/*
    * 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.config.exentity;
  
  import java.util.function.BiFunction;
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.codelibs.core.lang.StringUtil;
  import org.codelibs.fess.es.config.bsentity.BsPathMapping;
  import org.codelibs.fess.helper.PathMappingHelper;
  
  /**
   * @author FreeGen
   */
  public class PathMapping extends BsPathMapping {
  
      private static final Logger logger = LogManager.getLogger(PathMapping.class);
  
      private static final long serialVersionUID = 1L;
  
      protected Pattern userAgentPattern;
  
      protected Pattern regexPattern;
  
      protected BiFunction<String, Matcher, String> pathMapper;
  
      public String getId() {
          return asDocMeta().id();
      }
  
      public void setId(final String id) {
          asDocMeta().id(id);
      }
  
      public Long getVersionNo() {
          return asDocMeta().version();
      }
  
      public void setVersionNo(final Long version) {
          asDocMeta().version(version);
      }
  
      public String process(final PathMappingHelper pathMappingHelper, final String input) {
          if (regexPattern == null) {
              regexPattern = Pattern.compile(getRegex());
          }
          final Matcher matcher = regexPattern.matcher(input);
          if (matcher.find()) {
              if (pathMapper == null) {
                  final String replacement = StringUtil.isNotBlank(getReplacement()) ? getReplacement() : StringUtil.EMPTY;
                  pathMapper = pathMappingHelper.createPathMatcher(matcher, replacement);
              }
              try {
                  return pathMapper.apply(input, matcher);
              } catch (final Exception e) {
                  logger.warn("Failed to apply {}", pathMapper, e);
              }
          }
          return input;
      }
  
      public boolean hasUAMathcer() {
          return StringUtil.isNotBlank(getUserAgent());
      }
  
      public Matcher getUAMatcher(final CharSequence input) {
          if (!hasUAMathcer()) {
              return null;
          }
  
          if (userAgentPattern == null) {
              userAgentPattern = Pattern.compile(getUserAgent());
          }
          return userAgentPattern.matcher(input);
      }
  
      @Override
      public String toString() {
          return "PathMapping [regexPattern=" + regexPattern + ", createdBy=" + createdBy + ", createdTime=" + createdTime + ", processType="
                  + processType + ", regex=" + regex + ", replacement=" + replacement + ", sortOrder=" + sortOrder + ", userAgent="
                  + userAgent + ", updatedBy=" + updatedBy + ", updatedTime=" + updatedTime + ", docMeta=" + docMeta + "]";
      }
  }