using FluentAssertions;
using Moq;
using NUnit.Framework;
using Strata.Authorization;
using Strata.ContinuousImprovement.Biz.DbContexts;
using Strata.ContinuousImprovement.Biz.Filter;
using Strata.ContinuousImprovement.Biz.GeneralLedger.Details;
using Strata.ContinuousImprovement.Biz.GeneralLedger.Opportunities;
using Strata.ContinuousImprovement.Biz.GeneralLedger.Opportunities.Filters;
using Strata.ContinuousImprovement.Biz.Generics;
using Strata.ContinuousImprovement.Biz.Initiatives;
using Strata.ContinuousImprovement.Biz.Pagination;
using Strata.ContinuousImprovement.Biz.Test.Unit.Utilities;
using Strata.ContinuousImprovement.JazzEntityFrameworkStub;
using Strata.Hangfire.Jazz.Client;
using Strata.SqlTools.Configuration.Common.AsyncFactory;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;

namespace Strata.ContinuousImprovement.Biz.Test.Unit.GeneralLedger.Opportunities
{
    [TestFixture, Category("Unit")]
    public class GLOpportunityServiceTests
    {

        private Mock<IGLDetailService> _glOpportunityServiceMock;
        private Mock<IAsyncDbContextFactory<JazzDbContext>> _dbContextFactoryMock;
        private Mock<IJazzDbContext> _jazzDbContextMock;
        private Mock<IJazzHangfireServiceClient> _hangfireServiceMock;
        private Mock<IAuthorizationServiceClient> _authorizationServiceMock;
        private IUpdateFactOpportunitySavingsService _updateFactOpportunitySavingsService;
        private IInitiativeService _initiativeService;

        private static readonly ResourceFileExtractor _extractor = new ResourceFileExtractor(".Resource.");

        [SetUp]
        public void TestSetUp()
        {
            _glOpportunityServiceMock = new Mock<IGLDetailService>();
            _dbContextFactoryMock = new Mock<IAsyncDbContextFactory<JazzDbContext>>();
            _jazzDbContextMock = new Mock<IJazzDbContext>();
            _hangfireServiceMock = new Mock<IJazzHangfireServiceClient>();
            _updateFactOpportunitySavingsService = Mock.Of<IUpdateFactOpportunitySavingsService>();
            _initiativeService = Mock.Of<IInitiativeService>();
            Mock.Get(_updateFactOpportunitySavingsService)
                .Setup(s => s.UpdateFactOpportunitySavings(It.IsAny<CancellationToken>()));
            Mock.Get(_initiativeService)
                .Setup(s => s.DeleteAsync(It.IsAny<Guid>(), It.IsAny<CancellationToken>()))
                .Returns(Task.FromResult(true));
            _authorizationServiceMock = new Mock<IAuthorizationServiceClient>();
            _authorizationServiceMock
                .Setup(o => o.AddPermissionsFromDefaultsAsync(It.IsAny<Guid>(), It.IsAny<SecurableEntityType>(), It.IsAny<CancellationToken>()));
        }

        [Test, Ignore("new filtering broke these tests")]
        public async Task TestFirstPage_Sorted_Asc()
        {
            // arrange
            var framework = new JazzEntityFrameworkFactory();
            await framework.CreateDbContextAsync(CancellationToken.None);
            var glOpportunityService = new GLOpportunityService(framework, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);
            var filters = new GLFilters()
            {
                Types = new List<string>(),
                Levels = new List<string>(),
                IdentifiedSavings = 0,
                ViewVisible = true,
                ExcludeInitiatives = false,
                OpportunitySearch = "",
                Seasonality = SeasonalityType.WithAndWithout,

                ConfigurationGuid = JazzEntityFrameworkFactory.CurrentConfigurationGuid
            };

            var pagingOptions = new PagingOptions("IdentifiedSavings", SortOrder.Asc);

            // act
            var taskResult = await glOpportunityService
                .GetPagedAsync(pagingOptions, filters, CancellationToken.None);

            // assert
            taskResult.Data.Should().NotBeNullOrEmpty()
                .And.AllBeOfType<GLOpportunity>()
                .And.HaveCountGreaterThan(1);
            taskResult.Data.First().IdentifiedSavings
                .Should().BeLessThan(taskResult.Data.Last().IdentifiedSavings);
        }

