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

namespace OpenSearch.Client
{
	/// <summary>
	/// Limits the number of tokens that are indexed per document and field.
	/// </summary>
	public interface ILimitTokenCountTokenFilter : ITokenFilter
	{
		/// <summary>
		/// If set to true the filter exhaust the stream even if max_token_count tokens have been consumed already.
		/// </summary>
		[DataMember(Name ="consume_all_tokens")]
		[JsonFormatter(typeof(NullableStringBooleanFormatter))]
		bool? ConsumeAllTokens { get; set; }

		/// <summary>
		/// The maximum number of tokens that should be indexed per document and field.
		/// </summary>
		[DataMember(Name ="max_token_count")]
		[JsonFormatter(typeof(NullableStringIntFormatter))]
		int? MaxTokenCount { get; set; }
	}

	/// <inheritdoc />
	public class LimitTokenCountTokenFilter : TokenFilterBase, ILimitTokenCountTokenFilter
	{
		public LimitTokenCountTokenFilter() : base("limit") { }

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

		/// <inheritdoc />
		public int? MaxTokenCount { get; set; }
	}

	/// <inheritdoc />
	public class LimitTokenCountTokenFilterDescriptor
		: TokenFilterDescriptorBase<LimitTokenCountTokenFilterDescriptor, ILimitTokenCountTokenFilter>, ILimitTokenCountTokenFilter
	{
		protected override string Type => "limit";
		bool? ILimitTokenCountTokenFilter.ConsumeAllTokens { get; set; }

		int? ILimitTokenCountTokenFilter.MaxTokenCount { get; set; }

		/// <inheritdoc />
		public LimitTokenCountTokenFilterDescriptor ConsumeAllToken(bool? consumeAllTokens = true) =>
			Assign(consumeAllTokens, (a, v) => a.ConsumeAllTokens = v);

		/// <inheritdoc />
		public LimitTokenCountTokenFilterDescriptor MaxTokenCount(int? maxTokenCount) => Assign(maxTokenCount, (a, v) => a.MaxTokenCount = v);
	}
}