/* 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.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using OpenSearch.OpenSearch.Xunit.XunitPlumbing;
using OpenSearch.Net;
using FluentAssertions;
using OpenSearch.Client;
using Tests.Core.Extensions;
using Tests.Core.ManagedOpenSearch.Clusters;
using Tests.Framework.EndpointTests;
using Tests.Framework.EndpointTests.TestState;

namespace Tests.Modules.Scripting.ExecutePainlessScript
{
	public class ExecutePainlessScriptApiTests
		: ApiIntegrationTestBase<ReadOnlyCluster, ExecutePainlessScriptResponse<string>, IExecutePainlessScriptRequest,
			ExecutePainlessScriptDescriptor, ExecutePainlessScriptRequest>
	{
		private static readonly string _painlessScript = "params.count / params.total";

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

		protected override bool ExpectIsValid => true;

		protected override object ExpectJson => new
		{
			script = new
			{
				source = _painlessScript,
				@params = new { count = 100.0, total = 1000.0 }
			},
		};

		protected override int ExpectStatusCode => 200;

		protected override Func<ExecutePainlessScriptDescriptor, IExecutePainlessScriptRequest> Fluent => d => d
			.Script(s => s
				.Source(_painlessScript)
				.Params(p => p.Add("count", 100.0).Add("total", 1000.0))
			);

		protected override HttpMethod HttpMethod => HttpMethod.POST;

		protected override ExecutePainlessScriptRequest Initializer => new ExecutePainlessScriptRequest
		{
			Script = new InlineScript(_painlessScript)
			{
				Params = new Dictionary<string, object>
				{
					{ "count", 100.0 },
					{ "total", 1000.0 },
				}
			}
		};

		protected override bool SupportsDeserialization => false;
		protected override string UrlPath => "/_scripts/painless/_execute";

		protected override LazyResponses ClientUsage() => Calls(
			(client, f) => client.ExecutePainlessScript<string>(f),
			(client, f) => client.ExecutePainlessScriptAsync<string>(f),
			(client, r) => client.ExecutePainlessScript<string>(r),
			(client, r) => client.ExecutePainlessScriptAsync<string>(r)
		);

		protected override void ExpectResponse(ExecutePainlessScriptResponse<string> response)
		{
			response.ShouldBeValid();
			response.Result.Should().NotBeNullOrWhiteSpace();
		}
	}

	public class ExecutePainlessScriptContextApiTests
		: ApiIntegrationTestBase<WritableCluster, ExecutePainlessScriptResponse<double>, IExecutePainlessScriptRequest,
			ExecutePainlessScriptDescriptor, ExecutePainlessScriptRequest>
	{
		private static readonly string _painlessScript = "doc['rank'].value / params.max_rank";

		public ExecutePainlessScriptContextApiTests(WritableCluster cluster, EndpointUsage usage) : base(cluster, usage) { }

		protected override bool ExpectIsValid => true;

		protected override object ExpectJson => new
		{
			context = "score",
			context_setup = new
			{
				document = new { rank = 4 },
				index = UniqueValues.FixedForAllCallsValue,
				query = new { match_all = new { } }
			},
			script = new
			{
				source = _painlessScript,
				@params = new { max_rank = 5.0 }
			},
		};

		protected override int ExpectStatusCode => 200;

		protected override Func<ExecutePainlessScriptDescriptor, IExecutePainlessScriptRequest> Fluent => d => d
			.ContextSetup(cs => cs
				.Index(UniqueValues.FixedForAllCallsValue)
				.Document(new ScriptDocument { Rank = 4 })
				.Query<ScriptDocument>(q => q.MatchAll())
			)
			.Context("score")
			.Script(s => s
				.Source(_painlessScript)
				.Params(p => p.Add("max_rank", 5.0))
			);

		protected override HttpMethod HttpMethod => HttpMethod.POST;

		protected override ExecutePainlessScriptRequest Initializer => new ExecutePainlessScriptRequest
		{
			ContextSetup = new PainlessContextSetup
			{
				Index = UniqueValues.FixedForAllCallsValue,
				Document = new ScriptDocument { Rank = 4 },
				Query = new MatchAllQuery()
			},
			Context = "score",
			Script = new InlineScript(_painlessScript)
			{
				Params = new Dictionary<string, object>
				{
					{ "max_rank", 5.0 },
				}
			}
		};

		protected override bool SupportsDeserialization => false;
		protected override string UrlPath => "/_scripts/painless/_execute";

		protected override LazyResponses ClientUsage() => Calls(
			(client, f) => client.ExecutePainlessScript<double>(f),
			(client, f) => client.ExecutePainlessScriptAsync<double>(f),
			(client, r) => client.ExecutePainlessScript<double>(r),
			(client, r) => client.ExecutePainlessScriptAsync<double>(r)
		);

		protected override void IntegrationSetup(IOpenSearchClient client, CallUniqueValues values)
		{
			var create = client.Indices.Create(values.FixedForAllCallsValue, c => c.Map<ScriptDocument>(m => m.AutoMap()));
			create.ShouldBeValid();
		}

		protected override void ExpectResponse(ExecutePainlessScriptResponse<double> response)
		{
			response.ShouldBeValid();
			response.Result.Should().BeGreaterOrEqualTo(0);
		}

		[SuppressMessage("ReSharper", "UnusedMember.Local")]
		[SuppressMessage("ReSharper", "UnusedAutoPropertyAccessor.Local")]
		private class ScriptDocument
		{
			public string Field { get; set; }
			public long Rank { get; set; }
		}
	}
}