import PDFDocument from 'pdfkit';
import fs from 'fs';
import path from 'path';
import { fileURLToPath } from 'url';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

export async function generateTicketPDF({ ticketId, match, name, email, phone, seats, pdfFile }) {
  const doc = new PDFDocument({
    size: 'A4',
    margin: 50
  });

  const outputPath = path.join(__dirname, '../uploads', `ticket-${ticketId}.pdf`);
  const writeStream = fs.createWriteStream(outputPath);
  doc.pipe(writeStream);

  // Add logo if exists
  const logoPath = path.join(__dirname, '../assets/logo.png');
  if (fs.existsSync(logoPath)) {
    doc.image(logoPath, 50, 50, { width: 100 });
  }

  // Add ticket information
  doc.fontSize(24).text('Handball Match Ticket', { align: 'center' });
  doc.moveDown();
  doc.fontSize(16).text(match.name, { align: 'center' });
  doc.moveDown();

  // Add match details
  doc.fontSize(12);
  doc.text(`Date: ${new Date(match.date).toLocaleString()}`);
  doc.text(`Location: ${match.location}`);

  // Add detailed seat information
  doc.text('Seats:');
  seats.forEach(seat => {
    doc.text(`  - ${seat.direction || 'Seat'} ${seat.extractedSeatNumber || seat.seatNumber}`);
  });

  doc.moveDown();

  // Add customer details
  doc.text('Customer Information:');
  doc.text(`Name: ${name}`);
  doc.text(`Email: ${email}`);
  doc.text(`Phone: ${phone}`);
  doc.moveDown();

  // Add ticket ID
  doc.text(`Ticket ID: ${ticketId}`);
  doc.moveDown();

  // Add QR code or barcode if needed
  // TODO: Add QR code generation

  // Add terms and conditions
  doc.fontSize(10);
  doc.text('Terms and Conditions:', { underline: true });
  doc.text('1. This ticket is non-refundable');
  doc.text('2. Please arrive at least 30 minutes before the match');
  doc.text('3. Present this ticket at the entrance');

  // Finalize PDF
  doc.end();

  return new Promise((resolve, reject) => {
    writeStream.on('finish', () => {
      resolve(outputPath);
    });
    writeStream.on('error', reject);
  });
}