feat: added browser logging

* feat: add language selection

chore: update tests so we have less error message

test: update test

* test: update tests

* chore: remove duplicate translation

* chore: lint for console

* chore: remove comments

* chore: make sure the affect url frame refresh after the language selection change

* chore: add whole_course_translation and language to courseware meta (#1305)

* feat: Add feedback widget UI mock

Add unit tests

Fix snapshot

Clean Sequence component logEvent calls

Clean unit test

Put feedback widget behind whole course translation flag

Fix useFeedbackWidget test

* chore: add src and dest translation

* feat: first iteration of plugin translation

chore: update plugin instruction

* feat: Connect FeedbackWidget with backend services (#1325)

Connect FeedbackWidget with backend services

Move feedback widget to unit translation plugin

* feat: Add authentication to WCT feedback endpoints (#1329)

* chore: add fetch config and move feedback widget for the plugin

chore: rewrite and test the api request

chore: rebase

chore: update translation feedback

chore: test

chore: add more tests

* chore: rebase

* chore: update requested change

* chore: update package

* chore: upgrade frontend-lib-special-exams and frontend-lib-learning-assistant

* chore: update tests

* chore: remove unneeded package

* chore: update example config

* chore: add source-map-loader

* fix: feedback widget render error after submit feedback (#1335)

* fix: feedback widget render error after submit feedback

* fix: widget logic

---------

Co-authored-by: Rodrigo Martin <rodrigom_94@hotmail.com>

.env

@@ -1,16 +1,51 @@
+# See README.rst for explanations of these.
+# If you add a new learning MFE-specific variable, please note it there!
+
 NODE_ENV='production'
-ACCESS_TOKEN_COOKIE_NAME=null
-BASE_URL=null
-CREDENTIALS_BASE_URL=null
-CSRF_TOKEN_API_PATH=null
-ECOMMERCE_BASE_URL=null
-LANGUAGE_PREFERENCE_COOKIE_NAME=null
-LMS_BASE_URL=null
-LOGIN_URL=null
-LOGOUT_URL=null
-MARKETING_SITE_BASE_URL=null
-ORDER_HISTORY_URL=null
-REFRESH_ACCESS_TOKEN_ENDPOINT=null
-SEGMENT_KEY=null
-SITE_NAME=null
-USER_INFO_COOKIE_NAME=null
+
+ACCESS_TOKEN_COOKIE_NAME=''
+AI_TRANSLATIONS_URL=''
+BASE_URL=''
+CONTACT_URL=''
+CREDENTIALS_BASE_URL=''
+CREDIT_HELP_LINK_URL=''
+CSRF_TOKEN_API_PATH=''
+DISCOVERY_API_BASE_URL=''
+DISCUSSIONS_MFE_BASE_URL=''
+ECOMMERCE_BASE_URL=''
+ENABLE_JUMPNAV='true'
+ENABLE_NEW_SIDEBAR=''
+ENABLE_NOTICES=''
+ENTERPRISE_LEARNER_PORTAL_HOSTNAME=''
+EXAMS_BASE_URL=''
+FAVICON_URL=''
+IGNORED_ERROR_REGEX=''
+INSIGHTS_BASE_URL=''
+LANGUAGE_PREFERENCE_COOKIE_NAME=''
+LMS_BASE_URL=''
+LOGIN_URL=''
+LOGOUT_URL=''
+LOGO_URL=''
+LOGO_TRADEMARK_URL=''
+LOGO_WHITE_URL=''
+LEGACY_THEME_NAME=''
+MARKETING_SITE_BASE_URL=''
+ORDER_HISTORY_URL=''
+PROCTORED_EXAM_FAQ_URL=''
+PROCTORED_EXAM_RULES_URL=''
+REFRESH_ACCESS_TOKEN_ENDPOINT=''
+SEARCH_CATALOG_URL=''
+SEGMENT_KEY=''
+SESSION_COOKIE_DOMAIN=''
+SITE_NAME=''
+SOCIAL_UTM_MILESTONE_CAMPAIGN=''
+STUDIO_BASE_URL=''
+SUPPORT_URL=''
+SUPPORT_URL_CALCULATOR_MATH=''
+SUPPORT_URL_ID_VERIFICATION=''
+SUPPORT_URL_VERIFIED_CERTIFICATE=''
+TERMS_OF_SERVICE_URL=''
+TWITTER_HASHTAG=''
+TWITTER_URL=''
+USER_INFO_COOKIE_NAME=''
+OPTIMIZELY_FULL_STACK_SDK_KEY=''

.env.development

@@ -1,17 +1,53 @@
+# See README.rst for explanations of these.
+# If you add a new learning MFE-specific variable, please note it there!
+
 NODE_ENV='development'
-PORT=2000
+
 ACCESS_TOKEN_COOKIE_NAME='edx-jwt-cookie-header-payload'
-BASE_URL='localhost:2000'
+AI_TRANSLATIONS_URL='http://localhost:18760'
+BASE_URL='http://localhost:2000'
+CONTACT_URL='http://localhost:18000/contact'
 CREDENTIALS_BASE_URL='http://localhost:18150'
+CREDIT_HELP_LINK_URL='https://edx.readthedocs.io/projects/edx-guide-for-students/en/latest/SFD_credit_courses.html#keep-track-of-credit-requirements'
 CSRF_TOKEN_API_PATH='/csrf/api/v1/token'
+DISCOVERY_API_BASE_URL='http://localhost:18381'
+DISCUSSIONS_MFE_BASE_URL='http://localhost:2002'
 ECOMMERCE_BASE_URL='http://localhost:18130'
+ENABLE_JUMPNAV='true'
+ENABLE_NEW_SIDEBAR=''
+ENABLE_NOTICES=''
+ENTERPRISE_LEARNER_PORTAL_HOSTNAME='localhost:8734'
+EXAMS_BASE_URL=''
+FAVICON_URL=https://edx-cdn.org/v3/default/favicon.ico
+IGNORED_ERROR_REGEX=''
 LANGUAGE_PREFERENCE_COOKIE_NAME='openedx-language-preference'
 LMS_BASE_URL='http://localhost:18000'
 LOGIN_URL='http://localhost:18000/login'
-LOGOUT_URL='http://localhost:18000/login'
+LOGOUT_URL='http://localhost:18000/logout'
+LOGO_URL=https://edx-cdn.org/v3/default/logo.svg
+LOGO_TRADEMARK_URL=https://edx-cdn.org/v3/default/logo-trademark.svg
+LOGO_WHITE_URL=https://edx-cdn.org/v3/default/logo-white.svg
+LEGACY_THEME_NAME=''
 MARKETING_SITE_BASE_URL='http://localhost:18000'
-ORDER_HISTORY_URL='localhost:1996/orders'
+ORDER_HISTORY_URL='http://localhost:1996/orders'
+PORT=2000
+PROCTORED_EXAM_FAQ_URL=''
+PROCTORED_EXAM_RULES_URL=''
 REFRESH_ACCESS_TOKEN_ENDPOINT='http://localhost:18000/login_refresh'
-SEGMENT_KEY=null
+SEARCH_CATALOG_URL='http://localhost:18000/courses'
+SEGMENT_KEY=''
 SITE_NAME='edX'
+SOCIAL_UTM_MILESTONE_CAMPAIGN='edxmilestone'
+STUDIO_BASE_URL='http://localhost:18010'
+SUPPORT_URL='https://support.edx.org'
+SUPPORT_URL_CALCULATOR_MATH='https://support.edx.org/hc/en-us/articles/360000038428-Entering-math-expressions-in-assignments-or-the-calculator'
+SUPPORT_URL_ID_VERIFICATION='https://support.edx.org/hc/en-us/articles/206503858-How-do-I-verify-my-identity'
+SUPPORT_URL_VERIFIED_CERTIFICATE='https://support.edx.org/hc/en-us/articles/206502008-What-is-a-verified-certificate'
+TERMS_OF_SERVICE_URL='https://www.edx.org/edx-terms-service'
+TWITTER_HASHTAG='myedxjourney'
+TWITTER_URL='https://twitter.com/edXOnline'
 USER_INFO_COOKIE_NAME='edx-user-info'
+SESSION_COOKIE_DOMAIN='localhost'
+CHAT_RESPONSE_URL='http://localhost:18000/api/learning_assistant/v1/course_id'
+PRIVACY_POLICY_URL='http://localhost:18000/privacy'
+OPTIMIZELY_FULL_STACK_SDK_KEY=''

.env.test

@@ -1,15 +1,50 @@
+# See README.rst for explanations of these.
+# If you add a new learning MFE-specific variable, please note it there!
+
+NODE_ENV='test'
+
 ACCESS_TOKEN_COOKIE_NAME='edx-jwt-cookie-header-payload'
-BASE_URL='localhost:1995'
+AI_TRANSLATIONS_URL='http://localhost:18760'
+BASE_URL='http://localhost:2000'
+CONTACT_URL='http://localhost:18000/contact'
 CREDENTIALS_BASE_URL='http://localhost:18150'
+CREDIT_HELP_LINK_URL='https://edx.readthedocs.io/projects/edx-guide-for-students/en/latest/SFD_credit_courses.html#keep-track-of-credit-requirements'
 CSRF_TOKEN_API_PATH='/csrf/api/v1/token'
+DISCOVERY_API_BASE_URL='http://localhost:18381'
+DISCUSSIONS_MFE_BASE_URL='http://localhost:2002'
 ECOMMERCE_BASE_URL='http://localhost:18130'
+ENABLE_JUMPNAV='true'
+ENABLE_NEW_SIDEBAR=''
+ENABLE_NOTICES=''
+ENTERPRISE_LEARNER_PORTAL_HOSTNAME='localhost:8734'
+EXAMS_BASE_URL='http://localhost:18740'
+FAVICON_URL=https://edx-cdn.org/v3/default/favicon.ico
+IGNORED_ERROR_REGEX=''
 LANGUAGE_PREFERENCE_COOKIE_NAME='openedx-language-preference'
 LMS_BASE_URL='http://localhost:18000'
 LOGIN_URL='http://localhost:18000/login'
-LOGOUT_URL='http://localhost:18000/login'
+LOGOUT_URL='http://localhost:18000/logout'
+LOGO_URL=https://edx-cdn.org/v3/default/logo.svg
+LOGO_TRADEMARK_URL=https://edx-cdn.org/v3/default/logo-trademark.svg
+LOGO_WHITE_URL=https://edx-cdn.org/v3/default/logo-white.svg
+LEGACY_THEME_NAME=''
 MARKETING_SITE_BASE_URL='http://localhost:18000'
-ORDER_HISTORY_URL='localhost:1996/orders'
+ORDER_HISTORY_URL='http://localhost:1996/orders'
+PORT=2000
+PROCTORED_EXAM_FAQ_URL=''
+PROCTORED_EXAM_RULES_URL=''
 REFRESH_ACCESS_TOKEN_ENDPOINT='http://localhost:18000/login_refresh'
-SEGMENT_KEY=null
+SEARCH_CATALOG_URL='http://localhost:18000/courses'
+SEGMENT_KEY=''
 SITE_NAME='edX'
+SOCIAL_UTM_MILESTONE_CAMPAIGN='edxmilestone'
+STUDIO_BASE_URL='http://localhost:18010'
+SUPPORT_URL='https://support.edx.org'
+SUPPORT_URL_CALCULATOR_MATH='https://support.edx.org/hc/en-us/articles/360000038428-Entering-math-expressions-in-assignments-or-the-calculator'
+SUPPORT_URL_ID_VERIFICATION='https://support.edx.org/hc/en-us/articles/206503858-How-do-I-verify-my-identity'
+SUPPORT_URL_VERIFIED_CERTIFICATE='https://support.edx.org/hc/en-us/articles/206502008-What-is-a-verified-certificate'
+TERMS_OF_SERVICE_URL='https://www.edx.org/edx-terms-service'
+TWITTER_HASHTAG='myedxjourney'
+TWITTER_URL='https://twitter.com/edXOnline'
 USER_INFO_COOKIE_NAME='edx-user-info'
+PRIVACY_POLICY_URL='http://localhost:18000/privacy'

.eslintignore

@@ -1,4 +1,5 @@
 coverage/*
 dist/
+packages/
 node_modules/
-jest.config.js
+jest.config.js

.eslintrc.js

@@ -1,3 +1,24 @@
-const { createConfig } = require('@edx/frontend-build');
+// eslint-disable-next-line import/no-extraneous-dependencies
+const { createConfig } = require('@openedx/frontend-build');
 
-module.exports = createConfig('eslint');
+const config = createConfig('eslint', {
+  rules: {
+    // TODO: all these rules should be renabled/addressed. temporarily turned off to unblock a release.
+    'react-hooks/rules-of-hooks': 'off',
+    'react-hooks/exhaustive-deps': 'off',
+    'import/no-extraneous-dependencies': 'off',
+    'no-restricted-exports': 'off',
+    'react/jsx-no-useless-fragment': 'off',
+    'react/no-unknown-property': 'off',
+    'func-names': 'off',
+  },
+  settings: {
+    'import/resolver': {
+      webpack: {
+        config: 'webpack.prod.config.js',
+      },
+    },
+  },
+});
+
+module.exports = config;

.github/workflows/add-depr-ticket-to-depr-board.yml

@@ -0,0 +1,19 @@
+# Run the workflow that adds new tickets that are either:
+# - labelled "DEPR"
+# - title starts with "[DEPR]"
+# - body starts with "Proposal Date" (this is the first template field)
+# to the org-wide DEPR project board
+
+name: Add newly created DEPR issues to the DEPR project board
+
+on:
+  issues:
+    types: [opened]
+
+jobs:
+  routeissue:
+    uses: openedx/.github/.github/workflows/add-depr-ticket-to-depr-board.yml@master
+    secrets:
+      GITHUB_APP_ID: ${{ secrets.GRAPHQL_AUTH_APP_ID }}
+      GITHUB_APP_PRIVATE_KEY: ${{ secrets.GRAPHQL_AUTH_APP_PEM }}
+      SLACK_BOT_TOKEN: ${{ secrets.SLACK_ISSUE_BOT_TOKEN }}

.github/workflows/add-remove-label-on-comment.yml

@@ -0,0 +1,20 @@
+# This workflow runs when a comment is made on the ticket
+# If the comment starts with "label: " it tries to apply
+# the label indicated in rest of comment.
+# If the comment starts with "remove label: ", it tries
+# to remove the indicated label.
+# Note: Labels are allowed to have spaces and this script does
+# not parse spaces (as often a space is legitimate), so the command
+# "label: really long lots of words label" will apply the
+# label "really long lots of words label"
+
+name: Allows for the adding and removing of labels via comment
+
+on:
+  issue_comment:
+    types: [created]
+
+jobs:
+  add_remove_labels:
+    uses: openedx/.github/.github/workflows/add-remove-label-on-comment.yml@master
+

.github/workflows/commitlint.yml

@@ -0,0 +1,10 @@
+# Run commitlint on the commit messages in a pull request.
+
+name: Lint Commit Messages
+
+on:
+  - pull_request
+
+jobs:
+  commitlint:
+    uses: openedx/.github/.github/workflows/commitlint.yml@master

.github/workflows/lockfileversion-check.yml

@@ -0,0 +1,13 @@
+#check package-lock file version
+
+name: Lockfile Version check
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+
+jobs:
+  version-check:
+    uses: openedx/.github/.github/workflows/lockfile-check.yml@master

.github/workflows/self-assign-issue.yml

@@ -0,0 +1,12 @@
+# This workflow runs when a comment is made on the ticket
+# If the comment starts with "assign me" it assigns the author to the
+# ticket (case insensitive)
+
+name: Assign comment author to ticket if they say "assign me"
+on:
+  issue_comment:
+    types: [created]
+
+jobs:
+  self_assign_by_comment:
+    uses: openedx/.github/.github/workflows/self-assign-issue.yml@master

.github/workflows/update-browserslist-db.yml

@@ -0,0 +1,12 @@
+name: Update Browserslist DB
+on:
+  schedule:
+    - cron:  '0 0 * * 1'
+  workflow_dispatch:
+
+jobs:
+  update-browserslist:
+    uses: openedx/.github/.github/workflows/update-browserslist-db.yml@master
+
+    secrets:
+        requirements_bot_github_token: ${{ secrets.requirements_bot_github_token }}

.github/workflows/validate.yml

@@ -0,0 +1,23 @@
+name: validate
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+    branches:
+    - '**'
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Setup Nodejs Env
+      run: echo "NODE_VER=`cat .nvmrc`" >> $GITHUB_ENV
+    - uses: actions/setup-node@v3
+      with:
+        node-version: ${{ env.NODE_VER }}
+    - run: make validate.ci
+    - name: Upload coverage
+      uses: codecov/codecov-action@v3
+      with:
+        fail_ci_if_error: true

.gitignore

@@ -1,18 +1,32 @@
 .DS_Store
 .eslintcache
 .idea
+*.swp
+*.swo
 node_modules
 npm-debug.log
 coverage
+env.config.*
 
 dist/
 src/i18n/transifex_input.json
 temp/babel-plugin-react-intl
+logs
 
 ### pyenv ###
 .python-version
 
-### Emacs ###
+### Editors ###
 *~
 /temp
 /.vscode
+
+# Local package dependencies
+module.config.js
+
+# Local environment overrides
+.env.private
+
+src/i18n/messages/
+
+env.config.jsx

.husky/_/.gitignore

@@ -0,0 +1 @@
+*

.husky/_/husky.sh

@@ -0,0 +1,31 @@
+#!/bin/sh
+if [ -z "$husky_skip_init" ]; then
+  debug () {
+    if [ "$HUSKY_DEBUG" = "1" ]; then
+      echo "husky (debug) - $1"
+    fi
+  }
+
+  readonly hook_name="$(basename "$0")"
+  debug "starting $hook_name..."
+
+  if [ "$HUSKY" = "0" ]; then
+    debug "HUSKY env variable is set to 0, skipping hook"
+    exit 0
+  fi
+
+  if [ -f ~/.huskyrc ]; then
+    debug "sourcing ~/.huskyrc"
+    . ~/.huskyrc
+  fi
+
+  export readonly husky_skip_init=1
+  sh -e "$0" "$@"
+  exitCode="$?"
+
+  if [ $exitCode != 0 ]; then
+    echo "husky - $hook_name hook exited with code $exitCode (error)"
+  fi
+
+  exit $exitCode
+fi

.husky/pre-commit

@@ -0,0 +1,4 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+npm run lint

.nvmrc

@@ -0,0 +1 @@
+18

.travis.yml

@@ -1,15 +0,0 @@
-language: node_js
-node_js: 12
-before_install:
-- npm install -g npm@6
-install:
-- npm ci
-script:
-- make validate-no-uncommitted-package-lock-changes
-- npm run i18n_extract
-- npm run lint
-- npm run test
-- npm run build
-- npm run is-es5
-after_success:
-- codecov

.tx/config

@@ -1,8 +0,0 @@
-[main]
-host = https://www.transifex.com
-
-[edx-platform.frontend-app-learning]
-file_filter = src/i18n/messages/<lang>.json
-source_file = src/i18n/transifex_input.json
-source_lang = en
-type = KEYVALUEJSON

Makefile

@@ -1,21 +1,17 @@
-transifex_resource = frontend-app-learning
-transifex_langs = "ar,fr,es_419,zh_CN"
-
+intl_imports = ./node_modules/.bin/intl-imports.js
 transifex_utils = ./node_modules/.bin/transifex-utils.js
 i18n = ./src/i18n
 transifex_input = $(i18n)/transifex_input.json
-tx_url1 = https://www.transifex.com/api/2/project/edx-platform/resource/$(transifex_resource)/translation/en/strings/
-tx_url2 = https://www.transifex.com/api/2/project/edx-platform/resource/$(transifex_resource)/source/
 
 # This directory must match .babelrc .
-transifex_temp = ./temp/babel-plugin-react-intl
+transifex_temp = ./temp/babel-plugin-formatjs
 
 precommit:
 	npm run lint
 	npm audit
 
 requirements:
-	npm install
+	npm ci
 
 i18n.extract:
 	# Pulling display strings from .jsx files into .json files...
@@ -33,22 +29,36 @@ detect_changed_source_translations:
 	# Checking for changed translations...
 	git diff --exit-code $(i18n)
 
-# Pushes translations to Transifex.  You must run make extract_translations first.
-push_translations:
-	# Pushing strings to Transifex...
-	tx push -s
-	# Fetching hashes from Transifex...
-	./node_modules/reactifex/bash_scripts/get_hashed_strings.sh $(tx_url1)
-	# Writing out comments to file...
-	$(transifex_utils) $(transifex_temp) --comments
-	# Pushing comments to Transifex...
-	./node_modules/reactifex/bash_scripts/put_comments.sh $(tx_url2)
 
