/* 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.Linq.Expressions;
using System.Runtime.Serialization;

namespace OpenSearch.Client
{
	/// <summary>
	/// Matches terms that start with a specified set of characters. This prefix can expand to match at most 128 terms.
	/// If the prefix matches more than 128 terms, OpenSearch returns an error.
	/// You can use the index-prefixes option in the field mapping to avoid this limit.
	/// </summary>
	[ReadAs(typeof(IntervalsPrefix))]
	public interface IIntervalsPrefix : IIntervalsNoFilter
	{
		/// <summary>
		/// Analyzer used to normalize the prefix. Defaults to the top-level field's analyzer.
		/// </summary>
		[DataMember(Name = "analyzer")]
		string Analyzer { get; set; }

		/// <summary>
		/// Beginning characters of terms you wish to find in the top-level field
		/// </summary>
		[DataMember(Name = "prefix")]
		string Prefix { get; set; }

		/// <summary>
		/// If specified, then match intervals from this field rather than the top-level field.
		/// The prefix is normalized using the search analyzer from this field, unless a separate analyzer is specified.
		/// </summary>
		[DataMember(Name = "use_field")]
		Field UseField { get; set; }
	}

	/// <inheritdoc cref="IIntervalsPrefix" />
	public class IntervalsPrefix : IntervalsNoFilterBase, IIntervalsPrefix
	{
		/// <inheritdoc />
		public string Analyzer { get; set; }

		/// <inheritdoc />
		public string Prefix { get; set; }

		/// <inheritdoc />
		public Field UseField { get; set; }

		internal override void WrapInContainer(IIntervalsContainer container) => container.Prefix = this;
	}

	/// <inheritdoc cref="IIntervalsPrefix" />
	public class IntervalsPrefixDescriptor : DescriptorBase<IntervalsPrefixDescriptor, IIntervalsPrefix>, IIntervalsPrefix
	{
		string IIntervalsPrefix.Analyzer { get; set; }
		string IIntervalsPrefix.Prefix { get; set; }
		Field IIntervalsPrefix.UseField { get; set; }

		/// <inheritdoc cref="IIntervalsPrefix.Analyzer" />
		public IntervalsPrefixDescriptor Analyzer(string analyzer) => Assign(analyzer, (a, v) => a.Analyzer = v);

		/// <inheritdoc cref="IIntervalsPrefix.Prefix" />
		public IntervalsPrefixDescriptor Prefix(string prefix) => Assign(prefix, (a, v) => a.Prefix = v);

		/// <inheritdoc cref="IIntervalsPrefix.UseField" />
		public IntervalsPrefixDescriptor UseField<T>(Expression<Func<T, object>> objectPath) => Assign(objectPath, (a, v) => a.UseField = v);

		/// <inheritdoc cref="IIntervalsPrefix.UseField" />
		public IntervalsPrefixDescriptor UseField(Field useField) => Assign(useField, (a, v) => a.UseField = v);
	}
}