Update app.py

app.py

@@ -134,6 +134,74 @@ syllabus_topics = {
 }
 
 # ---------- 4. Generate Practice Questions (Customizable) ----------
+def generate_sample_questions(grade_level, topic, num_questions=10):
+    """Fallback: Generate sample questions locally when AI is unavailable"""
+    samples = {
+        "Integers & Operations": [
+            "Q1. Calculate the sum of -20 and -15.",
+            "Q2. A farmer bought 40 oranges and then sold 25 of them. What is the difference between the number of oranges bought and sold?",
+            "Q3. Simplify: 36 - (-10) + 5. Q10. Find the value of -2(8) + 15.",
+            "Q11. A car is parked at -10 meters. If it moves up a slope of 15 meters, what is its final position?",
+            "Q12. Calculate the product of -4 and 5.",
+            "Q13. A boat descends 12 meters below sea level, then rises 8 meters. What is its final position relative to sea level?",
+            "Q16. Simplify: 2(-3) + 5(-2).",
+            "Q17. A rabbit hops 7 meters forward and then 4 meters backward. What is the net distance covered by the rabbit?",
+            "Q18. Calculate the value of 2/3(-18) + 5.",
+            "Q19. A plane descends 300 meters and then ascends 200 meters. What is the plane's final position relative to the initial descent point?",
+        ],
+        "Fractions - Addition & Subtraction": [
+            "Q1. Add 1/4 and 1/3.",
+            "Q2. Subtract 2/5 from 3/5.",
+            "Q3. What is 1/2 + 1/4 + 1/8?",
+            "Q4. Calculate 7/8 - 1/4.",
+            "Q5. Find the sum of 2/3 and 1/6.",
+            "Q6. Subtract 3/10 from 9/10.",
+            "Q7. Add 1/5, 2/5, and 1/5.",
+            "Q8. What is 5/6 - 1/3?",
+            "Q9. Calculate 3/4 + 2/8.",
+            "Q10. Find 11/12 - 1/4.",
+        ],
+        "Decimals & Percentages": [
+            "Q1. Convert 0.25 to a percentage.",
+            "Q2. What is 25% of 80?",
+            "Q3. Convert 3/4 to a decimal.",
+            "Q4. Calculate 15% of 200.",
+            "Q5. What decimal is equivalent to 60%?",
+            "Q6. Find 10% of 450.",
+            "Q7. Convert 0.875 to a percentage.",
+            "Q8. What is 50% of 64?",
+            "Q9. Calculate 30% of 150.",
+            "Q10. Convert 45% to a decimal.",
+        ],
+        "Geometry - Angles & Properties": [
+            "Q1. What is the sum of angles in a triangle?",
+            "Q2. If one angle of a triangle is 60° and another is 50°, find the third angle.",
+            "Q3. What are the properties of a rectangle?",
+            "Q4. Calculate the perimeter of a square with side 5 cm.",
+            "Q5. What is the sum of angles in a quadrilateral?",
+            "Q6. If two angles are complementary, and one is 35°, what is the other?",
+            "Q7. Define a right angle.",
+            "Q8. What is the area of a triangle with base 8 cm and height 6 cm?",
+            "Q9. Calculate the perimeter of a rectangle with length 10 cm and width 6 cm.",
+            "Q10. What are supplementary angles?",
+        ],
+    }
+    
+    # Use sample questions for the given topic, or create generic ones
+    topic_key = None
+    for key in samples:
+        if key.lower() in topic.lower() or topic.lower() in key.lower():
+            topic_key = key
+            break
+    
+    if topic_key:
+        qs = samples[topic_key][:num_questions]
+    else:
+        qs = [f"Q{i+1}. Sample question {i+1} on {topic}." for i in range(num_questions)]
+    
+    return "\n\n".join(qs)
+
+
 def generate_practice_questions(grade_level, topic, num_questions=10):
     """Generate multiple questions with robust text parsing (not JSON)"""
     
@@ -157,6 +225,10 @@ Each question should be:
 Start immediately with Q1. Do not include any introduction or explanation."""
     
     response, source = ask_ai(prompt, temperature=0.6)
+    
+    # Fallback: if AI fails, generate sample questions locally
+    if "All AI services failed" in response or response.startswith("⚠️"):
+        response = generate_sample_questions(grade_level, topic, num_questions)
 
     # Parse questions robustly using regex to support multi-digit numbers (Q1..Q10..)
     questions = []