/* 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 OpenSearch.OpenSearch.Xunit.XunitPlumbing;
using FluentAssertions;
using OpenSearch.Client;
using Tests.Core.ManagedOpenSearch.Clusters;
using Tests.Domain;
using Tests.Framework.EndpointTests.TestState;

namespace Tests.QueryDsl.TermLevel.Term
{
	public class TermQueryUsageTests : QueryDslUsageTestsBase
	{
		public TermQueryUsageTests(ReadOnlyCluster cluster, EndpointUsage usage) : base(cluster, usage) { }

		protected override ConditionlessWhen ConditionlessWhen => new ConditionlessWhen<ITermQuery>(q => q.Term)
		{
			q => q.Field = null,
			q => q.Value = "  ",
			q => q.Value = null
		};

		protected override QueryContainer QueryInitializer => new TermQuery
		{
			Name = "named_query",
			Boost = 1.1,
			Field = "description",
			Value = "project description"
		};

		protected override object QueryJson => new
		{
			term = new
			{
				description = new
				{
					_name = "named_query",
					boost = 1.1,
					value = "project description"
				}
			}
		};

		protected override QueryContainer QueryFluent(QueryContainerDescriptor<Project> q) => q
			.Term(c => c
				.Name("named_query")
				.Boost(1.1)
				.Field(p => p.Description)
				.Value("project description")
			);

		//hide
		[U] public void DeserializeShortForm()
		{
			using var stream = new MemoryStream(ShortFormQuery);
			var query = Client.RequestResponseSerializer.Deserialize<ITermQuery>(stream);
			query.Should().NotBeNull();
			query.Field.Should().Be(new Field("description"));
			query.Value.Should().Be("project description");
		}
	}

	/**[float]
	*== Verbatim term query
	 *
	 * By default an empty term is conditionless so will be rewritten. Sometimes sending an empty term to
	 * match nothing makes sense. You can either use the `ConditionlessQuery` construct from OSC to provide a fallback or make the
	 * query verbatim as followed:
	*/
	public class VerbatimTermQueryUsageTests : TermQueryUsageTests
	{
		public VerbatimTermQueryUsageTests(ReadOnlyCluster cluster, EndpointUsage usage) : base(cluster, usage) { }

		protected override ConditionlessWhen ConditionlessWhen => null;

		protected override QueryContainer QueryInitializer => new TermQuery
		{
			IsVerbatim = true,
			Field = "description",
			Value = "",
		};

		protected override object QueryJson => new
		{
			term = new
			{
				description = new
				{
					value = ""
				}
			}
		};

		//when reading back the json the notion of is conditionless is lost
		protected override bool SupportsDeserialization => false;

		protected override QueryContainer QueryFluent(QueryContainerDescriptor<Project> q) => q
			.Term(c => c
				.Verbatim()
				.Field(p => p.Description)
				.Value(string.Empty)
			);
	}

	public class TermQueryWithCaseInsensitiveUsageTests : QueryDslUsageTestsBase
	{
		public TermQueryWithCaseInsensitiveUsageTests(ReadOnlyCluster cluster, EndpointUsage usage) : base(cluster, usage) { }

		protected override ConditionlessWhen ConditionlessWhen => new ConditionlessWhen<ITermQuery>(q => q.Term)
		{
			q => q.Field = null,
			q => q.Value = "  ",
			q => q.Value = null
		};

		protected override QueryContainer QueryInitializer => new TermQuery
		{
			Name = "named_query",
			Boost = 1.1,
			Field = "description",
			Value = "project description",
			CaseInsensitive = true
		};

		protected override object QueryJson => new
		{
			term = new
			{
				description = new
				{
					_name = "named_query",
					boost = 1.1,
					value = "project description",
					case_insensitive = true
				}
			}
		};

		protected override QueryContainer QueryFluent(QueryContainerDescriptor<Project> q) => q
			.Term(c => c
				.Name("named_query")
				.Boost(1.1)
				.Field(p => p.Description)
				.Value("project description")
				.CaseInsensitive(true)
			);

		//hide
		[U]
		public void DeserializeShortForm()
		{
			using var stream = new MemoryStream(ShortFormQuery);
			var query = Client.RequestResponseSerializer.Deserialize<ITermQuery>(stream);
			query.Should().NotBeNull();
			query.Field.Should().Be(new Field("description"));
			query.Value.Should().Be("project description");
		}
	}
}