course share link added

apps/course/serializers/course.py

@@ -200,6 +200,7 @@ class CourseDetailSerializer(serializers.ModelSerializer):
     features = serializers.SerializerMethodField()
     description = serializers.SerializerMethodField()
     short_description = serializers.SerializerMethodField()
+    share_link = serializers.SerializerMethodField()
 
     class Meta:
         model = Course        
@@ -237,7 +238,8 @@ class CourseDetailSerializer(serializers.ModelSerializer):
             'room_id',
             'user_transaction_status',
             'is_group_chat_locked',
-            'is_professor_chat_locked'
+            'is_professor_chat_locked',
+            'share_link'
         ]
 
     def get_room_id(self, obj):
@@ -553,6 +555,12 @@ class CourseDetailSerializer(serializers.ModelSerializer):
     def get_features(self, obj):
         return self._extract_builder_list(obj.features)
 
+    def get_share_link(self, obj):
+        from django.conf import settings
+        course_slug = self.get_slug(obj)
+        domain = getattr(settings, 'SITE_DOMAIN', '').rstrip('/')
+        return f"{domain}/courses/{course_slug}"
+