package org.apache.lucene.search.payloads;

/*
 * 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.
 */

import org.apache.lucene.index.Term;
import org.apache.lucene.search.similarities.DefaultSimilarity;
import org.apache.lucene.search.similarities.Similarity;
import org.apache.lucene.search.TestExplanations;
import org.apache.lucene.search.spans.SpanQuery;
import org.apache.lucene.util.BytesRef;

/**
 * TestExplanations subclass focusing on payload queries
 */
public class TestPayloadExplanations extends TestExplanations {
  private PayloadFunction functions[] = new PayloadFunction[] { 
      new AveragePayloadFunction(),
      new MinPayloadFunction(),
      new MaxPayloadFunction(),
  };
  
  @Override
  public void setUp() throws Exception {
    super.setUp();
    searcher.setSimilarity(new DefaultSimilarity() {
      @Override
      public float scorePayload(int doc, int start, int end, BytesRef payload) {
        return 1 + (payload.hashCode() % 10);
      }
    });
  }

  /** macro for payloadtermquery */
  private SpanQuery pt(String s, PayloadFunction fn, boolean includeSpanScore) {
    return new PayloadTermQuery(new Term(FIELD,s), fn, includeSpanScore);
  }
  
  /* simple PayloadTermQueries */
  
  public void testPT1() throws Exception {
    for (PayloadFunction fn : functions) {
      qtest(pt("w1", fn, false), new int[] {0,1,2,3});
      qtest(pt("w1", fn, true), new int[] {0,1,2,3});
    }
  }

  public void testPT2() throws Exception {
    for (PayloadFunction fn : functions) {
      SpanQuery q = pt("w1", fn, false);
      q.setBoost(1000);
      qtest(q, new int[] {0,1,2,3});
      q = pt("w1", fn, true);
      q.setBoost(1000);
      qtest(q, new int[] {0,1,2,3});
    }
  }

  public void testPT4() throws Exception {
    for (PayloadFunction fn : functions) {
      qtest(pt("xx", fn, false), new int[] {2,3});
      qtest(pt("xx", fn, true), new int[] {2,3});
    }
  }

  public void testPT5() throws Exception {
    for (PayloadFunction fn : functions) {
      SpanQuery q = pt("xx", fn, false);
      q.setBoost(1000);
      qtest(q, new int[] {2,3});
      q = pt("xx", fn, true);
      q.setBoost(1000);
      qtest(q, new int[] {2,3});
    }
  }

  // TODO: test the payloadnear query too!
}