-# Pulls translations from Transifex.
 pull_translations:
-	tx pull -f --mode reviewed --language=$(transifex_langs)
+	rm -rf src/i18n/messages
+	mkdir src/i18n/messages
+	cd src/i18n/messages \
+	  && atlas pull $(ATLAS_OPTIONS) \
+	           translations/frontend-platform/src/i18n/messages:frontend-platform \
+	           translations/paragon/src/i18n/messages:paragon \
+	           translations/frontend-component-header/src/i18n/messages:frontend-component-header \
+	           translations/frontend-component-footer/src/i18n/messages:frontend-component-footer \
+	           translations/frontend-lib-special-exams/src/i18n/messages:frontend-lib-special-exams \
+	           translations/frontend-app-learning/src/i18n/messages:frontend-app-learning
+
+	$(intl_imports) frontend-platform paragon frontend-component-header frontend-component-footer frontend-lib-special-exams frontend-app-learning
+
 
 # This target is used by Travis.
 validate-no-uncommitted-package-lock-changes:
 	# Checking for package-lock.json changes...
 	git diff --exit-code package-lock.json
+
+.PHONY: validate
+validate:
+	make validate-no-uncommitted-package-lock-changes
+	npm run i18n_extract
+	npm run lint -- --max-warnings 0
+	npm run test
+	npm run build
+
+.PHONY: validate.ci
+validate.ci:
+	npm ci
+	make validate

README.rst

@@ -1,22 +1,216 @@
-|Build Status| |Coveralls| |npm_version| |npm_downloads| |license|
-
+#####################
 frontend-app-learning
+#####################
+
+|codecov| |license|
+
+********
+Purpose
+********
+
+This is the Learning MFE (micro-frontend application), which renders all
+learner-facing course pages (like the course outline, the progress page,
+actual course content, etc).
+
+Please tag **@edx/engage-squad** on any PRs or issues.  Thanks.
+
+.. |codecov| image:: https://codecov.io/gh/edx/frontend-app-learning/branch/master/graph/badge.svg?token=3z7XvuzTq3
+   :target: https://codecov.io/gh/edx/frontend-app-learning
+.. |license| image:: https://img.shields.io/badge/license-AGPL-informational
+   :target: https://github.com/openedx/frontend-app-account/blob/master/LICENSE
+
+***************
+Getting Started
+***************
+
+Prerequisites
+=============
+
+The `devstack`_ is currently recommended as a development environment for your
+new MFE.  If you start it with ``make dev.up.lms`` that should give you
+everything you need as a companion to this frontend.
+
+Note that it is also possible to use `Tutor`_ to develop an MFE.  You can refer
+to the `relevant tutor-mfe documentation`_ to get started using it.
+
+.. _Devstack: https://github.com/openedx/devstack
+
+.. _Tutor: https://github.com/overhangio/tutor
+
+.. _relevant tutor-mfe documentation: https://github.com/overhangio/tutor-mfe#mfe-development
+
+To use this application, `devstack <https://github.com/openedx/devstack>`__ must be running and you must be logged into it.
+
+- Visit http://localhost:2000/course/course-v1:edX+DemoX+Demo_Course to view the demo course.  You can replace ``course-v1:edX+DemoX+Demo_Course`` with a different course key.
+
+Cloning and Startup
+===================
+
+.. code-block::
+
+  1. Clone your new repo:
+
+    ``git clone https://github.com/openedx/frontend-app-learning.git``
+
+  2. Use node v18.x.
+
+    The current version of the micro-frontend build scripts support node 18.
+    Using other major versions of node *may* work, but this is unsupported.  For
+    convenience, this repository includes an .nvmrc file to help in setting the
+    correct node version via `nvm <https://github.com/nvm-sh/nvm>`_.
+
+  3. Install npm dependencies:
+
+    ``cd frontend-app-learning && npm ci``
+
+  4. Start the dev server:
+
+    ``npm start``
+
+Local module development
 =========================
 
-Please tag **@edx/teaching-and-learning** on any PRs or issues.  Thanks.
+To develop locally on modules that are installed into this app, you'll need to create a ``module.config.js``
+file (which is git-ignored) that defines where to find your local modules, for instance::
 
-Introduction
-------------
+   module.exports = {
+     /*
+     Modules you want to use from local source code.  Adding a module here means that when this app
+     runs its build, it'll resolve the source from peer directories of this app.
 
-React app for edX learning.
+     moduleName: the name you use to import code from the module.
+     dir: The relative path to the module's source code.
+     dist: The sub-directory of the source code where it puts its build artifact.  Often "dist", though you
+       may want to use "src" if the module installs React as a peer/dev dependency.
+     */
+     localModules: [
+        { moduleName: '@openedx/paragon/scss', dir: '../paragon', dist: 'scss' },
+        { moduleName: '@openedx/paragon', dir: '../paragon', dist: 'dist' },
+        { moduleName: '@openedx/frontend-enterprise', dir: '../frontend-enterprise', dist: 'src' },
+        { moduleName: '@openedx/frontend-platform', dir: '../frontend-platform', dist: 'dist' },
+     ],
+   };
 
-.. |Build Status| image:: https://api.travis-ci.org/edx/frontend-app-learning.svg?branch=master
-   :target: https://travis-ci.org/edx/frontend-app-learning
-.. |Coveralls| image:: https://img.shields.io/coveralls/edx/frontend-app-learning.svg?branch=master
-   :target: https://coveralls.io/github/edx/frontend-app-learning
-.. |npm_version| image:: https://img.shields.io/npm/v/@edx/frontend-app-learning.svg
-   :target: @edx/frontend-app-learning
-.. |npm_downloads| image:: https://img.shields.io/npm/dt/@edx/frontend-app-learning.svg
-   :target: @edx/frontend-app-learning
-.. |license| image:: https://img.shields.io/npm/l/@edx/frontend-app-learning.svg
-   :target: @edx/frontend-app-learning
+See https://github.com/openedx/frontend-build#local-module-configuration-for-webpack for more details.
+
+Deployment
+==========
+
+The Learning MFE is similar to all the other Open edX MFEs. Read the Open
+edX Developer Guide's section on
+`MFE applications <https://edx.readthedocs.io/projects/edx-developer-docs/en/latest/developers_guide/micro_frontends_in_open_edx.html>`_.
+
+Environment Variables
+======================
+
+This MFE is configured via environment variables supplied at build time.
+All micro-frontends have a shared set of required environment variables,
+as documented in the Open edX Developer Guide under
+`Required Environment Variables <https://edx.readthedocs.io/projects/edx-developer-docs/en/latest/developers_guide/micro_frontends_in_open_edx.html#required-environment-variables>`_.
+
+The learning micro-frontend also supports the following additional variables:
+
+CREDIT_HELP_LINK_URL
+  A link to resources to help explain what course credit is and how to earn it.
+
+ENABLE_JUMPNAV
+  Enables the new Jump Navigation feature in the course breadcrumbs, defaulted to  the string 'true'.
+  Disable to have simple hyperlinks for breadcrumbs. Setting it to any other value but 'true' ('false','I love flags', 'etc' would disable the Jumpnav).
+  This feature flag is slated to be removed as jumpnav becomes default. Follow the progress of this ticket here:
+  https://openedx.atlassian.net/browse/TNL-8678
+
+SOCIAL_UTM_MILESTONE_CAMPAIGN
+  This value is passed as the ``utm_campaign`` parameter for social-share
+  links when celebrating learning milestones in the course. Optional.
+
+  Example: ``milestone``
+
+SUPPORT_URL_CALCULATOR_MATH
+  A link that explains how to use the in-course calculator. You can use the
+  one in the example below, if you don't want to have your own branded version.
+
+  Example: https://support.edx.org/hc/en-us/articles/360000038428-Entering-math-expressions-in-assignments-or-the-calculator
+
+SUPPORT_URL_ID_VERIFICATION
+  A link that explains how to verify your ID. Shown in contexts where you need
+  to verify yourself to earn a certificate. The example link below is probably too
+  edx.org-specific to use for your own site.
+
+  Example: https://support.edx.org/hc/en-us/articles/206503858-How-do-I-verify-my-identity
+
+SUPPORT_URL_VERIFIED_CERTIFICATE
+  A link that explains what a verified certificate is.  You can use the
+  one in the example below, if you don't want to have your own branded version.
+  Optional.
+
+  Example: https://support.edx.org/hc/en-us/articles/206502008-What-is-a-verified-certificate
+
+TWITTER_HASHTAG
+  This value is used in the Twitter social-share link when celebrating learning
+  milestones in the course. Will prefill the suggested post with this hashtag.
+  Optional.
+
+  Example: ``brandedhashtag``
+
+TWITTER_URL
+  A link to your Twitter account. The Twitter social-share link won't appear
+  unless this is set. Optional.
+
+  Example: https://twitter.com/edXOnline
+
+Getting Help
+===========
+
+If you're having trouble, we have discussion forums at
+https://discuss.openedx.org where you can connect with others in the community.
+
+Our real-time conversations are on Slack. You can request a `Slack
+invitation`_, then join our `community Slack workspace`_.  Because this is a
+frontend repository, the best place to discuss it would be in the `#wg-frontend
+channel`_.
+
+For anything non-trivial, the best path is to open an issue in this repository
+with as many details about the issue you are facing as you can provide.
+
+https://github.com/openedx/frontend-app-learning/issues
+
+For more information about these options, see the `Getting Help`_ page.
+
+.. _Slack invitation: https://openedx.org/slack
+.. _community Slack workspace: https://openedx.slack.com/
+.. _#wg-frontend channel: https://openedx.slack.com/archives/C04BM6YC7A6
+.. _Getting Help: https://openedx.org/community/connect
+
+Contributing
+============
+
+Contributions are very welcome.  Please read `How To Contribute`_ for details.
+
+.. _How To Contribute: https://openedx.org/r/how-to-contribute
+
+This project is currently accepting all types of contributions, bug fixes,
+security fixes, maintenance work, or new features.  However, please make sure
+to have a discussion about your new feature idea with the maintainers prior to
+beginning development to maximize the chances of your change being accepted.
+You can start a conversation by creating a new issue on this repo summarizing
+your idea.
+
+The Open edX Code of Conduct
+============================
+
+All community members are expected to follow the `Open edX Code of Conduct`_.
+
+.. _Open edX Code of Conduct: https://openedx.org/code-of-conduct/
+
+License
+=======
+
+The code in this repository is licensed under the AGPLv3 unless otherwise
+noted.
+
+Please see `LICENSE <LICENSE>`_ for details.
+
+Reporting Security Issues
+=========================
+
+Please do not report security issues in public. Please email security@openedx.org.

catalog-info.yaml

@@ -0,0 +1,18 @@
+# This file records information about this repo. Its use is described in OEP-55:
+# https://open-edx-proposals.readthedocs.io/en/latest/processes/oep-0055-proc-project-maintainers.html
+
+apiVersion: backstage.io/v1alpha1
+kind: Component
+metadata:
+  name: 'frontend-app-learning'
+  description: "This is the Learning MFE, which renders all learner-facing course pages."
+  links:
+    - url: "https://github.com/openedx/frontend-app-learning"
+      title: "Learning MFE"
+      icon: "Web"
+  annotations:
+    openedx.org/arch-interest-groups: ""
+spec:
+  owner: group:2u-aurora
+  type: 'website'
+  lifecycle: 'production'

docs/decisions/0002-courseware-page-decisions.md

@@ -1,5 +1,7 @@
 # Courseware Page Decisions
 
+**See [0009-courseware-api-direction.md](0009-courseware-api-direction.md) for updates!**
+
 ## Courseware data loading
 
 Today we have strictly hierarchical courses - a course contains sections, which contain sequences, which contain units, which contain components.
@@ -37,6 +39,9 @@ Today, if the URL only specifies the course ID, we need to pick a sequence to sh
 
 Similarly, if the URL doesn't contain a unit ID, we use the `position` field of the sequence to determine which unit we want to display from that sequence.  If the position isn't specified in the sequence, we choose the first unit of the sequence.  After determining which unit to display, we update the URL to match.  After the URL is updated, the application will attempt to load that unit via an iFrame.
 
+_This URL scheme has been expanded upon in
+[ADR #8: Liberal courseware path handling](./0008-liberal-courseware-path-handling.md)._
+
 ## "Container" components vs. display components
 
 This application makes use of a few "container" components at the top level - CoursewareContainer and CourseHomeContainer.

docs/decisions/0004-model-store.md

@@ -4,4 +4,6 @@ Because we have a variety of models in this app (course, section, sequence, unit
 
 https://redux.js.org/faq/organizing-state#how-do-i-organize-nested-or-duplicate-data-in-my-state
 
-(As an additional data point, djoy has stored data in this format in multiple projects over the years and found it to be very effective)
+Different modules of the application maintain individual/lists of IDs that reference data stored in the model store.  These are akin to indices in a database, in that they allow you to quickly extract data from the model store without iteration or filtering.  
+
+A common pattern when loading data from an API endpoint is to use the model-store's redux actions (addModel, updateModel, etc.) to load the "models" themselves into the model store by ID, and then dispatch another action to save references elsewhere in the redux store to the data that was just added.  When adding courses, sequences, etc., to model-store, we also save the courseId and sequenceId in the 'courseware' part of redux.  This means the courseware React Components can extract the data from the model-store quickly by using the courseId as a key: `state.models.courses[state.courseware.courseId]`.  For an array, it iterates once over the ID list in order to extract the models from model-store.  This iteration is done when React components' re-render, and can be done less often through memoization as necessary.

docs/decisions/0006-thunk-and-api-naming.md

@@ -0,0 +1,24 @@
+# Naming API functions and redux thunks
+
+Because API functions and redux thunks are two parts of a larger process, we've informally settled on some naming conventions for them to help differentiate the type of code we're looking at.
+
+## API Functions
+
+This micro-frontend follows a pattern of naming API functions with a prefix for their HTTP verb.
+
+Examples:
+
+`getCourseBlocks` - The GET request we make to load course blocks data.
+`postSequencePosition` - The POST request for saving sequence position.
+
+## Redux Thunks
+
+Meanwhile, we use a different set of verbs for redux thunks to differentiate them from the API functions.  For instance, we use the `fetch` prefix for loading data (primarily via GET requests), and `save` for sending data back to the server (primarily via POST or PATCH requests)
+
+Examples:
+
+`fetchCourse` - The thunk for getting course data across several APIs.
+`fetchSequence` - The thunk for the process of retrieving sequence data.
+`saveSequencePosition` - Wraps the POST request for sending sequence position back to the server.
+
+The verb prefixes for thunks aren't perfect - but they're a little more 'friendly' and semantically meaningful than the HTTP verbs used for APIs.  So far we have `fetch`, `save`, `check`, `reset`, etc.

docs/decisions/0007-testing.md

@@ -0,0 +1,66 @@
+# Testing
+
+## Status
+Draft
+
+Let's live with this a bit longer before deciding it's a solid approach and marking this Approved.
+
+## Context
+We'd like to all be on the same page about how to approach testing, what is
+worth testing, and how to do it.
+
+## React Testing Library
+We'll use react-testing-library and jest as the main testing tools.
+
+This has some implications about how to test. You can read the React Testing Library's
+[Guiding Principles](https://testing-library.com/docs/guiding-principles), but the main
+takeaway is that you should be interacting with React as closely as possible to the way
+the user will interact with it.
+
+For example, they discourage using class or element name selectors to find components
+during a test. Instead, you should find them by user-oriented attributes like labels,
+text, or roles. As a last resort, by a `data-testid` tag.
+
+## Mocking data
+We'll use [Rosie](https://github.com/rosiejs/rosie) as a tool for building JavaScript objects.
+Our main use case for Rosie is to use factories in order to mock the data we'd like to fetch when rendering components.
+[axios-mock-adapter](https://www.npmjs.com/package/axios-mock-adapter) allows us to mock the response of an HTTP request.
+
+For example, we may use a factory to build a course metadata object:
+
+`const courseMetadata = Factory.build('courseMetadata');`
+
+Then we'd pass that `courseMetadata` object into an axios mock call:
+
+`axiosMock.onGet('example.com').reply(200, courseMetadata);`
+
+This way, when a component sends a GET request to `example.com` within the test's lifecycle, the request will be intercepted
+by the axios-mock-adapter, and the courseMetadata object will be returned.
+
+These factories should live within the data directories they intend to mock
+```
+courseware
+  | data
+      | __factories__
+          | courseMetadata.factory.js /* used to define the Rosie factory */
+      | api.js /* getCourseMetadata() lives here */
+```
+
+## What to Test
+We have not found exhaustive unit testing of frontend code to be worth the trouble.
+Rather, let's focus on testing non-obvious behavior.
+
+In essence: `test behavior that wouldn't present itself to a developer playing around`.
+
+Practically speaking, this means error states, interactive components, corner cases,
+or anything that wouldn't come up in a demo course. Something a developer wouldn't
+notice in the normal course of working in devstack.
+
+## Snapshots
+In practice, we've found snapshots of component trees to be too brittle to be worth it,
+as refactors occur or external libraries change.
+
+They can still be useful for data (like redux tests) or tiny isolated components.
+
+But please avoid for any "interesting" component. Prefer inspecting the explicit behavior
+under test, rather than just snapshotting the entire component tree.

docs/decisions/0008-liberal-courseware-path-handling.md

@@ -0,0 +1,90 @@
+# Liberal courseware path handling
+
+## Status
+
+Accepted
+
+_This updates some of the content in [ADR #2: Courseware page decisions](./0002-courseware-page-decisions.md)._
+
+## Context
+
+The courseware container currently accepts three path forms:
+
+1. `/course/:courseId`
+2. `/course/:courseId/:sequenceId`
+3. `/course/:courseId/:sequenceId/:unitId`
+
+Forms #1 and #2 are always redirected to Form #3 via simple set of rules:
+
+* If the sequenceId is not specified, choose the first sequence in the course.
+* If the unitId is not specified, choose the active unit in the sequence,
+  or the first unit if none are active.
+
+Thus, Form #3 is effectively the canonoical path;
+all Learning MFE units should be served from it.
+We acknowledge that the best user experience is to link directly to the canonoical
+path when possible, since it skips the redirection steps.
+Still, there are times when it is necessary or prudent to link just to a course or
+a sequence.
+
+Through recent work in the LMS, we are realizing that there are _also_ times where it
+would be simpler or more performant to link a user to an
+_entire section without specifying a squence_ or to a
+_unit without including the sequence_.
+Specifically, this capability would let as avoid further modulestore or
+block transformer queries in order to discern the course structure when trying to
+direct a learner to a section or unit.
+Futhermore, we hypothesize that being able to build a Learning MFE courseware link
+with just a unit ID or a section ID will be a nice simplifying quality for future
+development or debugging.
+
+## Decision
+
+The courseware container will accept five total path forms:
+
+1. `/course/:courseId`
+2. `/course/:courseId/:sectionId`
+3. `/course/:courseId/:sectionId/:unitId`
+4. `/course/:courseId/:sequenceId`
+5. `/course/:courseId/:unitId`
+6. `/course/:courseId/:sequenceId/:unitId`
+
+The redirection rules are as follows:
+
+* Forms #1 redirects to Form #4 by selecting the first sequence in the course.
+* Form #2 redirects to Form #4 by selecting to the first sequence in the section.
+* Form #3 redirects to Form #5 by dropping the section ID.
+* Form #4 redirects to Form #6 by choosing the active unit in the sequence
+  (or the first unit, if none are active).
+* Form #5 redirects to Form #6 by filling in the ID of the sequence that the
+  specified unit belongs to (in the edge case where the unit belongs to multiple
+  sequences, the first sequence is selected).
+
+As before, Form #5 is the canonocial courseware path, which is always redirected to
+by any of the other courseware path forms.
+
+## Consequences
+
+The above decision is implemented.
+
+## Further work
+
+At some point, we may decide to further extend the URL scheme to be
+more human-readable.
+
+We can't make UsageKeys themselves more readable because they're tied to student state,
+but we could introduce a new optional `slug` field on Sequences,
+which would be captured and propagated to the learning_sequences API.
+We could eventually do something similar to Units, since those slugs only have to be sequence-local.
+
+So eventually, URLs could look less like:
+
+```
+
+https://learning.edx.org/course/course-v1:edX+DemoX.1+2T2019/block-v1:edX+DemoX.1+2T2019+type@sequential+block@e0a61b3d5a2046949e76d12cac5df493/block-v1:edX+DemoX.1+2T2019+type@vertical+block@52dbad5a28e140f291a476f92ce11996
+```
+
+And more like:
+```
+https://learning.edx.org/course/course-v1:edX+DemoX.1+2T2019/Being_Social/Teams
+```

