/* 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
{
	[InterfaceDataContract]
	[JsonFormatter(typeof(FieldNameQueryFormatter<MatchPhrasePrefixQuery, IMatchPhrasePrefixQuery>))]
	public interface IMatchPhrasePrefixQuery : IFieldNameQuery
	{
		[DataMember(Name = "analyzer")]
		string Analyzer { get; set; }

		[DataMember(Name = "max_expansions")]
		int? MaxExpansions { get; set; }

		[DataMember(Name = "query")]
		string Query { get; set; }

		[DataMember(Name = "slop")]
		int? Slop { get; set; }

		/// <summary>
		/// If the analyzer used removes all tokens in a query like a stop filter does, the default behavior is
		/// to match no documents at all. In order to change that, <see cref="Client.ZeroTermsQuery" /> can be used,
		/// which accepts <see cref="Client.ZeroTermsQuery.None" /> (default) and <see cref="Client.ZeroTermsQuery.All" />
		/// which corresponds to a match_all query.
		/// </summary>
		[DataMember(Name = "zero_terms_query")]
		ZeroTermsQuery? ZeroTermsQuery { get; set; }
	}

	public class MatchPhrasePrefixQuery : FieldNameQueryBase, IMatchPhrasePrefixQuery
	{
		public string Analyzer { get; set; }
		public int? MaxExpansions { get; set; }
		public string Query { get; set; }
		public int? Slop { get; set; }

		/// <inheritdoc />
		public ZeroTermsQuery? ZeroTermsQuery { get; set; }

		protected override bool Conditionless => IsConditionless(this);

		internal override void InternalWrapInContainer(IQueryContainer c) => c.MatchPhrasePrefix = this;

		internal static bool IsConditionless(IMatchPhrasePrefixQuery q) => q.Field.IsConditionless() || q.Query.IsNullOrEmpty();
	}

	public class MatchPhrasePrefixQueryDescriptor<T>
		: FieldNameQueryDescriptorBase<MatchPhrasePrefixQueryDescriptor<T>, IMatchPhrasePrefixQuery, T>, IMatchPhrasePrefixQuery
		where T : class
	{
		protected override bool Conditionless => MatchPhrasePrefixQuery.IsConditionless(this);
		string IMatchPhrasePrefixQuery.Analyzer { get; set; }
		int? IMatchPhrasePrefixQuery.MaxExpansions { get; set; }

		string IMatchPhrasePrefixQuery.Query { get; set; }
		int? IMatchPhrasePrefixQuery.Slop { get; set; }
		ZeroTermsQuery? IMatchPhrasePrefixQuery.ZeroTermsQuery { get; set; }

		public MatchPhrasePrefixQueryDescriptor<T> Query(string query) => Assign(query, (a, v) => a.Query = v);

		public MatchPhrasePrefixQueryDescriptor<T> Analyzer(string analyzer) => Assign(analyzer, (a, v) => a.Analyzer = v);

		public MatchPhrasePrefixQueryDescriptor<T> MaxExpansions(int? maxExpansions) => Assign(maxExpansions, (a, v) => a.MaxExpansions = v);

		public MatchPhrasePrefixQueryDescriptor<T> Slop(int? slop) => Assign(slop, (a, v) => a.Slop = v);

		/// <inheritdoc cref="IMatchQuery.ZeroTermsQuery" />
		public MatchPhrasePrefixQueryDescriptor<T> ZeroTermsQuery(ZeroTermsQuery? zeroTermsQuery) => Assign(zeroTermsQuery, (a, v) => a.ZeroTermsQuery = v);
	}
}