content: /*
   * Symphony - A modern community (forum/BBS/SNS/blog) platform written in Java.
   * Copyright (C) 2012-present, b3log.org
   *
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Affero 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 Affero General Public License for more details.
   *
   * You should have received a copy of the GNU Affero General Public License
   * along with this program.  If not, see <https://www.gnu.org/licenses/>.
   */
  package org.b3log.symphony.service;
  
  import org.apache.commons.lang3.time.DateFormatUtils;
  import org.apache.commons.lang3.time.DateUtils;
  import org.apache.logging.log4j.Level;
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.b3log.latke.ioc.Inject;
  import org.b3log.latke.repository.RepositoryException;
  import org.b3log.latke.service.annotation.Service;
  import org.b3log.latke.util.Stopwatchs;
  import org.b3log.symphony.model.Liveness;
  import org.b3log.symphony.repository.LivenessRepository;
  import org.json.JSONObject;
  
  import java.util.Date;
  
  /**
   * Liveness query service.
   *
   * @author <a href="http://88250.b3log.org">Liang Ding</a>
   * @version 1.1.0.0, Mar 23, 2016
   * @since 1.4.0
   */
  @Service
  public class LivenessQueryService {
  
      /**
       * Logger.
       */
      private static final Logger LOGGER = LogManager.getLogger(LivenessQueryService.class);
  
      /**
       * Liveness repository.
       */
      @Inject
      private LivenessRepository livenessRepository;
  
      /**
       * Gets point of current liveness.
       *
       * @param userId the specified user id
       * @return point
       */
      public int getCurrentLivenessPoint(final String userId) {
          Stopwatchs.start("Gets liveness");
          try {
              final String date = DateFormatUtils.format(new Date(), "yyyyMMdd");
  
              try {
                  final JSONObject liveness = livenessRepository.getByUserAndDate(userId, date);
                  if (null == liveness) {
                      return 0;
                  }
  
                  return Liveness.calcPoint(liveness);
              } catch (final RepositoryException e) {
                  LOGGER.log(Level.ERROR, "Gets current liveness point failed", e);
  
                  return 0;
              }
          } finally {
              Stopwatchs.end();
          }
      }
  
      /**
       * Gets the yesterday's liveness.
       *
       * @param userId the specified user id
       * @return yesterday's liveness, returns {@code null} if not found
       */
      public JSONObject getYesterdayLiveness(final String userId) {
          final Date yesterday = DateUtils.addDays(new Date(), -1);
          final String date = DateFormatUtils.format(yesterday, "yyyyMMdd");
  
          try {
              return livenessRepository.getByUserAndDate(userId, date);
          } catch (final RepositoryException e) {
              LOGGER.log(Level.ERROR, "Gets yesterday's liveness failed", e);
  
              return null;
          }
      }
  }
  