/* 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.Runtime.Serialization;
using OpenSearch.Net.Utf8Json;

namespace OpenSearch.Client
{
	[InterfaceDataContract]
	[ReadAs(typeof(SuggestContextQuery))]
	public interface ISuggestContextQuery
	{
		[DataMember(Name = "boost")]
		double? Boost { get; set; }

		[DataMember(Name = "context")]
		Context Context { get; set; }

		[DataMember(Name = "neighbours")]
		Union<Distance[], int[]> Neighbours { get; set; }

		[DataMember(Name = "precision")]
		Union<Distance, int> Precision { get; set; }

		[DataMember(Name = "prefix")]
		bool? Prefix { get; set; }
	}

	public class SuggestContextQuery : ISuggestContextQuery
	{
		public double? Boost { get; set; }

		public Context Context { get; set; }

		public Union<Distance[], int[]> Neighbours { get; set; }

		public Union<Distance, int> Precision { get; set; }

		public bool? Prefix { get; set; }
	}

	public class SuggestContextQueryDescriptor<T>
		: DescriptorBase<SuggestContextQueryDescriptor<T>, ISuggestContextQuery>, ISuggestContextQuery
	{
		double? ISuggestContextQuery.Boost { get; set; }
		Context ISuggestContextQuery.Context { get; set; }
		Union<Distance[], int[]> ISuggestContextQuery.Neighbours { get; set; }
		Union<Distance, int> ISuggestContextQuery.Precision { get; set; }
		bool? ISuggestContextQuery.Prefix { get; set; }

		public SuggestContextQueryDescriptor<T> Prefix(bool? prefix = true) => Assign(prefix, (a, v) => a.Prefix = v);

		public SuggestContextQueryDescriptor<T> Boost(double? boost) => Assign(boost, (a, v) => a.Boost = v);

		public SuggestContextQueryDescriptor<T> Context(string context) => Assign(context, (a, v) => a.Context = v);

		public SuggestContextQueryDescriptor<T> Context(GeoLocation context) => Assign(context, (a, v) => a.Context = v);

		public SuggestContextQueryDescriptor<T> Precision(Distance precision) => Assign(precision, (a, v) => a.Precision = v);

		public SuggestContextQueryDescriptor<T> Precision(int? precision) => Assign(precision, (a, v) => a.Precision = v);

		public SuggestContextQueryDescriptor<T> Neighbours(params int[] neighbours) => Assign(neighbours, (a, v) => a.Neighbours = v);

		public SuggestContextQueryDescriptor<T> Neighbours(params Distance[] neighbours) => Assign(neighbours, (a, v) => a.Neighbours = v);
	}

	public class SuggestContextQueriesDescriptor<T>
		: DescriptorPromiseBase<SuggestContextQueriesDescriptor<T>, IDictionary<string, IList<ISuggestContextQuery>>>
	{
		public SuggestContextQueriesDescriptor() : base(new Dictionary<string, IList<ISuggestContextQuery>>()) { }

		public SuggestContextQueriesDescriptor<T> Context(string name,
			params Func<SuggestContextQueryDescriptor<T>, ISuggestContextQuery>[] categoryDescriptors
		) =>
			AddContextQueries(name, categoryDescriptors?.Select(d => d?.Invoke(new SuggestContextQueryDescriptor<T>())).ToList());

		private SuggestContextQueriesDescriptor<T> AddContextQueries(string name, List<ISuggestContextQuery> contextQueries)
		{
			if (contextQueries != null)
				PromisedValue.Add(name, contextQueries);

			return this;
		}
	}
}