feat: add endpoint for course transcript details

edxval/api.py

@@ -733,6 +733,51 @@ def get_videos_for_course(course_id, sort_field=None, sort_dir=SortDirection.asc
     )
 
 
+def get_transcript_details_for_course(course_id):
+    """
+    Gets all the transcript for a course and bundles up data.
+
+    Args:
+        course_id (String)
+
+    Returns:
+        (dict): Returns all the edx_video_id's and related transcript details for a course
+        {
+        'edx_video_id': {
+            'lang_code': {
+                'provider': 'What the provider is',
+                'content': 'Content of the transcript',
+                'file_format': 'file format',
+                'url': 'location of the file',
+                'name': 'name of the file',
+                'size': size of the file
+            }
+        }
+    """
+    course_transcripts_data = {}
+
+    course_videos = CourseVideo.objects.filter(course_id=course_id).select_related('video')
+    for course_video in course_videos:
+
+        edx_video_id = course_video.video.edx_video_id
+        transcript_data = {}
+
+        video_transcripts = VideoTranscript.objects.filter(video=course_video.video)
+        for video_transcript in video_transcripts:
+            transcript_data[video_transcript.language_code] = {
+                'provider': video_transcript.provider,
+                'content': video_transcript.transcript.file.read(),
+                'file_format': video_transcript.file_format,
+                'url': video_transcript.transcript.url,
+                'name': video_transcript.transcript.name,
+                'size': video_transcript.transcript.size,
+            }
+
+        course_transcripts_data[edx_video_id] = transcript_data
+
+    return course_transcripts_data
+
+
 def remove_video_for_course(course_id, edx_video_id):
     """
     Soft deletes video for particular course.

edxval/tests/test_api.py

@@ -2684,6 +2684,12 @@ def setUp(self):
         self.v2_transcript1 = video_and_transcripts['transcripts']['de']
         self.v2_transcript2 = video_and_transcripts['transcripts']['zh']
 
+        # Add the videos to courses
+        self.course_id1 = 'test-course-1'
+        self.course_id2 = 'test-course-2'
+        CourseVideo.objects.create(video=self.video1, course_id=self.course_id1)
+        CourseVideo.objects.create(video=self.video2, course_id=self.course_id2)
+
         self.temp_dir = mkdtemp()
         self.addCleanup(shutil.rmtree, self.temp_dir)
 
@@ -3133,6 +3139,33 @@ def test_no_create_transcript_file(self, video_id, language_code):
         # Verify no file is created.
         self.assertEqual(file_system.listdir(constants.EXPORT_IMPORT_STATIC_DIR), [])
 
+    def test_get_transcript_details_for_course(self):
+        """
+        Verify that `get_transcript_details_for_course` api function works as expected.
+        """
+
+        course_transcript = api.get_transcript_details_for_course(self.course_id1)
+
+        self.assertEqual(course_transcript['super-soaker']['en']['provider'], TranscriptProviderType.THREE_PLAY_MEDIA)
+        self.assertIn('content', course_transcript['super-soaker']['en'])
+        self.assertEqual(course_transcript['super-soaker']['en']['file_format'], utils.TranscriptFormat.SRT)
+        self.assertIn('url', course_transcript['super-soaker']['en'])
+        self.assertIn('name', course_transcript['super-soaker']['en'])
+        self.assertIn('size', course_transcript['super-soaker']['en'])
+
+        self.assertEqual(course_transcript['super-soaker']['fr']['provider'], TranscriptProviderType.CIELO24)
+        self.assertIn('content', course_transcript['super-soaker']['fr'])
+        self.assertEqual(course_transcript['super-soaker']['en']['file_format'], utils.TranscriptFormat.SRT)
+        self.assertIn('url', course_transcript['super-soaker']['fr'])
+        self.assertIn('name', course_transcript['super-soaker']['fr'])
+        self.assertIn('size', course_transcript['super-soaker']['fr'])
+
+    def test_get_transcript_details_for_course_no_course_videos(self):
+
+        course_transcript = api.get_transcript_details_for_course('this-is-not-a-course-id')
+
+        self.assertEqual(len(course_transcript), 0)
+
 
 @ddt
 class TranscriptPreferencesTest(TestCase):

edxval/tests/test_views.py

@@ -4,6 +4,7 @@
 
 
 import json
+from unittest.mock import patch
 
 from ddt import data, ddt, unpack
 from django.urls import reverse
@@ -1101,3 +1102,33 @@ def test_update_hls_encodes_for_video(self):
         self.assertEqual(actual_encoded_video.url, expected_data['encode_data']['url'])
         self.assertEqual(actual_encoded_video.file_size, expected_data['encode_data']['file_size'])
         self.assertEqual(actual_encoded_video.bitrate, expected_data['encode_data']['bitrate'])
+
+
+class CourseTranscriptsDetailViewTest(APIAuthTestCase):
+    """
+    CourseTranscriptsDetailView Tests.
+    """
+    def setUp(self):
+        """
+        Tests setup.
+        """
+        self.base_url = 'course-transcripts'
+        super().setUp()
+
+    def test_successful_response(self):
+        """
+        Test succesful response from view
+        """
+        with patch(
+            'edxval.views.get_transcript_details_for_course'
+        ) as mock_transcript_details:
+            # Simulate a return value when the function is called.
+            mock_transcript_details.return_value = {}
+            course_id = 'course-v1:edx+1+2023_05'
+            url = reverse(self.base_url, args=[course_id])
+            response = self.client.get(url)
+
+            # Verify the function was called once with course_id
+            mock_transcript_details.assert_called_once_with(course_id)
+
+            self.assertEqual(response.status_code, status.HTTP_200_OK)

edxval/urls.py

@@ -19,6 +19,9 @@
     path('videos/missing-hls/', views.HLSMissingVideoView.as_view(),
          name='hls-missing-video'
          ),
+    path('videos/course-transcripts/<str:course_id>/', views.CourseTranscriptsDetailView.as_view(),
+         name='course-transcripts'
+         ),
     path('videos/video-transcripts/create/', views.VideoTranscriptView.as_view(),
          name='create-video-transcript'
          ),

edxval/views.py

@@ -14,7 +14,7 @@
 from rest_framework.response import Response
 from rest_framework.views import APIView
 
-from edxval.api import create_or_update_video_transcript
+from edxval.api import create_or_update_video_transcript, get_transcript_details_for_course
 from edxval.models import (
     LIST_MAX_ITEMS,
     CourseVideo,
@@ -175,6 +175,23 @@
         return response
 
 
+class CourseTranscriptsDetailView(APIView):
+    """
+    A view to get the details for all the course transcripts related to a course_id.
+    """
+    authentication_classes = (JwtAuthentication, SessionAuthentication)
+
+    def get(self, _request, course_id):
+        """
+        Returns all transcript data for a course when given a course_id.
+        """
+        if not course_id:
+            return Response(status=status.HTTP_400_BAD_REQUEST, data={'message': 'course_id param required'})
+
+        course_data = get_transcript_details_for_course(course_id)
+        return Response(status=status.HTTP_200_OK, data=course_data)
+
+
 class VideoStatusView(APIView):
     """
     A Video View to update the status of a video.