using QuestPDF.Fluent;
using QuestPDF.Infrastructure;
using QuestPDF.Helpers;
using Google.Protobuf.WellKnownTypes;
using PSTW_CentralSystem.Models;

namespace PSTW_CentralSystem.Areas.MMS.Models.PDFGenerator
{
    public class TarBallPDF(string stationID, string stateName, string locationName, 
        string longitude, string latitude, DateTime dateSample, TimeSpan timeSample, 
        string classifyID, bool tarBallYes, bool tarBallNo, bool isSand, bool isNonSandy, 
        bool isCoquina, string photoPath1, string photoPath2, string photoPath3, string photoPath4) 
        : IDocument
    {
        private readonly string _stationId = stationID;
        private readonly string _stateName = stateName;
        private readonly string _locationName = locationName;
        private readonly string _longitude = longitude;
        private readonly string _latitude = latitude;
        private readonly DateTime _dateSample = dateSample;
        private readonly TimeSpan _timeSample = timeSample;
        private readonly string _classifyID = classifyID;
        private readonly bool _tarBallYes = tarBallYes;
        private readonly bool _tarBallNo = tarBallNo;
        private readonly bool _isSand = isSand;
        private readonly bool _isNonSandy = isNonSandy;
        private readonly bool _isCoquina = isCoquina;
        private readonly string? _photoPath1 = photoPath1;
        private readonly string? _photoPath2 = photoPath2;
        private readonly string? _photoPath3 = photoPath3;
        private readonly string? _photoPath4 = photoPath4;

        //INSERT LOADIMAGE() HERE
        private Image? LoadImage(string? imagePath)
        {
            if (string.IsNullOrEmpty(imagePath))  // Fixed: Added closing )
            {
                return null;
            }

            try
            {
                return Image.FromFile(imagePath);
            }
            catch
            {
                return null;
            }
        }

        // Metadata for the PDF document
        public DocumentMetadata GetMetadata() => new()
        {
            Title = "TARBALL SAMPLING FORM",
            Author = "PAKAR SCIENO TW Integrated Environmental Solutions",
            Subject = "Environmental Survey and Observations"
        };

        // Compose the PDF content
        public void Compose(IDocumentContainer container)
        {
            container.Page(page =>
            {
                // Page Setup
                page.Size(PageSizes.A4);
                page.Margin(1.1f, Unit.Centimetre);
                page.DefaultTextStyle(x => x.FontFamily("Arial").FontSize(10));

                // Header Section
                page.Header().Row(row =>
                {
                    row.RelativeItem(1).Element(CellStyle).Column(column =>
                    {
                        column.Item()
                            .AlignMiddle()
                            .AlignCenter()
                            .Text("Logo Placeholder");
                    });

                    row.RelativeItem(1).Element(CellStyle)
                        .AlignMiddle()
                        .AlignCenter()
                        .Text("TARBALL SAMPLING FORM")
                        .FontSize(16)
                        .FontColor("#4B0082");

                    row.RelativeItem(1).Column(column =>
                    {
                        column.Spacing(0);

                        column.Item().Row(innerRow =>
                        {
                            innerRow.RelativeItem(1).Element(CellStyle).Text("Document:")
                                .AlignLeft();
                            innerRow.RelativeItem(1).Element(CellStyle).Text("F-MM06")
                                .AlignLeft().Bold();
                        });
                        column.Item().Row(innerRow =>
                        {
                            innerRow.RelativeItem(1).Element(CellStyle).Text("Effective Date:")
                                .AlignLeft();
                            innerRow.RelativeItem(1).Element(CellStyle).Text("1 April 2025")
                                .AlignLeft();
                        });
                        column.Item().Row(innerRow =>
                        {
                            innerRow.RelativeItem(1).Element(CellStyle).Text("Revision No.")
                                .AlignLeft();
                            innerRow.RelativeItem(1).Element(CellStyle).Text("02")
                                .AlignLeft();
                        });

                    });

                    static IContainer CellStyle(IContainer container)
                        => container.Border(0.5f).Padding(5);

                });

                // Content Section
                page.Content().Column(column =>
                {
                    // Observations Table
                    column.Item().Element(container =>
                    {
                        container
                            .PaddingTop(20)
                            .PaddingBottom(10)
                            .Text("Please be informed that we have observed the following conditions:");
                    });
                    column.Item().Table(table =>
                    {
                        column.Spacing(0);

