const nodemailer = require('nodemailer');
const ejs = require('ejs');
const path = require('path');

const transporter = nodemailer.createTransport({
  service: 'gmail',
  auth: {
    user: process.env.EMAIL_USER,
    pass: process.env.EMAIL_PASS,
  },
});

const sendEmail = async (to, subject, templateName, templateData) => {
  // Render EJS template
  const templatePath = path.join(__dirname, '../views/emails', `${templateName}.ejs`);
  const html = await ejs.renderFile(templatePath, templateData);

  const mailOptions = {
    from: `"VC E-Commerce" <${process.env.EMAIL_USER}>`,
    to,
    subject,
    html,
  };

  try {
    await transporter.sendMail(mailOptions);
    console.log('Email sent to', to);
  } catch (err) {
    console.error('Error sending email', err);
    throw new Error('Failed to send email');
  }
};

module.exports = sendEmail;