docs/decisions/0009-courseware-api-direction.md

@@ -0,0 +1,62 @@
+# Direction of Courseware APIs
+
+In order to allow for greater flexibility and separation of concerns, we're going to stop using the Course Blocks API for navigational data, and pull that data from the Learning Sequences Outlines API instead. The intention is to give us four distinct layers of courseware that can eventually be composed in different ways:
+
+* Learning Context Metadata
+* Learning Context Navigation
+* Sequence Navigation
+* Unit Rendering
+
+Note that "Learning Context" is a generalization of "Course" that includes other things like Content Libraries, Learning Pathways, and potentially other logical groupings of content.
+
+This is a refinement of [0002-courseware-page-decisions.md](0002-courseware-page-decisions.md). The fundamental layers remain the same, but this document tries to better clarify the boundaries and path forward for these layers. We're not making these layers completely swappable/pluggable now, but we should separate the data access in a way that allows for that in the future.
+
+## Background
+
+We currently make four primary requests to the LMS when rendering courseware instructional content:
+
+1. Course Metadata: `/api/courseware/course/{courseId}` (REST API)
+2. Course Blocks API: `/api/courses/v2/blocks/?course_id={courseId}` (REST API)
+3. Sequence Metadata: `/api/courseware/sequence/{sequenceUsageKey}` (REST API)
+4. Unit: `/xblock/{unitBlockUsageKey}` (rendered in an iframe)
+
+There is a significant amount of overlap between the Course Blocks API and the others at the moment, since Course Blocks takes a static snapshot of the entire tree of course content at once. There are a few problems with the current arrangement:
+
+* It's slow and complex. The Course Blocks API can be difficult to maintain and reason about, and trickier to optimize.
+* Assuming that all course structures are the same makes it difficult to support other content types, like LabXchange Learning Pathways or adaptive content.
+* The overlap between Course Blocks and the other APIs means that there can be conflicts about the state.
+
+## Motivating Vision
+
+We have seen a desire to extend or enhance the courseware experience in various ways:
+
+Learning Context Navigation
+* Allowing for shorter, human-readable URLs in courseware.
+* Smaller courses that do not need the current navigational hierarchy.
+* LabXchange pathways.
+
+Sequence Navigation
+* Adaptive content, where the full list of units is not known up front.
+* More limited navigation, where content is pushed linearly, without the ability to jump ahead.
+* Different layouts for content browsing.
+
+Unit Rendering
+* Use of QTI content (currently serviced by cc2olx conversion).
+* Desire to experiment with a next-gen version of XBlock.
+* Use of entirely LTI units.
+
+The idea would be to insulate each layer from the layers above and below it. Sequence rendering shouldn't be affected by whether or not it's in a two level hierarchy (Course → Section → Sequence), or a flat one (Course → Sequence). Learning Context Navigation should be able to reference Sequences without caring if a Sequence is an adaptive one or not. Sequences should be able to have a common interface to call Unit iframes, whether those Units are rendering XBlocks or QTI content.
+
+Note that supporting these types of course structures would require downstream changes in other systems as well (e.g. analytics).
+
+## Next Step: Removing use of the Course Blocks API.
+
+The next step in this process is to remove the call to the Course Blocks API, and split its responsibilities across just the existing Learning Sequences Outline and Sequence Metadata APIs. This will involve at least a couple of steps.
+
+### Complete rollout of Learning Sequences Outline calls.
+
+We're currently in a transitional state between these APIs where the Learning Sequences Outline calls are only rolled out on a small handful of courses.
+
+### Shift Sequence and Unit metadata to only come from Sequence Metadata API.
+
+We currently pull this information from both Course Blocks and the Sequence Metadata API. We can consolidate on just the Sequence Metadata API. There is also server side optimization that can be done with the Sequence Metadata API calls as part of this work.

example.env.config.jsx

@@ -0,0 +1,24 @@
+import UnitTranslationPlugin from '@plugins/UnitTranslationPlugin';
+import { PLUGIN_OPERATIONS, DIRECT_PLUGIN } from '@openedx/frontend-plugin-framework';
+
+// Load environment variables from .env file
+const config = {
+  ...process.env,
+  pluginSlots: {
+    unit_title_plugin: {
+      plugins: [
+        {
+          op: PLUGIN_OPERATIONS.Insert,
+          widget: {
+            id: 'unit_title_plugin',
+            type: DIRECT_PLUGIN,
+            priority: 1,
+            RenderWidget: UnitTranslationPlugin,
+          },
+        },
+      ],
+    },
+  },
+};
+
+export default config;

global-setup.js

@@ -0,0 +1,4 @@
+// Force all tests to run in UTC to prevent tests from being sensitive to host timezone.
+module.exports = async () => {
+  process.env.TZ = 'UTC';
+};

jest.config.js

@@ -1,11 +1,44 @@
-const { createConfig } = require('@edx/frontend-build');
+const { createConfig } = require('@openedx/frontend-build');
 
-module.exports = createConfig('jest', {
-  setupFiles: [
+const config = createConfig('jest', {
+  setupFilesAfterEnv: [
     '<rootDir>/src/setupTest.js',
   ],
   coveragePathIgnorePatterns: [
     'src/setupTest.js',
     'src/i18n',
+    'src/.*\\.exp\\..*',
   ],
+  // see https://github.com/axios/axios/issues/5026
+  moduleNameMapper: {
+    "^axios$": "axios/dist/axios.js",
+    // See https://stackoverflow.com/questions/72382316/jest-encountered-an-unexpected-token-react-markdown
+    'react-markdown': '<rootDir>/node_modules/react-markdown/react-markdown.min.js',
+    '@src/(.*)': '<rootDir>/src/$1',
+    '@plugins/(.*)': '<rootDir>/plugins/$1',
+  },
+  testTimeout: 30000,
+  globalSetup: "./global-setup.js",
+  verbose: true,
+  testEnvironment: 'jsdom',
 });
+
+// delete config.testURL;
+
+config.reporters = [...(config.reporters || []), ["jest-console-group-reporter", {
+  // change this setting if need to see less details for each test
+  // reportType: "summary" | "details", 
+  // enable: true | false,
+  afterEachTest: {
+    enable: true,
+    filePaths: false,
+    reportType: "details",
+  },
+  afterAllTests: {
+    reportType: "summary",
+    enable: true,
+    filePaths: true,
+  },
+}]];
+
+module.exports = config;

openedx.yaml

@@ -3,3 +3,8 @@
 
 oeps: {}
 owner: edx/platform-core-tnl
+openedx-release:
+  # The openedx-release key is described in OEP-10:
+  #   https://open-edx-proposals.readthedocs.io/en/latest/oep-0010-proc-openedx-releases.html
+  # The FAQ might also be helpful: https://openedx.atlassian.net/wiki/spaces/COMM/pages/1331268879/Open+edX+Release+FAQ
+  ref: master

package.json

@@ -4,64 +4,93 @@
   "description": "Frontend learning application.",
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/edx/frontend-app-learning.git"
+    "url": "git+https://github.com/openedx/frontend-app-learning.git"
   },
   "browserslist": [
-    "last 2 versions",
-    "ie 11"
+    "extends @edx/browserslist-config"
   ],
   "scripts": {
     "build": "fedx-scripts webpack",
-    "i18n_extract": "BABEL_ENV=i18n fedx-scripts babel src --quiet > /dev/null",
-    "is-es5": "es-check es5 ./dist/*.js",
+    "i18n_extract": "fedx-scripts formatjs extract",
     "lint": "fedx-scripts eslint --ext .js --ext .jsx .",
+    "lint:fix": "fedx-scripts eslint --fix --ext .js --ext .jsx .",
+    "prepare": "husky install",
     "snapshot": "fedx-scripts jest --updateSnapshot",
     "start": "fedx-scripts webpack-dev-server --progress",
     "test": "fedx-scripts jest --coverage --passWithNoTests"
   },
-  "husky": {
-    "hooks": {
-      "pre-commit": "npm run lint"
-    }
-  },
   "author": "edX",
   "license": "AGPL-3.0",
-  "homepage": "https://github.com/edx/frontend-app-learning#readme",
+  "homepage": "https://github.com/openedx/frontend-app-learning#readme",
   "publishConfig": {
     "access": "public"
   },
   "bugs": {
-    "url": "https://github.com/edx/frontend-app-learning/issues"
+    "url": "https://github.com/openedx/frontend-app-learning/issues"
   },
   "dependencies": {
-    "@edx/frontend-component-footer": "^10.0.6",
-    "@edx/frontend-component-header": "^2.0.3",
-    "@edx/frontend-platform": "^1.3.1",
-    "@edx/paragon": "^7.2.1",
-    "@fortawesome/fontawesome-svg-core": "^1.2.26",
-    "@fortawesome/free-brands-svg-icons": "^5.12.0",
-    "@fortawesome/free-regular-svg-icons": "^5.12.0",
-    "@fortawesome/free-solid-svg-icons": "^5.12.0",
-    "@fortawesome/react-fontawesome": "^0.1.8",
-    "@reduxjs/toolkit": "^1.2.3",
-    "classnames": "^2.2.6",
-    "core-js": "^3.6.2",
-    "prop-types": "^15.7.2",
-    "react": "^16.12.0",
-    "react-dom": "^16.12.0",
-    "react-redux": "^7.1.3",
-    "react-router": "^5.1.2",
-    "react-router-dom": "^5.1.2",
-    "redux": "^4.0.5",
-    "regenerator-runtime": "^0.13.3"
+    "@datadog/browser-logs": "^5.14.0",
+    "@datadog/browser-rum": "^5.14.0",
+    "@edx/brand": "npm:@openedx/brand-openedx@^1.2.2",
+    "@edx/frontend-component-footer": "^13.0.4",
+    "@edx/frontend-component-header": "^5.0.2",
+    "@edx/frontend-lib-learning-assistant": "^2.0.0",
+    "@edx/frontend-lib-special-exams": "^3.0.0",
+    "@edx/frontend-platform": "^7.1.2",
+    "@edx/openedx-atlas": "^0.6.0",
+    "@edx/react-unit-test-utils": "^2.0.0",
+    "@fortawesome/fontawesome-svg-core": "1.3.0",
+    "@fortawesome/free-brands-svg-icons": "5.15.4",
+    "@fortawesome/free-regular-svg-icons": "5.15.4",
+    "@fortawesome/free-solid-svg-icons": "5.15.4",
+    "@fortawesome/react-fontawesome": "^0.1.4",
+    "@openedx/frontend-plugin-framework": "^1.0.2",
+    "@openedx/paragon": "^22.1.1",
+    "@popperjs/core": "2.11.8",
+    "@reduxjs/toolkit": "1.8.1",
+    "classnames": "2.3.2",
+    "core-js": "3.22.2",
+    "history": "5.3.0",
+    "joi": "^17.11.0",
+    "js-cookie": "3.0.5",
+    "lodash.camelcase": "4.3.0",
+    "prop-types": "15.8.1",
+    "query-string": "^7.1.3",
+    "react": "17.0.2",
+    "react-dom": "17.0.2",
+    "react-helmet": "6.1.0",
+    "react-redux": "7.2.9",
+    "react-router": "6.15.0",
+    "react-router-dom": "6.15.0",
+    "react-share": "4.4.1",
+    "redux": "4.1.2",
+    "regenerator-runtime": "0.13.11",
+    "reselect": "4.1.8",
+    "truncate-html": "1.0.4",
+    "util": "0.12.5"
   },
   "devDependencies": {
-    "@edx/frontend-build": "^3.0.0",
-    "codecov": "^3.6.1",
-    "es-check": "^5.1.0",
-    "glob": "^7.1.6",
-    "husky": "^3.1.0",
-    "jest": "^24.9.0",
-    "reactifex": "^1.1.1"
+    "@edx/browserslist-config": "1.2.0",
+    "@edx/reactifex": "2.2.0",
+    "@openedx/frontend-build": "13.0.30",
+    "@pact-foundation/pact": "^11.0.2",
+    "@testing-library/jest-dom": "5.16.5",
+    "@testing-library/react": "12.1.5",
+    "@testing-library/react-hooks": "^8.0.1",
+    "@testing-library/user-event": "13.5.0",
+    "axios-mock-adapter": "1.20.0",
+    "copy-webpack-plugin": "^11.0.0",
+    "es-check": "6.2.1",
+    "eslint-import-resolver-webpack": "^0.13.8",
+    "husky": "7.0.4",
+    "jest": "^26.6.3",
+    "jest-console-group-reporter": "^1.0.1",
+    "jest-when": "^3.6.0",
+    "postcss-loader": "^8.1.1",
+    "rosie": "2.1.1",
+    "sass": "^1.72.0",
+    "sass-loader": "^14.1.1",
+    "source-map-loader": "^5.0.0",
+    "style-loader": "^3.3.4"
   }
 }

plugins/README.md

@@ -0,0 +1,17 @@
+## How to develop plugin
+
+You can define plugin in `env.config.jsx` see `example.env.config.jsx` as example.
+
+## Current caveat
+
+- The way for how I deal with override method is still wonky
+  - The redux still require middleware to ignore the plugin's action from serializing
+  - I am not sure how it behave with useCallback, useMemo, ...etc
+  - There are still open question on how to write it properly
+
+## Current work that should consider core part and extendable for the future plugin framework
+
+- `usePluingsCallback` is the callback supose to be some level of equality to be using `React.useCallback`. It would try to execute the function, then any plugin that try `registerOverrideMethod`. The order of the it being run isn't the determined. There are a couple things I want to add:
+  - I might consider testing it with `zustand` library to make sure it is portable and not rely on `redux`. I tried to do this with provider, but it seems to run into infinite loop of trigger changed.
+
+- `registerOverrideMethod` is working like a way to register callback that behave like a middleware. It ran the default one, then pass the result of the default one to the plugin. Any plugin that register the override can update the value. Alternatively, we can override the function completely instead applying each affect. Or we can support both. But it requires a bit more thought out architecture.

plugins/UnitTranslationPlugin/__snapshots__/index.test.jsx.snap

@@ -0,0 +1,15 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`<UnitTranslationPlugin /> render TranslationSelection when translation is enabled and language is available 1`] = `
+<TranslationSelection
+  availableLanguages={
+    Array [
+      "en",
+    ]
+  }
+  courseId="courseId"
+  id="id"
+  language="en"
+  unitId="unitId"
+/>
+`;

plugins/UnitTranslationPlugin/data/api.js

@@ -0,0 +1,90 @@
+import { getConfig, camelCaseObject } from '@edx/frontend-platform';
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+import { logError } from '@edx/frontend-platform/logging';
+import { stringify } from 'query-string';
+
+export const fetchTranslationConfig = async (courseId) => {
+  const url = `${
+    getConfig().LMS_BASE_URL
+  }/api/translatable_xblocks/config/?course_id=${encodeURIComponent(courseId)}`;
+  try {
+    const { data } = await getAuthenticatedHttpClient().get(url);
+    return {
+      enabled: data.feature_enabled,
+      availableLanguages: data.available_translation_languages || [
+        {
+          code: 'en',
+          label: 'English',
+        },
+        {
+          code: 'es',
+          label: 'Spanish',
+        },
+      ],
+    };
+  } catch (error) {
+    logError(`Translation plugin fail to fetch from ${url}`, error);
+    return {
+      enabled: false,
+      availableLanguages: [],
+    };
+  }
+};
+
+export async function getTranslationFeedback({
+  courseId,
+  translationLanguage,
+  unitId,
+  userId,
+}) {
+  const params = stringify({
+    translation_language: translationLanguage,
+    course_id: encodeURIComponent(courseId),
+    unit_id: encodeURIComponent(unitId),
+    user_id: userId,
+  });
+  const fetchFeedbackUrl = `${
+    getConfig().AI_TRANSLATIONS_URL
+  }/api/v1/whole-course-translation-feedback?${params}`;
+  try {
+    const { data } = await getAuthenticatedHttpClient().get(fetchFeedbackUrl);
+    return camelCaseObject(data);
+  } catch (error) {
+    logError(
+      `Translation plugin fail to fetch from ${fetchFeedbackUrl}`,
+      error,
+    );
+    return {};
+  }
+}
+
+export async function createTranslationFeedback({
+  courseId,
+  feedbackValue,
+  translationLanguage,
+  unitId,
+  userId,
+}) {
+  const createFeedbackUrl = `${
+    getConfig().AI_TRANSLATIONS_URL
+  }/api/v1/whole-course-translation-feedback/`;
+  try {
+    const { data } = await getAuthenticatedHttpClient().post(
+      createFeedbackUrl,
+      {
+        course_id: courseId,
+        feedback_value: feedbackValue,
+        translation_language: translationLanguage,
+        unit_id: unitId,
+        user_id: userId,
+      },
+    );
+    return camelCaseObject(data);
+  } catch (error) {
+    logError(
+      `Translation plugin fail to create feedback from ${createFeedbackUrl}`,
+      error,
+    );
+    return {};
+  }
+}

plugins/UnitTranslationPlugin/data/api.test.js

@@ -0,0 +1,125 @@
+import { camelCaseObject } from '@edx/frontend-platform';
+import { logError } from '@edx/frontend-platform/logging';
+import { stringify } from 'query-string';
+
+import {
+  fetchTranslationConfig,
+  getTranslationFeedback,
+  createTranslationFeedback,
+} from './api';
+
+const mockGetMethod = jest.fn();
+const mockPostMethod = jest.fn();
+jest.mock('@edx/frontend-platform/auth', () => ({
+  getAuthenticatedHttpClient: () => ({
+    get: mockGetMethod,
+    post: mockPostMethod,
+  }),
+}));
+jest.mock('@edx/frontend-platform/logging', () => ({
+  logError: jest.fn(),
+}));
+
+describe('UnitTranslation api', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+  describe('fetchTranslationConfig', () => {
+    const courseId = 'course-v1:edX+DemoX+Demo_Course';
+    const expectedResponse = {
+      feature_enabled: true,
+      available_translation_languages: [
+        {
+          code: 'en',
+          label: 'English',
+        },
+        {
+          code: 'es',
+          label: 'Spanish',
+        },
+      ],
+    };
+    it('should fetch translation config', async () => {
+      const expectedUrl = `http://localhost:18000/api/translatable_xblocks/config/?course_id=${encodeURIComponent(
+        courseId,
+      )}`;
+      mockGetMethod.mockResolvedValueOnce({ data: expectedResponse });
+      const result = await fetchTranslationConfig(courseId);
+      expect(result).toEqual({
+        enabled: true,
+        availableLanguages: expectedResponse.available_translation_languages,
+      });
+      expect(mockGetMethod).toHaveBeenCalledWith(expectedUrl);
+    });
+
+    it('should return disabled and unavailable languages on error', async () => {
+      mockGetMethod.mockRejectedValueOnce(new Error('error'));
+      const result = await fetchTranslationConfig(courseId);
+      expect(result).toEqual({
+        enabled: false,
+        availableLanguages: [],
+      });
+      expect(logError).toHaveBeenCalled();
+    });
+  });
+
+  describe('getTranslationFeedback', () => {
+    const props = {
+      courseId: 'course-v1:edX+DemoX+Demo_Course',
+      translationLanguage: 'es',
+      unitId: 'unit-v1:edX+DemoX+Demo_Course+type@video+block@video',
+      userId: 'test_user',
+    };
+    const expectedResponse = {
+      feedback: 'good',
+    };
+    it('should fetch translation feedback', async () => {
+      const params = stringify({
+        translation_language: props.translationLanguage,
+        course_id: encodeURIComponent(props.courseId),
+        unit_id: encodeURIComponent(props.unitId),
+        user_id: props.userId,
+      });
+      const expectedUrl = `http://localhost:18760/api/v1/whole-course-translation-feedback?${params}`;
+      mockGetMethod.mockResolvedValueOnce({ data: expectedResponse });
+      const result = await getTranslationFeedback(props);
+      expect(result).toEqual(camelCaseObject(expectedResponse));
+      expect(mockGetMethod).toHaveBeenCalledWith(expectedUrl);
+    });
+
+    it('should return empty object on error', async () => {
+      mockGetMethod.mockRejectedValueOnce(new Error('error'));
+      const result = await getTranslationFeedback(props);
+      expect(result).toEqual({});
+      expect(logError).toHaveBeenCalled();
+    });
+  });
+
+  describe('createTranslationFeedback', () => {
+    const props = {
+      courseId: 'course-v1:edX+DemoX+Demo_Course',
+      feedbackValue: 'good',
+      translationLanguage: 'es',
+      unitId: 'unit-v1:edX+DemoX+Demo_Course+type@video+block@video',
+      userId: 'test_user',
+    };
+    it('should create translation feedback', async () => {
+      const expectedUrl = 'http://localhost:18760/api/v1/whole-course-translation-feedback/';
+      mockPostMethod.mockResolvedValueOnce({});
+      await createTranslationFeedback(props);
+      expect(mockPostMethod).toHaveBeenCalledWith(expectedUrl, {
+        course_id: props.courseId,
+        feedback_value: props.feedbackValue,
+        translation_language: props.translationLanguage,
+        unit_id: props.unitId,
+        user_id: props.userId,
+      });
+    });
+
+    it('should log error on failure', async () => {
+      mockPostMethod.mockRejectedValueOnce(new Error('error'));
+      await createTranslationFeedback(props);
+      expect(logError).toHaveBeenCalled();
+    });
+  });
+});

