/* 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.Collections.Generic;
using System.Linq.Expressions;

namespace OpenSearch.Client
{
	public class FieldsDescriptor<T> : DescriptorPromiseBase<FieldsDescriptor<T>, Fields>
		where T : class
	{
		public FieldsDescriptor() : base(new Fields()) { }

		public FieldsDescriptor<T> Fields(params Expression<Func<T, object>>[] fields) => Assign(fields, (f, v) => f.And(v));

		public FieldsDescriptor<T> Fields(params string[] fields) => Assign(fields,(f, v) => f.And(v));

		public FieldsDescriptor<T> Fields(IEnumerable<Field> fields) => Assign(fields, (f, v) => f.ListOfFields.AddRange(v));

		public FieldsDescriptor<T> Field<TValue>(Expression<Func<T, TValue>> field, double? boost = null, string format = null) =>
			Assign(new Field(field, boost, format), (f, v) => f.And(v));

		public FieldsDescriptor<T> Field(string field, double? boost = null, string format = null) =>
			Assign(new Field(field, boost, format), (f, v) => f.And(v));

		public FieldsDescriptor<T> Field(Field field) => Assign(field, (f, v) => f.And(v));
	}
}