/*
 * SPDX-License-Identifier: Apache-2.0
 *
 * The OpenSearch Contributors require contributions made to
 * this file be licensed under the Apache-2.0 license or a
 * compatible open source license.
 */

/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.
 */

/*
 * Modifications Copyright OpenSearch Contributors. See
 * GitHub history for details.
 */

package org.opensearch.index.mapper;

import org.opensearch.common.geo.GeometryFormat;
import org.opensearch.common.geo.GeometryParser;
import org.opensearch.common.xcontent.LoggingDeprecationHandler;
import org.opensearch.core.xcontent.NamedXContentRegistry;
import org.opensearch.core.xcontent.XContentParser;
import org.opensearch.common.xcontent.XContentType;
import org.opensearch.core.xcontent.MapXContentParser;
import org.opensearch.geometry.Geometry;

import java.io.IOException;
import java.io.UncheckedIOException;
import java.text.ParseException;
import java.util.Collections;

/**
 * Utility class that parses geo shapes
 *
 * @opensearch.internal
 */
public class GeoShapeParser extends AbstractGeometryFieldMapper.Parser<Geometry> {
    private final GeometryParser geometryParser;

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

    @Override
    public Geometry parse(XContentParser parser) throws IOException, ParseException {
        return geometryParser.parse(parser);
    }

    @Override
    public Object format(Geometry value, String format) {
        return geometryParser.geometryFormat(format).toXContentAsObject(value);
    }

    @Override
    public Object parseAndFormatObject(Object value, String format) {
        try (
            XContentParser parser = new MapXContentParser(
                NamedXContentRegistry.EMPTY,
                LoggingDeprecationHandler.INSTANCE,
                Collections.singletonMap("dummy_field", value),
                XContentType.JSON
            )
        ) {
            parser.nextToken(); // start object
            parser.nextToken(); // field name
            parser.nextToken(); // field value

            GeometryFormat<Geometry> geometryFormat = geometryParser.geometryFormat(parser);
            if (geometryFormat.name().equals(format)) {
                return value;
            }

            Geometry geometry = geometryFormat.fromXContent(parser);
            return format(geometry, format);
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }
}