plugins/UnitTranslationPlugin/feedback-widget/__snapshots__/index.test.jsx.snap

@@ -0,0 +1,204 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`<FeedbackWidget /> render feedback widget 1`] = `
+<div
+  className="d-none"
+>
+  <div
+    className="sequence w-100"
+  >
+    <div
+      className="ml-4 mr-2"
+    >
+      <ActionRow>
+        Rate this page translation
+        <Spacer />
+        <div>
+          <IconButton
+            alt="positive-feedback"
+            className="m-1"
+            iconAs="Icon"
+            id="positive-feedback-button"
+            onClick={[MockFunction onThumbsUpClick]}
+            src="ThumbUpOutline"
+            variant="secondary"
+          />
+          <IconButton
+            alt="negative-feedback"
+            className="mr-2"
+            iconAs="Icon"
+            id="negative-feedback-button"
+            onClick={[MockFunction onThumbsDownClick]}
+            src="ThumbDownOffAlt"
+            variant="secondary"
+          />
+        </div>
+        <div
+          className="mb-1 text-light action-row-divider"
+        >
+          |
+        </div>
+        <div>
+          <IconButton
+            alt="close-feedback"
+            className="ml-1 mr-2 float-right"
+            iconAs="Icon"
+            id="close-feedback-button"
+            onClick={[MockFunction closeFeedbackWidget]}
+            src="Close"
+            variant="secondary"
+          />
+        </div>
+      </ActionRow>
+    </div>
+  </div>
+</div>
+`;
+
+exports[`<FeedbackWidget /> render gratitude text 1`] = `
+<div
+  className="d-none"
+>
+  <div
+    className="sequence w-100"
+  >
+    <div
+      className="ml-4 mr-4"
+    >
+      <ActionRow
+        className="m-2 justify-content-center"
+      >
+        Thank you! Your feedback matters.
+      </ActionRow>
+    </div>
+  </div>
+</div>
+`;
+
+exports[`<FeedbackWidget /> renders hidden by default 1`] = `
+<div
+  className="d-none"
+>
+  <div
+    className="sequence w-100"
+  >
+    <div
+      className="ml-4 mr-2"
+    >
+      <ActionRow>
+        Rate this page translation
+        <Spacer />
+        <div>
+          <IconButton
+            alt="positive-feedback"
+            className="m-1"
+            iconAs="Icon"
+            id="positive-feedback-button"
+            onClick={[MockFunction onThumbsUpClick]}
+            src="ThumbUpOutline"
+            variant="secondary"
+          />
+          <IconButton
+            alt="negative-feedback"
+            className="mr-2"
+            iconAs="Icon"
+            id="negative-feedback-button"
+            onClick={[MockFunction onThumbsDownClick]}
+            src="ThumbDownOffAlt"
+            variant="secondary"
+          />
+        </div>
+        <div
+          className="mb-1 text-light action-row-divider"
+        >
+          |
+        </div>
+        <div>
+          <IconButton
+            alt="close-feedback"
+            className="ml-1 mr-2 float-right"
+            iconAs="Icon"
+            id="close-feedback-button"
+            onClick={[MockFunction closeFeedbackWidget]}
+            src="Close"
+            variant="secondary"
+          />
+        </div>
+      </ActionRow>
+    </div>
+    <div
+      className="ml-4 mr-4"
+    >
+      <ActionRow
+        className="m-2 justify-content-center"
+      >
+        Thank you! Your feedback matters.
+      </ActionRow>
+    </div>
+  </div>
+</div>
+`;
+
+exports[`<FeedbackWidget /> renders show when elemReady is true 1`] = `
+<div
+  className="sequence-container d-inline-flex flex-row w-100"
+>
+  <div
+    className="sequence w-100"
+  >
+    <div
+      className="ml-4 mr-2"
+    >
+      <ActionRow>
+        Rate this page translation
+        <Spacer />
+        <div>
+          <IconButton
+            alt="positive-feedback"
+            className="m-1"
+            iconAs="Icon"
+            id="positive-feedback-button"
+            onClick={[MockFunction onThumbsUpClick]}
+            src="ThumbUpOutline"
+            variant="secondary"
+          />
+          <IconButton
+            alt="negative-feedback"
+            className="mr-2"
+            iconAs="Icon"
+            id="negative-feedback-button"
+            onClick={[MockFunction onThumbsDownClick]}
+            src="ThumbDownOffAlt"
+            variant="secondary"
+          />
+        </div>
+        <div
+          className="mb-1 text-light action-row-divider"
+        >
+          |
+        </div>
+        <div>
+          <IconButton
+            alt="close-feedback"
+            className="ml-1 mr-2 float-right"
+            iconAs="Icon"
+            id="close-feedback-button"
+            onClick={[MockFunction closeFeedbackWidget]}
+            src="Close"
+            variant="secondary"
+          />
+        </div>
+      </ActionRow>
+    </div>
+    <div
+      className="ml-4 mr-4"
+    >
+      <ActionRow
+        className="m-2 justify-content-center"
+      >
+        Thank you! Your feedback matters.
+      </ActionRow>
+    </div>
+  </div>
+</div>
+`;

plugins/UnitTranslationPlugin/feedback-widget/index.jsx

@@ -0,0 +1,116 @@
+import React, {
+  useEffect, useRef, useState,
+} from 'react';
+import PropTypes from 'prop-types';
+
+import { useIntl } from '@edx/frontend-platform/i18n';
+import { ActionRow, IconButton, Icon } from '@openedx/paragon';
+import { Close, ThumbUpOutline, ThumbDownOffAlt } from '@openedx/paragon/icons';
+
+import './index.scss';
+import messages from './messages';
+import useFeedbackWidget from './useFeedbackWidget';
+
+const FeedbackWidget = ({
+  courseId,
+  translationLanguage,
+  unitId,
+  userId,
+}) => {
+  const { formatMessage } = useIntl();
+  const ref = useRef(null);
+  const [elemReady, setElemReady] = useState(false);
+  const {
+    closeFeedbackWidget,
+    showFeedbackWidget,
+    showGratitudeText,
+    onThumbsUpClick,
+    onThumbsDownClick,
+  } = useFeedbackWidget({
+    courseId,
+    translationLanguage,
+    unitId,
+    userId,
+  });
+
+  useEffect(() => {
+    if (ref.current) {
+      const domNode = document.getElementById('whole-course-translation-feedback-widget');
+      domNode.appendChild(ref.current);
+      setElemReady(true);
+    }
+  }, [ref.current]);
+
+  return (
+    <div ref={ref} className={(elemReady) ? 'sequence-container d-inline-flex flex-row w-100' : 'd-none'}>
+      {(showFeedbackWidget || showGratitudeText) ? (
+        <div className="sequence w-100">
+          {
+            showFeedbackWidget && (
+              <div className="ml-4 mr-2">
+                <ActionRow>
+                  {formatMessage(messages.rateTranslationText)}
+                  <ActionRow.Spacer />
+                  <div>
+                    <IconButton
+                      src={ThumbUpOutline}
+                      iconAs={Icon}
+                      alt="positive-feedback"
+                      onClick={onThumbsUpClick}
+                      variant="secondary"
+                      className="m-1"
+                      id="positive-feedback-button"
+                    />
+                    <IconButton
+                      src={ThumbDownOffAlt}
+                      iconAs={Icon}
+                      alt="negative-feedback"
+                      onClick={onThumbsDownClick}
+                      variant="secondary"
+                      className="mr-2"
+                      id="negative-feedback-button"
+                    />
+                  </div>
+                  <div className="mb-1 text-light action-row-divider">
+                    |
+                  </div>
+                  <div>
+                    <IconButton
+                      src={Close}
+                      iconAs={Icon}
+                      alt="close-feedback"
+                      onClick={closeFeedbackWidget}
+                      variant="secondary"
+                      className="ml-1 mr-2 float-right"
+                      id="close-feedback-button"
+                    />
+                  </div>
+                </ActionRow>
+              </div>
+            )
+          }
+          {
+            showGratitudeText && (
+              <div className="ml-4 mr-4">
+                <ActionRow className="m-2 justify-content-center">
+                  {formatMessage(messages.gratitudeText)}
+                </ActionRow>
+              </div>
+            )
+          }
+        </div>
+      ) : null}
+    </div>
+  );
+};
+
+FeedbackWidget.propTypes = {
+  courseId: PropTypes.string.isRequired,
+  translationLanguage: PropTypes.string.isRequired,
+  userId: PropTypes.string.isRequired,
+  unitId: PropTypes.string.isRequired,
+};
+
+FeedbackWidget.defaultProps = {};
+
+export default FeedbackWidget;

plugins/UnitTranslationPlugin/feedback-widget/index.scss

@@ -0,0 +1,4 @@
+.action-row-divider {
+    font-size: 31px;
+    font-weight: 100;
+}

plugins/UnitTranslationPlugin/feedback-widget/index.test.jsx

@@ -0,0 +1,107 @@
+import { useState } from 'react';
+import { shallow } from '@edx/react-unit-test-utils';
+
+import FeedbackWidget from './index';
+import useFeedbackWidget from './useFeedbackWidget';
+
+jest.mock('react', () => ({
+  ...jest.requireActual('react'),
+  useState: jest.fn((value) => [value, jest.fn()]),
+}));
+jest.mock('@openedx/paragon', () => jest.requireActual('@edx/react-unit-test-utils').mockComponents({
+  ActionRow: {
+    Spacer: 'Spacer',
+  },
+  IconButton: 'IconButton',
+  Icon: 'Icon',
+}));
+jest.mock('@openedx/paragon/icons', () => ({
+  Close: 'Close',
+  ThumbUpOutline: 'ThumbUpOutline',
+  ThumbDownOffAlt: 'ThumbDownOffAlt',
+}));
+jest.mock('./useFeedbackWidget');
+jest.mock('@edx/frontend-platform/i18n', () => {
+  const i18n = jest.requireActual('@edx/frontend-platform/i18n');
+  const { formatMessage } = jest.requireActual('@edx/react-unit-test-utils');
+  return {
+    ...i18n,
+    useIntl: jest.fn(() => ({
+      formatMessage,
+    })),
+  };
+});
+
+describe('<FeedbackWidget />', () => {
+  const props = {
+    courseId: 'course-v1:edX+DemoX+Demo_Course',
+    translationLanguage: 'es',
+    unitId:
+      'block-v1:edX+DemoX+Demo_Course+type@vertical+block@37b72b3915204b70acb00c55b604b563',
+    userId: '123',
+  };
+
+  const mockUseFeedbackWidget = ({ showFeedbackWidget, showGratitudeText }) => {
+    useFeedbackWidget.mockReturnValueOnce({
+      closeFeedbackWidget: jest.fn().mockName('closeFeedbackWidget'),
+      sendFeedback: jest.fn().mockName('sendFeedback'),
+      onThumbsUpClick: jest.fn().mockName('onThumbsUpClick'),
+      onThumbsDownClick: jest.fn().mockName('onThumbsDownClick'),
+      showFeedbackWidget,
+      showGratitudeText,
+    });
+  };
+
+  it('renders hidden by default', () => {
+    mockUseFeedbackWidget({
+      showFeedbackWidget: true,
+      showGratitudeText: true,
+    });
+    const wrapper = shallow(<FeedbackWidget {...props} />);
+    expect(wrapper.snapshot).toMatchSnapshot();
+    expect(wrapper.instance.findByType('div')[0].props.className).toContain(
+      'd-none',
+    );
+  });
+
+  it('renders show when elemReady is true', () => {
+    mockUseFeedbackWidget({
+      showFeedbackWidget: true,
+      showGratitudeText: true,
+    });
+    useState.mockReturnValueOnce([true, jest.fn()]);
+    const wrapper = shallow(<FeedbackWidget {...props} />);
+    expect(wrapper.snapshot).toMatchSnapshot();
+    expect(wrapper.instance.findByType('div')[0].props.className).not.toContain(
+      'd-none',
+    );
+  });
+
+  it('render empty when showFeedbackWidget and showGratitudeText are false', () => {
+    mockUseFeedbackWidget({
+      showFeedbackWidget: false,
+      showGratitudeText: false,
+    });
+    useState.mockReturnValueOnce([true, jest.fn()]);
+    const wrapper = shallow(<FeedbackWidget {...props} />);
+    expect(wrapper.instance.findByType('div')[0].children.length).toBe(0);
+  });
+
+  it('render feedback widget', () => {
+    mockUseFeedbackWidget({
+      showFeedbackWidget: true,
+      showGratitudeText: false,
+    });
+    const wrapper = shallow(<FeedbackWidget {...props} />);
+    expect(wrapper.snapshot).toMatchSnapshot();
+  });
+
+  it('render gratitude text', () => {
+    mockUseFeedbackWidget({
+      showFeedbackWidget: false,
+      showGratitudeText: true,
+    });
+    const wrapper = shallow(<FeedbackWidget {...props} />);
+    expect(wrapper.snapshot).toMatchSnapshot();
+  });
+});

plugins/UnitTranslationPlugin/feedback-widget/messages.js

@@ -0,0 +1,16 @@
+import { defineMessages } from '@edx/frontend-platform/i18n';
+
+const messages = defineMessages({
+  rateTranslationText: {
+    id: 'feedbackWidget.rateTranslationText',
+    defaultMessage: 'Rate this page translation',
+    description: 'Title for the feedback widget action row.',
+  },
+  gratitudeText: {
+    id: 'feedbackWidget.gratitudeText',
+    defaultMessage: 'Thank you! Your feedback matters.',
+    description: 'Title for secondary action row.',
+  },
+});
+
+export default messages;

plugins/UnitTranslationPlugin/feedback-widget/useFeedbackWidget.js

@@ -0,0 +1,82 @@
+import { useCallback, useEffect, useState } from 'react';
+
+import { createTranslationFeedback, getTranslationFeedback } from '../data/api';
+
+const useFeedbackWidget = ({
+  courseId,
+  translationLanguage,
+  unitId,
+  userId,
+}) => {
+  const [showFeedbackWidget, setShowFeedbackWidget] = useState(false);
+  const [showGratitudeText, setShowGratitudeText] = useState(false);
+
+  const closeFeedbackWidget = useCallback(() => {
+    setShowFeedbackWidget(false);
+  }, [setShowFeedbackWidget]);
+
+  const openFeedbackWidget = useCallback(() => {
+    setShowFeedbackWidget(true);
+  }, [setShowFeedbackWidget]);
+
+  useEffect(async () => {
+    const translationFeedback = await getTranslationFeedback({
+      courseId,
+      translationLanguage,
+      unitId,
+      userId,
+    });
+    setShowFeedbackWidget(!translationFeedback);
+  }, [
+    courseId,
+    translationLanguage,
+    unitId,
+    userId,
+  ]);
+
+  const openGratitudeText = useCallback(() => {
+    setShowGratitudeText(true);
+    setTimeout(() => {
+      setShowGratitudeText(false);
+    }, 3000);
+  }, [setShowGratitudeText]);
+
+  const sendFeedback = useCallback(async (feedbackValue) => {
+    await createTranslationFeedback({
+      courseId,
+      feedbackValue,
+      translationLanguage,
+      unitId,
+      userId,
+    });
+    closeFeedbackWidget();
+    openGratitudeText();
+  }, [
+    courseId,
+    translationLanguage,
+    unitId,
+    userId,
+    closeFeedbackWidget,
+    openGratitudeText,
+  ]);
+
+  const onThumbsUpClick = useCallback(() => {
+    sendFeedback(true);
+  }, [sendFeedback]);
+  const onThumbsDownClick = useCallback(() => {
+    sendFeedback(false);
+  }, [sendFeedback]);
+
+  return {
+    closeFeedbackWidget,
+    openFeedbackWidget,
+    openGratitudeText,
+    sendFeedback,
+    showFeedbackWidget,
+    showGratitudeText,
+    onThumbsUpClick,
+    onThumbsDownClick,
+  };
+};
+
+export default useFeedbackWidget;

plugins/UnitTranslationPlugin/feedback-widget/useFeedbackWidget.test.js

@@ -0,0 +1,163 @@
+import { renderHook, act } from '@testing-library/react-hooks';
+
+import useFeedbackWidget from './useFeedbackWidget';
+import { createTranslationFeedback, getTranslationFeedback } from '../data/api';
+
+jest.mock('../data/api', () => ({
+  createTranslationFeedback: jest.fn(),
+  getTranslationFeedback: jest.fn(),
+}));
+
+const initialProps = {
+  courseId: 'course-v1:edX+DemoX+Demo_Course',
+  translationLanguage: 'es',
+  unitId: 'block-v1:edX+DemoX+Demo_Course+type@vertical+block@vertical_0270f6de40fc',
+  userId: 3,
+};
+
+const newProps = {
+  courseId: 'course-v1:edX+DemoX+Demo_Course',
+  translationLanguage: 'fr',
+  unitId: 'block-v1:edX+DemoX+Demo_Course+type@vertical+block@vertical_0270f6de40fc',
+  userId: 3,
+};
+
+describe('useFeedbackWidget', () => {
+  beforeEach(async () => {
+    getTranslationFeedback.mockReturnValue('');
+  });
+
+  afterEach(() => {
+    jest.restoreAllMocks();
+  });
+
+  test('closeFeedbackWidget behavior', () => {
+    const { result, waitFor } = renderHook(() => useFeedbackWidget(initialProps));
+    waitFor(() => expect(result.current.showFeedbackWidget.toBe(true)));
+    act(() => {
+      result.current.closeFeedbackWidget();
+    });
+    expect(result.current.showFeedbackWidget).toBe(false);
+  });
+
+  test('openFeedbackWidget behavior', () => {
+    const { result } = renderHook(() => useFeedbackWidget(initialProps));
+    act(() => {
+      result.current.closeFeedbackWidget();
+    });
+    expect(result.current.showFeedbackWidget).toBe(false);
+    act(() => {
+      result.current.openFeedbackWidget();
+    });
+    expect(result.current.showFeedbackWidget).toBe(true);
+  });
+
+  test('openGratitudeText behavior', async () => {
+    const { result, waitFor } = renderHook(() => useFeedbackWidget(initialProps));
+
+    expect(result.current.showGratitudeText).toBe(false);
+    act(() => {
+      result.current.openGratitudeText();
+    });
+    expect(result.current.showGratitudeText).toBe(true);
+    // Wait for 3 seconds to hide the gratitude text
+    waitFor(() => {
+      expect(result.current.showGratitudeText).toBe(false);
+    }, { timeout: 3000 });
+  });
+
+  test('sendFeedback behavior', () => {
+    const { result, waitFor } = renderHook(() => useFeedbackWidget(initialProps));
+    const feedbackValue = true;
+
+    waitFor(() => expect(result.current.showFeedbackWidget.toBe(true)));
+
+    expect(result.current.showGratitudeText).toBe(false);
+    act(() => {
+      result.current.sendFeedback(feedbackValue);
+    });
+
+    waitFor(() => {
+      expect(result.current.showFeedbackWidget).toBe(false);
+      expect(result.current.showGratitudeText).toBe(true);
+    });
+
+    expect(createTranslationFeedback).toHaveBeenCalledWith({
+      courseId: initialProps.courseId,
+      feedbackValue,
+      translationLanguage: initialProps.translationLanguage,
+      unitId: initialProps.unitId,
+      userId: initialProps.userId,
+    });
+
+    // Wait for 3 seconds to hide the gratitude text
+    waitFor(() => {
+      expect(result.current.showGratitudeText).toBe(false);
+    }, { timeout: 3000 });
+  });
+
+  test('onThumbsUpClick behavior', () => {
+    const { result } = renderHook(() => useFeedbackWidget(initialProps));
+
+    act(() => {
+      result.current.onThumbsUpClick();
+    });
+
+    expect(createTranslationFeedback).toHaveBeenCalledWith({
+      courseId: initialProps.courseId,
+      feedbackValue: true,
+      translationLanguage: initialProps.translationLanguage,
+      unitId: initialProps.unitId,
+      userId: initialProps.userId,
+    });
+  });
+
+  test('onThumbsDownClick behavior', () => {
+    const { result } = renderHook(() => useFeedbackWidget(initialProps));
+
+    act(() => {
+      result.current.onThumbsDownClick();
+    });
+
+    expect(createTranslationFeedback).toHaveBeenCalledWith({
+      courseId: initialProps.courseId,
+      feedbackValue: false,
+      translationLanguage: initialProps.translationLanguage,
+      unitId: initialProps.unitId,
+      userId: initialProps.userId,
+    });
+  });
+
+  test('fetch feedback on initialization', () => {
+    const { waitFor } = renderHook(() => useFeedbackWidget(initialProps));
+    waitFor(() => {
+      expect(getTranslationFeedback).toHaveBeenCalledWith({
+        courseId: initialProps.courseId,
+        translationLanguage: initialProps.translationLanguage,
+        unitId: initialProps.unitId,
+        userId: initialProps.userId,
+      });
+    });
+  });
+
+  test('fetch feedback on props update', () => {
+    const { rerender, waitFor } = renderHook(() => useFeedbackWidget(initialProps));
+    waitFor(() => {
+      expect(getTranslationFeedback).toHaveBeenCalledWith({
+        courseId: initialProps.courseId,
+        translationLanguage: initialProps.translationLanguage,
+        unitId: initialProps.unitId,
+        userId: initialProps.userId,
+      });
+    });
+    rerender(newProps);
+    waitFor(() => {
+      expect(getTranslationFeedback).toHaveBeenCalledWith({
+        courseId: newProps.courseId,
+        translationLanguage: newProps.translationLanguage,
+        unitId: newProps.unitId,
+        userId: newProps.userId,
+      });
+    });
+  });
+});

