/*
 * This library is part of OpenCms -
 * the Open Source Content Management System
 *
 * Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
 *
 * 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.
 *
 * For further information about Alkacon Software, please see the
 * company website: http://www.alkacon.com
 *
 * For further information about OpenCms, please see the
 * project website: http://www.opencms.org
 * 
 * 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 org.opencms.workplace.galleries;

import org.opencms.file.CmsResource;
import org.opencms.file.types.CmsResourceTypePlain;
import org.opencms.json.JSONException;
import org.opencms.json.JSONObject;
import org.opencms.jsp.CmsJspActionElement;
import org.opencms.loader.CmsLoaderException;
import org.opencms.main.CmsException;
import org.opencms.main.CmsLog;
import org.opencms.main.OpenCms;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.PageContext;

import org.apache.commons.logging.Log;

/**
 * Provides the specific constants, members and helper methods to generate the content of the html gallery dialog 
 * used in the XML content editors, WYSIWYG editors and context menu.<p>
 * 
 * @since 7.5.0 
 */
public class CmsAjaxHtmlGallery extends A_CmsAjaxGallery {

    /** Type name of the html gallery. */
    public static final String GALLERYTYPE_NAME = "htmlgallery";

    /** The uri suffix for the gallery start page. */
    public static final String OPEN_URI_SUFFIX = GALLERYTYPE_NAME + "/index.jsp";

    /** The log object for this class. */
    private static final Log LOG = CmsLog.getLog(CmsAjaxHtmlGallery.class);

    /** The resource type id of this gallery instance. */
    private int m_galleryTypeId;

    /**
     * Public empty constructor, required for {@link A_CmsAjaxGallery#createInstance(String, CmsJspActionElement)}.<p>
     */
    public CmsAjaxHtmlGallery() {

        // noop
    }

    /**
     * Public constructor with JSP action element.<p>
     * 
     * @param jsp an initialized JSP action element
     */
    public CmsAjaxHtmlGallery(CmsJspActionElement jsp) {

        super(jsp);

    }

    /**
     * Public constructor with JSP variables.<p>
     * 
     * @param context the JSP page context
     * @param req the JSP request
     * @param res the JSP response
     */
    public CmsAjaxHtmlGallery(PageContext context, HttpServletRequest req, HttpServletResponse res) {

        this(new CmsJspActionElement(context, req, res));

    }

    /**
     * @see org.opencms.workplace.galleries.A_CmsAjaxGallery#getGalleryItemsTypeId()
     */
    @Override
    public int getGalleryItemsTypeId() {

        int plainId;
        try {
            plainId = OpenCms.getResourceManager().getResourceType(CmsResourceTypePlain.getStaticTypeName()).getTypeId();
        } catch (CmsLoaderException e) {
            // this should really never happen
            plainId = CmsResourceTypePlain.getStaticTypeId();
        }
        return plainId;
    }

    /**
     * @see org.opencms.workplace.galleries.A_CmsAjaxGallery#getGalleryTypeId()
     */
    @Override
    public int getGalleryTypeId() {

        try {
            this.m_galleryTypeId = OpenCms.getResourceManager().getResourceType(GALLERYTYPE_NAME).getTypeId();
        } catch (CmsLoaderException e) {
            // resource type not found, log error
            if (LOG.isErrorEnabled()) {
                LOG.error(e.getLocalizedMessage(), e);
            }
        }
        return this.m_galleryTypeId;
    }

    /**
     * @see org.opencms.workplace.galleries.A_CmsAjaxGallery#getGalleryTypeName()
     */
    @Override
    public String getGalleryTypeName() {

        return GALLERYTYPE_NAME;
    }

    /**
     * Fills the JSON object with the specific information used for the resources of the html gallery.<p>
     * 
     * <ul>
     * <li><code>html</code>: the content of the given file resource (html code).</li>
     * </ul>
     * 
     * @see org.opencms.workplace.galleries.A_CmsAjaxGallery#buildJsonItemSpecificPart(JSONObject jsonObj, CmsResource res, String sitePath)
     *
     */
    @Override
    protected void buildJsonItemSpecificPart(JSONObject jsonObj, CmsResource res, String sitePath) {

        String html = "";
        try {
            html = new String(getCms().readFile(res).getContents());
            jsonObj.append("html", html);
        } catch (CmsException e) {
            // reading the resource or property value failed
            LOG.error(e.getLocalizedMessage(), e);
        } catch (JSONException e) {
            if (LOG.isErrorEnabled()) {
                LOG.error(e.getLocalizedMessage(), e);
            }
        }

    }

}