/* 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.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*
*  Licensed to Elasticsearch B.V. under one or more contributor
*  license agreements. See the NOTICE file distributed with
*  this work for additional information regarding copyright
*  ownership. Elasticsearch B.V. 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.
*/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Runtime.Serialization;
using OpenSearch.Net.Utf8Json;

namespace OpenSearch.Client
{
	[InterfaceDataContract]
	[ReadAs(typeof(GeoDistanceAggregation))]
	public interface IGeoDistanceAggregation : IBucketAggregation
	{
		[DataMember(Name ="distance_type")]
		GeoDistanceType? DistanceType { get; set; }

		[DataMember(Name ="field")]
		Field Field { get; set; }

		[DataMember(Name ="origin")]
		GeoLocation Origin { get; set; }

		[DataMember(Name ="ranges")]
		IEnumerable<IAggregationRange> Ranges { get; set; }

		[DataMember(Name ="unit")]
		DistanceUnit? Unit { get; set; }
	}

	public class GeoDistanceAggregation : BucketAggregationBase, IGeoDistanceAggregation
	{
		internal GeoDistanceAggregation() { }

		public GeoDistanceAggregation(string name) : base(name) { }

		public GeoDistanceType? DistanceType { get; set; }
		public Field Field { get; set; }

		public GeoLocation Origin { get; set; }

		public IEnumerable<IAggregationRange> Ranges { get; set; }

		public DistanceUnit? Unit { get; set; }

		internal override void WrapInContainer(AggregationContainer c) => c.GeoDistance = this;
	}

	public class GeoDistanceAggregationDescriptor<T>
		: BucketAggregationDescriptorBase<GeoDistanceAggregationDescriptor<T>, IGeoDistanceAggregation, T>
			, IGeoDistanceAggregation
		where T : class
	{
		GeoDistanceType? IGeoDistanceAggregation.DistanceType { get; set; }
		Field IGeoDistanceAggregation.Field { get; set; }

		GeoLocation IGeoDistanceAggregation.Origin { get; set; }

		IEnumerable<IAggregationRange> IGeoDistanceAggregation.Ranges { get; set; }

		DistanceUnit? IGeoDistanceAggregation.Unit { get; set; }

		public GeoDistanceAggregationDescriptor<T> Field(Field field) => Assign(field, (a, v) => a.Field = v);

		public GeoDistanceAggregationDescriptor<T> Field<TValue>(Expression<Func<T, TValue>> field) => Assign(field, (a, v) => a.Field = v);

		public GeoDistanceAggregationDescriptor<T> Origin(double lat, double lon) => Assign(new GeoLocation(lat, lon), (a, v) => a.Origin = v);

		public GeoDistanceAggregationDescriptor<T> Origin(GeoLocation geoLocation) => Assign(geoLocation, (a, v) => a.Origin = v);

		public GeoDistanceAggregationDescriptor<T> Unit(DistanceUnit? unit) => Assign(unit, (a, v) => a.Unit = v);

		public GeoDistanceAggregationDescriptor<T> DistanceType(GeoDistanceType? geoDistance) => Assign(geoDistance, (a, v) => a.DistanceType = v);

		public GeoDistanceAggregationDescriptor<T> Ranges(params Func<AggregationRangeDescriptor, IAggregationRange>[] ranges) =>
			Assign(ranges?.Select(r => r(new AggregationRangeDescriptor())), (a, v) => a.Ranges = v);
	}
}