plugins/UnitTranslationPlugin/index.jsx

@@ -0,0 +1,43 @@
+import React, { useEffect, useState } from 'react';
+import PropTypes from 'prop-types';
+
+import { useModel } from '@src/generic/model-store';
+
+import TranslationSelection from './translation-selection';
+import { fetchTranslationConfig } from './data/api';
+
+const UnitTranslationPlugin = ({ id, courseId, unitId }) => {
+  const { language } = useModel('coursewareMeta', courseId);
+  const [translationConfig, setTranslationConfig] = useState({
+    enabled: false,
+    availableLanguages: [],
+  });
+
+  useEffect(() => {
+    fetchTranslationConfig(courseId).then(setTranslationConfig);
+  }, []);
+
+  const { enabled, availableLanguages } = translationConfig;
+
+  if (!enabled || !language || !availableLanguages.length) {
+    return null;
+  }
+
+  return (
+    <TranslationSelection
+      id={id}
+      courseId={courseId}
+      language={language}
+      availableLanguages={availableLanguages}
+      unitId={unitId}
+    />
+  );
+};
+
+UnitTranslationPlugin.propTypes = {
+  id: PropTypes.string.isRequired,
+  courseId: PropTypes.string.isRequired,
+  unitId: PropTypes.string.isRequired,
+};
+
+export default UnitTranslationPlugin;

plugins/UnitTranslationPlugin/index.test.jsx

@@ -0,0 +1,62 @@
+import { shallow } from '@edx/react-unit-test-utils';
+import { useState } from 'react';
+import { useModel } from '@src/generic/model-store';
+
+import UnitTranslationPlugin from './index';
+
+jest.mock('@src/generic/model-store');
+jest.mock('./data/api', () => ({
+  fetchTranslationConfig: jest.fn(),
+}));
+jest.mock('./translation-selection', () => 'TranslationSelection');
+jest.mock('react', () => ({
+  ...jest.requireActual('react'),
+  useState: jest.fn(),
+}));
+
+describe('<UnitTranslationPlugin />', () => {
+  const props = {
+    id: 'id',
+    courseId: 'courseId',
+    unitId: 'unitId',
+  };
+  const mockInitialState = ({ enabled = true, availableLanguages = ['en'] }) => {
+    useState.mockReturnValue([{ enabled, availableLanguages }, jest.fn()]);
+  };
+  it('render empty when translation is not enabled', () => {
+    useModel.mockReturnValue({ language: 'en' });
+    mockInitialState({ enabled: false });
+
+    const wrapper = shallow(<UnitTranslationPlugin {...props} />);
+
+    expect(wrapper.isEmptyRender()).toBe(true);
+  });
+  it('render empty when available languages is empty', () => {
+    useModel.mockReturnValue({ language: 'fr' });
+    mockInitialState({
+      availableLanguages: [],
+    });
+
+    const wrapper = shallow(<UnitTranslationPlugin {...props} />);
+
+    expect(wrapper.isEmptyRender()).toBe(true);
+  });
+
+  it('render empty when course language has not been set', () => {
+    useModel.mockReturnValue({ language: undefined });
+    mockInitialState({});
+
+    const wrapper = shallow(<UnitTranslationPlugin {...props} />);
+
+    expect(wrapper.isEmptyRender()).toBe(true);
+  });
+
+  it('render TranslationSelection when translation is enabled and language is available', () => {
+    useModel.mockReturnValue({ language: 'en' });
+    mockInitialState({});
+
+    const wrapper = shallow(<UnitTranslationPlugin {...props} />);
+
+    expect(wrapper.snapshot).toMatchSnapshot();
+  });
+});

plugins/UnitTranslationPlugin/translation-selection/TranslationModal.jsx

@@ -0,0 +1,82 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+
+import { useIntl } from '@edx/frontend-platform/i18n';
+import {
+  StandardModal,
+  ActionRow,
+  Button,
+  Icon,
+  ListBox,
+  ListBoxOption,
+} from '@openedx/paragon';
+import { Check } from '@openedx/paragon/icons';
+
+import useTranslationModal from './useTranslationModal';
+import messages from './messages';
+
+import './TranslationModal.scss';
+
+const TranslationModal = ({
+  isOpen,
+  close,
+  selectedLanguage,
+  setSelectedLanguage,
+  availableLanguages,
+}) => {
+  const { formatMessage } = useIntl();
+  const { selectedIndex, setSelectedIndex, onSubmit } = useTranslationModal({
+    selectedLanguage,
+    setSelectedLanguage,
+    close,
+    availableLanguages,
+  });
+
+  return (
+    <StandardModal
+      title={formatMessage(messages.languageSelectionModalTitle)}
+      isOpen={isOpen}
+      onClose={close}
+      footerNode={(
+        <ActionRow>
+          <ActionRow.Spacer />
+          <Button variant="tertiary" onClick={close}>
+            {formatMessage(messages.cancelButtonText)}
+          </Button>
+          <Button onClick={onSubmit}>
+            {formatMessage(messages.submitButtonText)}
+          </Button>
+        </ActionRow>
+      )}
+    >
+      <ListBox className="listbox-container">
+        {availableLanguages.map(({ code, label }, index) => (
+          <ListBoxOption
+            className="d-flex justify-content-between"
+            key={code}
+            selectedOptionIndex={selectedIndex}
+            onSelect={() => setSelectedIndex(index)}
+          >
+            {label}
+            {selectedIndex === index && <Icon src={Check} />}
+          </ListBoxOption>
+        ))}
+      </ListBox>
+    </StandardModal>
+  );
+};
+
+TranslationModal.propTypes = {
+  isOpen: PropTypes.bool.isRequired,
+  close: PropTypes.func.isRequired,
+  selectedLanguage: PropTypes.string.isRequired,
+  setSelectedLanguage: PropTypes.func.isRequired,
+  availableLanguages: PropTypes.arrayOf(
+    PropTypes.shape({
+      code: PropTypes.string.isRequired,
+      label: PropTypes.string.isRequired,
+    }),
+  ).isRequired,
+};
+
+export default TranslationModal;

plugins/UnitTranslationPlugin/translation-selection/TranslationModal.scss

@@ -0,0 +1,7 @@
+.listbox-container {
+  max-height: 400px;
+
+  :last-child {
+    margin-bottom: 5px;
+  }
+}

plugins/UnitTranslationPlugin/translation-selection/TranslationModal.test.jsx

@@ -0,0 +1,59 @@
+import { shallow } from '@edx/react-unit-test-utils';
+
+import TranslationModal from './TranslationModal';
+
+jest.mock('./useTranslationModal', () => ({
+  __esModule: true,
+  default: () => ({
+    selectedIndex: 0,
+    setSelectedIndex: jest.fn(),
+    onSubmit: jest.fn().mockName('onSubmit'),
+  }),
+}));
+jest.mock('@openedx/paragon', () => jest.requireActual('@edx/react-unit-test-utils').mockComponents({
+  StandardModal: 'StandardModal',
+  ActionRow: {
+    Spacer: 'Spacer',
+  },
+  Button: 'Button',
+  Icon: 'Icon',
+  ListBox: 'ListBox',
+  ListBoxOption: 'ListBoxOption',
+}));
+jest.mock('@openedx/paragon/icons', () => ({
+  Check: jest.fn().mockName('icons.Check'),
+}));
+jest.mock('@edx/frontend-platform/i18n', () => {
+  const i18n = jest.requireActual('@edx/frontend-platform/i18n');
+  const { formatMessage } = jest.requireActual('@edx/react-unit-test-utils');
+  return {
+    ...i18n,
+    useIntl: jest.fn(() => ({
+      formatMessage,
+    })),
+  };
+});
+
+describe('TranslationModal', () => {
+  const props = {
+    isOpen: true,
+    close: jest.fn().mockName('close'),
+    selectedLanguage: 'en',
+    setSelectedLanguage: jest.fn().mockName('setSelectedLanguage'),
+    availableLanguages: [
+      {
+        code: 'en',
+        label: 'English',
+      },
+      {
+        code: 'es',
+        label: 'Spanish',
+      },
+    ],
+  };
+  it('renders correctly', () => {
+    const wrapper = shallow(<TranslationModal {...props} />);
+    expect(wrapper.snapshot).toMatchSnapshot();
+    expect(wrapper.instance.findByType('ListBoxOption')).toHaveLength(2);
+  });
+});

plugins/UnitTranslationPlugin/translation-selection/__snapshots__/TranslationModal.test.jsx.snap

@@ -0,0 +1,49 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`TranslationModal renders correctly 1`] = `
+<StandardModal
+  footerNode={
+    <ActionRow>
+      <Spacer />
+      <Button
+        onClick={[MockFunction close]}
+        variant="tertiary"
+      >
+        Cancel
+      </Button>
+      <Button
+        onClick={[MockFunction onSubmit]}
+      >
+        Submit
+      </Button>
+    </ActionRow>
+  }
+  isOpen={true}
+  onClose={[MockFunction close]}
+  title="Translate this course"
+>
+  <ListBox
+    className="listbox-container"
+  >
+    <ListBoxOption
+      className="d-flex justify-content-between"
+      key="en"
+      onSelect={[Function]}
+      selectedOptionIndex={0}
+    >
+      English
+      <Icon
+        src={[MockFunction icons.Check]}
+      />
+    </ListBoxOption>
+    <ListBoxOption
+      className="d-flex justify-content-between"
+      key="es"
+      onSelect={[Function]}
+      selectedOptionIndex={0}
+    >
+      Spanish
+    </ListBoxOption>
+  </ListBox>
+</StandardModal>
+`;

plugins/UnitTranslationPlugin/translation-selection/__snapshots__/index.test.jsx.snap

@@ -0,0 +1,50 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`<TranslationSelection /> renders 1`] = `
+<Fragment>
+  <ProductTour
+    tours={
+      Array [
+        Object {
+          "abitrarily": "defined",
+        },
+      ]
+    }
+  />
+  <IconButton
+    alt="change-language"
+    className="mr-2 mb-2 float-right"
+    iconAs="Icon"
+    id="translation-selection-button"
+    onClick={[MockFunction open]}
+    src="Language"
+    variant="primary"
+  />
+  <TranslationModal
+    availableLanguages={
+      Array [
+        Object {
+          "code": "en",
+          "label": "English",
+        },
+        Object {
+          "code": "es",
+          "label": "Spanish",
+        },
+      ]
+    }
+    close={[MockFunction close]}
+    courseId="course-v1:edX+DemoX+Demo_Course"
+    id="plugin-test-id"
+    isOpen={false}
+    selectedLanguage="en"
+    setSelectedLanguage={[MockFunction setSelectedLanguage]}
+  />
+  <FeedbackWidget
+    courseId="course-v1:edX+DemoX+Demo_Course"
+    translationLanguage="en"
+    unitId="unit-test-id"
+    userId="123"
+  />
+</Fragment>
+`;

plugins/UnitTranslationPlugin/translation-selection/index.jsx

@@ -0,0 +1,100 @@
+import React, { useContext, useEffect } from 'react';
+import PropTypes from 'prop-types';
+
+import { AppContext } from '@edx/frontend-platform/react';
+import { IconButton, Icon, ProductTour } from '@openedx/paragon';
+import { Language } from '@openedx/paragon/icons';
+import { useDispatch } from 'react-redux';
+import { stringifyUrl } from 'query-string';
+
+import { registerOverrideMethod } from '@src/generic/plugin-store';
+
+import TranslationModal from './TranslationModal';
+import useTranslationTour from './useTranslationTour';
+import useSelectLanguage from './useSelectLanguage';
+import FeedbackWidget from '../feedback-widget';
+
+const TranslationSelection = ({
+  id, courseId, language, availableLanguages, unitId,
+}) => {
+  const {
+    authenticatedUser: { userId },
+  } = useContext(AppContext);
+  const dispatch = useDispatch();
+  const {
+    translationTour, isOpen, open, close,
+  } = useTranslationTour();
+
+  const { selectedLanguage, setSelectedLanguage } = useSelectLanguage({
+    courseId,
+    language,
+  });
+
+  useEffect(() => {
+    dispatch(
+      registerOverrideMethod({
+        pluginName: id,
+        methodName: 'getIFrameUrl',
+        method: (iframeUrl) => {
+          const finalUrl = stringifyUrl({
+            url: iframeUrl,
+            query: {
+              ...(language
+                && selectedLanguage
+                && language !== selectedLanguage && {
+                src_lang: language,
+                dest_lang: selectedLanguage,
+              }),
+            },
+          });
+          return finalUrl;
+        },
+      }),
+    );
+  }, [language, selectedLanguage]);
+
+  return (
+    <>
+      <ProductTour tours={[translationTour]} />
+      <IconButton
+        src={Language}
+        iconAs={Icon}
+        alt="change-language"
+        onClick={open}
+        variant="primary"
+        className="mr-2 mb-2 float-right"
+        id="translation-selection-button"
+      />
+      <TranslationModal
+        isOpen={isOpen}
+        close={close}
+        courseId={courseId}
+        selectedLanguage={selectedLanguage}
+        setSelectedLanguage={setSelectedLanguage}
+        availableLanguages={availableLanguages}
+        id={id}
+      />
+      <FeedbackWidget
+        courseId={courseId}
+        translationLanguage={selectedLanguage}
+        unitId={unitId}
+        userId={userId}
+      />
+    </>
+  );
+};
+
+TranslationSelection.propTypes = {
+  id: PropTypes.string.isRequired,
+  courseId: PropTypes.string.isRequired,
+  unitId: PropTypes.string.isRequired,
+  language: PropTypes.string.isRequired,
+  availableLanguages: PropTypes.arrayOf(PropTypes.shape({
+    code: PropTypes.string.isRequired,
+    label: PropTypes.string.isRequired,
+  })).isRequired,
+};
+
+TranslationSelection.defaultProps = {};
+
+export default TranslationSelection;

plugins/UnitTranslationPlugin/translation-selection/index.test.jsx

@@ -0,0 +1,63 @@
+import { shallow } from '@edx/react-unit-test-utils';
+
+import TranslationSelection from './index';
+
+jest.mock('react', () => ({
+  ...jest.requireActual('react'),
+  useContext: jest.fn().mockName('useContext').mockReturnValue({
+    authenticatedUser: {
+      userId: '123',
+    },
+  }),
+}));
+jest.mock('@openedx/paragon', () => ({
+  IconButton: 'IconButton',
+  Icon: 'Icon',
+  ProductTour: 'ProductTour',
+}));
+jest.mock('@openedx/paragon/icons', () => ({
+  Language: 'Language',
+}));
+jest.mock('./useTranslationTour', () => () => ({
+  translationTour: {
+    abitrarily: 'defined',
+  },
+  isOpen: false,
+  open: jest.fn().mockName('open'),
+  close: jest.fn().mockName('close'),
+}));
+jest.mock('react-redux', () => ({
+  useDispatch: jest.fn().mockName('useDispatch'),
+}));
+jest.mock('@src/generic/plugin-store', () => ({
+  registerOverrideMethod: jest.fn().mockName('registerOverrideMethod'),
+}));
+jest.mock('./TranslationModal', () => 'TranslationModal');
+jest.mock('./useSelectLanguage', () => () => ({
+  selectedLanguage: 'en',
+  setSelectedLanguage: jest.fn().mockName('setSelectedLanguage'),
+}));
+jest.mock('../feedback-widget', () => 'FeedbackWidget');
+
+describe('<TranslationSelection />', () => {
+  const props = {
+    id: 'plugin-test-id',
+    courseId: 'course-v1:edX+DemoX+Demo_Course',
+    language: 'en',
+    availableLanguages: [
+      {
+        code: 'en',
+        label: 'English',
+      },
+      {
+        code: 'es',
+        label: 'Spanish',
+      },
+    ],
+    unitId: 'unit-test-id',
+  };
+  it('renders', () => {
+    const wrapper = shallow(<TranslationSelection {...props} />);
+    expect(wrapper.snapshot).toMatchSnapshot();
+  });
+});

plugins/UnitTranslationPlugin/translation-selection/messages.js

@@ -0,0 +1,41 @@
+import { defineMessages } from '@edx/frontend-platform/i18n';
+
+const messages = defineMessages({
+  translationTourModalTitle: {
+    id: 'translationSelection.translationTourModalTitle',
+    defaultMessage: 'This is a standard modal dialog',
+    description: 'Title for the translation modal.',
+  },
+  translationTourModalBody: {
+    id: 'translationSelection.translationTourModalBody',
+    defaultMessage: 'Now you can easily translate course content.',
+    description: 'Body for the translation modal.',
+  },
+  tryItButtonText: {
+    id: 'translationSelection.tryItButtonText',
+    defaultMessage: 'Try it',
+    description: 'Button text for the translation modal.',
+  },
+  dismissButtonText: {
+    id: 'translationSelection.dismissButtonText',
+    defaultMessage: 'Dismiss',
+    description: 'Button text for the translation modal.',
+  },
+  languageSelectionModalTitle: {
+    id: 'translationSelection.languageSelectionModalTitle',
+    defaultMessage: 'Translate this course',
+    description: 'Title for the translation modal.',
+  },
+  cancelButtonText: {
+    id: 'translationSelection.cancelButtonText',
+    defaultMessage: 'Cancel',
+    description: 'Button text for the translation modal.',
+  },
+  submitButtonText: {
+    id: 'translationSelection.submitButtonText',
+    defaultMessage: 'Submit',
+    description: 'Button text for the translation modal.',
+  },
+});
+
+export default messages;

plugins/UnitTranslationPlugin/translation-selection/useSelectLanguage.js

@@ -0,0 +1,35 @@
+import { useCallback } from 'react';
+import { StrictDict, useKeyedState } from '@edx/react-unit-test-utils';
+import {
+  getLocalStorage,
+  setLocalStorage,
+} from '@src/data/localStorage';
+
+export const selectedLanguageKey = 'selectedLanguages';
+
+export const stateKeys = StrictDict({
+  selectedLanguage: 'selectedLanguage',
+});
+
+const useSelectLanguage = ({ courseId, language }) => {
+  const selectedLanguageItem = getLocalStorage(selectedLanguageKey) || {};
+  const [selectedLanguage, updateSelectedLanguage] = useKeyedState(
+    stateKeys.selectedLanguage,
+    selectedLanguageItem[courseId] || language,
+  );
+
+  const setSelectedLanguage = useCallback((newSelectedLanguage) => {
+    setLocalStorage(selectedLanguageKey, {
+      ...selectedLanguageItem,
+      [courseId]: newSelectedLanguage,
+    });
+    updateSelectedLanguage(newSelectedLanguage);
+  });
+
+  return {
+    selectedLanguage,
+    setSelectedLanguage,
+  };
+};
+
+export default useSelectLanguage;

plugins/UnitTranslationPlugin/translation-selection/useSelectLanguage.test.js

@@ -0,0 +1,63 @@
+import { mockUseKeyedState } from '@edx/react-unit-test-utils';
+import {
+  getLocalStorage,
+  setLocalStorage,
+} from '@src/data/localStorage';
+
+import useSelectLanguage, {
+  stateKeys,
+  selectedLanguageKey,
+} from './useSelectLanguage';
+
+const state = mockUseKeyedState(stateKeys);
+
+jest.mock('react', () => ({
+  ...jest.requireActual('react'),
+  useCallback: jest.fn((cb, prereqs) => (...args) => [
+    cb(...args),
+    { cb, prereqs },
+  ]),
+}));
+jest.mock('@src/data/localStorage', () => ({
+  getLocalStorage: jest.fn(),
+  setLocalStorage: jest.fn(),
+}));
+
+describe('useSelectLanguage', () => {
+  const props = {
+    courseId: 'test-course-id',
+    language: 'en',
+  };
+  const languages = [
+    { code: 'en', label: 'English' },
+    { code: 'es', label: 'Spanish' },
+  ];
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+    state.mock();
+  });
+  afterEach(() => {
+    state.resetVals();
+  });
+
+  languages.forEach(({ code, label }) => {
+    it(`initializes selectedLanguage to the selected language (${label})`, () => {
+      getLocalStorage.mockReturnValueOnce({ [props.courseId]: code });
+      const { selectedLanguage } = useSelectLanguage(props);
+
+      state.expectInitializedWith(stateKeys.selectedLanguage, code);
+      expect(selectedLanguage).toBe(code);
+    });
+  });
+
+  test('setSelectedLanguage behavior', () => {
+    const { setSelectedLanguage } = useSelectLanguage(props);
+
+    setSelectedLanguage('es');
+    state.expectSetStateCalledWith(stateKeys.selectedLanguage, 'es');
+    expect(setLocalStorage).toHaveBeenCalledWith(selectedLanguageKey, {
+      [props.courseId]: 'es',
+    });
+  });
+});

