/* 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 OpenSearch.Net;
using FluentAssertions;
using OpenSearch.Client;
using OpenSearch.Client.Specification.IndicesApi;
using Tests.Configuration;
using Tests.Core.Extensions;
using Tests.Core.ManagedOpenSearch.Clusters;
using Tests.Core.ManagedOpenSearch.NodeSeeders;
using Tests.Domain;
using Tests.Framework.EndpointTests;
using Tests.Framework.EndpointTests.TestState;
using static OpenSearch.Client.Infer;

namespace Tests.Indices.AliasManagement.GetAlias
{
	public class GetAliasApiTests : ApiIntegrationTestBase<ReadOnlyCluster, GetAliasResponse, IGetAliasRequest, GetAliasDescriptor, GetAliasRequest>
	{
		private static readonly Names Names = Names(DefaultSeeder.ProjectsAliasName);

		public GetAliasApiTests(ReadOnlyCluster cluster, EndpointUsage usage) : base(cluster, usage) { }

		protected override bool ExpectIsValid => true;
		protected override int ExpectStatusCode => 200;


		protected override HttpMethod HttpMethod => HttpMethod.GET;
		protected override bool SupportsDeserialization => false;
		protected override string UrlPath => $"_all/_alias/{DefaultSeeder.ProjectsAliasName}";
		
		protected override GetAliasRequest Initializer => new GetAliasRequest(OpenSearch.Client.Indices.All, Names);
		protected override Func<GetAliasDescriptor, IGetAliasRequest> Fluent => d => d.Name(Names);

		protected override LazyResponses ClientUsage() => Calls(
			(client, f) => client.Indices.GetAlias(AllIndices, f),
			(client, f) => client.Indices.GetAliasAsync(AllIndices, f),
			(client, r) => client.Indices.GetAlias(r),
			(client, r) => client.Indices.GetAliasAsync(r)
		);

		protected override void ExpectResponse(GetAliasResponse response)
		{
			response.Indices.Should().NotBeEmpty($"expect to find indices pointing to {DefaultSeeder.ProjectsAliasName}");
			var indexAliases = response.Indices[Index<Project>()];
			indexAliases.Should().NotBeNull("expect to find alias for project");
			indexAliases.Aliases.Should().NotBeEmpty("expect to find aliases dictionary definitions for project");
			var alias = indexAliases.Aliases[DefaultSeeder.ProjectsAliasName];
			alias.Should().NotBeNull();
		}
	}

	public class GetAliasPartialMatchApiTests
		: ApiIntegrationTestBase<ReadOnlyCluster, GetAliasResponse, IGetAliasRequest, GetAliasDescriptor, GetAliasRequest>
	{
		private static readonly Names Names = Names(DefaultSeeder.ProjectsAliasName, "x", "y");

		public GetAliasPartialMatchApiTests(ReadOnlyCluster cluster, EndpointUsage usage) : base(cluster, usage) { }

		protected override bool ExpectIsValid => true;
		protected override int ExpectStatusCode => 404;


		protected override HttpMethod HttpMethod => HttpMethod.GET;
		protected override bool SupportsDeserialization => false;
		protected override string UrlPath => $"_all/_alias/{DefaultSeeder.ProjectsAliasName}%2Cx%2Cy";
		
		protected override GetAliasRequest Initializer => new GetAliasRequest(OpenSearch.Client.Indices.All, Names);
		protected override Func<GetAliasDescriptor, IGetAliasRequest> Fluent => d => d.Name(Names);

		protected override LazyResponses ClientUsage() => Calls(
			(client, f) => client.Indices.GetAlias(AllIndices, f),
			(client, f) => client.Indices.GetAliasAsync(AllIndices, f),
			(client, r) => client.Indices.GetAlias(r),
			(client, r) => client.Indices.GetAliasAsync(r)
		);

		protected override void ExpectResponse(GetAliasResponse response)
		{
			response.Indices.Should().NotBeNull();
			response.Indices.Count.Should().BeGreaterThan(0);
		}
	}

	public class GetAliasNotFoundApiTests
		: ApiIntegrationTestBase<ReadOnlyCluster, GetAliasResponse, IGetAliasRequest, GetAliasDescriptor, GetAliasRequest>
	{
		private static readonly Names Names = Names("bad-alias");

		public GetAliasNotFoundApiTests(ReadOnlyCluster cluster, EndpointUsage usage) : base(cluster, usage) { }
		
		protected override bool SupportsDeserialization => false;

		protected override bool ExpectIsValid => false;
		protected override int ExpectStatusCode => 404;
		protected override HttpMethod HttpMethod => HttpMethod.GET;
		protected override string UrlPath => $"/_all/_alias/bad-alias";
		
		protected override GetAliasRequest Initializer => new GetAliasRequest(AllIndices, Names);
		protected override Func<GetAliasDescriptor, IGetAliasRequest> Fluent => d => d.Name(Names);

		protected override LazyResponses ClientUsage() => Calls(
			(client, f) => client.Indices.GetAlias(AllIndices, f),
			(client, f) => client.Indices.GetAliasAsync(AllIndices, f),
			(client, r) => client.Indices.GetAlias(r),
			(client, r) => client.Indices.GetAliasAsync(r)
		);

		protected override void ExpectResponse(GetAliasResponse response)
		{
			response.ServerError.Should().NotBeNull();
			response.ServerError.Error.Reason.Should().Contain("missing");

			response.IsValid.Should().BeFalse();

			response.Indices.Should().NotBeNull();
			response.Indices.Should().BeEmpty();
		}
	}
}