const nodemailer = require('nodemailer');

exports.handler = function(context, event, callback) {
    let transporter = nodemailer.createTransport(
        {
            host: context.SMTP_HOST,
            port: context.SMTP_PORT,
            auth: {
                type: 'login',
                user: context.AWS_ACCESS_KEY_ID,
                pass: context.AWS_SECRET_ACCESS_KEY,
            },
        }
    );

    let email = {
        from: context.FROM_EMAIL_ADDRESS,
        to: context.TO_EMAIL_ADDRESS,
        subject: 'Subject',
        text: event.Body,
        priority: 'high',
    };

    let sendPromise = transporter.sendMail(email);

    sendPromise.then(
        function(data) {
            let twiml = new Twilio.twiml.MessagingResponse();
            callback(null, twiml);
        }
    ).catch(
        function(err) {
            callback(err);
        }
    );
};