plugins/UnitTranslationPlugin/translation-selection/useTranslationModal.js

@@ -0,0 +1,29 @@
+import { useCallback } from 'react';
+import { StrictDict, useKeyedState } from '@edx/react-unit-test-utils';
+
+export const stateKeys = StrictDict({
+  selectedIndex: 'selectedIndex',
+});
+
+const useTranslationModal = ({
+  selectedLanguage, setSelectedLanguage, close, availableLanguages,
+}) => {
+  const [selectedIndex, setSelectedIndex] = useKeyedState(
+    stateKeys.selectedIndex,
+    availableLanguages.findIndex((lang) => lang.code === selectedLanguage),
+  );
+
+  const onSubmit = useCallback(() => {
+    const newSelectedLanguage = availableLanguages[selectedIndex].code;
+    setSelectedLanguage(newSelectedLanguage);
+    close();
+  }, [selectedIndex]);
+
+  return {
+    selectedIndex,
+    setSelectedIndex,
+    onSubmit,
+  };
+};
+
+export default useTranslationModal;

plugins/UnitTranslationPlugin/translation-selection/useTranslationModal.test.js

@@ -0,0 +1,49 @@
+import { mockUseKeyedState } from '@edx/react-unit-test-utils';
+
+import useTranslationModal, { stateKeys } from './useTranslationModal';
+
+const state = mockUseKeyedState(stateKeys);
+
+jest.mock('react', () => ({
+  ...jest.requireActual('react'),
+  useCallback: jest.fn((cb, prereqs) => (...args) => ([
+    cb(...args), { cb, prereqs },
+  ])),
+}));
+
+describe('useTranslationModal', () => {
+  const props = {
+    selectedLanguage: 'en',
+    setSelectedLanguage: jest.fn(),
+    close: jest.fn(),
+    availableLanguages: [
+      { code: 'en', label: 'English' },
+      { code: 'es', label: 'Spanish' },
+    ],
+  };
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+    state.mock();
+  });
+  afterEach(() => {
+    state.resetVals();
+  });
+
+  it('initializes selectedIndex to the index of the selected language', () => {
+    const { selectedIndex } = useTranslationModal(props);
+
+    state.expectInitializedWith(stateKeys.selectedIndex, 0);
+    expect(selectedIndex).toBe(0);
+  });
+
+  it('onSubmit updates the selected language and closes the modal', () => {
+    const { onSubmit } = useTranslationModal({
+      ...props,
+      selectedLanguage: 'es',
+    });
+    onSubmit();
+    expect(props.setSelectedLanguage).toHaveBeenCalledWith('es');
+    expect(props.close).toHaveBeenCalled();
+  });
+});

plugins/UnitTranslationPlugin/translation-selection/useTranslationTour.js

@@ -0,0 +1,62 @@
+import { useCallback } from 'react';
+
+import { useIntl } from '@edx/frontend-platform/i18n';
+import { useToggle } from '@openedx/paragon';
+import { StrictDict, useKeyedState } from '@edx/react-unit-test-utils';
+
+import messages from './messages';
+
+const hasSeenTranslationTourKey = 'hasSeenTranslationTour';
+
+export const stateKeys = StrictDict({
+  showTranslationTour: 'showTranslationTour',
+});
+
+const useTranslationTour = () => {
+  const { formatMessage } = useIntl();
+
+  const [isTourEnabled, setIsTourEnabled] = useKeyedState(
+    stateKeys.showTranslationTour,
+    global.localStorage.getItem(hasSeenTranslationTourKey) !== 'true',
+  );
+  const [isOpen, open, close] = useToggle(false);
+
+  const endTour = useCallback(() => {
+    global.localStorage.setItem(hasSeenTranslationTourKey, 'true');
+    setIsTourEnabled(false);
+  }, [isTourEnabled, setIsTourEnabled]);
+
+  const tryIt = useCallback(() => {
+    endTour();
+    open();
+  }, [endTour, open]);
+
+  const translationTour = isTourEnabled
+    ? {
+      tourId: 'translation',
+      enabled: isTourEnabled,
+      onDismiss: endTour,
+      onEnd: tryIt,
+      checkpoints: [
+        {
+          title: formatMessage(messages.translationTourModalTitle),
+          body: formatMessage(messages.translationTourModalBody),
+          placement: 'bottom',
+          target: '#translation-selection-button',
+          showDismissButton: true,
+          endButtonText: formatMessage(messages.tryItButtonText),
+          dismissButtonText: formatMessage(messages.dismissButtonText),
+        },
+      ],
+    }
+    : {};
+
+  return {
+    translationTour,
+    isOpen,
+    open,
+    close,
+  };
+};
+
+export default useTranslationTour;

plugins/UnitTranslationPlugin/translation-selection/useTranslationTour.test.js

@@ -0,0 +1,95 @@
+import { mockUseKeyedState } from '@edx/react-unit-test-utils';
+import { useToggle } from '@openedx/paragon';
+
+import useTranslationTour, { stateKeys } from './useTranslationTour';
+
+jest.mock('react', () => ({
+  ...jest.requireActual('react'),
+  useCallback: jest.fn((cb, prereqs) => () => {
+    cb();
+    return { useCallback: { cb, prereqs } };
+  }),
+}));
+jest.mock('@openedx/paragon', () => ({
+  useToggle: jest.fn(),
+}));
+jest.mock('@edx/frontend-platform/i18n', () => {
+  const i18n = jest.requireActual('@edx/frontend-platform/i18n');
+  const { formatMessage } = jest.requireActual('@edx/react-unit-test-utils');
+  // this provide consistent for the test on different platform/timezone
+  const formatDate = jest.fn(date => new Date(date).toISOString()).mockName('useIntl.formatDate');
+  return {
+    ...i18n,
+    useIntl: jest.fn(() => ({
+      formatMessage,
+      formatDate,
+    })),
+    defineMessages: m => m,
+    FormattedMessage: () => 'FormattedMessage',
+  };
+});
+jest.mock('@src/data/localStorage', () => ({
+  getLocalStorage: jest.fn(),
+  setLocalStorage: jest.fn(),
+}));
+
+const state = mockUseKeyedState(stateKeys);
+
+describe('useTranslationSelection', () => {
+  const mockLocalStroage = {
+    getItem: jest.fn(),
+    setItem: jest.fn(),
+  };
+
+  const toggleOpen = jest.fn();
+  const toggleClose = jest.fn();
+
+  useToggle.mockReturnValue([false, toggleOpen, toggleClose]);
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+    state.mock();
+    window.localStorage = mockLocalStroage;
+  });
+  afterEach(() => {
+    state.resetVals();
+    delete window.localStorage;
+  });
+
+  it('do not have translation tour if user already seen it', () => {
+    mockLocalStroage.getItem.mockReturnValueOnce('not seen');
+    const { translationTour } = useTranslationTour();
+
+    expect(translationTour.enabled).toBe(true);
+  });
+
+  it('show translation tour if user has not seen it', () => {
+    mockLocalStroage.getItem.mockReturnValueOnce('true');
+    const { translationTour } = useTranslationTour();
+
+    expect(translationTour).toMatchObject({});
+  });
+  test('open and close as pass from useToggle', () => {
+    const { isOpen, open, close } = useTranslationTour();
+    expect(isOpen).toBe(false);
+    expect(toggleOpen).toBe(open);
+    expect(toggleClose).toBe(close);
+  });
+  test('end tour on dismiss button click', () => {
+    mockLocalStroage.getItem.mockReturnValueOnce('not seen');
+    const { translationTour } = useTranslationTour();
+    translationTour.onDismiss();
+    expect(mockLocalStroage.setItem).toHaveBeenCalledWith(
+      'hasSeenTranslationTour',
+      'true',
+    );
+    state.expectSetStateCalledWith(stateKeys.showTranslationTour, false);
+  });
+  test('end tour and open modal on try it button click', () => {
+    mockLocalStroage.getItem.mockReturnValueOnce('not seen');
+    const { translationTour } = useTranslationTour();
+    translationTour.onEnd();
+    state.expectSetStateCalledWith(stateKeys.showTranslationTour, false);
+    expect(toggleOpen).toHaveBeenCalled();
+  });
+});

public/index.html

@@ -1,10 +1,14 @@
 <!doctype html>
 <html lang="en-us">
   <head>
-      <title>Course | edX</title>
-      <meta charset="utf-8">
-      <meta name="viewport" content="width=device-width, initial-scale=1.0">
-      <link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" />
+    <title>Course | <%= process.env.SITE_NAME %></title>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <link rel="shortcut icon" href="<%=htmlWebpackPlugin.options.FAVICON_URL%>" type="image/x-icon" />
+
+    <% if (htmlWebpackPlugin.options.OPTIMIZELY_PROJECT_ID) { %>
+      <script src="https://www.edx.org/optimizelyjs/<%= htmlWebpackPlugin.options.OPTIMIZELY_PROJECT_ID %>.js"></script>
+    <% } %>
   </head>
   <body>
     <div id="root"></div>

public/static/LmsHtmlFragment.css

@@ -0,0 +1,11 @@
+body a {
+    color: #00688D;
+}
+
+body.inline-link a {
+    text-decoration: underline;
+}
+
+body.small {
+    font-size: 0.875rem;
+}

renovate.json

@@ -5,5 +5,12 @@
   "patch": {
     "automerge": true
   },
-  "rebaseStalePrs": true
+  "rebaseStalePrs": true,
+  "packageRules": [
+    {
+      "matchPackagePatterns": ["@edx", "@openedx"],
+      "matchUpdateTypes": ["minor", "patch"],
+      "automerge": true
+    }
+  ]
 }

src/CoursewareRedirect.jsx

@@ -1,30 +0,0 @@
-import React from 'react';
-import { Switch, Route, useRouteMatch } from 'react-router';
-import { getConfig } from '@edx/frontend-platform';
-import { FormattedMessage } from '@edx/frontend-platform/i18n';
-import PageLoading from './PageLoading';
-
-export default () => {
-  const { path } = useRouteMatch();
-  return (
-    <div className="flex-grow-1">
-      <PageLoading srMessage={(
-        <FormattedMessage
-          id="learn.redirect.interstitial.message"
-          description="The screen-reader message when a page is about to redirect"
-          defaultMessage="Redirecting..."
-        />
-      )}
-      />
-
-      <Switch>
-        <Route
-          path={`${path}/course-home/:courseId`}
-          render={({ match }) => {
-            global.location.assign(`${getConfig().LMS_BASE_URL}/courses/${match.params.courseId}/course/`);
-          }}
-        />
-      </Switch>
-    </div>
-  );
-};

src/alerts/access-expiration-alert/AccessExpirationAlert.jsx

@@ -0,0 +1,137 @@
+import PropTypes from 'prop-types';
+import { sendTrackEvent } from '@edx/frontend-platform/analytics';
+import {
+  FormattedMessage, FormattedDate, injectIntl, intlShape,
+} from '@edx/frontend-platform/i18n';
+import { Alert, Hyperlink } from '@openedx/paragon';
+import { Info } from '@openedx/paragon/icons';
+
+import messages from './messages';
+
+const AccessExpirationAlert = ({ intl, payload }) => {
+  const {
+    accessExpiration,
+    courseId,
+    org,
+    userTimezone,
+    analyticsPageName,
+  } = payload;
+  const timezoneFormatArgs = userTimezone ? { timeZone: userTimezone } : {};
+
+  if (!accessExpiration) {
+    return null;
+  }
+
+  const {
+    expirationDate,
+    upgradeDeadline,
+    upgradeUrl,
+  } = accessExpiration;
+
+  const logClick = () => {
+    sendTrackEvent('edx.bi.ecommerce.upsell_links_clicked', {
+      org_key: org,
+      courserun_key: courseId,
+      linkCategory: 'FBE_banner',
+      linkName: `${analyticsPageName}_audit_access_expires`,
+      linkType: 'link',
+      pageName: analyticsPageName,
+    });
+  };
+
+  let deadlineMessage = null;
+  if (upgradeDeadline && upgradeUrl) {
+    deadlineMessage = (
+      <>
+        <br />
+        <FormattedMessage
+          id="learning.accessExpiration.deadline"
+          defaultMessage="Upgrade by {date} to get unlimited access to the course as long as it exists on the site."
+          description="Warning shown to learner to upgrade while they are enrolled on the audit version and it's possible to upgrade"
+          values={{
+            date: (
+              <FormattedDate
+                key="accessExpirationUpgradeDeadline"
+                day="numeric"
+                month="short"
+                year="numeric"
+                value={upgradeDeadline}
+                {...timezoneFormatArgs}
+              />
+            ),
+          }}
+        />
+        &nbsp;
+        <Hyperlink
+          className="font-weight-bold"
+          style={{ textDecoration: 'underline' }}
+          destination={upgradeUrl}
+          onClick={logClick}
+        >
+          {intl.formatMessage(messages.upgradeNow)}
+        </Hyperlink>
+      </>
+    );
+  }
+
+  return (
+    <Alert variant="info" icon={Info}>
+      <span className="font-weight-bold">
+        <FormattedMessage
+          id="learning.accessExpiration.header"
+          defaultMessage="Audit Access Expires {date}"
+          description="Headline for auditing deadline"
+          values={{
+            date: (
+              <FormattedDate
+                key="accessExpirationHeaderDate"
+                day="numeric"
+                month="short"
+                year="numeric"
+                value={expirationDate}
+                {...timezoneFormatArgs}
+              />
+            ),
+          }}
+        />
+      </span>
+      <br />
+      <FormattedMessage
+        id="learning.accessExpiration.body"
+        defaultMessage="You lose all access to this course, including your progress, on {date}."
+        description="Message body to tell learner the consequences of course expiration."
+        values={{
+          date: (
+            <FormattedDate
+              key="accessExpirationBodyDate"
+              day="numeric"
+              month="short"
+              year="numeric"
+              value={expirationDate}
+              {...timezoneFormatArgs}
+            />
+          ),
+        }}
+      />
+      {deadlineMessage}
+    </Alert>
+  );
+};
+
+AccessExpirationAlert.propTypes = {
+  intl: intlShape.isRequired,
+  payload: PropTypes.shape({
+    accessExpiration: PropTypes.shape({
+      expirationDate: PropTypes.string.isRequired,
+      masqueradingExpiredCourse: PropTypes.bool.isRequired,
+      upgradeDeadline: PropTypes.string,
+      upgradeUrl: PropTypes.string,
+    }).isRequired,
+    courseId: PropTypes.string.isRequired,
+    org: PropTypes.string.isRequired,
+    userTimezone: PropTypes.string.isRequired,
+    analyticsPageName: PropTypes.string.isRequired,
+  }).isRequired,
+};
+
+export default injectIntl(AccessExpirationAlert);

src/alerts/access-expiration-alert/AccessExpirationMasqueradeBanner.jsx

@@ -0,0 +1,39 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import { FormattedMessage, FormattedDate } from '@edx/frontend-platform/i18n';
+import { PageBanner } from '@openedx/paragon';
+
+const AccessExpirationMasqueradeBanner = ({ payload }) => {
+  const {
+    expirationDate,
+    userTimezone,
+  } = payload;
+
+  const timezoneFormatArgs = userTimezone ? { timeZone: userTimezone } : {};
+
+  return (
+    <PageBanner variant="warning">
+      <FormattedMessage
+        id="instructorToolbar.pageBanner.courseHasExpired"
+        defaultMessage="This learner no longer has access to this course. Their access expired on {date}."
+        description="It's a warning that is shown to course author when being masqueraded as learner, while the course has expired for the real learner."
+        values={{
+          date: <FormattedDate
+            key="instructorToolbar.pageBanner.accessExpirationDate"
+            value={expirationDate}
+            {...timezoneFormatArgs}
+          />,
+        }}
+      />
+    </PageBanner>
+  );
+};
+
+AccessExpirationMasqueradeBanner.propTypes = {
+  payload: PropTypes.shape({
+    expirationDate: PropTypes.string.isRequired,
+    userTimezone: PropTypes.string.isRequired,
+  }).isRequired,
+};
+
+export default AccessExpirationMasqueradeBanner;

src/alerts/access-expiration-alert/hooks.js

@@ -0,0 +1,51 @@
+import React, { useMemo } from 'react';
+import { useAlert } from '../../generic/user-messages';
+import { useModel } from '../../generic/model-store';
+
+const AccessExpirationAlert = React.lazy(() => import('./AccessExpirationAlert'));
+const AccessExpirationMasqueradeBanner = React.lazy(() => import('./AccessExpirationMasqueradeBanner'));
+
+function useAccessExpirationAlert(accessExpiration, courseId, org, userTimezone, topic, analyticsPageName) {
+  const isVisible = accessExpiration && !accessExpiration.masqueradingExpiredCourse; // If it exists, show it.
+  const payload = useMemo(() => ({
+    accessExpiration,
+    courseId,
+    org,
+    userTimezone,
+    analyticsPageName,
+  }), [accessExpiration, analyticsPageName, courseId, org, userTimezone]);
+
+  useAlert(isVisible, {
+    code: 'clientAccessExpirationAlert',
+    payload,
+    topic,
+  });
+
+  return { clientAccessExpirationAlert: AccessExpirationAlert };
+}
+
+export function useAccessExpirationMasqueradeBanner(courseId, tab) {
+  const {
+    userTimezone,
+  } = useModel('courseHomeMeta', courseId);
+  const {
+    accessExpiration,
+  } = useModel(tab, courseId);
+
+  const isVisible = accessExpiration && accessExpiration.masqueradingExpiredCourse;
+  const expirationDate = accessExpiration && accessExpiration.expirationDate;
+  const payload = useMemo(() => ({
+    expirationDate,
+    userTimezone,
+  }), [expirationDate, userTimezone]);
+
+  useAlert(isVisible, {
+    code: 'clientAccessExpirationMasqueradeBanner',
+    payload,
+    topic: 'instructor-toolbar-alerts',
+  });
+
+  return { clientAccessExpirationMasqueradeBanner: AccessExpirationMasqueradeBanner };
+}
+
+export default useAccessExpirationAlert;

src/alerts/access-expiration-alert/index.js

@@ -0,0 +1 @@
+export { default, useAccessExpirationMasqueradeBanner } from './hooks';

src/alerts/access-expiration-alert/messages.js

@@ -0,0 +1,11 @@
+import { defineMessages } from '@edx/frontend-platform/i18n';
+
+const messages = defineMessages({
+  upgradeNow: {
+    id: 'learning.accessExpiration.upgradeNow',
+    defaultMessage: 'Upgrade now',
+    description: 'The anchor text for the upgrading link',
+  },
+});
+
+export default messages;

src/alerts/active-enteprise-alert/ActiveEnterpriseAlert.jsx

@@ -0,0 +1,48 @@
+import React from 'react';
+import { FormattedMessage, injectIntl, intlShape } from '@edx/frontend-platform/i18n';
+import PropTypes from 'prop-types';
+import { Alert, Hyperlink } from '@openedx/paragon';
+import { WarningFilled } from '@openedx/paragon/icons';
+
+import { getConfig } from '@edx/frontend-platform';
+import genericMessages from './messages';
+
+const ActiveEnterpriseAlert = ({ intl, payload }) => {
+  const { text, courseId } = payload;
+  const changeActiveEnterprise = (
+    <Hyperlink
+      style={{ textDecoration: 'underline' }}
+      destination={
+        `${getConfig().LMS_BASE_URL}/enterprise/select/active/?success_url=${encodeURIComponent(
+          `${global.location.origin}/course/${courseId}/home`,
+        )}`
+    }
+    >
+      {intl.formatMessage(genericMessages.changeActiveEnterpriseLowercase)}
+    </Hyperlink>
+  );
+
+  return (
+    <Alert variant="warning" icon={WarningFilled}>
+      {text}
+      <FormattedMessage
+        id="learning.activeEnterprise.alert"
+        description="Prompts the user to log-in with the correct enterprise to access the course content."
+        defaultMessage=" {changeActiveEnterprise}."
+        values={{
+          changeActiveEnterprise,
+        }}
+      />
+    </Alert>
+  );
+};
+
+ActiveEnterpriseAlert.propTypes = {
+  intl: intlShape.isRequired,
+  payload: PropTypes.shape({
+    text: PropTypes.string,
+    courseId: PropTypes.string,
+  }).isRequired,
+};
+
+export default injectIntl(ActiveEnterpriseAlert);

