#if !NET8
using System.Web;
using System.Web.Mvc;
using System.Web.Security;
#endif

#if !NET8
using iTextSharp.text;
using iTextSharp.text.pdf;
#endif

#if !NET8
using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Http;
using System.Security.Claims;
using System.Threading.Tasks;
#endif

namespace Fab2ApprovalSystem.PdfGenerator;

#if !NET8

public class PrintHeaderFooter : PdfPageEventHelper {

    private PdfContentByte pdfContent;
    private PdfTemplate pageNumberTemplate;
    private BaseFont baseFont;
    private DateTime printTime;
#endif

#if NET8

public class PrintHeaderFooter {

#endif

    public string Title { get; set; }

#if !NET8

    public override void OnOpenDocument(PdfWriter writer, Document document) {
        printTime = DateTime.Now;
        baseFont = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
        pdfContent = writer.DirectContent;
        pageNumberTemplate = pdfContent.CreateTemplate(50, 50);
    }

    public override void OnStartPage(PdfWriter writer, Document document) {
        base.OnStartPage(writer, document);

        Rectangle pageSize = document.PageSize;

        if (Title != string.Empty) {
            pdfContent.BeginText();
            pdfContent.SetFontAndSize(baseFont, 11);
            pdfContent.SetRGBColorFill(0, 0, 0);
            pdfContent.SetTextMatrix(pageSize.GetLeft(40), pageSize.GetTop(40));
            pdfContent.ShowText(Title);
            pdfContent.EndText();
        }
    }

    public override void OnEndPage(PdfWriter writer, Document document) {
        base.OnEndPage(writer, document);

        int pageN = writer.PageNumber;
        string text = pageN + " - ";
        float len = baseFont.GetWidthPoint(text, 8);

        Rectangle pageSize = document.PageSize;
        pdfContent = writer.DirectContent;
        pdfContent.SetRGBColorFill(100, 100, 100);

        pdfContent.BeginText();
        pdfContent.SetFontAndSize(baseFont, 8);
        pdfContent.SetTextMatrix(pageSize.Width / 2, pageSize.GetBottom(30));
        pdfContent.ShowText(text);
        pdfContent.EndText();

        pdfContent.AddTemplate(pageNumberTemplate, (pageSize.Width / 2) + len, pageSize.GetBottom(30));

        pdfContent.BeginText();
        pdfContent.SetFontAndSize(baseFont, 8);
        pdfContent.ShowTextAligned(PdfContentByte.ALIGN_RIGHT, printTime.ToString(), pageSize.GetRight(40), pageSize.GetBottom(30), 0);
        pdfContent.EndText();
    }

    public override void OnCloseDocument(PdfWriter writer, Document document) {
        base.OnCloseDocument(writer, document);

        pageNumberTemplate.BeginText();
        pageNumberTemplate.SetFontAndSize(baseFont, 8);
        pageNumberTemplate.SetTextMatrix(0, 0);
        pageNumberTemplate.ShowText(string.Empty + (writer.PageNumber - 1));
        pageNumberTemplate.EndText();
    }

#endif

}