package org.apache.rya.indexing.mongo;
/*
 * 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 static org.apache.rya.indexing.GeoIndexingTestUtils.getSet;
import static org.apache.rya.indexing.geotemporal.GeoTemporalTestUtils.bbox;
import static org.apache.rya.indexing.geotemporal.GeoTemporalTestUtils.line;
import static org.apache.rya.indexing.geotemporal.GeoTemporalTestUtils.point;
import static org.apache.rya.indexing.geotemporal.GeoTemporalTestUtils.poly;

import java.util.Map;
import java.util.Set;

import org.apache.rya.api.domain.RyaStatement;
import org.apache.rya.api.resolver.RdfToRyaConversions;
import org.apache.rya.api.resolver.RyaToRdfConversions;
import org.apache.rya.indexing.GeoConstants;
import org.apache.rya.indexing.StatementConstraints;
import org.apache.rya.indexing.accumulo.ConfigUtils;
import org.apache.rya.indexing.accumulo.geo.OptionalConfigUtils;
import org.apache.rya.indexing.mongodb.geo.MongoGeoIndexer;
import org.apache.rya.mongodb.MongoDBRdfConfiguration;
import org.apache.rya.mongodb.MongoRyaITBase;
import org.eclipse.rdf4j.common.iteration.CloseableIteration;
import org.eclipse.rdf4j.model.IRI;
import org.eclipse.rdf4j.model.Resource;
import org.eclipse.rdf4j.model.Statement;
import org.eclipse.rdf4j.model.Value;
import org.eclipse.rdf4j.model.ValueFactory;
import org.eclipse.rdf4j.model.impl.SimpleValueFactory;
import org.junit.Assert;
import org.junit.Test;

import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.geom.Point;
import com.vividsolutions.jts.geom.Polygon;

/**
 * Tests all of the "simple functions" of the geoindexer.
 */
public class MongoGeoIndexerSfIT extends MongoRyaITBase {
    private static final StatementConstraints EMPTY_CONSTRAINTS = new StatementConstraints();

    // Here is the landscape:
    /**
     * <pre>
     *   +---+---+---+---+---+---+---+
     *   |        F          |       |
     *   +  A    +           +   C   +
     *   |                   |       |
     *   +---+---+    E      +---+---+
     *   |       |   /       |
     *   +   B   +  /+---+---+
     *   |       | / |       |
     *   +---+---+/--+---+---+
     *           /   |     D |
     *          /    +---+---+
     * </pre>
     **/

    private static final Polygon A = poly(bbox(0, 1, 4, 5));
    private static final Polygon B = poly(bbox(0, 1, 2, 3));
    private static final Polygon C = poly(bbox(4, 3, 6, 5));
    private static final Polygon D = poly(bbox(3, 0, 5, 2));

    private static final Point F = point(2, 4);

    private static final LineString E = line(2, 0, 3, 3);

    private static final Map<Geometry, String> names = Maps.newHashMap();
    static {
        names.put(A, "A");
        names.put(B, "B");
        names.put(C, "C");
        names.put(D, "D");
        names.put(E, "E");
        names.put(F, "F");
    }

    @Override
	public void updateConfiguration(final MongoDBRdfConfiguration conf) {
        conf.set(ConfigUtils.GEO_PREDICATES_LIST, "http://www.opengis.net/ont/geosparql#asWKT");
        conf.set(OptionalConfigUtils.USE_GEO, "true");
    }

    private static RyaStatement statement(final Geometry geo) {
        final ValueFactory vf = SimpleValueFactory.getInstance();
        final Resource subject = vf.createIRI("uri:" + names.get(geo));
        final IRI predicate = GeoConstants.GEO_AS_WKT;
        final Value object = vf.createLiteral(geo.toString(), GeoConstants.XMLSCHEMA_OGC_WKT);
        return RdfToRyaConversions.convertStatement(vf.createStatement(subject, predicate, object));

    }

    public void compare(final CloseableIteration<Statement, ?> actual, final Geometry... expected) throws Exception {
        final Set<Statement> expectedSet = Sets.newHashSet();
        for (final Geometry geo : expected) {
            expectedSet.add(RyaToRdfConversions.convertStatement(statement(geo)));
        }

        Assert.assertEquals(expectedSet, getSet(actual));
    }

    private static Geometry[] EMPTY_RESULTS = {};

    @Test
    public void testEquals() throws Exception {
        try(final MongoGeoIndexer g = new MongoGeoIndexer()) {
            g.setConf(conf);
            g.init();

            g.storeStatement(statement(A));
            g.storeStatement(statement(B));
            g.storeStatement(statement(C));
            g.storeStatement(statement(D));
            g.storeStatement(statement(F));
            g.storeStatement(statement(E));
            // point
            compare(g.queryEquals(F, EMPTY_CONSTRAINTS), F);
            compare(g.queryEquals(point(2, 2), EMPTY_CONSTRAINTS), EMPTY_RESULTS);