src/alerts/active-enteprise-alert/ActiveEnterpriseAlert.test.jsx

@@ -0,0 +1,25 @@
+import React from 'react';
+import { getConfig } from '@edx/frontend-platform';
+import {
+  initializeTestStore, render, screen,
+} from '../../setupTest';
+import ActiveEnterpriseAlert from './ActiveEnterpriseAlert';
+
+describe('ActiveEnterpriseAlert', () => {
+  const mockData = {
+    payload: {
+      text: 'test message',
+      courseId: 'test-course-id',
+    },
+  };
+  beforeAll(async () => {
+    await initializeTestStore({ excludeFetchCourse: true, excludeFetchSequence: true });
+  });
+
+  it('Shows alert message and links', () => {
+    render(<ActiveEnterpriseAlert {...mockData} />);
+    expect(screen.getByRole('alert')).toBeInTheDocument();
+    expect(screen.getByText('test message', { exact: false })).toBeInTheDocument();
+    expect(screen.getByRole('link', { name: 'change enterprise now' })).toHaveAttribute('href', `${getConfig().LMS_BASE_URL}/enterprise/select/active/?success_url=http%3A%2F%2Flocalhost%2Fcourse%2Ftest-course-id%2Fhome`);
+  });
+});

src/alerts/active-enteprise-alert/hooks.js

@@ -0,0 +1,28 @@
+import React, { useMemo } from 'react';
+import { ALERT_TYPES, useAlert } from '../../generic/user-messages';
+import { useModel } from '../../generic/model-store';
+
+const ActiveEnterpriseAlert = React.lazy(() => import('./ActiveEnterpriseAlert'));
+
+export default function useActiveEnterpriseAlert(courseId) {
+  const { courseAccess } = useModel('courseHomeMeta', courseId);
+  /**
+   * This alert should render if
+   *    1. course access code is incorrect_active_enterprise
+   */
+  const isVisible = courseAccess && !courseAccess.hasAccess && courseAccess.errorCode === 'incorrect_active_enterprise';
+
+  const payload = useMemo(() => ({
+    text: courseAccess && courseAccess.userMessage,
+    courseId,
+  }), [courseAccess, courseId]);
+  useAlert(isVisible, {
+    code: 'clientActiveEnterpriseAlert',
+    topic: 'outline',
+    dismissible: false,
+    type: ALERT_TYPES.ERROR,
+    payload,
+  });
+
+  return { clientActiveEnterpriseAlert: ActiveEnterpriseAlert };
+}

src/alerts/active-enteprise-alert/index.js

@@ -0,0 +1,3 @@
+import useActiveEnterpriseAlert from './hooks';
+
+export default useActiveEnterpriseAlert;

src/alerts/active-enteprise-alert/messages.js

@@ -0,0 +1,11 @@
+import { defineMessages } from '@edx/frontend-platform/i18n';
+
+const messages = defineMessages({
+  changeActiveEnterpriseLowercase: {
+    id: 'learning.activeEnterprise.change.alert',
+    defaultMessage: 'change enterprise now',
+    description: 'Text in a link, prompting the user to change active enterprise.  Used in learning.activeEnterprise.change.alert"',
+  },
+});
+
+export default messages;

src/alerts/course-start-alert/CourseStartAlert.jsx

@@ -0,0 +1,105 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import {
+  FormattedDate,
+  FormattedMessage,
+  FormattedRelativeTime,
+  FormattedTime,
+} from '@edx/frontend-platform/i18n';
+import { Alert } from '@openedx/paragon';
+import { Info } from '@openedx/paragon/icons';
+
+import { useModel } from '../../generic/model-store';
+
+const DAY_SEC = 24 * 60 * 60; // in seconds
+const DAY_MS = DAY_SEC * 1000; // in ms
+const YEAR_SEC = 365 * DAY_SEC; // in seconds
+
+const CourseStartAlert = ({ payload }) => {
+  const {
+    courseId,
+  } = payload;
+
+  const {
+    start: startDate,
+    userTimezone,
+  } = useModel('courseHomeMeta', courseId);
+
+  const timezoneFormatArgs = userTimezone ? { timeZone: userTimezone } : {};
+
+  const delta = new Date(startDate) - new Date();
+  const timeRemaining = (
+    <FormattedRelativeTime
+      key="timeRemaining"
+      value={delta / 1000}
+      numeric="auto"
+      // 1 year interval to help auto format. It won't format without updateIntervalInSeconds.
+      updateIntervalInSeconds={YEAR_SEC}
+      {...timezoneFormatArgs}
+    />
+  );
+  if (delta < DAY_MS) {
+    return (
+      <Alert variant="info" icon={Info}>
+        <FormattedMessage
+          id="learning.outline.alert.start.short"
+          defaultMessage="Course starts {timeRemaining} at {courseStartTime}."
+          description="Used when the time remaining is less than a day away."
+          values={{
+            courseStartTime: (
+              <FormattedTime
+                key="courseStartTime"
+                day="numeric"
+                month="short"
+                year="numeric"
+                timeZoneName="short"
+                value={startDate}
+                {...timezoneFormatArgs}
+              />
+            ),
+            timeRemaining,
+          }}
+        />
+      </Alert>
+    );
+  }
+
+  return (
+    <Alert variant="info" icon={Info}>
+      <strong>
+        <FormattedMessage
+          id="learning.outline.alert.start.long"
+          defaultMessage="Course starts {timeRemaining} on {courseStartDate}."
+          description="Used when the time remaining is more than a day away."
+          values={{
+            courseStartDate: (
+              <FormattedDate
+                key="courseStartDate"
+                day="numeric"
+                month="short"
+                year="numeric"
+                value={startDate}
+                {...timezoneFormatArgs}
+              />
+            ),
+            timeRemaining,
+          }}
+        />
+      </strong>
+      <br />
+      <FormattedMessage
+        id="learning.outline.alert.start.calendar"
+        defaultMessage="Don’t forget to add a calendar reminder!"
+        description="It's just a recommendation for learners to set a reminder for the course starting date and is shown when the course starting date is more than a day. "
+      />
+    </Alert>
+  );
+};
+
+CourseStartAlert.propTypes = {
+  payload: PropTypes.shape({
+    courseId: PropTypes.string,
+  }).isRequired,
+};
+
+export default CourseStartAlert;

src/alerts/course-start-alert/CourseStartMasqueradeBanner.jsx

@@ -0,0 +1,44 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import { FormattedMessage, FormattedDate } from '@edx/frontend-platform/i18n';
+import { PageBanner } from '@openedx/paragon';
+
+import { useModel } from '../../generic/model-store';
+
+const CourseStartMasqueradeBanner = ({ payload }) => {
+  const {
+    courseId,
+  } = payload;
+
+  const {
+    start,
+    userTimezone,
+  } = useModel('courseHomeMeta', courseId);
+
+  const timezoneFormatArgs = userTimezone ? { timeZone: userTimezone } : {};
+
+  return (
+    <PageBanner variant="warning">
+      <FormattedMessage
+        id="instructorToolbar.pageBanner.courseHasNotStarted"
+        defaultMessage="This learner does not yet have access to this course. The course starts on {date}."
+        description="It's a warning that is shown to course author when being masqueraded as learner, while the course hasn't started for the real learner yet."
+        values={{
+          date: <FormattedDate
+            key="instructorToolbar.pageBanner.courseStartDate"
+            value={start}
+            {...timezoneFormatArgs}
+          />,
+        }}
+      />
+    </PageBanner>
+  );
+};
+
+CourseStartMasqueradeBanner.propTypes = {
+  payload: PropTypes.shape({
+    courseId: PropTypes.string.isRequired,
+  }).isRequired,
+};
+
+export default CourseStartMasqueradeBanner;

src/alerts/course-start-alert/hooks.js

@@ -0,0 +1,62 @@
+import React, { useMemo } from 'react';
+import { useAlert } from '../../generic/user-messages';
+import { useModel } from '../../generic/model-store';
+
+const CourseStartAlert = React.lazy(() => import('./CourseStartAlert'));
+const CourseStartMasqueradeBanner = React.lazy(() => import('./CourseStartMasqueradeBanner'));
+
+function IsStartDateInFuture(courseId) {
+  const {
+    start,
+  } = useModel('courseHomeMeta', courseId);
+
+  const today = new Date();
+  const startDate = new Date(start);
+  return startDate > today;
+}
+
+function useCourseStartAlert(courseId) {
+  const {
+    isEnrolled,
+  } = useModel('courseHomeMeta', courseId);
+
+  const isVisible = isEnrolled && IsStartDateInFuture(courseId);
+
+  const payload = useMemo(() => ({
+    courseId,
+  }), [courseId]);
+
+  useAlert(isVisible, {
+    code: 'clientCourseStartAlert',
+    payload,
+    topic: 'outline-course-alerts',
+  });
+
+  return {
+    clientCourseStartAlert: CourseStartAlert,
+  };
+}
+
+export function useCourseStartMasqueradeBanner(courseId, tab) {
+  const {
+    isMasquerading,
+  } = useModel('courseHomeMeta', courseId);
+
+  const isVisible = isMasquerading && tab === 'progress' && IsStartDateInFuture(courseId);
+
+  const payload = useMemo(() => ({
+    courseId,
+  }), [courseId]);
+
+  useAlert(isVisible, {
+    code: 'clientCourseStartMasqueradeBanner',
+    payload,
+    topic: 'instructor-toolbar-alerts',
+  });
+
+  return {
+    clientCourseStartMasqueradeBanner: CourseStartMasqueradeBanner,
+  };
+}
+
+export default useCourseStartAlert;

src/alerts/course-start-alert/index.js

@@ -0,0 +1 @@
+export { default, useCourseStartMasqueradeBanner } from './hooks';

src/alerts/enrollment-alert/EnrollmentAlert.jsx

@@ -0,0 +1,70 @@
+import React from 'react';
+import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
+import PropTypes from 'prop-types';
+import { Alert, Button } from '@openedx/paragon';
+import { Info, WarningFilled } from '@openedx/paragon/icons';
+
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
+import { faSpinner } from '@fortawesome/free-solid-svg-icons';
+import { useModel } from '../../generic/model-store';
+
+import messages from './messages';
+import useEnrollClickHandler from './clickHook';
+
+const EnrollmentAlert = ({ intl, payload }) => {
+  const {
+    canEnroll,
+    courseId,
+    extraText,
+    isStaff,
+  } = payload;
+
+  const {
+    org,
+  } = useModel('courseHomeMeta', courseId);
+
+  const { enrollClickHandler, loading } = useEnrollClickHandler(
+    courseId,
+    org,
+    intl.formatMessage(messages.success),
+  );
+
+  let text = intl.formatMessage(messages.alert);
+  let type = 'warning';
+  let icon = WarningFilled;
+  if (isStaff) {
+    text = intl.formatMessage(messages.staffAlert);
+    type = 'info';
+    icon = Info;
+  } else if (extraText) {
+    text = `${text} ${extraText}`;
+  }
+
+  const button = canEnroll && (
+    <Button disabled={loading} variant="link" className="p-0 border-0 align-top mx-1" size="sm" style={{ textDecoration: 'underline' }} onClick={enrollClickHandler}>
+      {intl.formatMessage(messages.enrollNowSentence)}
+    </Button>
+  );
+
+  return (
+    <Alert variant={type} icon={icon}>
+      <div className="d-flex">
+        {text}
+        {button}
+        {loading && <FontAwesomeIcon icon={faSpinner} spin />}
+      </div>
+    </Alert>
+  );
+};
+
+EnrollmentAlert.propTypes = {
+  intl: intlShape.isRequired,
+  payload: PropTypes.shape({
+    canEnroll: PropTypes.bool,
+    courseId: PropTypes.string,
+    extraText: PropTypes.string,
+    isStaff: PropTypes.bool,
+  }).isRequired,
+};
+
+export default injectIntl(EnrollmentAlert);

src/alerts/enrollment-alert/clickHook.js

@@ -0,0 +1,35 @@
+import { useContext, useState, useCallback } from 'react';
+import { sendTrackEvent } from '@edx/frontend-platform/analytics';
+
+import { UserMessagesContext, ALERT_TYPES } from '../../generic/user-messages';
+
+import { postCourseEnrollment } from './data/api';
+
+// Separated into its own file to avoid a circular dependency inside this directory
+
+function useEnrollClickHandler(courseId, orgId, successText) {
+  const [loading, setLoading] = useState(false);
+  const { addFlash } = useContext(UserMessagesContext);
+  const enrollClickHandler = useCallback(() => {
+    setLoading(true);
+    postCourseEnrollment(courseId).then(() => {
+      addFlash({
+        dismissible: true,
+        flash: true,
+        text: successText,
+        type: ALERT_TYPES.SUCCESS,
+        topic: 'course',
+      });
+      setLoading(false);
+      sendTrackEvent('edx.bi.user.course-home.enrollment', {
+        org_key: orgId,
+        courserun_key: courseId,
+      });
+      global.location.reload();
+    });
+  }, [addFlash, courseId, orgId, successText]);
+
+  return { enrollClickHandler, loading };
+}
+
+export default useEnrollClickHandler;

src/alerts/enrollment-alert/data/api.js

@@ -0,0 +1,9 @@
+/* eslint-disable import/prefer-default-export */
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+import { getConfig } from '@edx/frontend-platform';
+
+export async function postCourseEnrollment(courseId) {
+  const url = `${getConfig().LMS_BASE_URL}/api/enrollment/v1/enrollment`;
+  const { data } = await getAuthenticatedHttpClient().post(url, { course_details: { course_id: courseId } });
+  return data;
+}

src/alerts/enrollment-alert/hooks.js

@@ -0,0 +1,39 @@
+/* eslint-disable import/prefer-default-export */
+import React, {
+  useContext, useMemo,
+} from 'react';
+import { AppContext } from '@edx/frontend-platform/react';
+
+import { useAlert } from '../../generic/user-messages';
+import { useModel } from '../../generic/model-store';
+
+const EnrollmentAlert = React.lazy(() => import('./EnrollmentAlert'));
+
+export function useEnrollmentAlert(courseId) {
+  const { authenticatedUser } = useContext(AppContext);
+  const course = useModel('courseHomeMeta', courseId);
+  const outline = useModel('outline', courseId);
+  const enrolledUser = course && course.isEnrolled !== undefined && course.isEnrolled;
+  const privateOutline = outline && outline.courseBlocks && !outline.courseBlocks.courses;
+  /**
+   * This alert should render if
+   *    1. the user is not enrolled,
+   *    2. the user is authenticated, AND
+   *    3. the course is private.
+   */
+  const isVisible = !enrolledUser && authenticatedUser !== null && privateOutline;
+  const payload = useMemo(() => ({
+    canEnroll: outline && outline.enrollAlert ? outline.enrollAlert.canEnroll : false,
+    courseId,
+    extraText: outline && outline.enrollAlert ? outline.enrollAlert.extraText : '',
+    isStaff: course && course.isStaff,
+  }), [course, courseId, outline]);
+
+  useAlert(isVisible, {
+    code: 'clientEnrollmentAlert',
+    payload,
+    topic: 'outline',
+  });
+
+  return { clientEnrollmentAlert: EnrollmentAlert };
+}

src/alerts/enrollment-alert/index.js

@@ -0,0 +1 @@
+export { useEnrollmentAlert as default } from './hooks';

src/alerts/enrollment-alert/messages.js

@@ -1,21 +1,32 @@
 import { defineMessages } from '@edx/frontend-platform/i18n';
 
 const messages = defineMessages({
-  'learning.enrollment.alert': {
+  alert: {
     id: 'learning.enrollment.alert',
     defaultMessage: 'You must be enrolled in the course to see course content.',
     description: 'Message shown to indicate that a user needs to enroll in a course prior to viewing the course content.  Shown as part of an alert, along with a link to enroll.',
   },
-  'learning.staff.enrollment.alert': {
+  staffAlert: {
     id: 'learning.staff.enrollment.alert',
     defaultMessage: 'You are viewing this course as staff, and are not enrolled.',
     description: 'Message shown to indicate that a user is not enrolled, but is able to view a course anyway because they are staff. Shown as part of an alert, along with a link to enroll.',
   },
-  'learning.enrollment.enroll.now': {
-    id: 'learning.enrollment.enroll.now',
-    defaultMessage: 'Enroll Now',
+  enrollNowInline: {
+    id: 'learning.enrollment.enrollNow.Inline',
+    defaultMessage: 'Enroll now',
+    description: 'A link prompting the user to click on it to enroll in the currently viewed course.'
+      + 'This text is meant to be used at the beginning of a sentence (example: Enroll now to view course content.)',
+  },
+  enrollNowSentence: {
+    id: 'learning.enrollment.enrollNow.Sentence',
+    defaultMessage: 'Enroll now.',
     description: 'A link prompting the user to click on it to enroll in the currently viewed course.',
   },
+  success: {
+    id: 'learning.enrollment.success',
+    defaultMessage: "You've successfully enrolled in this course!",
+    description: 'A message telling the user that their course enrollment was successful.',
+  },
 });
 
 export default messages;

src/alerts/logistration-alert/AccountActivationAlert.jsx

@@ -0,0 +1,132 @@
+import React, { useState } from 'react';
+import Cookies from 'js-cookie';
+import { getConfig } from '@edx/frontend-platform';
+import { getAuthenticatedUser } from '@edx/frontend-platform/auth';
+import {
+  AlertModal,
+  Button,
+  Spinner,
+  Icon,
+} from '@openedx/paragon';
+import { Check, ArrowForward } from '@openedx/paragon/icons';
+import { FormattedMessage, injectIntl, intlShape } from '@edx/frontend-platform/i18n';
+import { sendActivationEmail } from '../../courseware/data';
+import messages from './messages';
+
+const AccountActivationAlert = ({
+  intl,
+}) => {
+  const [showModal, setShowModal] = useState(false);
+  const [showSpinner, setShowSpinner] = useState(false);
+  const [showCheck, setShowCheck] = useState(false);
+  const handleOnClick = () => {
+    setShowSpinner(true);
+    setShowCheck(false);
+    sendActivationEmail().then(() => {
+      setShowSpinner(false);
+      setShowCheck(true);
+    });
+  };
+
+  const showAccountActivationAlert = Cookies.get('show-account-activation-popup');
+  if (showAccountActivationAlert !== undefined) {
+    Cookies.remove('show-account-activation-popup', { path: '/', domain: process.env.SESSION_COOKIE_DOMAIN });
+    // extra check to make sure cookie was removed before updating the state. Updating the state without removal
+    // of cookie would make it infinite rendering
+    if (Cookies.get('show-account-activation-popup') === undefined) {
+      setShowModal(true);
+    }
+  }
+
+  const button = (
+    <Button
+      variant="primary"
+      className=""
+      onClick={() => setShowModal(false)}
+    >
+      <FormattedMessage
+        id="account-activation.alert.button"
+        defaultMessage="Continue to {siteName}"
+        description="account activation alert continue button"
+        values={{
+          siteName: getConfig().SITE_NAME,
+        }}
+      />
+      <Icon src={ArrowForward} className="ml-1 d-inline-block align-bottom" />
+    </Button>
+  );
+
+  const children = () => {
+    let bodyContent;
+    const message = (
+      <FormattedMessage
+        id="account-activation.alert.message"
+        defaultMessage="We sent an email to {boldEmail} with a link to activate your account. Can’t find it? Check your spam folder or
+        {sendEmailTag}."
+        description="Message for account activation alert which is shown after the registration"
+        values={{
+          boldEmail: <b>{getAuthenticatedUser() && getAuthenticatedUser().email}</b>,
+          sendEmailTag: (
+          // eslint-disable-next-line jsx-a11y/anchor-is-valid
+            <a href="#" role="button" onClick={handleOnClick}>
+              <FormattedMessage
+                id="account-activation.resend.link"
+                defaultMessage="resend the email"
+                description="Message for resend link in account activation alert which is shown after the registration"
+              />
+            </a>
+          ),
+        }}
+      />
+    );
+    bodyContent = (
+      <div>
+        {message}
+      </div>
+    );
+
+    if (!showCheck && showSpinner) {
+      bodyContent = (
+        <div>
+          {message}
+          <Spinner
+            animation="border"
+            variant="secondary"
+            style={{ height: '1.5rem', width: '1.5rem' }}
+          />
+        </div>
+      );
+    }
+
+    if (showCheck && !showSpinner) {
+      bodyContent = (
+        <div>
+          {message}
+          <Icon
+            src={Check}
+            style={{ height: '1.7rem', width: '1.25rem' }}
+            className="text-success-500 d-inline-block position-fixed"
+          />
+        </div>
+      );
+    }
+    return bodyContent;
+  };
+
+  return (
+    <AlertModal
+      isOpen={showModal}
+      title={intl.formatMessage(messages.accountActivationAlertTitle)}
+      footerNode={button}
+      onClose={() => ({})}
+    >
+      {children()}
+    </AlertModal>
+  );
+};
+
+AccountActivationAlert.propTypes = {
+  intl: intlShape.isRequired,
+};
+
+export default injectIntl(AccountActivationAlert);

src/alerts/logistration-alert/LogistrationAlert.jsx

@@ -2,31 +2,38 @@ import React from 'react';
 import { getConfig } from '@edx/frontend-platform';
 import { injectIntl, intlShape, FormattedMessage } from '@edx/frontend-platform/i18n';
 import { getLoginRedirectUrl } from '@edx/frontend-platform/auth';
+import { Alert, Hyperlink } from '@openedx/paragon';
+import { WarningFilled } from '@openedx/paragon/icons';
 
