/*
    * Copyright 2012-2021 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.es.log.exbhv;
  
  import java.time.Instant;
  import java.time.LocalDateTime;
  import java.time.ZoneId;
  import java.time.format.DateTimeFormatter;
  import java.time.format.DateTimeParseException;
  import java.util.List;
  import java.util.Map;
  import java.util.regex.Pattern;
  
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.codelibs.core.misc.Pair;
  import org.codelibs.fess.es.log.bsbhv.BsSearchLogBhv;
  import org.codelibs.fess.es.log.exentity.SearchLog;
  import org.codelibs.fess.util.ComponentUtil;
  import org.dbflute.exception.IllegalBehaviorStateException;
  import org.dbflute.util.DfTypeUtil;
  
  /**
   * @author FreeGen
   */
  public class SearchLogBhv extends BsSearchLogBhv {
      private static final Logger logger = LogManager.getLogger(SearchLogBhv.class);
  
      private String indexName = null;
  
      @Override
      protected String asEsIndex() {
          if (indexName == null) {
              final String name = ComponentUtil.getFessConfig().getIndexLogIndex();
              indexName = super.asEsIndex().replaceFirst(Pattern.quote("fess_log"), name);
          }
          return indexName;
      }
  
      @Override
      protected LocalDateTime toLocalDateTime(final Object value) {
          if (value != null) {
              try {
                  final Instant instant = Instant.from(DateTimeFormatter.ISO_INSTANT.parse(value.toString()));
                  final LocalDateTime date = LocalDateTime.ofInstant(instant, ZoneId.systemDefault());
                  return date;
              } catch (final DateTimeParseException e) {
                  logger.debug("Invalid date format: {}", value, e);
              }
          }
          return DfTypeUtil.toLocalDateTime(value);
      }
  
      @SuppressWarnings("unchecked")
      @Override
      protected <RESULT extends SearchLog> RESULT createEntity(final Map<String, Object> source, final Class<? extends RESULT> entityType) {
          try {
              final RESULT result = super.createEntity(source, entityType);
              final Object searchFieldObj = source.get("searchField");
              if (searchFieldObj instanceof Map) {
                  ((Map<String, ?>) searchFieldObj).entrySet().stream().forEach(e -> {
                      if (e.getValue() instanceof String[]) {
                          final String[] values = (String[]) e.getValue();
                          for (final String v : values) {
                              result.getSearchFieldLogList().add(new Pair<>(e.getKey(), v));
                          }
                      } else if (e.getValue() instanceof List) {
                          final List<String> values = (List<String>) e.getValue();
                          for (final String v : values) {
                              result.getSearchFieldLogList().add(new Pair<>(e.getKey(), v));
                          }
                      } else if (e.getValue() != null) {
                          result.getSearchFieldLogList().add(new Pair<>(e.getKey(), e.getValue().toString()));
                      }
                  });
              }
              return result;
          } catch (final Exception e) {
              final String msg = "Cannot create a new instance: " + entityType.getName();
              throw new IllegalBehaviorStateException(msg, e);
          }
      }
  
  }