From 6236b5d914b604efd220b96e12088c8217628df7 Mon Sep 17 00:00:00 2001
From: Arda Arslan <arda.arslan@boun.edu.tr>
Date: Mon, 18 Dec 2023 16:32:21 +0300
Subject: [PATCH 1/2] user can add semantic tag to themself

---
 project/backend/api/urls.py  |  1 +
 project/backend/api/views.py | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/project/backend/api/urls.py b/project/backend/api/urls.py
index 7b4bb1e6..eef0830e 100644
--- a/project/backend/api/urls.py
+++ b/project/backend/api/urls.py
@@ -38,4 +38,5 @@
     path('ask_question/', AskQuestion.as_view(), name='ask_question'),
     path('answer_question/', AnswerQuestion.as_view(), name='answer_question'),
     path('update_content_status/', update_content_status, name='update_content_status'),
+    path('add_user_semantic_tag/', AddUserSemanticTag.as_view(), name='add_user_semantic_tag'),
 ]
diff --git a/project/backend/api/views.py b/project/backend/api/views.py
index 45f70664..b8483c43 100644
--- a/project/backend/api/views.py
+++ b/project/backend/api/views.py
@@ -1089,4 +1089,27 @@ def update_content_status(request):
     except Exception as e:
         return Response({'message': str(e)}, status=status.HTTP_400_BAD_REQUEST)
 
+class AddUserSemanticTag(APIView):
+    authentication_classes = (TokenAuthentication,)
+    permission_classes = (IsAuthenticated,)
 
+    def post(self, request):
+        sm_tag_id = request.data.get('sm_tag_id')
+        if not sm_tag_id:
+            return Response({"error": "Semantic Tag ID is required."}, status=status.HTTP_400_BAD_REQUEST)
+        try:
+            user = BasicUser.objects.get(pk=request.user.basicuser.pk)
+        except:
+            return Response({"error": "User not found."}, status=status.HTTP_404_NOT_FOUND)
+        try:
+            sm_tag = SemanticTag.objects.get(pk=sm_tag_id)
+        except:
+            return Response({"error": "Semantic Tag not found."}, status=status.HTTP_404_NOT_FOUND)
+        
+        if user.semantic_tags.filter(pk=sm_tag_id).exists():
+            return Response({"error": "User already has this Semantic Tag."}, status=status.HTTP_400_BAD_REQUEST)
+        
+        user.semantic_tags.add(sm_tag)
+        return Response({"message": "Semantic Tag successfully added to user."}, status=status.HTTP_201_CREATED)
+    
+    
\ No newline at end of file

From 7dcebf533ce55eb5e025e3cf375a53449f369b74 Mon Sep 17 00:00:00 2001
From: Arda Arslan <arda.arslan@boun.edu.tr>
Date: Mon, 18 Dec 2023 16:41:17 +0300
Subject: [PATCH 2/2] testcase for user adding smtag written

---
 project/backend/api/tests.py | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/project/backend/api/tests.py b/project/backend/api/tests.py
index 7e62213f..1facc82f 100644
--- a/project/backend/api/tests.py
+++ b/project/backend/api/tests.py
@@ -966,3 +966,26 @@ def test_no_context_given(self):
         response = self.client.put(url, data, format='json')
 
         self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+
+class AddUserSemanticTagTestCase(TestCase):
+    def setUp(self):  
+        self.client = APIClient()
+        self.user = User.objects.create_user(id=1, email='test@example.com', username='test@example.com', first_name='User',
+                                        last_name='Test')
+        self.basic_user = BasicUser.objects.create(user=self.user, bio='Hello')
+        
+        self.basic_user_token = Token.objects.create(user=self.user)
+        
+        self.client.credentials(HTTP_AUTHORIZATION=f"Token {self.basic_user_token.key}")
+
+        self.sm_tag = SemanticTag.objects.create(
+            wid="QXXX",
+            label="Test SM Tag"
+        )
+    def test_add_user_semantic_tag(self):
+        url = reverse('add_user_semantic_tag')
+        payload = {
+            'sm_tag_id': self.sm_tag.pk,
+        }
+        response = self.client.post(url, payload, format='json')
+        self.assertEqual(response.status_code, status.HTTP_201_CREATED)
\ No newline at end of file