feat: add course waffle flag for learner assistant (#32657)

openedx/core/djangoapps/courseware_api/serializers.py

@@ -114,6 +114,7 @@ class CourseInfoSerializer(serializers.Serializer):  # pylint: disable=abstract-
     linkedin_add_to_profile_url = serializers.URLField()
     is_integrity_signature_enabled = serializers.BooleanField()
     user_needs_integrity_signature = serializers.BooleanField()
+    learning_assistant_launch_url = serializers.CharField()
 
     def __init__(self, *args, **kwargs):
         """

openedx/core/djangoapps/courseware_api/tests/test_views.py

@@ -32,6 +32,7 @@ from lms.djangoapps.courseware.models import LastSeenCoursewareTimezone
 from lms.djangoapps.courseware.tabs import ExternalLinkCourseTab
 from lms.djangoapps.courseware.tests.helpers import MasqueradeMixin
 from lms.djangoapps.courseware.toggles import (
+    COURSEWARE_LEARNING_ASSISTANT,
     COURSEWARE_MICROFRONTEND_PROGRESS_MILESTONES,
     COURSEWARE_MICROFRONTEND_PROGRESS_MILESTONES_STREAK_CELEBRATION,
 )
@@ -429,6 +430,19 @@ class CourseApiTestViews(BaseCoursewareTests, MasqueradeMixin):
         assert 'can_access_proctored_exams' in courseware_data
         assert courseware_data['can_access_proctored_exams'] == result
 
+    @ddt.data(
+        True,
+        False
+    )
+    def test_learning_assistant_launch_url(self, enabled):
+        with override_waffle_flag(COURSEWARE_LEARNING_ASSISTANT, active=enabled):
+            response = self.client.get(self.url)
+        launch_url = response.json()['learning_assistant_launch_url']
+        if enabled:
+            assert launch_url == ""
+        else:
+            assert launch_url is None
+
 
 @ddt.ddt
 class SequenceApiTestViews(MasqueradeMixin, BaseCoursewareTests):

openedx/core/djangoapps/courseware_api/views.py

@@ -41,7 +41,7 @@ from lms.djangoapps.courseware.masquerade import (
 )
 from lms.djangoapps.courseware.models import LastSeenCoursewareTimezone
 from lms.djangoapps.courseware.block_render import get_block_by_usage_id
-from lms.djangoapps.courseware.toggles import course_exit_page_is_active
+from lms.djangoapps.courseware.toggles import course_exit_page_is_active, learning_assistant_is_active
 from lms.djangoapps.courseware.views.views import get_cert_data
 from lms.djangoapps.gating.api import get_entrance_exam_score, get_entrance_exam_usage_key
 from lms.djangoapps.grades.api import CourseGradeFactory
@@ -359,6 +359,15 @@ class CoursewareMeta:
             enrollment_active = self.enrollment['is_active']
             return enrollment_active and CourseMode.is_eligible_for_certificate(enrollment_mode)
 
+    @property
+    def learning_assistant_launch_url(self):
+        """
+        Returns a URL for the learning assistant LTI launch if applicable, otherwise None
+        """
+        if learning_assistant_is_active(self.course_key):
+            return ""  # TODO: replace empty string with LTI launch URL as part of MST-1975
+        return None
+
 
 class CoursewareInformation(RetrieveAPIView):
     """
@@ -448,6 +457,7 @@ class CoursewareInformation(RetrieveAPIView):
             verified mode. Will update to reverify URL if necessary.
         * linkedin_add_to_profile_url: URL to add the effective user's certificate to a LinkedIn Profile.
         * user_needs_integrity_signature: Whether the user needs to sign the integrity agreement for the course
+        * learning_assistant_launch_url: URL for the LTI launch of a learning assistant
 
     **Parameters:**