            // line
            compare(g.queryEquals(E, EMPTY_CONSTRAINTS), E);
            compare(g.queryEquals(line(2, 2, 3, 3), EMPTY_CONSTRAINTS), EMPTY_RESULTS);

            // poly
            compare(g.queryEquals(A, EMPTY_CONSTRAINTS), A);
            compare(g.queryEquals(poly(bbox(1, 1, 4, 5)), EMPTY_CONSTRAINTS), EMPTY_RESULTS);
        }
    }

//    @Test
//    public void testDisjoint() throws Exception {
//        // point
//        compare(g.queryDisjoint(F, EMPTY_CONSTRAINTS), B, C, D, E);
//
//        // line
//        compare(g.queryDisjoint(E, EMPTY_CONSTRAINTS), B, C, D, F);
//
//        // poly
//        compare(g.queryDisjoint(A, EMPTY_CONSTRAINTS), EMPTY_RESULTS);
//        compare(g.queryDisjoint(B, EMPTY_CONSTRAINTS), C, D, F, E);
//    }

//    @Test
//    public void testIntersectsPoint() throws Exception {
        // This seems like a bug
        // compare(g.queryIntersects(F, EMPTY_CONSTRAINTS), A, F);
        // compare(g.queryIntersects(F, EMPTY_CONSTRAINTS), EMPTY_RESULTS);
//    }
//
//    @Test
//    public void testIntersectsLine() throws Exception {
        // This seems like a bug
        // compare(g.queryIntersects(E, EMPTY_CONSTRAINTS), A, E);
        // compare(g.queryIntersects(E, EMPTY_CONSTRAINTS), EMPTY_RESULTS);
//    }

//    @Test
//    public void testIntersectsPoly() throws Exception {
//        compare(g.queryIntersects(A, EMPTY_CONSTRAINTS), A, B, C, D, F, E);
//    }

//    @Test
//    public void testTouchesPoint() throws Exception {
//        compare(g.queryTouches(F, EMPTY_CONSTRAINTS), EMPTY_RESULTS);
//    }
//
//    @Test
//    public void testTouchesLine() throws Exception {
//        compare(g.queryTouches(E, EMPTY_CONSTRAINTS), EMPTY_RESULTS);
//    }

//    @Test
//    public void testTouchesPoly() throws Exception {
//        compare(g.queryTouches(A, EMPTY_CONSTRAINTS), C);
//    }

//    @Test
//    public void testCrossesPoint() throws Exception {
//        compare(g.queryCrosses(F, EMPTY_CONSTRAINTS), EMPTY_RESULTS);
//    }

//    @Test
//    public void testCrossesLine() throws Exception {
        // compare(g.queryCrosses(E, EMPTY_CONSTRAINTS), A);
//    }

//    @Test
//    public void testCrossesPoly() throws Exception {
//        compare(g.queryCrosses(A, EMPTY_CONSTRAINTS), E);
//    }

//    @Test
//    public void testWithin() throws Exception {
//        // point
//  //      compare(g.queryWithin(F, EMPTY_CONSTRAINTS), F);
//
//        // line
////        compare(g.queryWithin(E, EMPTY_CONSTRAINTS), E);
//
//        // poly
//        compare(g.queryWithin(A, EMPTY_CONSTRAINTS), A, B, F);
//    }

//    @Test
//    public void testContainsPoint() throws Exception {
//        compare(g.queryContains(F, EMPTY_CONSTRAINTS), A, F);
//    }

//    @Test
//    public void testContainsLine() throws Exception {
        // compare(g.queryContains(E, EMPTY_CONSTRAINTS), E);
//    }

//    @Test
//    public void testContainsPoly() throws Exception {
//        compare(g.queryContains(A, EMPTY_CONSTRAINTS), A);
//        compare(g.queryContains(B, EMPTY_CONSTRAINTS), A, B);
//    }
//
//    @Test
//    public void testOverlapsPoint() throws Exception {
        // compare(g.queryOverlaps(F, EMPTY_CONSTRAINTS), F);
        // You cannot have overlapping points
        // compare(g.queryOverlaps(F, EMPTY_CONSTRAINTS), EMPTY_RESULTS);
//    }

//    @Test
//    public void testOverlapsLine() throws Exception {
        // compare(g.queryOverlaps(E, EMPTY_CONSTRAINTS), A, E);
        // You cannot have overlapping lines
        // compare(g.queryOverlaps(E, EMPTY_CONSTRAINTS), EMPTY_RESULTS);
//    }

//    @Test
//    public void testOverlapsPoly() throws Exception {
//        compare(g.queryOverlaps(A, EMPTY_CONSTRAINTS), D);
//    }

}