/*
 * 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.search.aggregations.bucket.range;

import org.elasticsearch.search.aggregations.Aggregator;
import org.elasticsearch.search.aggregations.AggregatorFactories.Builder;
import org.elasticsearch.search.aggregations.AggregatorFactory;
import org.elasticsearch.search.aggregations.CardinalityUpperBound;
import org.elasticsearch.search.aggregations.support.AggregationContext;
import org.elasticsearch.search.aggregations.support.CoreValuesSourceType;
import org.elasticsearch.search.aggregations.support.ValuesSourceAggregatorFactory;
import org.elasticsearch.search.aggregations.support.ValuesSourceConfig;
import org.elasticsearch.search.aggregations.support.ValuesSourceRegistry;

import java.io.IOException;
import java.util.List;
import java.util.Map;

public class BinaryRangeAggregatorFactory extends ValuesSourceAggregatorFactory {

    public static void registerAggregators(ValuesSourceRegistry.Builder builder) {
        builder.register(IpRangeAggregationBuilder.REGISTRY_KEY, CoreValuesSourceType.IP, BinaryRangeAggregator::new, true);
    }

    private final IpRangeAggregatorSupplier aggregatorSupplier;
    private final List<BinaryRangeAggregator.Range> ranges;
    private final boolean keyed;

    public BinaryRangeAggregatorFactory(String name,
            ValuesSourceConfig config,
            List<BinaryRangeAggregator.Range> ranges, boolean keyed,
            AggregationContext context,
            AggregatorFactory parent, Builder subFactoriesBuilder,
            Map<String, Object> metadata,
            IpRangeAggregatorSupplier aggregatorSupplier) throws IOException {
        super(name, config, context, parent, subFactoriesBuilder, metadata);
        this.aggregatorSupplier = aggregatorSupplier;
        this.ranges = ranges;
        this.keyed = keyed;
    }

    @Override
    protected Aggregator createUnmapped(Aggregator parent, Map<String, Object> metadata) throws IOException {
        return new BinaryRangeAggregator(name, factories, null, config.format(),
                ranges, keyed, context, parent, CardinalityUpperBound.NONE, metadata);
    }

    @Override
    protected Aggregator doCreateInternal(
        Aggregator parent,
        CardinalityUpperBound cardinality,
        Map<String, Object> metadata
    ) throws IOException {
        return aggregatorSupplier
            .build(name, factories, config.getValuesSource(), config.format(),
                   ranges, keyed, context, parent, cardinality, metadata);
    }

}
