Refactored returns in functions. Fixed displaying components when not all fields are filled

app.py

@@ -19,13 +19,13 @@ current_question_index = 0
 answers_log = []  # Log for saving answers
 
 
-def load_questions(model, book):
+def load_questions(model, book, student_name, class_name):
     global questions_data, current_question_index
     current_question_index = 0
     answers_log.clear()
 
-    if not model or not book:
-        return "Будь ласка, оберіть модель і книгу.", []
+    if not model or not book or not student_name or not class_name:
+        return "# Будь ласка, заповніть усі поля!", []
 
     model_path = MODELS_PATH[model]
     book_filename = BOOKS[book]
@@ -67,8 +67,14 @@ def get_next_question(selected_answer):
     else:
         # All questions are completed — ask for feedback
         question_text = "Дякуємо за участь у тесті! Залиште, будь ласка, свій відгук і оцініть тест."
-        return question_text, gr.update(visible=False), gr.update(visible=False), gr.update(visible=True), gr.update(
-            visible=True), gr.update(visible=True)
+        return (
+            question_text,  # question_radio
+            gr.update(visible=False),  # answer_radio
+            gr.update(visible=False),  # next_button
+            gr.update(visible=True),  # feedback_input
+            gr.update(visible=True),  # rating_slider
+            gr.update(visible=True)  # submit_feedback_button
+        )
 
 
 def summarize_results(student_name, class_name, model, book, feedback, rating):
@@ -93,7 +99,12 @@ def summarize_results(student_name, class_name, model, book, feedback, rating):
         f"## Оцінка за 12-бальною шкалою: {grade_12:.2f}\n\n"
     )
 
-    return summary, gr.update(visible=False, value=""), gr.update(visible=False, value=0), gr.update(visible=False)
+    return (
+        summary,  # question_output
+        gr.update(visible=False, value=""),  # feedback_input
+        gr.update(visible=False, value=0),  # rating_slider
+        gr.update(visible=False)  # submit_feedback_button
+    )
 
 
 with gr.Blocks() as demo:
@@ -107,7 +118,7 @@ with gr.Blocks() as demo:
 
         load_button = gr.Button("Завантажити питання")
         question_output = gr.Markdown(label="Питання")
-        answer_radio = gr.Radio([], label="Варіанти відповіді", interactive=True)
+        answer_radio = gr.Radio([], label="Варіанти відповіді", interactive=True, visible=False)
         next_button = gr.Button("Наступне питання", visible=False)
 
         feedback_input = gr.Textbox(label="Ваш відгук про тест", visible=False)
@@ -116,9 +127,16 @@ with gr.Blocks() as demo:
 
 
         def update_question(model, book):
-            question, answers = load_questions(model, book)
-            return question, gr.update(choices=answers, interactive=True, visible=True), gr.update(
-                visible=True), gr.update(visible=False), gr.update(visible=False), gr.update(visible=False)
+            question, answers = load_questions(model, book, student_name_input, class_name_input)
+            is_field_filled = len(answers) > 0
+            return (
+                question,  # question_output
+                gr.update(choices=answers, interactive=True, visible=is_field_filled),  # answer_radio
+                gr.update(visible=is_field_filled),  # next_button
+                gr.update(visible=False),  # feedback_input
+                gr.update(visible=False),  # rating_slider
+                gr.update(visible=False)  # submit_feedback_button
+            )
 
 
         load_button.click(