        [Test, Ignore("new filtering broke these tests")]
        public async Task TestFirstPage_Sorted_Desc()
        {
            // arrange
            var framework = new JazzEntityFrameworkFactory();
            await framework.CreateDbContextAsync(CancellationToken.None);
            var glOpportunityService = new GLOpportunityService(framework, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);
            var filters = new GLFilters()
            {
                Types = new List<string>(),
                Levels = new List<string>(),
                IdentifiedSavings = 0,
                ViewVisible = true,
                ExcludeInitiatives = false,
                OpportunitySearch = "",

                ConfigurationGuid = JazzEntityFrameworkFactory.CurrentConfigurationGuid
            };

            var pagingOptions = new PagingOptions("IdentifiedSavings", SortOrder.Desc);

            // act
            var taskResult = await glOpportunityService
                .GetPagedAsync(pagingOptions, filters, CancellationToken.None);

            // assert
            taskResult.Data.Should().NotBeNullOrEmpty()
                .And.AllBeOfType<GLOpportunity>()
                .And.HaveCountGreaterThan(1);
            taskResult.Data.First().IdentifiedSavings
                .Should().BeGreaterThan(taskResult.Data.Last().IdentifiedSavings);
        }

        [TestCaseSource(nameof(GetFilterData))]
        public void TestValidateFilters(GLFilters filters)
        {
            if (filters == null) return;
            if (filters.Types.Any())
                filters.Types.Should()
                    .AllBeOfType<string>()
                    .And.NotBeNullOrEmpty();
            if (filters.Levels.Any())
                filters.Levels.Should()
                    .AllBeOfType<string>()
                    .And.NotBeNullOrEmpty();
        }

        [Test, Ignore("new filtering broke these tests")]
        public async Task TestGetExcelWorkbook()
        {
            // arrange
            var framework = new JazzEntityFrameworkFactory();
            await framework.CreateDbContextAsync(CancellationToken.None);
            var opp = framework.GLOpportunities.First();
            var filters = new GLFilters()
            {
                ConfigurationGuid = framework.Configurations.First().ConfigurationGuid,
                Types = new[] { opp.Type },
                Levels = new[] { opp.Level }
            };
            var service = new GLOpportunityService(framework, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);

            // act
            var wb = await service.ExportAsync(new SortOptions(), filters, CancellationToken.None);
#pragma warning disable S125 // Sections of code should not be commented out
            //wb.SaveAs(System.IO.Path.Combine(@"C:\git\continuousimprovement\tests\Strata.ContinuousImprovement.Biz.Test.Unit\Resource", "ExcelFilter.xlsx"));
#pragma warning restore S125 // Sections of code should not be commented out

            // assert
            wb.Worksheets.Should().HaveCount(1);
            var ws = wb.Worksheet(1);
            ws.Should().NotBeNull();

            var expected = @"Examples.GeneralLedgerOpportunity.ExcelFilter.xlsx";
            using (var expectedStream = _extractor.ReadFileFromResourceToStream(expected))
            using (var actualStream = new MemoryStream())
            {
                wb.SaveAs(actualStream);
                actualStream.Compare(expectedStream, out var message).Should().BeTrue(message);
            }
        }

        [Test]
        public async Task TestGetExcelWorkbookNullFilter()
        {
            // arrange
            var framework = new JazzEntityFrameworkFactory();
            await framework.CreateDbContextAsync(CancellationToken.None);
            var service = new GLOpportunityService(framework, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);

            // act
            var wb = await service.ExportAsync(null, null, CancellationToken.None);
#pragma warning disable S125 // Sections of code should not be commented out
            //wb.SaveAs(System.IO.Path.Combine(@"C:\git\continuousimprovement\tests\Strata.ContinuousImprovement.Biz.Test.Unit\Resource", "ExcelNullFilter.xlsx"));
#pragma warning restore S125 // Sections of code should not be commented out

            // assert
            wb.Worksheets.Should().HaveCount(1);
            var ws = wb.Worksheet(1);
            ws.Should().NotBeNull();

            var expected = @"Examples.GeneralLedgerOpportunity.ExcelNullFilter.xlsx";
            using (var expectedStream = _extractor.ReadFileFromResourceToStream(expected))
            using (var actualStream = new MemoryStream())
            {
                wb.SaveAs(actualStream);
                actualStream.Compare(expectedStream, out var message).Should().BeTrue(message);
            }
        }

