chore: remove unused api endpoints (#45085)

* chore: remove /refetch-user-completed-challenges

* chore: remove /update-my-theme

Theme changes are handled by /update-user-flag

I left 'update-my-theme' in the blocklist to allow for future use.

* chore: remove /certificate/verify-can-claim-cert

The client has not been using this for several weeks

* feat: return 410 for redundant endpoints

* chore: order endpoints

api-server/src/common/utils/themes.js

@@ -1,9 +0,0 @@
-export const themes = {
-  night: 'night',
-  default: 'default'
-};
-
-export const invertTheme = currentTheme =>
-  !currentTheme || currentTheme === themes.default
-    ? themes.night
-    : themes.default;

api-server/src/server/boot/certificate.js

@@ -52,7 +52,6 @@ export default function bootCertificate(app) {
   api.put('/certificate/verify', ifNoUser401, ifNoSuperBlock404, verifyCert);
   api.get('/certificate/showCert/:username/:certSlug', showCert);
   api.get('/certificate/verify-can-claim-cert', verifyCanClaimCert);
-
   app.use(api);
 }
 

api-server/src/server/boot/settings.js

@@ -4,7 +4,6 @@ import isURL from 'validator/lib/isURL';
 
 import { isValidUsername } from '../../../../utils/validate';
 import { alertTypes } from '../../common/utils/flash.js';
-import { themes } from '../../common/utils/themes.js';
 import { ifNoUser401, createValidatorErrorHandler } from '../utils/middleware';
 
 const log = debug('fcc:boot:settings');
@@ -16,11 +15,7 @@ export default function settingsController(app) {
 
   api.put('/update-privacy-terms', ifNoUser401, updatePrivacyTerms);
 
-  api.post(
-    '/refetch-user-completed-challenges',
-    ifNoUser401,
-    refetchCompletedChallenges
-  );
+  api.post('/refetch-user-completed-challenges', gone);
   api.post(
     '/update-my-current-challenge',
     ifNoUser401,
@@ -29,13 +24,7 @@ export default function settingsController(app) {
     updateMyCurrentChallenge
   );
   api.post('/update-my-portfolio', ifNoUser401, updateMyPortfolio);
-  api.post(
-    '/update-my-theme',
-    ifNoUser401,
-    updateMyThemeValidators,
-    createValidatorErrorHandler(alertTypes.danger),
-    updateMyTheme
-  );
+  api.post('/update-my-theme', gone);
   api.put('/update-my-about', ifNoUser401, updateMyAbout);
   api.put(
     '/update-my-email',
@@ -61,6 +50,15 @@ const standardSuccessMessage = {
   message: 'flash.updated-preferences'
 };
 
+function gone(_, res) {
+  return res.status(410).json({
+    message: {
+      type: 'info',
+      message: 'Please reload the app, this feature is no longer available.'
+    }
+  });
+}
+
 const createStandardHandler = (req, res, next) => err => {
   if (err) {
     res.status(500).json(standardErrorMessage);
@@ -69,13 +67,6 @@ const createStandardHandler = (req, res, next) => err => {
   return res.status(200).json(standardSuccessMessage);
 };
 
-function refetchCompletedChallenges(req, res, next) {
-  const { user } = req;
-  return user
-    .requestCompletedChallenges()
-    .subscribe(completedChallenges => res.json({ completedChallenges }), next);
-}
-
 const updateMyEmailValidators = [
   check('email').isEmail().withMessage('Email format is invalid.')
 ];
@@ -114,25 +105,6 @@ function updateMyCurrentChallenge(req, res, next) {
   );
 }
 
-const updateMyThemeValidators = [
-  check('theme').isIn(Object.keys(themes)).withMessage('Theme is invalid.')
-];
-
-function updateMyTheme(req, res, next) {
-  const {
-    body: { theme }
-  } = req;
-  if (req.user.theme === theme) {
-    return res.sendFlash(alertTypes.info, 'Theme already set');
-  }
-  return req.user
-    .updateTheme(theme)
-    .then(
-      () => res.sendFlash(alertTypes.info, 'Your theme has been updated!'),
-      next
-    );
-}
-
 function updateMyPortfolio(req, res, next) {
   const {
     user,