backend/src/services/mail.services.js

const log = require('../utils/log.utils')
const fs = require('fs/promises')
const mail = require('nodemailer'); //>> Probs wrong

const fromAdrr = process.env.OWL_EML_FROM
const smtpUser = process.env.OWL_EML_USER
const smtpPass = process.env.OWL_EML_PASS
const smtpHost = process.env.OWL_EML_HOST
const smtpPort = process.env.OWL_EML_PORT

let transporter = mail.createTransport({
    host: smtpHost,
    port: smtpPort,
    secure: false,  // Must be false for STARTTLS on port 587
    auth: {
        user: smtpUser,
        pass: smtpPass
    }
})

async function sendTest(to, cc, bcc) {
    log.out(`mailServices.sendTest: Sending test message to: ${to}`, "info")
    let tHtml = fs.readFile('mail-templates/register.html', 'utf-8');
    let tTxt = fs.readFile('mail-templates/register.txt', 'utf-8');
    // Send test mail message
    try {
      var res = await transporter.sendMail({
        from: fromAdrr,
        to: to,
        cc: cc,
        bcc: bcc,
        subject: "Test Message from OwlBoard",
        text: (await tTxt).replace(/>>ACCESSCODE<</g, "TEST-MESSAGE-ONLY"),
        html: (await tHtml).replace(/>>ACCESSCODE<</g, "TEST-MESSAGE-ONLY")
      });
    } catch(err) {
        log.out(err, "warn")
        var res = "failed"
    }
    return res;
}

async function sendRegister(to, accesscode) {
    log.out(`mailServices.sendRegister: Sending registration message to: ${to}`, "info")
    let tHtml = fs.readFile('mail-templates/register.html', 'utf-8');
    let tTxt = fs.readFile('mail-templates/register.txt', 'utf-8');
    // Send test mail message
    try {
      var res = transporter.sendMail({
        from: fromAdrr,
        to: to,
        cc: cc,
        bcc: bcc,
        subject: "OwlBoard - Complete Registration",
        text: (await tTxt).replace(/>>ACCESSCODE<</g, accesscode),
        html: (await tHtml).replace(/>>ACCESSCODE<</g, accesscode)
      });
      return await res;
    } catch(err) {
        log.out("mailServices.sendRegister: Mail send failed")
        log.out(err, "warn")
        return "failed"
    }
}

async function sendAlert() {
    return;
}

module.exports = {
    sendTest,
    sendRegister,
    sendAlert
}