppTemplateService;

 import fr.paris.lutece.portal.service.util.AppPathService;

 import fr.paris.lutece.portal.service.util.AppPropertiesService;

 import fr.paris.lutece.portal.web.constants.Messages;

 import fr.paris.lutece.portal.web.insert.InsertServiceJspBean;

 import fr.paris.lutece.portal.web.insert.InsertServiceSelectionBean;

 import fr.paris.lutece.util.html.HtmlTemplate;

 import fr.paris.lutece.util.url.UrlItem;

 import org.apache.commons.lang.StringEscapeUtils;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.HashMap;

 import javax.servlet.http.HttpServletRequest;

 /**

  * This class provides the user interface to manage PageLibrary features

  */

 public class PageLinkServiceJspBean extends InsertServiceJspBean implements InsertServiceSelectionBean

 {

     ////////////////////////////////////////////////////////////////////////////

     // Constants

     private static final String REGEX_PAGE_ID = "^[\\d]+$";

     //Parameters

     private static final String PARAMETER_PLUGIN_NAME = "plugin_name";

     private static final String PARAMETER_PAGE_NAME = "page_name";

     private static final String PARAMETER_PAGE_ID = "page";

     private static final String PARAMETER_PAGE_ID_URL = "page_id";

     private static final String PARAMETER_ALT = "alt";

     private static final String PARAMETER_TARGET = "target";

     private static final String PARAMETER_NAME = "name";

     private static final String PARAMETER_INPUT = "input";

     //Properties

     private static final String PROPERTY_SEARCH_MESSAGE = "message.warning.resulsearch.empty";

     //Markers

     private static final String MARK_PLUGIN_NAME = "plugin_name";

     private static final String MARK_SEARCH_MESSAGE = "search_message";

     private static final String MARK_PAGES_LIST = "pages_list";

     private static final String MARK_LIST_PAGE = "list_page";

     private static final String MARK_URL = "url";

     private static final String MARK_TARGET = "target";

     private static final String MARK_ALT = "alt";

     private static final String MARK_NAME = "name";

     private static final String MARK_INPUT = "input";

     //Templates

     private static final String TEMPLATE_SELECTOR_PAGE = "admin/plugins/pagelinkservice/pagelinkservice_selector.html";

     private static final String TEMPLATE_LINK = "admin/plugins/pagelinkservice/pagelinkservice_link.html";

     private AdminUser _user;

     private Plugin _plugin;

     private String _input;

     private IPageService _pageService = (IPageService) SpringContextService.getBean("pageService");

     ////////////////////////////////////////////////////////////////////////////

     // Methods

     /**

      * Return the html form for image selection.

      *

      * @param request The Http Request

      * @return The html form.

      */

     public String getInsertServiceSelectorUI( HttpServletRequest request )

     {

         init( request );

         AdminUser user = AdminUserService.getAdminUser( request );

         String strSearch = request.getParameter( PARAMETER_PAGE_NAME );

         String strResultSearch = ( strSearch == null ) ? "" : strSearch;

         String strPageName = replaceString( strResultSearch, "'", "''" );

         HashMap model = getDefaultModel(  );

         Collection<PageLinkService> listPages = PageLinkServiceHome.getPageListbyName( strPageName );

         Collection<PageLinkService> listPagesAuthorized = new ArrayList<PageLinkService>(  );

         for ( PageLinkService pageLinkService : listPages )

         {

             if ( _pageService.isAuthorizedAdminPage( pageLinkService.getIdPage(  ),

                         PageResourceIdService.PERMISSION_VIEW, user ) )

             {

                 listPagesAuthorized.add( pageLinkService );

             }

         }

         model.put( MARK_PAGES_LIST, listPagesAuthorized );

         StringBuilder strListPage = new StringBuilder(  );

         if ( listPages.isEmpty() )

         {

             model.put( MARK_SEARCH_MESSAGE, AppPropertiesService.getProperty( PROPERTY_SEARCH_MESSAGE ) );

         }

         String strBaseUrl = AppPathService.getBaseUrl( request );

         // Search Message

         model.put( MARK_URL, strBaseUrl );

         model.put( MARK_LIST_PAGE, strListPage.toString(  ) );

         HtmlTemplate template = AppTemplateService.getTemplate( TEMPLATE_SELECTOR_PAGE, _user.getLocale(  ), model );

         return template.getHtml(  );

     }

     /**

      * Replaces a string in an initial string by another string

      *

      * @param str the initial string

      * @param oldStr the string to replace

      * @param newStr the string which will replace the old string

      * @return the cleaned string

      */

     private String replaceString( String str, String oldStr, String newStr )

     {

         // Temporary string to avoid assignment of parameter str

         String cleanString = str;

         int index = 0;

         while ( true )

         {

             index = cleanString.lastIndexOf( oldStr );

             if ( ( index == 2 ) || ( index == -1 ) )

             {

                 break;

             }

             cleanString = cleanString.substring( 0, index ) + newStr +

                 cleanString.substring( index + oldStr.length(  ) );

         }

         return cleanString;

     }

     /**

      * Insert the specified url into HTML content

      *

      * @param request The http request

      * @return String The url

      */

     public String doInsertUrl( HttpServletRequest request )

     {

         init( request );

         String strPageId = request.getParameter( PARAMETER_PAGE_ID );

         String strTarget = request.getParameter( PARAMETER_TARGET );

         String strAlt = request.getParameter( PARAMETER_ALT );

         String strName = request.getParameter( PARAMETER_NAME );

         HashMap<String, Object> model = new HashMap<String, Object>(  );

         Page page = null;

         if ( ( strPageId == null ) || !strPageId.matches( REGEX_PAGE_ID ) )

         {

             return AdminMessageService.getMessageUrl( request, Messages.MANDATORY_FIELDS, AdminMessage.TYPE_STOP );

         }

         page = PageHome.findByPrimaryKey( Integer.parseInt( strPageId ) );

         UrlItem url = new UrlItem( AppPathService.getPortalUrl(  ) );

         url.addParameter( PARAMETER_PAGE_ID_URL, page.getId(  ) );

         model.put( MARK_URL, url.getUrl(  ) );

         model.put( MARK_TARGET, strTarget );

         model.put( MARK_ALT, strAlt );

         model.put( MARK_NAME, ( strName.length(  ) == 0 ) ? page.getName(  ) : strName );

         HtmlTemplate template = AppTemplateService.getTemplate( TEMPLATE_LINK, null, model );

         return insertUrl( request, _input, StringEscapeUtils.escapeJavaScript( template.getHtml(  ) ) );

     }

     private void init( HttpServletRequest request )

     {

         String strPluginName = request.getParameter( PARAMETER_PLUGIN_NAME );

         _user = AdminUserService.getAdminUser( request );

         _plugin = PluginService.getPlugin( strPluginName );

         _input = request.getParameter( PARAMETER_INPUT );

     }

     private HashMap getDefaultModel(  )

     {

         HashMap model = new HashMap(  );

         model.put( MARK_PLUGIN_NAME, _plugin.getName(  ) );

         model.put( MARK_INPUT, _input );

         return model;

     }

 }