/**
 * This file Copyright (c) 2010-2012 Magnolia International
 * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
 *
 *
 * This file is dual-licensed under both the Magnolia
 * Network Agreement and the GNU General Public License.
 * You may elect to use one or the other of these licenses.
 *
 * This file is distributed in the hope that it will be
 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
 * Redistribution, except as permitted by whichever of the GPL
 * or MNA you select, is prohibited.
 *
 * 1. For the GPL license (GPL), you can redistribute and/or
 * modify this file under the terms of the GNU General
 * Public License, Version 3, as published by the Free Software
 * Foundation.  You should have received a copy of the GNU
 * General Public License, Version 3 along with this program;
 * if not, write to the Free Software Foundation, Inc., 51
 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * 2. For the Magnolia Network Agreement (MNA), this file
 * and the accompanying materials are made available under the
 * terms of the MNA which accompanies this distribution, and
 * is available at http://www.magnolia-cms.com/mna.html
 *
 * Any modifications to this file must keep this entire header
 * intact.
 *
 */
package info.magnolia.freemarker;

import info.magnolia.cms.beans.config.ServerConfiguration;
import info.magnolia.context.MgnlContext;

import java.io.Writer;

import freemarker.core.Environment;
import freemarker.template.TemplateException;
import freemarker.template.TemplateExceptionHandler;

/**
 * Exception handler providing different output based on the configuration of the current instance. Full stacktrace gets
 * rendered on the author instance only, while ignoring the stacktraces in preview mode and on public instances.
 *
 * @version $Id: $
 *
 * @deprecated since 4.5 - Replaced by {@link
 *             info.magnolia.rendering.engine.ModeDependentRenderExceptionHandler.ModeDependentRenderExceptionHandler(
 *             ServerConfiguration)} that can be set on the {@link info.magnolia.rendering.engine.RenderingEngine}.
 */
public class ModeDependentTemplateExceptionHandler implements TemplateExceptionHandler {
    @Override
    public void handleTemplateException(TemplateException te, Environment env, Writer out) throws TemplateException {
        final boolean isAuthorInstance = ServerConfiguration.getInstance().isAdmin();
        final boolean isPreviewMode = MgnlContext.getAggregationState().isPreviewMode();
        if (isAuthorInstance && !isPreviewMode) {
            inEditMode(te, env, out);
        } else {
            inPublicMode(te, env, out);
        }
    }

    protected void inPublicMode(TemplateException te, Environment env, Writer out) throws TemplateException {
        TemplateExceptionHandler.IGNORE_HANDLER.handleTemplateException(te, env, out);
    }

    protected void inEditMode(TemplateException te, Environment env, Writer out) throws TemplateException {
        TemplateExceptionHandler.HTML_DEBUG_HANDLER.handleTemplateException(te, env, out);
    }
}