/*
 * Copyright (C) 2003-2004 Red Hat Inc. All Rights Reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */
package com.arsdigita.cms.ui;

import com.arsdigita.bebop.Component;
import com.arsdigita.bebop.Page;
import com.arsdigita.bebop.PageState;
import com.arsdigita.bebop.parameters.StringParameter;
import com.arsdigita.globalization.GlobalizedMessage;
import com.arsdigita.search.SearchConstants;

import org.librecms.contentsection.ContentItem;

import com.arsdigita.xml.Element;

import com.arsdigita.search.ui.QueryGenerator;
import com.arsdigita.search.ui.ResultsPane;
import com.arsdigita.web.Web;

import org.libreccm.core.CcmObject;
import org.librecms.CmsConstants;

import java.math.BigDecimal;

import javax.servlet.http.HttpServletRequest;

/**
 * An extension of {@link ItemSearch} for use in a popup search window. The
 * display of results is altered so that selecting a result closes the window &
 * passes the id of the selected item back to the opener.
 *
 * @author Stanislav Freidin (sfreidin@arsdigita.com)
 * @author <a href=mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
 */
public class ItemSearchPopup extends ItemSearch {

//    private static final org.apache.log4j.Logger s_log = org.apache.log4j.Logger.getLogger(
//        ItemSearchPopup.class);
    public static final String WIDGET_PARAM = "widget";
    public static final String URL_PARAM = "useURL";
    public static final String QUERY = "query";

    /**
     * Construct a new <code>ItemSearchPopup</code> component
     *
     * @param context               the context for the retrieved items. Should
     *                              be {@link ContentItem#DRAFT} or
     *                              {@link ContentItem#LIVE}
     * @param limitToContentSection limit the search to the current content
     *                              section
     */
    public ItemSearchPopup(final String context,
                           final boolean limitToContentSection) {
        super(context, limitToContentSection);
    }

    // Hide results by default
    @Override
    public void register(final Page page) {
        super.register(page);
        page.addGlobalStateParam(new StringParameter(WIDGET_PARAM));
        page.addGlobalStateParam(new StringParameter(URL_PARAM));
        page.addGlobalStateParam(new StringParameter(QUERY));
    }

    @Override
    protected ItemSearchSection createSearchSection(
        final String context, final boolean limitToContentSection) {
        return new ItemSearchSectionPopup(context, limitToContentSection);
    }

    private static class ItemSearchSectionPopup extends ItemSearchSection {

        public ItemSearchSectionPopup(final String context,
                                      final boolean limitToContentSection) {
            super(context, limitToContentSection);
        }

        @Override
        protected Component createResultsPane(final QueryGenerator generator) {
            return new PopupResultsPane(generator);
        }

    }

    /**
     * The default context is Live.No need to append &context=live explicitly.
     *
     * @param request
     * @param objectId
     *
     * @return
     */
    public static String getItemURL(final HttpServletRequest request,
                                    final Long objectId) {
        // redirect doesn't use /ccm prefix for some reason, so just returning the raw string.
        //ParameterMap map = new ParameterMap();
        //map.setParameter("oid", oid.toString());
        //return URL.there(request, "/redirect/", map).toString();
        // Always link directly to the live version.
        if (Web.getWebappContextPath() == null) {
            return "/redirect/?oid=" + objectId.toString();
        } else {
            return Web.getWebappContextPath() + "/redirect/?oid=" + objectId
                .toString();
        }
    }

    private static class PopupResultsPane extends ResultsPane {

        public PopupResultsPane(final QueryGenerator generator) {
            super(generator);
            setRelativeURLs(true);
            setSearchHelpMsg(new GlobalizedMessage("cms.ui.search.help",
                                                   CmsConstants.CMS_BUNDLE));
            setNoResultsMsg(new GlobalizedMessage("cms.ui.search.no_results",
                                                  CmsConstants.CMS_BUNDLE));
        }

        @Override
        protected Element generateDocumentXML(final PageState state,
                                              final CcmObject doc) {
            final Element element = super.generateDocumentXML(state, doc);

            element.addAttribute("class", "jsButton");

            final String widget = (String) state.getValue(new StringParameter(
                WIDGET_PARAM));
            final String searchWidget = (String) state.getValue(
                new StringParameter("searchWidget"));

            final boolean useURL = "true".equals(state.getValue(
                new StringParameter(URL_PARAM)));

            String fillString;
            if (useURL) {
                fillString = getItemURL(state.getRequest(), doc.getObjectId());
            } else {
                fillString = Long.toString(doc.getObjectId());
            }

            final String title = doc.getDisplayName();

            final Element jsLabel = new Element(
                SearchConstants.XML_PREFIX + "jsAction",
                SearchConstants.XML_NS);
            jsLabel.addAttribute(
                "name", "fillItem" + Long.toString(doc.getObjectId()) + "()");
            jsLabel.setText(generateJSLabel(doc.getObjectId(),
                                            widget,
                                            searchWidget,
                                            fillString,
                                            title));
            jsLabel.addAttribute("action",
                                 String.format(
                                     "window.opener.document.%s.value = \"%s\"; self.close(); return false;",
                                     widget,
                                     fillString));
            element.addContent(jsLabel);

            return element;
        }

        private String generateJSLabel(final Long docId,
                                       final String widget,
                                       final String searchWidget,
                                       final String fill,
                                       final String title) {
            return " <script language=\"javascript\"> "
                       + " <!-- \n"
                       + " function fillItem" + docId + "() { \n"
                       + " alert('test');\n"
                       + " window.opener.document." + widget + ".value=\""
                       + fill + "\";\n"
                       + " self.close(); \n"
                       + " return false; \n"
                       + " } \n"
                       + " --> \n"
                       + " </script> ";
        }

    }

}