-import Alert from '../user-messages/Alert';
-import messages from './messages';
+import genericMessages from '../../generic/messages';
 
-function LogistrationAlert({ intl }) {
+const LogistrationAlert = ({ intl }) => {
   const signIn = (
-    <a href={`${getLoginRedirectUrl(global.location.href)}`}>
-      {intl.formatMessage(messages['learning.logistration.login'])}
-    </a>
+    <Hyperlink
+      style={{ textDecoration: 'underline' }}
+      destination={`${getLoginRedirectUrl(global.location.href)}`}
+    >
+      {intl.formatMessage(genericMessages.signInLowercase)}
+    </Hyperlink>
   );
 
   // TODO: Pull this registration URL building out into a function, like the login one above.
   // This is complicated by the fact that we don't have a REGISTER_URL env variable available.
   const register = (
-    <a href={`${getConfig().LMS_BASE_URL}/register?next=${encodeURIComponent(global.location.href)}`}>
-      {intl.formatMessage(messages['learning.logistration.register'])}
-    </a>
+    <Hyperlink
+      style={{ textDecoration: 'underline' }}
+      destination={`${getConfig().LMS_BASE_URL}/register?next=${encodeURIComponent(global.location.href)}`}
+    >
+      {intl.formatMessage(genericMessages.registerLowercase)}
+    </Hyperlink>
   );
 
   return (
-    <Alert type="error">
+    <Alert variant="warning" icon={WarningFilled}>
       <FormattedMessage
         id="learning.logistration.alert"
         description="Prompts the user to sign in or register to see course content."
-        defaultMessage="Please {signIn} or {register} to see course content."
+        defaultMessage="To see course content, {signIn} or {register}."
         values={{
           signIn,
           register,
@@ -34,7 +41,7 @@ function LogistrationAlert({ intl }) {
       />
     </Alert>
   );
-}
+};
 
 LogistrationAlert.propTypes = {
   intl: intlShape.isRequired,

src/alerts/logistration-alert/hooks.js

@@ -0,0 +1,28 @@
+/* eslint-disable import/prefer-default-export */
+import React, { useContext } from 'react';
+import { AppContext } from '@edx/frontend-platform/react';
+import { ALERT_TYPES, useAlert } from '../../generic/user-messages';
+import { useModel } from '../../generic/model-store';
+
+const LogistrationAlert = React.lazy(() => import('./LogistrationAlert'));
+
+export function useLogistrationAlert(courseId) {
+  const { authenticatedUser } = useContext(AppContext);
+  const outline = useModel('outline', courseId);
+  const privateOutline = outline && outline.courseBlocks && !outline.courseBlocks.courses;
+  /**
+   * This alert should render if
+   *    1. the user is not authenticated, AND
+   *    2. the course is private.
+   */
+  const isVisible = authenticatedUser === null && privateOutline;
+
+  useAlert(isVisible, {
+    code: 'clientLogistrationAlert',
+    topic: 'outline',
+    dismissible: false,
+    type: ALERT_TYPES.ERROR,
+  });
+
+  return { clientLogistrationAlert: LogistrationAlert };
+}

src/alerts/logistration-alert/index.js

@@ -0,0 +1 @@
+export { useLogistrationAlert as default } from './hooks';

src/alerts/logistration-alert/messages.js

@@ -0,0 +1,11 @@
+import { defineMessages } from '@edx/frontend-platform/i18n';
+
+const messages = defineMessages({
+  accountActivationAlertTitle: {
+    id: 'account-activation.alert.title',
+    defaultMessage: 'Activate your account so you can log back in',
+    description: 'Title for account activation alert which is shown after the registration',
+  },
+});
+
+export default messages;

src/alerts/sequence-alerts/hooks.js

@@ -0,0 +1,57 @@
+import { useSelector } from 'react-redux';
+
+import { useModel } from '../../generic/model-store';
+import { ALERT_TYPES, useAlert } from '../../generic/user-messages';
+
+import messages from './messages';
+
+function useSequenceBannerTextAlert(sequenceId) {
+  const sequence = useModel('sequences', sequenceId);
+  const sequenceStatus = useSelector(state => state.courseware.sequenceStatus);
+
+  // Show Alert that comes along with the sequence
+  useAlert(sequenceStatus === 'loaded' && sequence.bannerText, {
+    code: null,
+    dismissible: false,
+    text: sequence.bannerText,
+    type: ALERT_TYPES.INFO,
+    topic: 'sequence',
+  });
+}
+
+function useSequenceEntranceExamAlert(courseId, sequenceId, intl) {
+  const course = useModel('coursewareMeta', courseId);
+  const sequence = useModel('sequences', sequenceId);
+  const sequenceStatus = useSelector(state => state.courseware.sequenceStatus);
+  const {
+    entranceExamCurrentScore,
+    entranceExamEnabled,
+    entranceExamId,
+    entranceExamMinimumScorePct,
+    entranceExamPassed,
+  } = course.entranceExamData || {};
+  const entranceExamAlertVisible = sequenceStatus === 'loaded' && entranceExamEnabled && entranceExamId === sequence.sectionId;
+  let entranceExamText;
+
+  if (entranceExamPassed) {
+    entranceExamText = intl.formatMessage(
+      messages.entranceExamTextPassed,
+      { entranceExamCurrentScore: entranceExamCurrentScore * 100 },
+    );
+  } else {
+    entranceExamText = intl.formatMessage(messages.entranceExamTextNotPassing, {
+      entranceExamCurrentScore: entranceExamCurrentScore * 100,
+      entranceExamMinimumScorePct: entranceExamMinimumScorePct * 100,
+    });
+  }
+
+  useAlert(entranceExamAlertVisible, {
+    code: null,
+    dismissible: false,
+    text: entranceExamText,
+    type: ALERT_TYPES.INFO,
+    topic: 'sequence',
+  });
+}
+
+export { useSequenceBannerTextAlert, useSequenceEntranceExamAlert };

src/alerts/sequence-alerts/messages.js

@@ -0,0 +1,14 @@
+import { defineMessages } from '@edx/frontend-platform/i18n';
+
+const messages = defineMessages({
+  entranceExamTextNotPassing: {
+    id: 'learn.sequence.entranceExamTextNotPassing',
+    defaultMessage: 'To access course materials, you must score {entranceExamMinimumScorePct}% or higher on this exam. Your current score is {entranceExamCurrentScore}%.',
+  },
+  entranceExamTextPassed: {
+    id: 'learn.sequence.entranceExamTextPassed',
+    defaultMessage: 'Your score is {entranceExamCurrentScore}%. You have passed the entrance exam.',
+  },
+});
+
+export default messages;

src/constants.js

@@ -0,0 +1,35 @@
+export const DECODE_ROUTES = {
+  ACCESS_DENIED: '/course/:courseId/access-denied',
+  HOME: '/course/:courseId/home',
+  LIVE: '/course/:courseId/live',
+  DATES: '/course/:courseId/dates',
+  DISCUSSION: '/course/:courseId/discussion/:path/*',
+  PROGRESS: [
+    '/course/:courseId/progress/:targetUserId/',
+    '/course/:courseId/progress',
+  ],
+  COURSE_END: '/course/:courseId/course-end',
+  COURSEWARE: [
+    '/course/:courseId/:sequenceId/:unitId',
+    '/course/:courseId/:sequenceId',
+    '/course/:courseId',
+  ],
+  REDIRECT_HOME: 'home/:courseId',
+  REDIRECT_SURVEY: 'survey/:courseId',
+};
+
+export const ROUTES = {
+  UNSUBSCRIBE: '/goal-unsubscribe/:token',
+  REDIRECT: '/redirect/*',
+  DASHBOARD: 'dashboard',
+  ENTERPRISE_LEARNER_DASHBOARD: 'enterprise-learner-dashboard',
+  CONSENT: 'consent',
+};
+
+export const REDIRECT_MODES = {
+  DASHBOARD_REDIRECT: 'dashboard-redirect',
+  ENTERPRISE_LEARNER_DASHBOARD_REDIRECT: 'enterprise-learner-dashboard-redirect',
+  CONSENT_REDIRECT: 'consent-redirect',
+  HOME_REDIRECT: 'home-redirect',
+  SURVEY_REDIRECT: 'survey-redirect',
+};

src/course-header/Header.jsx

@@ -1,74 +0,0 @@
-import React, { useContext } from 'react';
-import PropTypes from 'prop-types';
-import { Dropdown } from '@edx/paragon';
-import { getConfig } from '@edx/frontend-platform';
-import { AppContext } from '@edx/frontend-platform/react';
-
-import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
-import { faUserCircle } from '@fortawesome/free-solid-svg-icons';
-
-import logo from './assets/logo.svg';
-
-function LinkedLogo({
-  href,
-  src,
-  alt,
-  ...attributes
-}) {
-  return (
-    <a href={href} {...attributes}>
-      <img className="d-block" src={src} alt={alt} />
-    </a>
-  );
-}
-
-LinkedLogo.propTypes = {
-  href: PropTypes.string.isRequired,
-  src: PropTypes.string.isRequired,
-  alt: PropTypes.string.isRequired,
-};
-
-export default function Header({
-  courseOrg, courseNumber, courseTitle,
-}) {
-  const { authenticatedUser } = useContext(AppContext);
-
-  return (
-    <header className="course-header">
-      <div className="container-fluid py-2 d-flex align-items-center ">
-        <LinkedLogo
-          className="logo"
-          href={`${getConfig().LMS_BASE_URL}/dashboard`}
-          src={logo}
-          alt={getConfig().SITE_NAME}
-        />
-        <div className="flex-grow-1 course-title-lockup" style={{ lineHeight: 1 }}>
-          <span className="d-block small m-0">{courseOrg} {courseNumber}</span>
-          <span className="d-block m-0 font-weight-bold course-title">{courseTitle}</span>
-        </div>
-
-        <Dropdown className="user-dropdown">
-          <Dropdown.Button>
-            <FontAwesomeIcon icon={faUserCircle} className="d-md-none" size="lg" />
-            <span className="d-none d-md-inline">
-              {authenticatedUser.username}
-            </span>
-          </Dropdown.Button>
-          <Dropdown.Menu className="dropdown-menu-right">
-            <Dropdown.Item href={`${getConfig().LMS_BASE_URL}/dashboard`}>Dashboard</Dropdown.Item>
-            <Dropdown.Item href={`${getConfig().LMS_BASE_URL}/u/${authenticatedUser.username}`}>Profile</Dropdown.Item>
-            <Dropdown.Item href={`${getConfig().LMS_BASE_URL}/account/settings`}>Account</Dropdown.Item>
-            <Dropdown.Item href={getConfig().ORDER_HISTORY_URL}>Order History</Dropdown.Item>
-            <Dropdown.Item href={getConfig().LOGOUT_URL}>Sign Out</Dropdown.Item>
-          </Dropdown.Menu>
-        </Dropdown>
-      </div>
-    </header>
-  );
-}
-
-Header.propTypes = {
-  courseOrg: PropTypes.string.isRequired,
-  courseNumber: PropTypes.string.isRequired,
-  courseTitle: PropTypes.string.isRequired,
-};

src/course-header/assets/logo.svg

@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg width="1168px" height="540px" viewBox="0 0 1168 540" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
-    <!-- Generator: Sketch 53.2 (72643) - https://sketchapp.com -->
-    <title>logo</title>
-    <desc>Created with Sketch.</desc>
-    <g id="logo" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
-        <polygon id="Path" fill="#209FDA" fill-rule="nonzero" points="1166.81993 85.5 1166.81993 2.84217094e-14 953.759925 2.84217094e-14 953.759925 85.5 1002.17993 85.5 915.859925 191.98 829.459925 85.5 878.099925 85.5 878.099925 2.84217094e-14 718.919925 2.84217094e-14 718.919925 95.72 856.479925 265.26 718.919925 434.96 718.919925 452.02 784.499925 452.02 784.499925 539.64 878.099925 539.64 878.099925 452.02 823.919925 452.02 915.919925 338.52 915.939925 338.52 1008.03993 452.02 953.759925 452.02 953.759925 539.64 1166.81993 539.64 1166.81993 452.02 1126.85993 452.02 975.319925 265.26 1121.01993 85.5"></polygon>
-        <polygon id="Path" fill="#026BA4" fill-rule="nonzero" points="664.019925 7.10542736e-15 664.019925 85.5 710.619925 85.5 718.919925 95.72 718.919925 7.10542736e-15"></polygon>
-        <polygon id="Path" fill="#026BA4" fill-rule="nonzero" points="718.919925 452.02 718.919925 434.96 705.079925 452.02 664.019925 452.02 664.019925 539.64 784.499925 539.64 784.499925 452.02"></polygon>
-        <path d="M321.999925,411.86 L397.659925,411.86 C388.805702,433.829527 376.258024,454.122269 360.559925,471.86 C344.364089,454.216816 331.320914,433.921419 321.999925,411.86" id="Path" fill="#78212E" fill-rule="nonzero"></path>
-        <path d="M360.559925,189.28 C338.58337,213.190393 322.501981,241.908137 313.599925,273.14 C317.134915,280.039338 320.007771,287.25831 322.179925,294.7 L397.059925,294.7 C399.306706,287.354671 402.25356,280.242036 405.859925,273.46 C397.464721,242.277678 381.959326,213.464341 360.559925,189.28 Z M322.179925,294.7 C328.784599,317.438017 328.978396,341.558795 322.739925,364.4 L396.399925,364.4 C389.855554,341.597488 390.06397,317.386469 396.999925,294.7 L322.179925,294.7 Z M322.179925,294.7 L308.679925,294.7 C304.690779,317.752715 304.575868,341.309464 308.339925,364.4 L322.739925,364.4 C328.978396,341.558795 328.784599,317.438017 322.179925,294.7 L322.179925,294.7 Z" id="Shape" fill="#78212E" fill-rule="nonzero"></path>
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-    </g>
-</svg>

src/course-home/CourseDates.jsx

@@ -1,41 +0,0 @@
-import React from 'react';
-import PropTypes from 'prop-types';
-
-export default function CourseDates({
-  start,
-  end,
-  enrollmentStart,
-  enrollmentEnd,
-  enrollmentMode,
-  isEnrolled,
-}) {
-  return (
-    <section>
-      <h4>Upcoming Dates</h4>
-      <div><strong>Course Start:</strong><br />{start}</div>
-      <div><strong>Course End:</strong><br />{end}</div>
-      <div><strong>Enrollment Start:</strong><br />{enrollmentStart}</div>
-      <div><strong>Enrollment End:</strong><br />{enrollmentEnd}</div>
-      <div><strong>Mode:</strong><br />{enrollmentMode}</div>
-      <div>{isEnrolled ? 'Active Enrollment' : 'Inactive Enrollment'}</div>
-    </section>
-  );
-}
-
-CourseDates.propTypes = {
-  start: PropTypes.string,
-  end: PropTypes.string,
-  enrollmentStart: PropTypes.string,
-  enrollmentEnd: PropTypes.string,
-  enrollmentMode: PropTypes.string,
-  isEnrolled: PropTypes.bool,
-};
-
-CourseDates.defaultProps = {
-  start: null,
-  end: null,
-  enrollmentStart: null,
-  enrollmentEnd: null,
-  enrollmentMode: null,
-  isEnrolled: false,
-};

src/course-home/CourseHome.jsx

@@ -1,97 +0,0 @@
-import React from 'react';
-import PropTypes from 'prop-types';
-import { Button } from '@edx/paragon';
-
-import AlertList from '../user-messages/AlertList';
-import { Header, CourseTabsNavigation } from '../course-header';
-import { useLogistrationAlert } from '../logistration-alert';
-import { useEnrollmentAlert } from '../enrollment-alert';
-
-import CourseDates from './CourseDates';
-import Section from './Section';
-import { useModel } from '../model-store';
-
-// Note that we import from the component files themselves in the enrollment-alert package.
-// This is because Reacy.lazy() requires that we import() from a file with a Component as it's
-// default export.
-// See React.lazy docs here: https://reactjs.org/docs/code-splitting.html#reactlazy
-const { EnrollmentAlert, StaffEnrollmentAlert } = React.lazy(() => import('../enrollment-alert'));
-const LogistrationAlert = React.lazy(() => import('../logistration-alert'));
-
-export default function CourseHome({
-  courseId,
-}) {
-  useLogistrationAlert();
-  useEnrollmentAlert(courseId);
-
-  const {
-    org,
-    number,
-    title,
-    start,
-    end,
-    enrollmentStart,
-    enrollmentEnd,
-    enrollmentMode,
-    isEnrolled,
-    tabs,
-    sectionIds,
-  } = useModel('courses', courseId);
-
-  return (
-    <>
-      <Header
-        courseOrg={org}
-        courseNumber={number}
-        courseTitle={title}
-      />
-      <main className="d-flex flex-column flex-grow-1">
-        <div className="container-fluid">
-          <CourseTabsNavigation tabs={tabs} className="mb-3" activeTabSlug="courseware" />
-          <AlertList
-            topic="outline"
-            className="mb-3"
-            customAlerts={{
-              clientEnrollmentAlert: EnrollmentAlert,
-              clientStaffEnrollmentAlert: StaffEnrollmentAlert,
-              clientLogistrationAlert: LogistrationAlert,
-            }}
-          />
-        </div>
-        <div className="flex-grow-1">
-          <div className="container-fluid">
-            <div className="d-flex justify-content-between mb-3">
-              <h2>{title}</h2>
-              <Button className="btn-primary" type="button">Resume Course</Button>
-            </div>
-            <div className="row">
-              <div className="col col-8">
-                {sectionIds.map((sectionId) => (
-                  <Section
-                    key={sectionId}
-                    id={sectionId}
-                    courseId={courseId}
-                  />
-                ))}
-              </div>
-              <div className="col col-4">
-                <CourseDates
-                  start={start}
-                  end={end}
-                  enrollmentStart={enrollmentStart}
-                  enrollmentEnd={enrollmentEnd}
-                  enrollmentMode={enrollmentMode}
-                  isEnrolled={isEnrolled}
-                />
-              </div>
-            </div>
-          </div>
-        </div>
-      </main>
-    </>
-  );
-}
-
-CourseHome.propTypes = {
-  courseId: PropTypes.string.isRequired,
-};

src/course-home/CourseHomeContainer.jsx

@@ -1,54 +0,0 @@
-import React, { useEffect } from 'react';
-import PropTypes from 'prop-types';
-import { useDispatch, useSelector } from 'react-redux';
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-
-import messages from './messages';
-import PageLoading from '../PageLoading';
-import CourseHome from './CourseHome';
-import { fetchCourse } from '../data';
-
-function CourseHomeContainer(props) {
-  const {
-    intl,
-    match,
-  } = props;
-
-  const dispatch = useDispatch();
-  useEffect(() => {
-    // The courseId from the URL is the course we WANT to load.
-    dispatch(fetchCourse(match.params.courseId));
-  }, [match.params.courseId]);
-
-  // The courseId from the store is the course we HAVE loaded.  If the URL changes,
-  // we don't want the application to adjust to it until it has actually loaded the new data.
-  const {
-    courseId,
-    courseStatus,
-  } = useSelector(state => state.courseware);
-
-  return (
-    <>
-      {courseStatus === 'loaded' ? (
-        <CourseHome
-          courseId={courseId}
-        />
-      ) : (
-        <PageLoading
-          srMessage={intl.formatMessage(messages['learn.loading.outline'])}
-        />
-      )}
-    </>
-  );
-}
-
-CourseHomeContainer.propTypes = {
-  intl: intlShape.isRequired,
-  match: PropTypes.shape({
-    params: PropTypes.shape({
-      courseId: PropTypes.string.isRequired,
-    }).isRequired,
-  }).isRequired,
-};
-
-export default injectIntl(CourseHomeContainer);