From 357cc504bde949d5be4645af69e551b5aecff648 Mon Sep 17 00:00:00 2001
From: Ahmad Abdolsaheb <ahmad.abdolsaheb@gmail.com>
Date: Mon, 23 Jun 2025 18:40:13 +0300
Subject: [PATCH] Test adding transcript tabs to lectures (#60948)

---
 client/i18n/locales/english/translations.json |  1 +
 .../components/challenge-transcript.tsx       | 13 ++-
 .../src/templates/Challenges/generic/show.css |  9 ++
 .../src/templates/Challenges/generic/show.tsx | 83 ++++++++++++++++---
 4 files changed, 95 insertions(+), 11 deletions(-)

diff --git a/client/i18n/locales/english/translations.json b/client/i18n/locales/english/translations.json
index 0f891d0e415..5b7c2edd728 100644
--- a/client/i18n/locales/english/translations.json
+++ b/client/i18n/locales/english/translations.json
@@ -419,6 +419,7 @@
     "answered-mcq": "You have unanswered questions and/or incorrect answers.",
     "explanation": "Explanation",
     "transcript": "Transcript",
+    "video": "Video",
     "solution-link": "Solution Link",
     "source-code-link": "Source Code Link",
     "ms-link": "Microsoft Link",
diff --git a/client/src/templates/Challenges/components/challenge-transcript.tsx b/client/src/templates/Challenges/components/challenge-transcript.tsx
index 782f013dd80..cc3ad08c406 100644
--- a/client/src/templates/Challenges/components/challenge-transcript.tsx
+++ b/client/src/templates/Challenges/components/challenge-transcript.tsx
@@ -8,10 +8,12 @@ import './challenge-transcript.css';
 
 interface ChallengeTranscriptProps {
   transcript: string;
+  showTranscriptTabs?: boolean;
 }
 
 function ChallengeTranscript({
-  transcript
+  transcript,
+  showTranscriptTabs
 }: ChallengeTranscriptProps): JSX.Element {
   const { t } = useTranslation();
 
@@ -26,6 +28,15 @@ function ChallengeTranscript({
     setIsOpen(!isOpen);
   }
 
+  if (showTranscriptTabs)
+    return (
+      <>
+        <Spacer size='m' />
+        <PrismFormatted className={'line-numbers'} text={transcript} />
+        <Spacer size='m' />
+      </>
+    );
+
   return (
     <>
       <details data-testid='challenge-transcript' open={isOpen}>
diff --git a/client/src/templates/Challenges/generic/show.css b/client/src/templates/Challenges/generic/show.css
index 7c4f7d49b38..1b7bd088fb3 100644
--- a/client/src/templates/Challenges/generic/show.css
+++ b/client/src/templates/Challenges/generic/show.css
@@ -31,3 +31,12 @@ input[type='checkbox']:checked::before {
 audio {
   background-color: aqua;
 }
+
+.transcript-tabs button[aria-selected='false'] {
+  color: var(--secondary-color);
+  background-color: transparent;
+}
+
+.transcript-tabs button[aria-selected='false']:hover {
+  background-color: var(--quaternary-background);
+}
diff --git a/client/src/templates/Challenges/generic/show.tsx b/client/src/templates/Challenges/generic/show.tsx
index f8058e9db0f..d981a6f714a 100644
--- a/client/src/templates/Challenges/generic/show.tsx
+++ b/client/src/templates/Challenges/generic/show.tsx
@@ -3,10 +3,21 @@ import React, { useEffect, useRef, useState } from 'react';
 import Helmet from 'react-helmet';
 import { useTranslation } from 'react-i18next';
 import { connect } from 'react-redux';
-import { Container, Col, Row, Button, Spacer } from '@freecodecamp/ui';
+import {
+  Container,
+  Col,
+  Row,
+  Button,
+  Spacer,
+  Tabs,
+  TabsContent,
+  TabsTrigger,
+  TabsList
+} from '@freecodecamp/ui';
 import { isEqual } from 'lodash';
 import store from 'store';
 import { YouTubeEvent } from 'react-youtube';
+import { useFeatureIsOn } from '@growthbook/growthbook-react';
 
