/*
 * 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.
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package org.apache.lucene.search.vectorhighlight;

import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.FieldType;
import org.apache.lucene.document.TextField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.BooleanClause.Occur;
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.PhraseQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.store.ByteBuffersDirectory;
import org.apache.lucene.store.Directory;
import org.apache.lucene.tests.analysis.MockSynonymAnalyzer;
import org.apache.lucene.tests.util.LuceneTestCase;

public class TestFastVectorHighlighterStackedSynonym extends LuceneTestCase {

  public void testTermAtStackedPositionIsHighlighted() throws Exception {
    FieldType ft = new FieldType(TextField.TYPE_STORED);
    ft.setStoreTermVectors(true);
    ft.setStoreTermVectorPositions(true);
    ft.setStoreTermVectorOffsets(true);
    try (Directory dir = new ByteBuffersDirectory()) {
      // MockSynonymAnalyzer indexes "dogs" and the synonym "dog" at the same position
      try (IndexWriter w = new IndexWriter(dir, new IndexWriterConfig(new MockSynonymAnalyzer()))) {
        Document doc = new Document();
        doc.add(new Field("f", "my dogs", ft));
        w.addDocument(doc);
      }
      try (DirectoryReader reader = DirectoryReader.open(dir)) {
        // dogs OR "dog house": the document matches through the term "dogs"
        Query query =
            new BooleanQuery.Builder()
                .add(new TermQuery(new Term("f", "dogs")), Occur.SHOULD)
                .add(new PhraseQuery("f", "dog", "house"), Occur.SHOULD)
                .build();
        assertEquals(1, new IndexSearcher(reader).count(query));
        FastVectorHighlighter fvh = new FastVectorHighlighter();
        String fragment =
            fvh.getBestFragment(fvh.getFieldQuery(query, reader), reader, 0, "f", 100);
        assertEquals("my <b>dogs</b>", fragment);
      }
    }
  }
}