/* 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;

namespace OpenSearch.Client
{
	/// <summary>
	/// An ICU analyzer that performs basic normalization, tokenization and character folding,
	/// using the <see cref="IIcuNormalizationCharFilter" /> char filter,
	/// <see cref="IIcuTokenizer" /> and <see cref="IcuNormalizationTokenFilter" /> token filter
	/// </summary>
	/// <remarks>
	/// Requires analysis-icu plugin to be installed
	/// </remarks>
	public interface IIcuAnalyzer : IAnalyzer
	{
		/// <summary>
		/// Normalization method. Default is <see cref="IcuNormalizationType.CompatibilityCaseFold" />
		/// </summary>
		[DataMember(Name = "method")]
		IcuNormalizationType? Method { get; set; }

		/// <summary>
		/// Normalization mode. Default is <see cref="IcuNormalizationMode.Compose" />
		/// </summary>
		[DataMember(Name = "mode")]
		IcuNormalizationMode? Mode { get; set; }
	}

	/// <inheritdoc cref="IIcuAnalyzer" />
	public class IcuAnalyzer : AnalyzerBase, IIcuAnalyzer
	{
		public IcuAnalyzer() : base("icu_analyzer") { }

		/// <inheritdoc />
		public IcuNormalizationType? Method { get; set; }

		/// <inheritdoc />
		public IcuNormalizationMode? Mode { get; set; }
	}

	/// <inheritdoc cref="IIcuAnalyzer" />
	public class IcuAnalyzerDescriptor : AnalyzerDescriptorBase<IcuAnalyzerDescriptor, IIcuAnalyzer>, IIcuAnalyzer
	{
		protected override string Type => "icu_analyzer";

		IcuNormalizationType? IIcuAnalyzer.Method { get; set; }
		IcuNormalizationMode? IIcuAnalyzer.Mode { get; set; }

		/// <inheritdoc cref="IIcuAnalyzer.Method" />
		public IcuAnalyzerDescriptor Method(IcuNormalizationType? method) => Assign(method, (a, v) => a.Method = v);

		/// <inheritdoc cref="IIcuAnalyzer.Mode" />
		public IcuAnalyzerDescriptor Mode(IcuNormalizationMode? mode) => Assign(mode, (a, v) => a.Mode = v);
	}
}