using ClosedXML.Excel;
using JdeScoping.ExcelIO.Options;
using JdeScoping.ExcelIO.Generators;
using JdeScoping.ExcelIO.Helpers;
using JdeScoping.ExcelIO.Models.Reporting;
using Microsoft.Extensions.Options;
using Shouldly;
using Xunit;

namespace JdeScoping.ExcelIO.Tests;

public class CriteriaSheetGeneratorTests
{
    private readonly CriteriaSheetGenerator _generator;
    private readonly IOptions<ExcelExportOptions> _options;

    public CriteriaSheetGeneratorTests()
    {
        _options = Microsoft.Extensions.Options.Options.Create(new ExcelExportOptions
        {
            CriteriaSheetPassword = "TestPassword"
        });

        var cache = new OutputColumnCache();
        var tableWriter = new AttributeTableWriter(cache);
        _generator = new CriteriaSheetGenerator(_options, tableWriter);
    }

    [Fact]
    public void Generate_CreatesSearchCriteriaSheet()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();

        _generator.Generate(workbook, search);

        workbook.Worksheets.TryGetWorksheet("Search Criteria", out var worksheet).ShouldBeTrue();
        worksheet.ShouldNotBeNull();
    }

    [Fact]
    public void Generate_ContainsSearchName()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.Name = "Test Search Name";

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        worksheet.Cell(1, 1).Value.GetText().ShouldBe("Search Name");
        worksheet.Cell(1, 2).Value.GetText().ShouldBe("Test Search Name");
    }

    [Fact]
    public void Generate_ContainsUserName()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.UserName = "testuser";

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        worksheet.Cell(2, 1).Value.GetText().ShouldBe("User Name");
        worksheet.Cell(2, 2).Value.GetText().ShouldBe("testuser");
    }

    [Fact]
    public void Generate_ContainsTimestamps()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        var submitDt = new DateTime(2024, 1, 15, 10, 30, 0);
        var startDt = new DateTime(2024, 1, 15, 10, 31, 0);
        var endDt = new DateTime(2024, 1, 15, 10, 35, 0);
        search.SubmitDt = submitDt;
        search.StartDt = startDt;
        search.EndDt = endDt;

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        worksheet.Cell(4, 1).Value.GetText().ShouldBe("Submit timestamp");
        worksheet.Cell(4, 2).Value.GetText().ShouldContain("Jan 15, 2024");

        worksheet.Cell(5, 1).Value.GetText().ShouldBe("Start timestamp");
        worksheet.Cell(5, 2).Value.GetText().ShouldContain("Jan 15, 2024");

        worksheet.Cell(6, 1).Value.GetText().ShouldBe("Completed timestamp");
        worksheet.Cell(6, 2).Value.GetText().ShouldContain("Jan 15, 2024");
    }

    [Fact]
    public void Generate_ContainsTimespanFilterTable()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.MinimumDt = new DateTime(2024, 1, 1);
        search.MaximumDt = new DateTime(2024, 12, 31);

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        var tables = worksheet.Tables;
        tables.Any(t => t.Name == "Timespan_Filter").ShouldBeTrue();
    }

    [Fact]
    public void Generate_ContainsWorkOrderFilterTable()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.WorkOrderFilter.Add(new WorkOrderFilterEntry { WorkOrderNumber = 12345, ItemNumber = "ITEM-001" });

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        var tables = worksheet.Tables;
        tables.Any(t => t.Name == "Work_Order_Filter").ShouldBeTrue();
    }

    [Fact]
    public void Generate_ContainsItemNumberFilterTable()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.ItemNumberFilter.Add(new ItemNumberFilterEntry { ItemNumber = "ITEM-001" });

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        var tables = worksheet.Tables;
        tables.Any(t => t.Name == "Item_Number_Filter").ShouldBeTrue();
    }

    [Fact]
    public void Generate_ContainsProfitCenterFilterTable()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.ProfitCenterFilter.Add(new ProfitCenterFilterEntry { Code = "PC01", Description = "Profit Center 1" });

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        var tables = worksheet.Tables;
        tables.Any(t => t.Name == "Profit_Center_Filter").ShouldBeTrue();
    }

    [Fact]
    public void Generate_ContainsWorkCenterFilterTable()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.WorkCenterFilter.Add(new WorkCenterFilterEntry { Code = "WC01", Description = "Work Center 1" });

