using System;
using System.Threading.Tasks;
using System.Collections.Generic;
using System.Linq;
using System.Text.Json;
using Moq;
using NUnit.Framework;
using LCU.API.Internal.DocumentIngestor.Services.MicroApiServices;
using LCU.API.Internal.DocumentIngestor.Services.IndexParserServices;
using LCU.Library.Internal.DocumentIngestorModels.Models;
using LCU.Library.Internal.DocumentIngestorModels.Enums;
using LCU.Library.Internal.DocumentIngestorModels.Models.IndexFileDocuments;
using LCU.Library.Internal.LCUServiceFactory.Configurations;

namespace LCU.API.Internal.DocumentIngestorTests.Services.IndexParserServices;

public class FosDnaDocumentIndexServiceTest
{
	private FosDnaDocumentIndexService _fosDnaDocumentIndexService;
	private Mock<IFileOperationsApiService> _mockFileOperationsApiService;

	[SetUp]
	public void Setup()
	{
		_mockFileOperationsApiService = new Mock<IFileOperationsApiService>();
		var serviceFactoryConfiguration = new ServicesFactoryConfiguration
		{
			ServiceFactoryRegistrations = new List<ServiceFactoryRegistration>
			{
				new()
				{
					ServiceInterfaceName = "IIndexParserService",
					ServiceRegistrations = new List<ServiceRegistration>
					{
						new()
						{
							ServiceName = "IndexParserService",
							ServiceId = "4"
						},
						new()
						{
							ServiceName = "IndexParserService",
							ServiceId = "1"
						}
					}
				}
			}
		};
		_fosDnaDocumentIndexService = new FosDnaDocumentIndexService(_mockFileOperationsApiService.Object, serviceFactoryConfiguration);
	}

	[Test]
	public async Task HandleIndexRequest_IngestorRequest_Null_IngestorResult_Failure()
	{
		IngestorRequest request = null;
		var result = await _fosDnaDocumentIndexService.HandleIndexRequest(request);
		Assert.IsTrue(result.FatalFailure);
		_mockFileOperationsApiService.Verify(x => x.GetFileContent(It.IsAny<string>()), Times.Never);
	}

	[Test]
	public async Task HandleIndexRequest_IngestorRequest_Success()
	{
		var request = new IngestorRequest
		{
			RootPath = "\\Test\\",
			IndexFileName = "Test.csv"
		};
		const string fileContent = "\"220299012291\",\"CURTIS M, MACIK\",\"03072022\",\"LN_NENT\",\"03f6bd41-7aae-4160-8a16-06583f75916c.pdf\"";
		_mockFileOperationsApiService.Setup(x => x.GetFileContent(It.IsAny<string>())).ReturnsAsync(fileContent);

		var result = await _fosDnaDocumentIndexService.HandleIndexRequest(request);
		Assert.IsFalse(result.FatalFailure);
		Assert.AreEqual(1, result.ProcessingRequests.Count);
		_mockFileOperationsApiService.Verify(x => x.GetFileContent(It.IsAny<string>()), Times.Once);

		var firstPayloadObject = result.ProcessingRequests.First().DocumentValuePayload;
		var fosDnaDocumentRecord = JsonSerializer.Deserialize<FosDnaDocument>(firstPayloadObject);
		Assert.NotNull(fosDnaDocumentRecord);
		Assert.AreEqual("220299012291", fosDnaDocumentRecord.AccountNumber);
		Assert.AreEqual("03f6bd41-7aae-4160-8a16-06583f75916c.pdf", fosDnaDocumentRecord.DocName);
		Assert.AreEqual("LN_NENT", fosDnaDocumentRecord.DocType);
		Assert.AreEqual("CURTIS M, MACIK", fosDnaDocumentRecord.EntityName);
		Assert.AreEqual("03072022", fosDnaDocumentRecord.CreationDate);
	}

	[Test]
	public async Task HandleIndexRequest_IngestorRequest_GetFileContent_ThrowsException_Failure()
	{
		var request = new IngestorRequest
		{
			RootPath = "\\Test\\",
			IndexFileName = "Test.csv"
		};
		_mockFileOperationsApiService.Setup(x => x.GetFileContent(It.IsAny<string>())).ThrowsAsync(new Exception("Error"));

		var result = await _fosDnaDocumentIndexService.HandleIndexRequest(request);
		Assert.IsTrue(result.FatalFailure);
		_mockFileOperationsApiService.Verify(x => x.GetFileContent(It.IsAny<string>()), Times.Once);
	}

	[Test]
	public void PrepareRunInfoAndProcessRequests_IngestorRunInfo_ProcessRequests_Created()
	{
		var request = new IngestorRequest
		{
			RootPath = "\\Test\\",
			IndexFileName = "Test.csv",
			IngestorType = IngestorTypes.FosTaxStatement,
		};

		var documentMetaData = new List<FosDnaDocument>
		{
			new()
			{
				AccountNumber = "1",
				DocType = "1099-INT",
				EntityName = "tester",
				DocName = "test.pdf",
				CreationDate = "01022003"
			}
		};
		var ingestorResult = new IngestorResult();

		var result = _fosDnaDocumentIndexService.PrepareRunInfoAndProcessRequests(request, documentMetaData, ingestorResult);
		Assert.IsFalse(result.FatalFailure);
		Assert.AreEqual(1, result.ProcessingRequests.Count);
		Assert.AreEqual("Test.csv", result.IngestorRunInfo.IndexFileName);
		Assert.AreEqual(IngestorTypes.FosTaxStatement, result.IngestorRunInfo.IngestorType);
		Assert.AreEqual("\\Test\\", result.IngestorRunInfo.IndexFilePath);
	}
}