/* 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.IO;
using System.Linq;
using OpenSearch.OpenSearch.Managed.ConsoleWriters;

namespace OpenSearch.OpenSearch.Ephemeral.Tasks.BeforeStartNodeTasks
{
	public class PrintYamlContents : ClusterComposeTask
	{
		public override void Run(IEphemeralCluster<EphemeralClusterConfiguration> cluster)
		{
			var c = cluster.ClusterConfiguration;
			var v = c.Version;
			var fs = cluster.FileSystem;

			var files = Directory.GetFiles(fs.ConfigPath, "*.yml", SearchOption.AllDirectories);
			foreach (var file in files) DumpFile(cluster, file);
		}

		private static void DumpFile(IEphemeralCluster<EphemeralClusterConfiguration> cluster, string configFile)
		{
			if (!File.Exists(configFile))
			{
				cluster.Writer.WriteDiagnostic(
					$"{{{nameof(PrintYamlContents)}}} skipped printing [{configFile}] as it does not exists");
				return;
			}

			var fileName = Path.GetFileName(configFile);
			cluster.Writer.WriteDiagnostic($"{{{nameof(PrintYamlContents)}}} printing [{configFile}]");
			var lines = File.ReadAllLines(configFile).ToList();
			foreach (var l in lines.Where(l => !string.IsNullOrWhiteSpace(l) && !l.StartsWith("#")))
				cluster.Writer.WriteDiagnostic($"{{{nameof(PrintYamlContents)}}} [{fileName}] {l}");
		}
	}
}