 // Local Utilities
 import LearnLayout from '../../../components/layouts/learn';
@@ -104,6 +115,11 @@ const ShowGeneric = ({
   const { t } = useTranslation();
   const container = useRef<HTMLElement | null>(null);
 
+  // just test on this particular block
+  const transcriptTabsFlagIsOn = useFeatureIsOn('transcript-tabs');
+  const showTranscriptTabs =
+    block === 'lecture-html-fundamentals' && transcriptTabsFlagIsOn;
+
   const blockNameTitle = `${t(
     `intro:${superBlock}.blocks.${block}.title`
   )} - ${title}`;
@@ -127,6 +143,11 @@ const ShowGeneric = ({
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
+  const tabs = {
+    transcript: 'transcript',
+    video: 'video'
+  } as const;
+
   // video
   const [videoIsLoaded, setVideoIsLoaded] = useState(false);
 
@@ -228,7 +249,54 @@ const ShowGeneric = ({
             )}
 
             <Col lg={10} lgOffset={1} md={10} mdOffset={1}>
-              {videoId && (
+              {showTranscriptTabs && (
+                <Tabs
+                  defaultValue={tabs.transcript}
+                  className='transcript-tabs'
+                >
+                  <TabsList className='nav-lists'>
+                    <TabsTrigger value={tabs.transcript}>
+                      {t('learn.transcript')}
+                    </TabsTrigger>
+                    <TabsTrigger value={tabs.video}>
+                      {t('learn.video')}
+                    </TabsTrigger>
+                  </TabsList>
+                  <TabsContent
+                    tabIndex={-1}
+                    className='tab-content'
+                    value={tabs.transcript}
+                  >
+                    {transcript && (
+                      <ChallengeTranscript
+                        showTranscriptTabs={showTranscriptTabs}
+                        transcript={transcript}
+                      />
+                    )}
+                  </TabsContent>
+
+                  <TabsContent
+                    tabIndex={-1}
+                    className='tab-content'
+                    value={tabs.video}
+                  >
+                    {videoId && (
+                      <>
+                        <VideoPlayer
+                          bilibiliIds={bilibiliIds}
+                          onVideoLoad={handleVideoIsLoaded}
+                          title={title}
+                          videoId={videoId}
+                          videoIsLoaded={videoIsLoaded}
+                          videoLocaleIds={videoLocaleIds}
+                        />
+                        <Spacer size='m' />
+                      </>
+                    )}
+                  </TabsContent>
+                </Tabs>
+              )}
+              {videoId && !showTranscriptTabs && (
                 <>
                   <VideoPlayer
                     bilibiliIds={bilibiliIds}
@@ -246,8 +314,9 @@ const ShowGeneric = ({
             {scene && <Scene scene={scene} sceneSubject={sceneSubject} />}
 
             <Col md={8} mdOffset={2} sm={10} smOffset={1} xs={12}>
-              {transcript && <ChallengeTranscript transcript={transcript} />}
-
+              {transcript && !showTranscriptTabs && (
+                <ChallengeTranscript transcript={transcript} />
+              )}
               {instructions && (
                 <>
                   <ChallengeDescription
@@ -257,7 +326,6 @@ const ShowGeneric = ({
                   <Spacer size='m' />
                 </>
               )}
-
               {assignments.length > 0 && (
                 <Assignments
                   assignments={assignments}
@@ -265,7 +333,6 @@ const ShowGeneric = ({
                   handleAssignmentChange={handleAssignmentChange}
                 />
               )}
-
               {questions.length > 0 && (
                 <MultipleChoiceQuestions
                   questions={questions}
@@ -275,15 +342,12 @@ const ShowGeneric = ({
                   showFeedback={showFeedback}
                 />
               )}
-
               {explanation ? (
                 <ChallengeExplanation explanation={explanation} />
               ) : null}
-
               {!hasAnsweredMcqCorrectly && (
                 <p className='text-center'>{t('learn.answered-mcq')}</p>
               )}
-
               <Button block={true} variant='primary' onClick={handleSubmit}>
                 {blockType === BlockTypes.review
                   ? t('buttons.submit')
@@ -293,7 +357,6 @@ const ShowGeneric = ({
               <Button block={true} variant='primary' onClick={openHelpModal}>
                 {t('buttons.ask-for-help')}
               </Button>
-
               <Spacer size='l' />
             </Col>
             <CompletionModal />