        [Test]
        public async Task TestSetHidden()
        {
            // arrange
            var framework = new JazzEntityFrameworkFactory();
            await framework.CreateDbContextAsync(CancellationToken.None);
            var opportunities = framework.GLOpportunities;
            var opportunity = opportunities.First(vo => !vo.IsHidden);
            var isHidden = opportunity.IsHidden;
            var service = new GLOpportunityService(framework, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);

            // act
            await service.SetHiddenAsync(opportunity.OpportunityGuid, !isHidden, CancellationToken.None);

            // assert
            var result = await service.GetById(opportunity.OpportunityGuid, CancellationToken.None);
            result.IsHidden.Should().Be(!isHidden);
        }

        [TestCaseSource(typeof(JazzEntityFrameworkFactory), nameof(JazzEntityFrameworkFactory.GetFrameworksWithCancellation))]
        public async Task TestGetFilterOptionsAsync(JazzEntityFrameworkFactory jazzEntityFrameworkFactory, CancellationToken cancellationToken)
        {
            // arrange
            var opportunityService = new GLOpportunityService(jazzEntityFrameworkFactory, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);

            try
            {
                // act
                var taskResult = await opportunityService
                    .GetFilterOptionsAsync(new Guid("e96abe3e-1526-43ca-815e-ee30c5b34345"), cancellationToken);

                // assert
                if (string.IsNullOrEmpty(jazzEntityFrameworkFactory.TestName))
                {
                    taskResult.Should().BeNull();
                    return;
                }
                taskResult.Should()
                    .BeOfType<GLFilterOptions>()
                    .And.NotBeNull();
                taskResult.Types.Should().AllBeOfType<FilterMember>().And.NotBeNullOrEmpty()
                    .And.NotContain(t => string.IsNullOrEmpty(t.Id))
                    .And.NotContain(t => string.IsNullOrEmpty(t.Text));
                taskResult.Levels.Should().AllBeOfType<FilterMember>().And.NotBeNullOrEmpty()
                    .And.NotContain(l => string.IsNullOrEmpty(l.Id))
                    .And.NotContain(l => string.IsNullOrEmpty(l.Text));
            }
            catch (NotImplementedException nie)
            {
                nie.Should().BeOfType<NotImplementedException>();
            }
            catch (Exception e)
            {
                e.Should().BeOfType<OperationCanceledException>();
            }
        }

        [TestCaseSource(typeof(JazzEntityFrameworkFactory), nameof(JazzEntityFrameworkFactory.GetFrameworksWithCancellation))]
        public async Task TestSetHiddenAsync(JazzEntityFrameworkFactory jazzEntityFrameworkFactory, CancellationToken cancellationToken)
        {
            // arrange
            var glOpportunityService = new GLOpportunityService(jazzEntityFrameworkFactory, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);
            try
            {
                var opportunities = glOpportunityService.GetAllAsync(cancellationToken).Result;
                var opportunity = opportunities.FirstOrDefault(o => o.IsHidden);
                if (opportunity == null) return;
                var isHidden = opportunity.IsHidden;

                //act
                await glOpportunityService.SetHiddenAsync(opportunity.OpportunityGuid, !isHidden,

                    cancellationToken);

                if (string.IsNullOrEmpty(jazzEntityFrameworkFactory.TestName)) return;

                var result = glOpportunityService.GetById(opportunity.OpportunityGuid, cancellationToken).Result;

                result.IsHidden.Should().Be(!isHidden);
            }
            catch (Exception e)
            {
                switch (e.GetType().Name)
                {
                    case "AggregateException":
                    case "OperationCanceledException":
                        return;
                }
                e.Should().NotBeOfType<Exception>();
            }
        }

        [TestCaseSource(typeof(JazzEntityFrameworkFactory), nameof(JazzEntityFrameworkFactory.GetFrameworksWithCancellation))]
        public async Task TestSetHiddenAsync_NoOpportunity(JazzEntityFrameworkFactory jazzEntityFrameworkFactory, CancellationToken cancellationToken)
        {
            // arrange
            var opportunity = jazzEntityFrameworkFactory.GLOpportunities.FirstOrDefault(o => o.IsHidden);
            if (opportunity == null) return;
            var isHidden = opportunity.IsHidden;
            var glOpportunityService = new GLOpportunityService(jazzEntityFrameworkFactory, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);

            try
            {
                // act
                await glOpportunityService.SetHiddenAsync(Guid.Empty, !isHidden,
                    cancellationToken);
            }
            catch (Exception e)
            {
                e.Should().BeOfType<OperationCanceledException>();
            }
        }