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        var tables = worksheet.Tables;
        tables.Any(t => t.Name == "Work_Center_Filter").ShouldBeTrue();
    }

    [Fact]
    public void Generate_ContainsOperatorFilterTable()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.OperatorFilter.Add(new OperatorFilterEntry { UserId = "OP01", FullName = "Operator 1" });

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        var tables = worksheet.Tables;
        tables.Any(t => t.Name == "Operator_Filter").ShouldBeTrue();
    }

    [Fact]
    public void Generate_ContainsComponentLotFilterTable()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.ComponentLotFilter.Add(new ComponentLotFilterEntry { LotNumber = "LOT001" });

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        var tables = worksheet.Tables;
        tables.Any(t => t.Name == "Component_Lot_Filter").ShouldBeTrue();
    }

    [Fact]
    public void Generate_ContainsItemOperationMisFilterTable()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.ItemOperationMisFilter.Add(new ItemOperationMisFilterEntry
        {
            ItemNumber = "ITEM-001",
            OperationNumber = "10",
            MisNumber = "MIS-001"
        });

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        var tables = worksheet.Tables;
        tables.Any(t => t.Name == "Item_Operation_MIS_Filter").ShouldBeTrue();
    }

    [Fact]
    public void Generate_ContainsExtractMisDataIndicator_WhenTrue()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.ExtractMisData = true;

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        // Find the "Extract MIS data?" header and check for YES
        var cells = worksheet.CellsUsed();
        var extractMisCell = cells.FirstOrDefault(c => c.Value.ToString() == "YES" || c.Value.ToString() == "NO");
        extractMisCell.ShouldNotBeNull();
        extractMisCell.Value.GetText().ShouldBe("YES");
    }

    [Fact]
    public void Generate_ContainsExtractMisDataIndicator_WhenFalse()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.ExtractMisData = false;

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        // Find the "Extract MIS data?" header and check for NO
        var cells = worksheet.CellsUsed();
        var extractMisCell = cells.FirstOrDefault(c => c.Value.ToString() == "YES" || c.Value.ToString() == "NO");
        extractMisCell.ShouldNotBeNull();
        extractMisCell.Value.GetText().ShouldBe("NO");
    }

    [Fact]
    public void Generate_AppliesHeaderFormatting()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        // Search Name header should be bold with Gainsboro background
        var headerCell = worksheet.Cell(1, 1);
        headerCell.Style.Font.Bold.ShouldBeTrue();
        headerCell.Style.Fill.BackgroundColor.ShouldBe(XLColor.Gainsboro);
    }

    [Fact]
    public void Generate_AppliesProtection()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        worksheet.Protection.IsProtected.ShouldBeTrue();
    }

    [Fact]
    public void Generate_TablesHaveLight18Style()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.WorkOrderFilter.Add(new WorkOrderFilterEntry { WorkOrderNumber = 12345, ItemNumber = "ITEM-001" });

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        var table = worksheet.Tables.First(t => t.Name == "Work_Order_Filter");
        table.Theme.ShouldBe(XLTableTheme.TableStyleLight18);
    }

    [Fact]
    public void Generate_FilterTables_Have2BlankRowSpacing()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.WorkOrderFilter.Add(new WorkOrderFilterEntry { WorkOrderNumber = 12345, ItemNumber = "ITEM-001" });
        search.ItemNumberFilter.Add(new ItemNumberFilterEntry { ItemNumber = "ITEM-001" });

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        var woTable = worksheet.Tables.First(t => t.Name == "Work_Order_Filter");
        var itemTable = worksheet.Tables.First(t => t.Name == "Item_Number_Filter");

        // There should be 2 blank rows between tables. With the header row of the next table, that's a gap of 3
        // Looking at CriteriaSheetGenerator: row = table.RangeAddress.LastAddress.RowNumber + 3
        // This means the next table starts 3 rows after the last row, leaving 2 blank rows in between
        var gap = itemTable.RangeAddress.FirstAddress.RowNumber - woTable.RangeAddress.LastAddress.RowNumber;
        // Gap includes header row of next table, so: 2 blank rows + 1 header = gap of 3
        // But with table header (Timespan_Filter has ShowHeader=true), add 1 more
        gap.ShouldBeGreaterThanOrEqualTo(3);
    }

