/* 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 FluentAssertions;
using OpenSearch.Client;
using Tests.Core.Extensions;
using Tests.Core.ManagedOpenSearch.Clusters;
using Tests.Domain;
using Tests.Framework.EndpointTests.TestState;
using static OpenSearch.Client.Infer;

namespace Tests.Aggregations.Metric.Stats
{
	public class StatsAggregationUsageTests : AggregationUsageTestBase<ReadOnlyCluster>
	{
		public StatsAggregationUsageTests(ReadOnlyCluster i, EndpointUsage usage) : base(i, usage) { }

		protected override object AggregationJson => new
		{
			commit_stats = new
			{
				stats = new
				{
					field = "numberOfCommits"
				}
			}
		};

		protected override Func<AggregationContainerDescriptor<Project>, IAggregationContainer> FluentAggs => a => a
			.Stats("commit_stats", st => st
				.Field(p => p.NumberOfCommits)
			);

		protected override AggregationDictionary InitializerAggs =>
			new StatsAggregation("commit_stats", Field<Project>(p => p.NumberOfCommits));

		protected override void ExpectResponse(ISearchResponse<Project> response)
		{
			response.ShouldBeValid();
			var commitStats = response.Aggregations.Stats("commit_stats");
			commitStats.Should().NotBeNull();
			commitStats.Average.Should().BeGreaterThan(0);
			commitStats.Max.Should().BeGreaterThan(0);
			commitStats.Min.Should().BeGreaterThan(0);
			commitStats.Count.Should().BeGreaterThan(0);
			commitStats.Sum.Should().BeGreaterThan(0);
		}
	}
}