        [TestCaseSource(typeof(JazzEntityFrameworkFactory), nameof(JazzEntityFrameworkFactory.GetFrameworksWithCancellation))]
        public async Task TestSetNoteAsync(JazzEntityFrameworkFactory jazzEntityFrameworkFactory, CancellationToken cancellationToken)
        {
            // arrange
            var glOpportunityService = new GLOpportunityService(jazzEntityFrameworkFactory, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);
            try
            {
                var opportunities = glOpportunityService.GetAllAsync(cancellationToken).Result;

                var opportunity = opportunities.FirstOrDefault(o => o.Note == string.Empty);

                if (opportunity == null) return;

                var note = "new test note";
                // act
                await glOpportunityService.SetNoteAsync(opportunity.OpportunityGuid, note,
                    CancellationToken.None);
                if (string.IsNullOrEmpty(jazzEntityFrameworkFactory.TestName)) return;
                var result = glOpportunityService.GetById(opportunity.OpportunityGuid, cancellationToken).Result;
                result.Note.Should().Be(note);

                // assert
            }
            catch (Exception e)
            {
                switch (e.GetType().Name)
                {
                    case "AggregateException":
                    case "OperationCanceledException":
                        return;
                }
                e.Should().NotBeOfType<Exception>();
            }
        }

        [Test]
        public async Task TestSetNote()
        {
            // arrange
            var framework = new JazzEntityFrameworkFactory();
            await framework.CreateDbContextAsync(CancellationToken.None);
            var opportunities = framework.GLOpportunities;
            var opportunity = opportunities.First(vo => string.IsNullOrEmpty(vo.Note));
            var note = opportunity.Note;
            var expected = "Now is the time for all good engineers to write great code!";
            var service = new GLOpportunityService(framework, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);

            // act
            await service.SetNoteAsync(opportunity.OpportunityGuid, expected, CancellationToken.None);

            // assert
            var result = await service.GetById(opportunity.OpportunityGuid, CancellationToken.None);
            result.Note.Should().NotBeNullOrEmpty()
                .And.NotBe(note)
                .And.Be(expected);
        }

        [TestCaseSource(typeof(JazzEntityFrameworkFactory), nameof(JazzEntityFrameworkFactory.GetFrameworksWithCancellation))]
        public async Task TestSetNoteAsync_NoOpportunity(JazzEntityFrameworkFactory jazzEntityFrameworkFactory, CancellationToken cancellationToken)
        {
            // arrange
            var opportunity = jazzEntityFrameworkFactory.GLOpportunities.FirstOrDefault(o => o.Note == string.Empty);
            if (opportunity == null) return;
            var note = "new test note";
            var glOpportunityService = new GLOpportunityService(jazzEntityFrameworkFactory, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);

            try
            {
                // act
                await glOpportunityService.SetNoteAsync(Guid.Empty, note, cancellationToken);

                // assert
            }
            catch (Exception e)
            {
                e.Should().BeOfType<OperationCanceledException>();
            }
        }

        [TestCaseSource(typeof(JazzEntityFrameworkFactory), nameof(JazzEntityFrameworkFactory.GetFrameworks))]
        public async Task TestGetAllAsync(JazzEntityFrameworkFactory jazzEntityFrameworkFactory)
        {
            // arrange
            var glOpportunityService = new GLOpportunityService(jazzEntityFrameworkFactory, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);

            // act
            var taskResult = await glOpportunityService.GetAllAsync(CancellationToken.None);

            // assert
            if (string.IsNullOrEmpty(jazzEntityFrameworkFactory.TestName))
            {
                taskResult.Should().BeNullOrEmpty();
            }
            else
            {
                taskResult.Should().NotBeNullOrEmpty();
            }
        }

        [TestCaseSource(typeof(JazzEntityFrameworkFactory), nameof(JazzEntityFrameworkFactory.GetFrameworks))]
        public async Task TestGetById(JazzEntityFrameworkFactory jazzEntityFrameworkFactory)
        {
            // arrange
            var glOpportunityService = new GLOpportunityService(jazzEntityFrameworkFactory, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);

