001/*
002 *  Copyright 2018 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016
017package org.ametys.cms.repository.comment.actions;
018
019import java.util.HashMap;
020import java.util.Map;
021
022import org.apache.avalon.framework.parameters.Parameters;
023import org.apache.avalon.framework.service.ServiceException;
024import org.apache.avalon.framework.service.ServiceManager;
025import org.apache.cocoon.environment.ObjectModelHelper;
026import org.apache.cocoon.environment.Redirector;
027import org.apache.cocoon.environment.Request;
028import org.apache.cocoon.environment.SourceResolver;
029import org.apache.commons.lang.StringUtils;
030
031import org.ametys.cms.ObservationConstants;
032import org.ametys.cms.repository.ReactionableObject.ReactionType;
033import org.ametys.cms.repository.comment.Comment;
034import org.ametys.cms.repository.comment.CommentManagerExtensionPoint;
035import org.ametys.cms.repository.comment.CommentableContent;
036import org.ametys.core.cocoon.ActionResultGenerator;
037import org.ametys.core.observation.Event;
038import org.ametys.core.user.UserIdentity;
039
040/**
041 * Like or unlike a comment
042 */
043public class LikeCommentAction extends AbstractCommentAction
044{
045    /** The listeners for this action */
046    protected CommentManagerExtensionPoint _commentManager;
047
048    @Override
049    public void service(ServiceManager smanager) throws ServiceException
050    {
051        super.service(smanager);
052        _commentManager = (CommentManagerExtensionPoint) smanager.lookup(CommentManagerExtensionPoint.ROLE);
053    }
054    
055    @Override
056    public Map act(Redirector redirector, SourceResolver resolver, Map objectModel, String source, Parameters parameters) throws Exception
057    {
058        Request request = ObjectModelHelper.getRequest(objectModel);
059
060        Map<String, Object> results = new HashMap<>();
061        
062        String contentId = request.getParameter(PARAMETER_CONTENTID);
063        if (StringUtils.isBlank(contentId))
064        {
065            throw new IllegalArgumentException("Missing or empty 'content-id' parameter to like a comment");
066        }
067        
068        String commentId = request.getParameter(PARAMETER_COMMENTID);
069        if (StringUtils.isBlank(commentId))
070        {
071            throw new IllegalArgumentException("Missing or empty 'comment-id' parameter to like a comment");
072        }
073        
074        CommentableContent content = getContent(request, contentId);
075        Comment comment = content.getComment(commentId);
076        
077        UserIdentity currentUser = getCurrentUser();
078        if (comment.getReactionUsers(ReactionType.LIKE).contains(currentUser))
079        {
080            comment.removeReaction(currentUser, ReactionType.LIKE);
081        }
082        else
083        {
084            comment.addReaction(currentUser, ReactionType.LIKE);
085        }
086        
087        content.saveChanges();
088        
089        Map<String, Object> eventParams = new HashMap<>();
090        eventParams.put(ObservationConstants.ARGS_CONTENT, content);
091        eventParams.put(ObservationConstants.ARGS_COMMENT, comment);
092        eventParams.put(ObservationConstants.ARGS_REACTION_TYPE, ReactionType.LIKE);
093        eventParams.put(ObservationConstants.ARGS_REACTION_ISSUER, currentUser);
094        _observationManager.notify(new Event(ObservationConstants.EVENT_CONTENT_COMMENT_REACTION_CHANGED, getCurrentUser(), eventParams));
095        
096        results.put("redirect", request.getHeader("Referer") + "#" + comment.getId() + "-" + content.getId());
097        results.put("liked", true);
098        results.put("contentId", content.getId());
099        results.put("commentId", comment.getId());
100
101        request.setAttribute(ActionResultGenerator.MAP_REQUEST_ATTR, results);
102        return EMPTY_MAP;
103    }
104}