/* 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.Diagnostics;
using static OpenSearch.Net.AuditEvent;

namespace OpenSearch.Net
{
	public enum AuditEvent
	{
		SniffOnStartup,
		SniffOnFail,
		SniffOnStaleCluster,

		SniffSuccess,
		SniffFailure,
		PingSuccess,
		PingFailure,

		Resurrection,
		AllNodesDead,
		BadResponse,
		HealthyResponse,

		MaxTimeoutReached,
		MaxRetriesReached,
		BadRequest,
		NoNodesAttempted,
		CancellationRequested,
		FailedOverAllNodes,
	}

	internal static class AuditEventExtensions
	{
		/// <summary>
		/// Returns the name of the event to be used for use in <see cref="DiagnosticSource"/>.
		/// <para>If this return null the event should not be reported on</para>
		/// <para>This indicates this event is monitored by a different component already</para>
		/// </summary>
		/// <returns>The diagnostic event name representation or null if it should go unreported</returns>
		public static string GetAuditDiagnosticEventName(this AuditEvent @event)
		{
			switch(@event)
			{
				case SniffFailure: 
				case SniffSuccess:
				case PingFailure: 
				case PingSuccess: 
				case BadResponse: 
				case HealthyResponse: 
					return null;
				case SniffOnStartup: return nameof(SniffOnStartup);
				case SniffOnFail: return nameof(SniffOnFail);
				case SniffOnStaleCluster: return nameof(SniffOnStaleCluster);
				case Resurrection: return nameof(Resurrection);
				case AllNodesDead: return nameof(AllNodesDead);
				case MaxTimeoutReached: return nameof(MaxTimeoutReached);
				case MaxRetriesReached: return nameof(MaxRetriesReached);
				case BadRequest: return nameof(BadRequest);
				case NoNodesAttempted: return nameof(NoNodesAttempted);
				case CancellationRequested: return nameof(CancellationRequested);
				case FailedOverAllNodes: return nameof(FailedOverAllNodes);
				default: return @event.GetStringValue(); //still cached but uses reflection
			}
		}
		
		
	}
	
}