const PDFDocument = require('pdfkit');
const { spawn } = require('child_process');


module.exports = {
    generateFile(username, studentId) {
        // Create the output text
        const infoArray = [
            'Username:',
            `${username}`,
            '',
            'Email:',
            `${username}@kvcc.me.edu`,
            '',
            'Student ID:',
            `${studentId}`,
            '',
            'Note: When signing into the MyKV Portal, use your Username not your Email.',
            'For further assistance contact ithelp@mainecc.edu'
        ];
        const infoString = infoArray.join('\n');
        // Create a new PDF document
        const doc = new PDFDocument();

        // Create a print process (e.g., using `lp` to print the PDF directly)
        const printer = spawn('lp', ['-d', 'ITThermal']); // Replace 'printer_name' with your actual printer

        // Pipe the PDF document output to the printing process
        doc.pipe(printer.stdin);

        // Add image and text to the PDF
        doc.image('./public/itslogo.jpg', {
        fit: [576, 261],
        align: 'center',
        valign: 'top'
        });

        doc.moveDown();
        doc.fontSize(16).text(infoString, {
        align: 'left'
        });

        // Finalize the PDF and close the stream
        doc.end();

        // Listen for the print process to finish
        printer.on('close', (code) => {
        if (code === 0) {
            console.log('Printed successfully');
        } else {
            console.error('Failed to print');
        }
        });
    }
}