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/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */

package org.elasticsearch.index.mapper;

import org.elasticsearch.ElasticsearchParseException;
import org.elasticsearch.common.geo.GeometryNormalizer;
import org.elasticsearch.common.geo.GeometryParser;
import org.elasticsearch.common.geo.Orientation;
import org.elasticsearch.core.CheckedConsumer;
import org.elasticsearch.geometry.Geometry;
import org.elasticsearch.xcontent.XContentParser;

import java.io.IOException;
import java.text.ParseException;
import java.util.function.Consumer;

public class GeoShapeParser extends AbstractGeometryFieldMapper.Parser {
    private final GeometryParser geometryParser;
    private final Orientation orientation;

    public GeoShapeParser(GeometryParser geometryParser, Orientation orientation) {
        this.geometryParser = geometryParser;
        this.orientation = orientation;
    }

    @Override
    public void parse(XContentParser parser, CheckedConsumer consumer, Consumer onMalformed)
        throws IOException {
        try {
            if (parser.currentToken() == XContentParser.Token.START_ARRAY) {
                while (parser.nextToken() != XContentParser.Token.END_ARRAY) {
                    parse(parser, consumer, onMalformed);
                }
            } else {
                consumer.accept(geometryParser.parse(parser));
            }
        } catch (ParseException | ElasticsearchParseException | IllegalArgumentException e) {
            onMalformed.accept(e);
        }
    }

    @Override
    public Geometry normalizeFromSource(Geometry geometry) {
        // GeometryNormalizer contains logic for validating the input geometry,
        // so it needs to be run always at indexing time. When run over source we can skip
        // the validation, and we run normalization (which is expensive) only when we need
        // to split geometries around the dateline.
        if (GeometryNormalizer.needsNormalize(orientation, geometry)) {
            return GeometryNormalizer.apply(orientation, geometry);
        } else {
            return geometry;
        }
    }
}