Update app.py

app.py

@@ -12,6 +12,12 @@ EXAM_PASSING_SCORE = os.getenv("EXAM_PASSING_SCORE") or 0.7
 
 ds = load_dataset(EXAM_DATASET_ID, split="train")
 
+CERTIFIED_USERS_FILENAME = "certified_users.csv"
+CERTIFIED_USERS_DIR = "certificates"
+repo = Repository(
+    local_dir=CERTIFIED_USERS_DIR, clone_from=DATASET_REPO_URL, use_auth_token=HF_TOKEN
+)
+
 # Convert dataset to a list of dicts and randomly sort
 quiz_data = ds.to_pandas().to_dict("records")
 random.shuffle(quiz_data)
@@ -55,6 +61,24 @@ def on_user_logged_in(token: gr.OAuthToken | None):
             None,  # no token
         ]
 
+def add_certified_user(hf_username, pass_percentage, submission_time):
+  """
+  Add the certified user to the database
+  """
+  print("ADD CERTIFIED USER")
+  repo.git_pull()
+  history = pd.read_csv(os.path.join(CERTIFIED_USERS_DIR, CERTIFIED_USERS_FILENAME))
+
+  # Check if this hf_username is already in our dataset:
+  check = history.loc[history['hf_username'] == hf_username]
+  if not check.empty:
+    history = history.drop(labels=check.index[0], axis=0)
+  
+  new_row = pd.DataFrame({'hf_username': hf_username, 'pass_percentage': pass_percentage, 'datetime': submission_time}, index=[0])
+  history = pd.concat([new_row, history[:]]).reset_index(drop=True)
+    
+  history.to_csv(os.path.join(CERTIFIED_USERS_DIR, CERTIFIED_USERS_FILENAME), index=False)
+  repo.push_to_hub(commit_message="Update certified users list")
 
 def push_results_to_hub(user_answers, token: gr.OAuthToken | None):
     """
@@ -91,9 +115,18 @@ def push_results_to_hub(user_answers, token: gr.OAuthToken | None):
         }
     )
     new_ds.push_to_hub(repo_id=repo_id, split=user_info["name"])
+
+    # I'm adding a csv version
+    # The idea, if the user passed, we create a simple row in a csv
+    print("ADD CERTIFIED USER")
+    # Add this user to our database
+    add_certified_user(user_info["name"], grade, submission_time)
+    
     return f"Your responses have been submitted to the Hub! Final grade: {grade:.1%}"
 
 
+
+
 def handle_quiz(question_idx, user_answers, selected_answer, is_start):
     """
     Handle quiz state transitions and store answers