const nodemailer = require('nodemailer');
const config = require('./config.json');

async function sendEmail(to, subject, text, html) {
  const transporter = nodemailer.createTransport({
    host: config.smtp.host,
    port: config.smtp.port,
    auth: config.smtp.auth,
    secure: config.smtp.secure,
    tls: config.smtp.tls
  });

  const mailOptions = {
    from: config.smtp.auth.user,
    to: to,
    subject: subject,
    text: text,
    html: html
  };

  try {
    const info = await transporter.sendMail(mailOptions);
    console.log('邮件发送成功:', info.messageId);
    return info;
  } catch (error) {
    console.error('邮件发送失败:', error);
    throw error;
  }
}

if (require.main === module) {
  const args = process.argv.slice(2);
  const to = args[0] || 'cbed@163.com';
  const subject = args[1] || '测试邮件';
  const text = args[2] || '这是一封通过 Node.js 发送的测试邮件。';
  const html = args[3] || '<p>这是一封通过 Node.js 发送的测试邮件。</p>';

  sendEmail(to, subject, text, html).catch(console.error);
}

module.exports = sendEmail;