feat(api): decouple api from curriculum (#40703)

api-server/common/utils/auth.js

@@ -1,80 +0,0 @@
-import path from 'path';
-
-import dedent from 'dedent';
-import loopback from 'loopback';
-import moment from 'moment';
-
-export const renderSignUpEmail = loopback.template(
-  path.join(
-    __dirname,
-    '..',
-    '..',
-    'server',
-    'views',
-    'emails',
-    'user-request-sign-up.ejs'
-  )
-);
-
-export const renderSignInEmail = loopback.template(
-  path.join(
-    __dirname,
-    '..',
-    '..',
-    'server',
-    'views',
-    'emails',
-    'user-request-sign-in.ejs'
-  )
-);
-
-export const renderEmailChangeEmail = loopback.template(
-  path.join(
-    __dirname,
-    '..',
-    '..',
-    'server',
-    'views',
-    'emails',
-    'user-request-update-email.ejs'
-  )
-);
-
-export function getWaitPeriod(ttl) {
-  const fiveMinutesAgo = moment().subtract(5, 'minutes');
-  const lastEmailSentAt = moment(new Date(ttl || null));
-  const isWaitPeriodOver = ttl
-    ? lastEmailSentAt.isBefore(fiveMinutesAgo)
-    : true;
-
-  if (!isWaitPeriodOver) {
-    const minutesLeft = 5 - (moment().minutes() - lastEmailSentAt.minutes());
-    return minutesLeft;
-  }
-
-  return 0;
-}
-
-export function getWaitMessage(ttl) {
-  const minutesLeft = getWaitPeriod(ttl);
-  if (minutesLeft <= 0) {
-    return null;
-  }
-
-  const timeToWait = minutesLeft
-    ? `${minutesLeft} minute${minutesLeft > 1 ? 's' : ''}`
-    : 'a few seconds';
-
-  return dedent`
-    Please wait ${timeToWait} to resend an authentication link.
-  `;
-}
-
-export function getEncodedEmail(email) {
-  if (!email) {
-    return null;
-  }
-  return Buffer.from(email).toString('base64');
-}
-
-export const decodeEmail = email => Buffer.from(email, 'base64').toString();