/*
    * Copyright 2012-2025 CodeLibs Project and the Others.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *     http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied. See the License for the specific language
   * governing permissions and limitations under the License.
   */
  package org.codelibs.fess.score;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  
  /**
   * This class updates scores of documents.
   */
  public class ScoreUpdater {
      /**
       * Constructor.
       */
      public ScoreUpdater() {
          super();
      }
  
      private static final Logger logger = LogManager.getLogger(ScoreUpdater.class);
  
      private final List<ScoreBooster> scoreBoosterList = new ArrayList<>();
  
      /**
       * Executes all score boosters.
       * @return The result of the execution.
       */
      public String execute() {
          final StringBuilder resultBuf = new StringBuilder();
          scoreBoosterList.forEach(b -> {
              try {
                  final long count = b.process();
                  resultBuf.append(b.getClass().getSimpleName()).append(" : ").append(count).append('\n');
              } catch (final Exception e) {
                  logger.warn("Failed to update scores: booster={}", b.getClass().getSimpleName(), e);
                  resultBuf.append(e.getMessage()).append('\n');
              }
          });
          return resultBuf.toString();
      }
  
      /**
       * Adds a score booster.
       * @param scoreBooster The score booster.
       */
      protected void addScoreBooster(final ScoreBooster scoreBooster) {
          scoreBoosterList.add(scoreBooster);
          scoreBoosterList.sort((b1, b2) -> b2.getPriority() - b1.getPriority());
      }
  }