/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.lucene.search.vectorhighlight;

import java.util.ArrayList;
import java.util.List;
import org.apache.lucene.search.vectorhighlight.FieldFragList.WeightedFragInfo.SubInfo;
import org.apache.lucene.search.vectorhighlight.FieldPhraseList.WeightedPhraseInfo;

/** A simple implementation of {@link FieldFragList}. */
public class SimpleFieldFragList extends FieldFragList {

  /**
   * a constructor.
   *
   * @param fragCharSize the length (number of chars) of a fragment
   */
  public SimpleFieldFragList(int fragCharSize) {
    super(fragCharSize);
  }

  /* (non-Javadoc)
   * @see org.apache.lucene.search.vectorhighlight.FieldFragList#add( int startOffset, int endOffset, List<WeightedPhraseInfo> phraseInfoList )
   */
  @Override
  public void add(int startOffset, int endOffset, List<WeightedPhraseInfo> phraseInfoList) {
    float totalBoost = 0;
    List<SubInfo> subInfos = new ArrayList<>();
    for (WeightedPhraseInfo phraseInfo : phraseInfoList) {
      subInfos.add(
          new SubInfo(
              phraseInfo.getText(),
              phraseInfo.getTermsOffsets(),
              phraseInfo.getSeqnum(),
              phraseInfo.getBoost()));
      totalBoost += phraseInfo.getBoost();
    }
    getFragInfos().add(new WeightedFragInfo(startOffset, endOffset, subInfos, totalBoost));
  }
}
