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

namespace Tests.Search.FieldCapabilities
{
	public class FieldCapabilitiesApiTests
		: ApiIntegrationTestBase<ReadOnlyCluster, FieldCapabilitiesResponse, IFieldCapabilitiesRequest, FieldCapabilitiesDescriptor,
			FieldCapabilitiesRequest>
	{
		public FieldCapabilitiesApiTests(ReadOnlyCluster cluster, EndpointUsage usage) : base(cluster, usage) { }

		protected override bool ExpectIsValid => true;

		protected override int ExpectStatusCode => 200;

		protected override Func<FieldCapabilitiesDescriptor, IFieldCapabilitiesRequest> Fluent => d => d
			.Fields(Fields<Project>(p => p.Name).And("*"));

		protected override HttpMethod HttpMethod => HttpMethod.GET;

		protected override FieldCapabilitiesRequest Initializer => new FieldCapabilitiesRequest(Index<Project>().And<Developer>())
		{
			Fields = Fields<Project>(p => p.Name).And("*"),
		};

		protected override string UrlPath => "/project%2Cdevs/_field_caps?fields=name%2C%2A";

		protected override LazyResponses ClientUsage() => Calls(
			(c, f) => c.FieldCapabilities(Index<Project>().And<Developer>(), f),
			(c, f) => c.FieldCapabilitiesAsync(Index<Project>().And<Developer>(), f),
			(c, r) => c.FieldCapabilities(r),
			(c, r) => c.FieldCapabilitiesAsync(r)
		);

		protected override void ExpectResponse(FieldCapabilitiesResponse response)
		{

			var sourceField = response.Fields.First(kv => kv.Value.Source != null).Value.Source;
			sourceField.Aggregatable.Should().BeFalse();
			sourceField.Searchable.Should().BeFalse();

			response.Fields.Should().ContainKey("_index");
			var indexField = response.Fields["_index"].Index;
			indexField.Should().NotBeNull();

			indexField.Aggregatable.Should().BeTrue();
			indexField.Searchable.Should().BeTrue();

			response.Fields.Should().ContainKey("jobTitle.keyword");
			var jobTitleCapabilities = response.Fields["jobTitle.keyword"].Keyword;
			jobTitleCapabilities.Aggregatable.Should().BeTrue();
			jobTitleCapabilities.Searchable.Should().BeTrue();

			jobTitleCapabilities = response.Fields[Field<Developer>(p => p.JobTitle.Suffix("keyword"))].Keyword;
			jobTitleCapabilities.Aggregatable.Should().BeTrue();
			jobTitleCapabilities.Searchable.Should().BeTrue();
		}
	}

	public class FieldCapabilitiesIndexFilterApiTests
		: ApiIntegrationTestBase<ReadOnlyCluster, FieldCapabilitiesResponse, IFieldCapabilitiesRequest, FieldCapabilitiesDescriptor,
			FieldCapabilitiesRequest>
	{
		public FieldCapabilitiesIndexFilterApiTests(ReadOnlyCluster cluster, EndpointUsage usage) : base(cluster, usage) { }

		protected override object ExpectJson => new
		{
			index_filter = new
			{
				term = new
				{
					versionControl = new
					{
						value = "git"
					}
				}
			}
		};

		protected override bool SupportsDeserialization { get; } = false;

		protected override bool ExpectIsValid => true;

		protected override int ExpectStatusCode => 200;

		protected override Func<FieldCapabilitiesDescriptor, IFieldCapabilitiesRequest> Fluent => d => d
			.Fields("*")
			.IndexFilter<Project>(q => q
				.Term(t => t
					.Field(f => f.VersionControl)
					.Value(Project.VersionControlConstant)
				)
			);

		protected override HttpMethod HttpMethod => HttpMethod.POST;

		protected override FieldCapabilitiesRequest Initializer => new FieldCapabilitiesRequest(Index<Project>().And<Developer>())
		{
			Fields = "*",
			IndexFilter = new TermQuery
			{
				Field = Field<Project>(f => f.VersionControl),
				Value = Project.VersionControlConstant
			}
		};

		protected override string UrlPath => "/project%2Cdevs/_field_caps?fields=%2A";

		protected override LazyResponses ClientUsage() => Calls(
			(c, f) => c.FieldCapabilities(Index<Project>().And<Developer>(), f),
			(c, f) => c.FieldCapabilitiesAsync(Index<Project>().And<Developer>(), f),
			(c, r) => c.FieldCapabilities(r),
			(c, r) => c.FieldCapabilitiesAsync(r)
		);

		protected override void ExpectResponse(FieldCapabilitiesResponse response) => response.ShouldBeValid();
	}
}