    [Fact]
    public void Generate_NullTimestamps_ShowEmptyValue()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.SubmitDt = null;
        search.StartDt = null;
        search.EndDt = null;

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        worksheet.Cell(4, 2).Value.ToString().ShouldBe(string.Empty);
        worksheet.Cell(5, 2).Value.ToString().ShouldBe(string.Empty);
        worksheet.Cell(6, 2).Value.ToString().ShouldBe(string.Empty);
    }

    [Fact]
    public void Generate_ColumnsAreAutoFitWithPadding()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.Name = "A Very Long Search Name That Needs Extra Width";

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        // Columns should have been adjusted - verify they have non-default width
        worksheet.Column(1).Width.ShouldBeGreaterThan(0);
        worksheet.Column(2).Width.ShouldBeGreaterThan(0);
    }

    [Fact]
    public void Generate_MultipleFiltersWithData_CreatesAllTables()
    {
        using var workbook = new XLWorkbook();
        var search = CreateFullSearchModel();

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        var tables = worksheet.Tables;

        // Should have 8 filter tables
        tables.Count().ShouldBe(8);
        tables.Any(t => t.Name == "Timespan_Filter").ShouldBeTrue();
        tables.Any(t => t.Name == "Work_Order_Filter").ShouldBeTrue();
        tables.Any(t => t.Name == "Item_Number_Filter").ShouldBeTrue();
        tables.Any(t => t.Name == "Profit_Center_Filter").ShouldBeTrue();
        tables.Any(t => t.Name == "Work_Center_Filter").ShouldBeTrue();
        tables.Any(t => t.Name == "Component_Lot_Filter").ShouldBeTrue();
        tables.Any(t => t.Name == "Operator_Filter").ShouldBeTrue();
        tables.Any(t => t.Name == "Item_Operation_MIS_Filter").ShouldBeTrue();
    }

    [Fact]
    public void Generate_TimestampFormat_IncludesESTSuffix()
    {
        using var workbook = new XLWorkbook();
        var search = CreateMinimalSearchModel();
        search.SubmitDt = new DateTime(2024, 1, 15, 10, 30, 45);

        _generator.Generate(workbook, search);

        var worksheet = workbook.Worksheet("Search Criteria");
        var timestampValue = worksheet.Cell(4, 2).Value.GetText();
        timestampValue.ShouldContain("EST");
        timestampValue.ShouldContain("10:30:45");
    }

    private static SearchModel CreateMinimalSearchModel()
    {
        return new SearchModel
        {
            Id = 1,
            Name = "Test Search",
            UserName = "testuser",
            SubmitDt = DateTime.Now.AddHours(-1),
            StartDt = DateTime.Now.AddMinutes(-30),
            EndDt = DateTime.Now,
            ExtractMisData = false
        };
    }

    private static SearchModel CreateFullSearchModel()
    {
        return new SearchModel
        {
            Id = 1,
            Name = "Full Search",
            UserName = "testuser",
            SubmitDt = DateTime.Now.AddHours(-1),
            StartDt = DateTime.Now.AddMinutes(-30),
            EndDt = DateTime.Now,
            MinimumDt = new DateTime(2024, 1, 1),
            MaximumDt = new DateTime(2024, 12, 31),
            ExtractMisData = true,
            WorkOrderFilter = [new WorkOrderFilterEntry { WorkOrderNumber = 12345, ItemNumber = "ITEM-001" }],
            ItemNumberFilter = [new ItemNumberFilterEntry { ItemNumber = "ITEM-001" }],
            ProfitCenterFilter = [new ProfitCenterFilterEntry { Code = "PC01", Description = "Profit Center 1" }],
            WorkCenterFilter = [new WorkCenterFilterEntry { Code = "WC01", Description = "Work Center 1" }],
            OperatorFilter = [new OperatorFilterEntry { UserId = "OP01", FullName = "Operator 1" }],
            ComponentLotFilter = [new ComponentLotFilterEntry { LotNumber = "LOT001" }],
            ItemOperationMisFilter = [new ItemOperationMisFilterEntry { ItemNumber = "ITEM-001", OperationNumber = "10", MisNumber = "MIS-001" }]
        };
    }
}