/*
 * Symphony - A modern community (forum/SNS/blog) platform written in Java.
 * Copyright (C) 2012-2017,  b3log.org & hacpai.com
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */
package org.b3log.symphony.event;

import org.apache.commons.lang.StringUtils;
import org.b3log.latke.event.AbstractEventListener;
import org.b3log.latke.event.Event;
import org.b3log.latke.event.EventException;
import org.b3log.latke.ioc.inject.Inject;
import org.b3log.latke.ioc.inject.Named;
import org.b3log.latke.ioc.inject.Singleton;
import org.b3log.latke.logging.Level;
import org.b3log.latke.logging.Logger;
import org.b3log.symphony.model.Article;
import org.b3log.symphony.model.Tag;
import org.b3log.symphony.service.SearchMgmtService;
import org.b3log.symphony.util.JSONs;
import org.b3log.symphony.util.Symphonys;
import org.json.JSONObject;

/**
 * Sends an article to local search engine.
 *
 * @author <a href="http://88250.b3log.org">Liang Ding</a>
 * @version 1.1.3.1, Sep 5, 2017
 * @since 1.4.0
 */
@Named
@Singleton
public class ArticleSearchAdder extends AbstractEventListener<JSONObject> {

    /**
     * Logger.
     */
    private static final Logger LOGGER = Logger.getLogger(ArticleSearchAdder.class);

    /**
     * Search management service.
     */
    @Inject
    private SearchMgmtService searchMgmtService;

    @Override
    public void action(final Event<JSONObject> event) throws EventException {
        final JSONObject data = event.getData();
        LOGGER.log(Level.TRACE, "Processing an event [type={0}, data={1}]", event.getType(), data);

        final JSONObject article = data.optJSONObject(Article.ARTICLE);
        if (Article.ARTICLE_TYPE_C_DISCUSSION == article.optInt(Article.ARTICLE_TYPE)
                || Article.ARTICLE_TYPE_C_THOUGHT == article.optInt(Article.ARTICLE_TYPE)) {
            return;
        }

        final String tags = article.optString(Article.ARTICLE_TAGS);
        if (StringUtils.containsIgnoreCase(tags, Tag.TAG_TITLE_C_SANDBOX)) {
            return;
        }

        if (Symphonys.getBoolean("algolia.enabled")) {
            searchMgmtService.updateAlgoliaDocument(JSONs.clone(article));
        }

        if (Symphonys.getBoolean("es.enabled")) {
            searchMgmtService.updateESDocument(JSONs.clone(article), Article.ARTICLE);
        }
    }

    /**
     * Gets the event type {@linkplain EventTypes#ADD_ARTICLE}.
     *
     * @return event type
     */
    @Override
    public String getEventType() {
        return EventTypes.ADD_ARTICLE;
    }
}
