From 9ef8ce61e6c1012ceef8d1c77002c90a85d669b0 Mon Sep 17 00:00:00 2001
From: Troy Sankey <tsankey@2u.com>
Date: Mon, 18 Dec 2023 18:13:03 -0800
Subject: [PATCH] feat: wrap new course_not_started_enterprise_learner in a
 SettingToggle

ENT-8078
---
 lms/djangoapps/courseware/access_utils.py      |  8 +++++---
 lms/djangoapps/courseware/tests/test_access.py |  1 +
 lms/djangoapps/courseware/tests/test_views.py  |  1 +
 lms/envs/common.py                             | 13 +++++++++++++
 4 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/lms/djangoapps/courseware/access_utils.py b/lms/djangoapps/courseware/access_utils.py
index d001b48c8b..dd2f8d8f6d 100644
--- a/lms/djangoapps/courseware/access_utils.py
+++ b/lms/djangoapps/courseware/access_utils.py
@@ -9,6 +9,7 @@ from logging import getLogger
 
 from crum import get_current_request
 from django.conf import settings
+from edx_toggles.toggles import SettingToggle
 from enterprise.models import EnterpriseCourseEnrollment, EnterpriseCustomerUser
 from pytz import UTC
 
@@ -137,9 +138,10 @@ def check_start_date(user, days_early_for_beta, start, course_key, display_error
 
         # Before returning a StartDateError, determine if the learner should be redirected to the enterprise learner
         # portal by returning StartDateEnterpriseLearnerError instead.
-        request = get_current_request()
-        if request and enterprise_learner_enrolled(request, user, course_key):
-            return StartDateEnterpriseLearnerError(start, display_error_to_user=display_error_to_user)
+        if SettingToggle('COURSEWARE_COURSE_NOT_STARTED_ENTERPRISE_LEARNER_ERROR', default=False).is_enabled():
+            request = get_current_request()
+            if request and enterprise_learner_enrolled(request, user, course_key):
+                return StartDateEnterpriseLearnerError(start, display_error_to_user=display_error_to_user)
 
         return StartDateError(start, display_error_to_user=display_error_to_user)
 
diff --git a/lms/djangoapps/courseware/tests/test_access.py b/lms/djangoapps/courseware/tests/test_access.py
index b4101a94d8..e89b4f6c4b 100644
--- a/lms/djangoapps/courseware/tests/test_access.py
+++ b/lms/djangoapps/courseware/tests/test_access.py
@@ -903,6 +903,7 @@ class CourseOverviewAccessTestCase(ModuleStoreTestCase):
     )
     @ddt.unpack
     @patch.dict('django.conf.settings.FEATURES', {'DISABLE_START_DATES': False, 'ENABLE_ENTERPRISE_INTEGRATION': True})
+    @override_settings(COURSEWARE_COURSE_NOT_STARTED_ENTERPRISE_LEARNER_ERROR=True)
     def test_course_catalog_access_num_queries_enterprise(self, user_attr_name, course_attr_name):
         """
         Similar to test_course_catalog_access_num_queries_no_enterprise, except enable enterprise features and make the
diff --git a/lms/djangoapps/courseware/tests/test_views.py b/lms/djangoapps/courseware/tests/test_views.py
index 6d991d181e..8b7667ec27 100644
--- a/lms/djangoapps/courseware/tests/test_views.py
+++ b/lms/djangoapps/courseware/tests/test_views.py
@@ -3257,6 +3257,7 @@ class AccessUtilsTestCase(ModuleStoreTestCase):
     )
     @ddt.unpack
     @patch.dict('django.conf.settings.FEATURES', {'DISABLE_START_DATES': False, 'ENABLE_ENTERPRISE_INTEGRATION': True})
+    @override_settings(COURSEWARE_COURSE_NOT_STARTED_ENTERPRISE_LEARNER_ERROR=True)
     def test_is_course_open_for_learner(
         self,
         start_date_modifier,
diff --git a/lms/envs/common.py b/lms/envs/common.py
index ed8d520660..58eeac2d60 100644
--- a/lms/envs/common.py
+++ b/lms/envs/common.py
@@ -4677,6 +4677,19 @@ DATA_CONSENT_SHARE_CACHE_TIMEOUT = 8 * 60 * 60  # 8 hours
 ENTERPRISE_MARKETING_FOOTER_QUERY_PARAMS = {}
 ENTERPRISE_TAGLINE = ''
 
+# .. toggle_name: COURSEWARE_COURSE_NOT_STARTED_ENTERPRISE_LEARNER_ERROR
+# .. toggle_implementation: SettingToggle
+# .. toggle_default: False
+# .. toggle_description: If disabled (False), this switch causes the CourseTabView API (or whatever else calls
+#    check_course_open_for_learner()) to always return the legacy `course_not_started` error code in ALL cases where the
+#    course has not started.  If enabled (True), the API will respond with `course_not_started_enterprise_learner` in a
+#    subset of cases where the learner is enrolled via subsidy, and `course_not_started` in all other cases.
+# .. toggle_use_cases: temporary
+# .. toggle_creation_date: 2023-12-18
+# .. toggle_target_removal_date: 2023-12-19
+# .. toggle_tickets: ENT-8078
+COURSEWARE_COURSE_NOT_STARTED_ENTERPRISE_LEARNER_ERROR = False
+
 ############## Settings for Course Enrollment Modes ######################
 # The min_price key refers to the minimum price allowed for an instance
 # of a particular type of course enrollment mode. This is not to be confused