                        table.ColumnsDefinition(columns =>
                        {
                            columns.RelativeColumn(3);
                            columns.RelativeColumn(3);
                        });

                        table.Cell()
                            .Background(Colors.Grey.Lighten2).Element(CellStyle).Text("STATE")
                            .Bold();
                        table.Cell().Element(CellStyle).Text(_stateName);

                        table.Cell()
                            .Background(Colors.Grey.Lighten2).Element(CellStyle).Text("STATION ID")
                            .Bold();
                        table.Cell().Element(CellStyle).Text(_stationId);

                        table.Cell()
                            .Background(Colors.Grey.Lighten2).Element(CellStyle).Text("LOCATION")
                            .Bold();
                        table.Cell().Element(CellStyle).Text(_locationName);

                        table.Cell()
                            .Background(Colors.Grey.Lighten2).Element(CellStyle).Text("TARBALL SURVEY LOCATION LONGITUDE & LATITUDE")
                            .Bold();
                        table.Cell().Element(CellStyle).Text($"{_longitude}, {_latitude}");

                        // Display DateSample and TimeSample together in the table
                        table.Cell()
                            .Background(Colors.Grey.Lighten2).Element(CellStyle).Text("DATE / TIME")
                            .Bold();
                        table.Cell().Element(CellStyle).Text($"{_dateSample:yyyy-MM-dd} {_timeSample:hh\\:mm\\:ss}");
                    });

                    column.Spacing(3);

                    // Survey Findings - ALWAYS shows all options
                    column.Item()
                        .PaddingTop(10)
                        .PaddingBottom(10)
                        .Text("SURVEY FINDING:")
                        .Bold().FontSize(12);

                    // 1. Tar Ball YES/NO (always shown)
                    column.Item()
                        .PaddingBottom(10)
                        .Text(text =>
                        {
                            text.Span("Tar Ball: ").Style(TextStyle.Default.FontSize(10));
                            text.Span(_classifyID == "NO" ? "☐ YES   ☑ NO" : "☑ YES   ☐ NO").Style(TextStyle.Default.FontSize(10));
                        });

                    // 2. Classification (always shown)
                    column.Item()
                        .PaddingBottom(10)
                        .Text("If YES, Tar Ball falls under the Classification of:")
                        .FontSize(10);

                    column.Item()
                        .PaddingBottom(10)
                        .Text(text =>
                        {
                            text.Span(_classifyID == "SD" ? "☑ Sand   " : "☐ Sand   ").Style(TextStyle.Default.FontSize(10));
                            text.Span(_classifyID == "NS" ? "☑ Non-sandy   " : "☐ Non-sandy   ").Style(TextStyle.Default.FontSize(10));
                            text.Span(_classifyID == "CO" ? "☑ Coquina" : "☐ Coquina").Style(TextStyle.Default.FontSize(10));
                        });

                    column.Item()
                        .PaddingBottom(10)
                        .Text("*tick wherever applicable")
                        .Italic();

                    // Photos Section Title
                    column.Item()
                        .PaddingBottom(5)
                        .Text("PHOTOGRAPHS OF SAMPLING")
                        .AlignCenter()
                        .Bold()
                        .FontSize(14);

                    // Photos Section
                    column.Item().Table(table =>
                    {
                        column.Spacing(0);

                        table.ColumnsDefinition(columns =>
                        {
                            columns.RelativeColumn(1);
                            columns.RelativeColumn(1);
                        });

                        // Row 1: Photos
                        table.Cell().Element(CellStyle).Height(150)
                            .Image(LoadImage(_photoPath1) ?? null)  // Just pass null if no image
                            .FitArea();

                        table.Cell().Element(CellStyle).Height(150)
                            .Image(LoadImage(_photoPath2) ?? null)  // Just pass null if no image
                            .FitArea();

                        // Row 1: Captions
                        table.Cell().Element(CellStyle)
                            .Text("Figure 1: Left Side Coastal View")
                            .FontSize(12).AlignLeft();

                        table.Cell().Element(CellStyle)
                            .Text("Figure 2: Right Side Coastal View")
                            .FontSize(12).AlignLeft();

