/**
 * Copyright (c) 2009--2015 Red Hat, Inc.
 *
 * This software is licensed to you under the GNU General Public License,
 * version 2 (GPLv2). There is NO WARRANTY for this software, express or
 * implied, including the implied warranties of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. You should have received a copy of GPLv2
 * along with this software; if not, see
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
 *
 * Red Hat trademarks are not licensed under GPLv2. No permission is
 * granted to use or replicate Red Hat trademarks that are incorporated
 * in this software or its documentation.
 */
package com.redhat.rhn.frontend.action.channel.manage;

import com.redhat.rhn.domain.channel.Channel;
import com.redhat.rhn.domain.channel.ChannelFactory;
import com.redhat.rhn.domain.rhnset.RhnSet;
import com.redhat.rhn.domain.user.User;
import com.redhat.rhn.frontend.dto.ErrataOverview;
import com.redhat.rhn.frontend.struts.RequestContext;
import com.redhat.rhn.frontend.struts.RhnHelper;
import com.redhat.rhn.frontend.struts.RhnListAction;
import com.redhat.rhn.manager.channel.ChannelManager;
import com.redhat.rhn.manager.errata.ErrataManager;
import com.redhat.rhn.manager.errata.cache.ErrataCacheManager;
import com.redhat.rhn.manager.rhnset.RhnSetDecl;

import org.apache.log4j.Logger;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

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


/**
 *
 * PublishErrataAction
 * @version $Rev$
 */
public class PublishErrataAction extends RhnListAction {


    private static final String CID = "cid";

    /**
     *
     * {@inheritDoc}
     */
    public ActionForward execute(ActionMapping mapping,
            ActionForm formIn,
            HttpServletRequest request,
            HttpServletResponse response) {

        RequestContext requestContext = new RequestContext(request);
        User user =  requestContext.getCurrentUser();
        Long cid = Long.parseLong(request.getParameter(CID));
        Channel currentChan = ChannelFactory.lookupByIdAndUser(cid, user);
        Map<String, Object> forwardParams = new HashMap<String, Object>();
        forwardParams.put(CID, cid);

        PublishErrataHelper.checkPermissions(user, cid);

        RhnSet  packageSet = RhnSetDecl.setForChannelPackages(currentChan).get(user);
        Set<Long> packageIds = packageSet.getElementValues();

        Logger log = Logger.getLogger(this.getClass());
        if (log.isDebugEnabled()) {
            log.debug("Set in Publish: "  +  packageSet.size());
        }

        List<Long> channelPacks = ChannelFactory.getPackageIds(currentChan.getId());

        for (Long pid : packageIds) {
            if (!channelPacks.contains(pid)) {
                ChannelFactory.addChannelPackage(currentChan.getId(), pid);
            }
        }

        // used to schedule an asynchronous action to clone errata because it was
        // so slow. Is much faster now, just do inline.
        //Set<Long> errataIds = RhnSetDecl.setForChannelErrata(currentChan).get(
        //        user).getElementValues();
        //ErrataManager.publishErrataToChannelAsync(currentChan, errataIds, user);
        List<ErrataOverview> errata = ErrataManager.errataInSet(user,
                RhnSetDecl.setForChannelErrata(currentChan).get(user).getLabel());
        List<Long> eids = ErrataManager.cloneChannelErrata(errata, currentChan.getId(),
                user);


        //update the errata info
        ChannelManager.refreshWithNewestPackages(currentChan, "web.errata_push");
        List<Long> chanList = new ArrayList<Long>();
        chanList.add(currentChan.getId());
        for (Long eid : eids) {
            ErrataCacheManager.insertCacheForChannelErrataAsync(chanList, eid);
        }
        request.setAttribute("cid", cid);

        ActionMessages msg = new ActionMessages();
        String[] params = { errata.size() + "", packageIds.size() + "",
                currentChan.getName()};
        msg.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage(
                "frontend.actions.channels.manager.add.success", params));

        getStrutsDelegate().saveMessages(requestContext.getRequest(), msg);

        return getStrutsDelegate().forwardParams(
                mapping.findForward(RhnHelper.DEFAULT_FORWARD), forwardParams);
    }





}