package net.gepafin.tendermanagement.model.request;

import com.itextpdf.text.*;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfPageEventHelper;
import com.itextpdf.text.pdf.PdfWriter;

public class CustomPageEvent extends PdfPageEventHelper {
    private String title;
    private int totalPages;

    public CustomPageEvent(String title, int totalPages) {
        this.title = title;
        this.totalPages = totalPages;
    }

    @Override
    public void onEndPage(PdfWriter writer, Document document) {
        PdfContentByte canvas = writer.getDirectContent();

        // Header - Add a title to each page at the top
        if (writer.getPageNumber() > 1) {
            Font headerFont = new Font(Font.FontFamily.HELVETICA, 6, Font.BOLD, new BaseColor(113, 121, 126)); // Gray color for header
            ColumnText.showTextAligned(
                    canvas,
                    Element.ALIGN_LEFT,
                    new Phrase(title, headerFont),
                    document.leftMargin(),  // Use left margin to align fully to the left
                    document.getPageSize().getHeight() - 30,  // Positioning header near top
                    0  // No rotation
            );
        }

        // Footer - Add page number at the bottom
        String footerText = String.format("Page %d of %d", writer.getPageNumber(), totalPages);

        // Set font for the footer
        Font footerFont = new Font(Font.FontFamily.HELVETICA, 10, Font.NORMAL, BaseColor.BLACK);

        // Positioning footer near bottom
        ColumnText.showTextAligned(writer.getDirectContent(),
                Element.ALIGN_LEFT,
                new Phrase(footerText, footerFont),
                (document.right() + document.left()) / 2,
                document.bottomMargin() - 10, // Positioning footer near bottom
                0);

        // Draw a yellow line below header
        if (writer.getPageNumber() > 1) {
            canvas.setLineWidth(1.5f);
            canvas.setColorStroke(new BaseColor(255, 219, 88));  // Yellow color
            float yPos = document.getPageSize().getHeight() - 50f; // Position for the line below header
            canvas.moveTo(0, yPos);
            canvas.lineTo(document.getPageSize().getWidth(), yPos);
            canvas.stroke();
        }

        // Draw another line 50 points above the bottom of the document
        canvas.setLineWidth(1.5f);
        canvas.setColorStroke(new BaseColor(255, 219, 88));  // Yellow color
        float lineYPos = document.bottomMargin() + 25f; // Position for the line above the bottom margin
        canvas.moveTo(0, lineYPos);
        canvas.lineTo(document.getPageSize().getWidth(), lineYPos);
        canvas.stroke();
    }

    public void setTotalPages(int totalPages) {
        this.totalPages = totalPages;
    }
}