using QuestPDF.Fluent;
using QuestPDF.Helpers;
using QuestPDF.Infrastructure;
using Indotalent.Features.Payroll.PayrollDetails.Cqrs;

namespace Indotalent.Features.Payroll.Payrolls;

public class PayrollSlipPdfGenerator
{

    public static byte[] Generate(GetPayrollSlipByIdResponse data, string periodName)
    {
        QuestPDF.Settings.License = LicenseType.Community;

        var primaryBlue = "#0D47A1";
        var lightGreyBg = "#F8FAFC";
        var borderColor = "#E2E8F0";
        var textSlate = "#64748b";

        return Document.Create(container =>
        {
            container.Page(page =>
            {
                page.Size(PageSizes.A5.Landscape());
                page.Margin(1, Unit.Centimetre);
                page.PageColor(Colors.White);
                page.DefaultTextStyle(x => x.FontSize(9).FontFamily(Fonts.Verdana));

                page.Header().PaddingBottom(10).Row(row =>
                {
                    row.RelativeItem().Text("PAYROLL SLIP DETAILS")
                        .FontSize(14)
                        .ExtraBold()
                        .FontColor(Colors.Black);
                });

                page.Content().Column(col =>
                {
                    col.Item().Border(1).BorderColor(borderColor).Background(lightGreyBg).Padding(10).Row(row =>
                    {
                        row.RelativeItem().Column(c =>
                        {
                            c.Item().Text("Employee Name").FontSize(8).SemiBold().FontColor(textSlate);
                            c.Item().Text(data.EmployeeName).FontSize(11).ExtraBold().FontColor(primaryBlue);
                            c.Item().PaddingTop(5).Text("Code").FontSize(8).SemiBold().FontColor(textSlate);
                            c.Item().Text(data.EmployeeCode).FontSize(10).Bold();
                        });

                        row.RelativeItem().AlignRight().Column(c =>
                        {
                            c.Item().Text("Payroll Period").FontSize(8).SemiBold().FontColor(textSlate);
                            c.Item().Text(periodName).FontSize(11).Bold();
                            c.Item().PaddingTop(5).Text("Basic Salary").FontSize(8).SemiBold().FontColor(textSlate);
                            c.Item().Text(data.BasicSalary.ToString("N0")).FontSize(11).ExtraBold().FontColor(primaryBlue);
                        });
                    });

                    col.Item().PaddingTop(15).Row(row =>
                    {
                        row.RelativeItem().Column(c =>
                        {
                            c.Item().Text("Incomes (+)").FontSize(10).ExtraBold().FontColor(Colors.Green.Medium);
                            c.Item().PaddingVertical(5).LineHorizontal(1).LineColor(borderColor);

                            foreach (var inc in data.Incomes)
                            {
                                c.Item().PaddingBottom(2).Row(r =>
                                {
                                    r.RelativeItem().Text(inc.ComponentName);
                                    r.RelativeItem().AlignRight().Text(inc.Amount.ToString("N0")).Bold();
                                });
                            }
                        });

                        row.ConstantItem(20); 

                        row.RelativeItem().BorderLeft(1).BorderColor(borderColor).PaddingLeft(10).Column(c =>
                        {
                            c.Item().Text("Deductions (-)").FontSize(10).ExtraBold().FontColor(Colors.Red.Medium);
                            c.Item().PaddingVertical(5).LineHorizontal(1).LineColor(borderColor);

                            foreach (var ded in data.Deductions)
                            {
                                c.Item().PaddingBottom(2).Row(r =>
                                {
                                    r.RelativeItem().Text(ded.ComponentName);
                                    r.RelativeItem().AlignRight().Text($"({ded.Amount.ToString("N0")})").Bold().FontColor(Colors.Red.Medium);
                                });
                            }
                        });
                    });

                    col.Item().PaddingTop(20).Background(primaryBlue).Padding(10).Row(row =>
                    {
                        row.RelativeItem().AlignLeft().AlignMiddle().Text("TAKE HOME PAY")
                            .FontSize(12)
                            .ExtraBold()
                            .FontColor(Colors.White);

                        row.RelativeItem().AlignRight().AlignMiddle().Text(data.TakeHomePay.ToString("N0"))
                            .FontSize(14)
                            .ExtraBold()
                            .FontColor(Colors.White);
                    });
                });

                page.Footer().PaddingTop(10).Row(row =>
                {
                    row.RelativeItem().Text(x =>
                    {
                        x.Span("Generated on: ").FontSize(8).FontColor(textSlate);
                        x.Span(DateTime.Now.ToString("dd MMM yyyy HH:mm")).FontSize(8).FontColor(textSlate);
                    });

                    row.RelativeItem().AlignRight().Text(x =>
                    {
                        x.Span("Page ").FontSize(8);
                        x.CurrentPageNumber().FontSize(8);
                    });
                });
            });
        }).GeneratePdf();
    }

}