/* 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;

namespace OpenSearch.Client.Specification.IndicesApi
{
	public interface ITranslogSettings
	{
		/// <summary>
		/// Whether or not to fsync and commit the translog after every index, delete, update, or bulk request
		/// </summary>
		TranslogDurability? Durability { get; set; }

		/// <summary>
		/// Dynamically updatable flush settings
		/// </summary>
		ITranslogFlushSettings Flush { get; set; }

		/// <summary>
		/// How often the translog is fsynced to disk and committed, regardless of write operations. Defaults to 5s.
		/// </summary>
		Time SyncInterval { get; set; }
	}

	public class TranslogSettings : ITranslogSettings
	{
		/// <inheritdoc />
		public TranslogDurability? Durability { get; set; }

		/// <inheritdoc />
		public ITranslogFlushSettings Flush { get; set; }

		/// <inheritdoc />
		public Time SyncInterval { get; set; }
	}

	public class TranslogSettingsDescriptor : DescriptorBase<TranslogSettingsDescriptor, ITranslogSettings>, ITranslogSettings
	{
		TranslogDurability? ITranslogSettings.Durability { get; set; }
		ITranslogFlushSettings ITranslogSettings.Flush { get; set; }
		Time ITranslogSettings.SyncInterval { get; set; }

		/// <inheritdoc />
		public TranslogSettingsDescriptor Flush(Func<TranslogFlushSettingsDescriptor, ITranslogFlushSettings> selector) =>
			Assign(selector, (a, v) => a.Flush = v?.Invoke(new TranslogFlushSettingsDescriptor()));

		/// <inheritdoc />
		public TranslogSettingsDescriptor Durability(TranslogDurability? durability) =>
			Assign(durability, (a, v) => a.Durability = v);

		/// <inheritdoc />
		public TranslogSettingsDescriptor SyncInterval(Time time) =>
			Assign(time, (a, v) => a.SyncInterval = v);
	}
}