/*
 * 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.spatial.prefix;

import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.spatial.prefix.tree.QuadPrefixTree;
import org.apache.lucene.store.ByteBuffersDirectory;
import org.apache.lucene.tests.util.LuceneTestCase;
import org.locationtech.spatial4j.context.SpatialContext;
import org.locationtech.spatial4j.context.SpatialContextFactory;
import org.locationtech.spatial4j.shape.Circle;
import org.locationtech.spatial4j.shape.impl.RectangleImpl;

public class TestHeatmapAncestorCellsOutsideInputShape extends LuceneTestCase {

  public void testCoarseLeafCountedOutsideCircleInput() throws Exception {
    SpatialContextFactory factory = new SpatialContextFactory();
    factory.geo = false;
    factory.worldBounds = new RectangleImpl(-90, 90, -90, 90, null);
    SpatialContext ctx = factory.newSpatialContext();
    RecursivePrefixTreeStrategy strategy =
        new RecursivePrefixTreeStrategy(new QuadPrefixTree(ctx, 4), "geo");

    try (ByteBuffersDirectory dir = new ByteBuffersDirectory();
        IndexWriter w = new IndexWriter(dir, new IndexWriterConfig())) {
      Document doc = new Document();
      for (Field f : strategy.createIndexableFields(ctx.getShapeFactory().rect(45, 90, 45, 90))) {
        doc.add(f);
      }
      w.addDocument(doc);
      try (DirectoryReader reader = DirectoryReader.open(w)) {
        Circle circle = ctx.getShapeFactory().circle(0, 0, 89);
        HeatmapFacetCounter.Heatmap heatmap =
            strategy.calcFacets(reader.getContext(), null, circle, 4, 1000);
        // top-right cell [78.75,90]x[78.75,90] is disjoint from the circle: expected 0, actual 1
        assertEquals(0, heatmap.getCount(heatmap.columns - 1, heatmap.rows - 1));
      }
    }
  }
}