/* 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.Collections.Generic;
using System.Runtime.Serialization;
using OpenSearch.Net.Utf8Json;

namespace OpenSearch.Client
{
	/// <summary>
	/// A token filter which removes elisions. For example, “l’avion” (the plane) will tokenized as “avion” (plane).
	/// </summary>
	public interface IElisionTokenFilter : ITokenFilter
	{
		/// <summary>
		/// Accepts articles setting which is a set of stop words articles
		/// </summary>
		[DataMember(Name = "articles")]
		IEnumerable<string> Articles { get; set; }

		/// <summary>
		/// Whether articles should be handled case-insensitively. Defaults to <c>false</c>.
		/// </summary>
		[DataMember(Name = "articles_case")]
		[JsonFormatter(typeof(NullableStringBooleanFormatter))]
		bool? ArticlesCase { get; set; }
	}

	/// <inheritdoc cref="IElisionTokenFilter" />
	public class ElisionTokenFilter : TokenFilterBase, IElisionTokenFilter
	{
		public ElisionTokenFilter() : base("elision") { }

		/// <inheritdoc />
		public IEnumerable<string> Articles { get; set; }

		/// <inheritdoc />
		public bool? ArticlesCase { get; set; }
	}

	/// <inheritdoc cref="IElisionTokenFilter" />
	public class ElisionTokenFilterDescriptor
		: TokenFilterDescriptorBase<ElisionTokenFilterDescriptor, IElisionTokenFilter>, IElisionTokenFilter
	{
		protected override string Type => "elision";

		IEnumerable<string> IElisionTokenFilter.Articles { get; set; }
		bool? IElisionTokenFilter.ArticlesCase { get; set; }

		/// <inheritdoc cref="IElisionTokenFilter.Articles"/>
		public ElisionTokenFilterDescriptor Articles(IEnumerable<string> articles) => Assign(articles, (a, v) => a.Articles = v);

		/// <inheritdoc cref="IElisionTokenFilter.Articles"/>
		public ElisionTokenFilterDescriptor Articles(params string[] articles) => Assign(articles, (a, v) => a.Articles = v);

		/// <inheritdoc cref="IElisionTokenFilter.ArticlesCase"/>
		public ElisionTokenFilterDescriptor ArticlesCase(bool? articlesCase = true) => Assign(articlesCase, (a, v) => a.ArticlesCase = v);
	}
}