Add notifs for major changes when logging in

Also got rid of a console log lol

client/src/modules/Profile/Component/Profile.tsx

@@ -1,4 +1,4 @@
-import React, { useEffect, useState } from 'react';
+import React, { useEffect, useRef, useState } from 'react';
 import { Redirect } from 'react-router-dom';
 
 import axios from 'axios';
@@ -29,6 +29,7 @@ const Profile = () => {
   const [pendingReviews, setPendingReviews] = useState<ReviewType[]>([]);
   const [approvedReviews, setApprovedReviews] = useState<ReviewType[]>([]);
 
+  const savedSessionReview = useRef<NewReview | null>(null);
   const [upvoteCount, setUpvoteCount] = useState(0);
 
   const { isLoggedIn, token, netId, isAuthenticating, signOut } =
@@ -128,10 +129,28 @@ const Profile = () => {
       }
     }
 
+    const checkForUpdatedMajor = async (review: NewReview) => {
+      const getMajorsReq = await axios.post('/api/profiles/get-majors', { netId })
+      if (getMajorsReq.status === 200) {
+        const oldMajors = getMajorsReq.data.majors
+        if (oldMajors && review &&
+          JSON.stringify(oldMajors) !== JSON.stringify(review.major)) {
+          toast.info('Your major has been changed ' +
+            (oldMajors.length !== 0 && 'from ')
+            + oldMajors.join(',') + ' to '
+            + review.major.join(', ').replace(/(, )(?!.*\1)/,
+                (review.major.length > 2 ? ', and ' : ' and ')
+              ) + "."
+          )
+        }
+      }
+    }
+
     // Only update reviews if we have a given user's netId + they are no longer authenticating.
     if (netId && !isAuthenticating) {
       getReviews();
       getReviewsHelpful();
+      if (savedSessionReview.current) checkForUpdatedMajor(savedSessionReview.current)
     }
   }, [netId, isAuthenticating]);
 
@@ -186,6 +205,7 @@ const Profile = () => {
       sessionCourseId !== '' &&
       isLoggedIn
     ) {
+      savedSessionReview.current = sessionReview;
       submitReview(sessionReview, sessionCourseId);
     }
   }, [isLoggedIn, token]);

client/src/modules/Profile/Component/UserInfo.tsx

@@ -11,7 +11,6 @@ type UserInfoProps = {
   reviewsTotal: number;
   upvoteCount: number;
   netId: string;
-  majors: string[];
   signOut: () => void;
 }
 

server/src/profile/profile.controller.ts

@@ -41,9 +41,7 @@ export const getStudentReviewDocs = async ({ netId }: ProfileInfoRequestType) =>
   return reviews.filter((review) => review !== null);
 };
 
-export const getStudentMajors = async ({
-                                             netId
-                                           }: ProfileInfoRequestType) => {
+export const getStudentMajors = async ({ netId }: ProfileInfoRequestType) => {
   const student = await findStudent(netId);
 
   if (!student) {

server/src/profile/profile.router.ts

@@ -120,7 +120,6 @@ profileRouter.post('/get-majors', async (req, res) => {
  */
 profileRouter.post('/set-majors', async (req, res) => {
   try {
-    console.log(req.body)
     const { netId, majors }: ProfileMajorPostType = req.body;
     const profile: Profile = new Profile({ netId });