                        // Row 2: Photos
                        table.Cell().Element(CellStyle).Height(150)
                            .Image(LoadImage(_photoPath3) ?? null)  // Just pass null if no image
                            .FitArea();

                        table.Cell().Element(CellStyle).Height(150)
                            .Image(LoadImage(_photoPath4) ?? null)  // Just pass null if no image
                            .FitArea();

                        // Row 2: Captions
                        table.Cell().Element(CellStyle)
                            .Text("Figure 3: Drawing Vertical Lines")
                            .FontSize(12).AlignLeft();

                        table.Cell().Element(CellStyle)
                            .Text("Figure 4: Drawing Horizontal Lines (Racking)")
                            .FontSize(12).AlignLeft();
                    });

                    // Page Break
                    column.Item().PageBreak();

                    column.Spacing(3);

                    // Additional Photos Section
                    column.Item().Table(table =>
                    {
                        column.Spacing(0);

                        table.ColumnsDefinition(columns =>
                        {
                            columns.RelativeColumn(1);
                            columns.RelativeColumn(1);
                        });

                        table.Cell().Element(CellStyle).Height(150);
                        table.Cell().Element(CellStyle).Height(150);

                        table.Cell().Element(CellStyle).Text("Figure 5:").FontSize(12).AlignLeft();
                        table.Cell().Element(CellStyle).Text("Figure 6:").FontSize(12).AlignLeft();

                        table.Cell().Element(CellStyle).Height(150);
                        table.Cell().Element(CellStyle).Height(150);

                        table.Cell().Element(CellStyle).Text("Figure 7:").FontSize(12).AlignLeft();
                        table.Cell().Element(CellStyle).Text("Figure 8:").FontSize(12).AlignLeft();
                    });

                    // Note Section
                    column.Item()
                        .PaddingTop(10)
                        .PaddingBottom(20)
                        .Text("* If there are any event observe at the current station it is compulsory to add optional photo with description (figure 5 to figure 8)")
                        .Bold()
                        .FontSize(10)
                        .AlignLeft();

                    // Signature Section
                    column.Item().Table(table =>
                    {
                        table.ColumnsDefinition(columns =>
                        {
                            columns.RelativeColumn(2);
                            columns.RelativeColumn(1);
                            columns.RelativeColumn(2);
                            columns.RelativeColumn(1);
                            columns.RelativeColumn(1);
                        });

                        table.Cell().RowSpan(2).Element(CellStyle).Text("REPORTED BY :").Bold().FontSize(12);
                        table.Cell().Element(CellStyle).Text("Signature").FontSize(12);
                        table.Cell().Element(CellStyle).Text("");
                        table.Cell().Element(CellStyle).Text("Date").FontSize(12);
                        table.Cell().Element(CellStyle).Text("");

                        table.Cell().Element(CellStyle).Text("Designation").FontSize(12);
                        table.Cell().ColumnSpan(3).Element(CellStyle).Text("");

                        table.Cell().RowSpan(2).Element(CellStyle).Text("CHECKED BY :").Bold().FontSize(12);
                        table.Cell().Element(CellStyle).Text("Signature").FontSize(12);
                        table.Cell().Element(CellStyle).Text("");
                        table.Cell().Element(CellStyle).Text("Date").FontSize(12);
                        table.Cell().Element(CellStyle).Text("");

                        table.Cell().Element(CellStyle).Text("Designation").FontSize(12);
                        table.Cell().ColumnSpan(3).Element(CellStyle).Text("");

                        table.Cell().RowSpan(2).Element(CellStyle).Text("VERIFIED BY :").Bold().FontSize(12);
                        table.Cell().Element(CellStyle).Text("Signature").FontSize(12);
                        table.Cell().Element(CellStyle).Text("");
                        table.Cell().Element(CellStyle).Text("Date").FontSize(12);
                        table.Cell().Element(CellStyle).Text("");

                        table.Cell().Element(CellStyle).Text("Designation").FontSize(12);
                        table.Cell().ColumnSpan(3).Element(CellStyle).Text("");
                    });
                });

                // Footer Section
                page.Footer().AlignCenter().Text(text =>
                {
                    text.Span("Page ");
                    text.CurrentPageNumber();
                    text.Span(" of ");
                    text.TotalPages();
                });

                static IContainer CellStyle(IContainer container) => container.Border(0.5f).Padding(5);
            });
        }
    }
}