const log    = require('../utils/log.utils');
const crypto = require('crypto')
const db     = require('../services/dbAccess.services');
const fs     = require('fs/promises')

// Checks users registration key against issued keys
async function isAuthed(key) {  // Needs testing
    return false;
    q = {uuid: key};
    res = db.query("registrations", q);
    log.out(`authUtils.checkUser: DB Query answer: ${await res}`)
    
    // Do something here to determine if authorised or not and simply return a BOOL
    
    return
}

// Creates an API key for a user
async function generateKey() {  // Needs testing & moving to 'register.utils'
    return crypto.randomUUID()
};

async function generateConfirmationEmail(eml, uuid) {
    try {
        let htmlTpl = fs.readFile('mail-templates/register.html', 'utf-8');
        let txtTpl = fs.readFile('mail-templates/register.txt', 'utf-8');
        return msg = {
            to: eml,
            subject: "OwlBoard Registration",
            text: (await txtTpl).replace(/>>ACCESSCODE<</g, uuid),
            html: (await htmlTpl).replace(/>>ACCESSCODE<</g, uuid)
        }
    } catch(err) {
        log.out(`mailServices.generateConfirmationEmail: Error reading templates, $(err)`, "err");
        return false;
    }
}

module.exports = {
    isAuthed,
    generateKey,
    generateConfirmationEmail
}