import React from 'react';
import { renderToBuffer } from '@react-pdf/renderer';
import QRCode from 'qrcode';
import { TicketPDF } from '../ticket-pdf';

interface TicketData {
  userName?: string;
  eventName?: string;
  eventDate?: string;
  eventTime?: string;
  venue?: string;
  ticketType?: string;
  amount?: string;
  ticketNumber?: string;
  purchaseDate?: string;
  orderId?: string;
  seatNumber?: string;
  section?: string;
}

export async function generateTicketPDF(data: TicketData): Promise<Buffer> {
  // Generate QR code as data URL
  const qrCodeData = data.ticketNumber || `TICKET-${Date.now()}`;
  const qrCodeDataUrl = await QRCode.toDataURL(qrCodeData, {
    width: 300,
    margin: 2,
    color: {
      dark: '#000000',
      light: '#FFFFFF',
    },
  });

  // Create PDF document
  const pdfDoc = React.createElement(TicketPDF, {
    ...data,
    qrCodeDataUrl,
  });

  // Render to buffer
  const pdfBuffer = await renderToBuffer(pdfDoc);

  return pdfBuffer;
}