/*
 * 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.PageState;
import com.arsdigita.cms.CMS;
import com.arsdigita.cms.PageLocations;

import org.librecms.contentsection.ContentItem;
import org.librecms.contentsection.ContentSection;

import com.arsdigita.web.ParameterMap;
import com.arsdigita.web.URL;

import org.apache.logging.log4j.LogManager;

import java.math.BigDecimal;
import java.util.List;
import java.util.Stack;

import org.apache.logging.log4j.Logger;

/**
 * The context bar of the content section UI.
 *
 * @author <a href="mailto:jens.pelzetter@googlemail.com">Jens Pelzetter</a>
 * @author Justin Ross
 */
public class ContentSectionContextBar extends WorkspaceContextBar {

    private static final Logger LOGGER = LogManager.getLogger(
        ContentSectionContextBar.class);

    @Override
    protected List<Entry> entries(final PageState state) {

        /* Include breadcrumb entries already set by content-center (i.e. the
         * URL of the content center itself                                   */
        final List<Entry> entries = super.entries(state);

        final ContentSection section = CMS.getContext().getContentSection();
        final Stack<Entry> folderEntryStack = new Stack<>();
        String currentFolderLabel = null;
        ParameterMap params = new ParameterMap();
        boolean isTemplate = false;
        BigDecimal templateID = null;

        if (CMS.getContext().hasContentItem()) {
            final ContentItem item = CMS.getContext().getContentItem();
            if (item == null) {
                LOGGER.warn("item is null");
            } else if (item.getContentType() == null) {
                LOGGER.warn(
                    "item.getContentType() returns null. item.class.getName(): "
                        + item.getClass().getName());
            }

            //ToDo NG - Not sure what happens here...
//            final Optional<CcmObject> parent = item.getParent();
//
//            while (!isTemplate 
//                   && parent.isPresent() 
//                   && parent.get() instanceof ContentItem) {
//                if (currentFolderLabel != null) {
//                    final URL folderURL = URL.there
//                        (state.getRequest(),
//                         section.getPath() + "/" + PageLocations.SECTION_PAGE,
//                         params);
//                    folderEntryStack.push(new Entry(currentFolderLabel, folderURL));
//                    currentFolderLabel = null;
//                    params = new ParameterMap();
//                }
//                final ContentItem pitem = (ContentItem) parent;
//
//                if (pitem instanceof Folder) {
//                    final Folder folder = (Folder) pitem;
//                    parent = folder.getParent();
//
//                    currentFolderLabel = folder.getLabel();
//                    if (parent != null || folder.equals(section.getRootFolder())) {
//                        params.setParameter
//                            (ContentSectionPage.SET_FOLDER, folder.getID());
//                    }
//                } else if (pitem instanceof ContentBundle) {
//                    final ACSObject ppitem = pitem.getParent();
//
//                    if (ppitem != null && ppitem instanceof Folder) {
//                        final Folder folder = (Folder) ppitem;
//
//                        parent = folder.getParent();
//                        currentFolderLabel = folder.getLabel();
//                        if (parent != null || folder.equals(section
//                                                            .getRootFolder())) {
//                            params.setParameter
//                                (ContentSectionPage.SET_FOLDER, folder.getID());
//                        }
//                    } else {
//                        parent = null;
//                    }
//                } else {
//                    parent = null;
//                }
//            }
        }

        if (isTemplate) {
            params.setParameter(ContentSectionPage.SET_TAB,
                                new BigDecimal(
                                    ContentSectionPage.CONTENTTYPES_TAB));
            params.setParameter(ContentSectionPage.SET_TEMPLATE, templateID);
        }

        // add section-level entry. if this is for an item page, the URL 
        // will be for the root folder.
        final URL url = URL.there(
            state.getRequest(),
            String.format("%s/" + PageLocations.SECTION_PAGE,
                          section.getPrimaryUrl()),
            params);

        final String sectionTitle = lz("cms.ui.content_section");
        final String title = sectionTitle + ": " + section.getLabel();

        entries.add(new Entry(title, url));

        // add any folders to the path now
        while (!folderEntryStack.empty()) {
            entries.add(folderEntryStack.pop());
        }

        return entries;
    }

    private static String lz(final String key) {
        return (String) ContentSectionPage.globalize(key).localize();
    }

}