            // act
            var tempResult = await glOpportunityService.GetAllAsync(CancellationToken.None);
            var taskResult =
                await glOpportunityService.GetById(tempResult.FirstOrDefault()?.OpportunityGuid ?? Guid.Empty, CancellationToken.None);

            // assert
            if (string.IsNullOrEmpty(jazzEntityFrameworkFactory.TestName))
            {
                taskResult.Should().BeNull();
            }
            else
            {
                taskResult.Should().NotBeNull()
                    .And.BeOfType<GLOpportunity>();
            }
        }

        [TestCaseSource(typeof(JazzEntityFrameworkFactory), nameof(JazzEntityFrameworkFactory.GetFrameworks))]
        public async Task TestGetByIds(JazzEntityFrameworkFactory jazzEntityFrameworkFactory)
        {
            // arrange
            var glOpportunityService = new GLOpportunityService(jazzEntityFrameworkFactory, null, null, _hangfireServiceMock.Object, _authorizationServiceMock.Object,
                _initiativeService, _updateFactOpportunitySavingsService);

            // act
            var tempResult = await glOpportunityService.GetAllAsync(CancellationToken.None);
            var ids = tempResult.Select(o => o.OpportunityGuid);
            var taskResult = await glOpportunityService.GetByIds(ids, CancellationToken.None);

            // assert
            if (string.IsNullOrEmpty(jazzEntityFrameworkFactory.TestName))
            {
                taskResult.Should().BeNullOrEmpty();
            }
            else
            {
                taskResult.Should().NotBeNullOrEmpty()
                    .And.AllBeOfType<GLOpportunity>();
            }
        }

        [TearDown]
        public void TestTearDown()
        {
            // Method intentionally left empty.
        }

        #region TestCaseData

        public static IEnumerable<TestCaseData> GetFilterData()
        {
            yield return new TestCaseData(new GLFilters { ConfigurationGuid = new Guid("e96abe3e-1526-43ca-815e-ee30c5b34345") }).SetName("No Filters");
            yield return new TestCaseData(new GLFilters { ViewVisible = true, ConfigurationGuid = new Guid("e96abe3e-1526-43ca-815e-ee30c5b34345") }).SetName("View Visible");
            yield return new TestCaseData(new GLFilters { ViewVisible = false, ConfigurationGuid = new Guid("e96abe3e-1526-43ca-815e-ee30c5b34345") }).SetName("Not View Visible");
            yield return new TestCaseData(new GLFilters { IdentifiedSavings = 1999, ViewVisible = true, ConfigurationGuid = new Guid("e96abe3e-1526-43ca-815e-ee30c5b34345") }).SetName(
                "By Identified Savings");
            yield return new TestCaseData(new GLFilters { IdentifiedSavings = 999, ViewVisible = false, ConfigurationGuid = new Guid("e96abe3e-1526-43ca-815e-ee30c5b34345") }).SetName(
                "By Identified Savings Not ViewVisible");
            yield return new TestCaseData(new GLFilters { Levels = new[] { "Overall" }, ViewVisible = true, ConfigurationGuid = new Guid("e96abe3e-1526-43ca-815e-ee30c5b34345") })
                .SetName("By Level");
            yield return new TestCaseData(new GLFilters { Levels = new[] { "Department" }, ConfigurationGuid = new Guid("e96abe3e-1526-43ca-815e-ee30c5b34345"), ViewVisible = false })
                .SetName("By Level Not ViewVisible");
            yield return new TestCaseData(new GLFilters { Types = new[] { "Revenue" }, ViewVisible = true, ConfigurationGuid = new Guid("e96abe3e-1526-43ca-815e-ee30c5b34345") })
                .SetName("By Type");
            yield return new TestCaseData(new GLFilters { Types = new[] { "Expense" }, ConfigurationGuid = new Guid("e96abe3e-1526-43ca-815e-ee30c5b34345"), ViewVisible = false })
                .SetName("By Type Not ViewVisible");
            yield return new TestCaseData(new GLFilters { OpportunitySearch = "GL - 101", ConfigurationGuid = new Guid("e96abe3e-1526-43ca-815e-ee30c5b34345") }).SetName("Search By Id");
            yield return new TestCaseData(new GLFilters { ExcludeInitiatives = true, ConfigurationGuid = new Guid("e96abe3e-1526-43ca-815e-ee30c5b34345") }).SetName("Exclude Opportunities with Initiatives");
        }
        #endregion
    }
}