Update main.py

main.py

@@ -674,6 +674,7 @@ def _generate_ai_questions(subject_name, topic_name, num_questions):
     AI fallback: generate questions on the fly when bank is empty.
     Returns list of question docs (not stored unless you decide to).
     """
+    # FIX: Double curly braces {{ }} used for the JSON example so Python doesn't crash.
     prompt = f"""
 You are a Zimbabwean exam coach preparing practice questions.
 
@@ -691,11 +692,16 @@ Each question must have:
 - difficulty: "easy", "medium", or "hard"
 
 Return a JSON object:
-{"questions": [ ... ]}
+{{ "questions": [ ... ] }}
 """
-    raw = send_gemini_text(prompt)
+    # FIX: Added json_mode=True (if you implemented the helper in the previous step)
+    # OR simple text generation:
+    raw = send_gemini_text(prompt) 
+    
     try:
-        data = json.loads(raw)
+        # FIX: Clean markdown before parsing
+        raw_clean = raw.replace("```json", "").replace("```", "").strip()
+        data = json.loads(raw_clean)
         return data.get("questions", [])
     except Exception:
         logger.error("Failed to parse AI-generated questions, raw response:")