/*
 * NOTE: This copyright does *not* cover user programs that use HQ
 * program services by normal system calls through the application
 * program interfaces provided as part of the Hyperic Plug-in Development
 * Kit or the Hyperic Client Development Kit - this is merely considered
 * normal use of the program, and does *not* fall under the heading of
 * "derived work".
 * 
 * Copyright (C) [2004, 2005, 2006], Hyperic, Inc.
 * This file is part of HQ.
 * 
 * HQ is free software; you can redistribute it and/or modify
 * it under the terms version 2 of the GNU General Public License as
 * published by the Free Software Foundation. This program 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 General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA.
 */

package org.hyperic.hq.ui.action.portlet;

import java.rmi.RemoteException;
import java.util.Properties;

import javax.annotation.Resource;
import javax.security.auth.login.LoginException;
import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;
import org.hyperic.hq.bizapp.shared.ConfigBoss;
import org.hyperic.hq.common.shared.HQConstants;
import org.hyperic.hq.ui.Constants;
import org.hyperic.hq.ui.action.BaseActionNG;
import org.hyperic.hq.ui.shared.DashboardManager;
import org.hyperic.hq.ui.util.RequestUtils;
import org.hyperic.util.ConfigPropertyException;
import org.hyperic.util.config.ConfigResponse;
import org.springframework.stereotype.Component;

/**
 * Base RSSAction class to extend. Provides utility methods.
 */

@Component("baseRSSActionNG")
public abstract class BaseRSSActionNG
    extends BaseActionNG {

	@Resource
    protected DashboardManager dashboardManager;
	@Resource
    protected ConfigBoss configBoss;

    private Properties configProps = null;

    protected String getUsername(HttpServletRequest request) {
        return RequestUtils.getStringParameter(request, "user");
    }

    protected ConfigResponse getUserPreferences(HttpServletRequest request, String user) throws LoginException,
        RemoteException, ConfigPropertyException {

        // Let's make sure that the rss auth token matches
        String rssToken = RequestUtils.getStringParameter(request, "token");

        // Get user preferences
        ConfigResponse preferences = dashboardManager.getRssUserPreferences(user, rssToken);

        ConfigResponse defaultPreferences = (ConfigResponse) ServletActionContext.getServletContext().getAttribute(
            Constants.DEF_USER_PREFS);

        preferences.merge(defaultPreferences, false);

        return preferences;
    }

    protected void setManagingEditor(HttpServletRequest request) throws RemoteException, ConfigPropertyException {
        Properties props = getConfigProps(request);

        // Get "from" sender for managingEditor field
        request.setAttribute("managingEditor", props.getProperty(HQConstants.EmailSender));
    }

    private String getBaseURL(HttpServletRequest request) throws RemoteException, ConfigPropertyException {
        Properties props = getConfigProps(request);
        return props.getProperty(HQConstants.BaseURL);
    }

    private Properties getConfigProps(HttpServletRequest request) throws RemoteException, ConfigPropertyException {
        if (configProps == null) {
            synchronized (this) {
                configProps = configBoss.getConfig();
            }
        }

        return configProps;
    }

    protected RSSFeed getNewRSSFeed(HttpServletRequest request) throws RemoteException, ConfigPropertyException {
        return new RSSFeed(getBaseURL(request));
    }
}