Add debugging msgs

fastapi_app.py

@@ -17,11 +17,11 @@ if not os.path.exists(tmp_folder):
 class GenerateRequest(BaseModel):
     topics: List[str] = Field(..., description="List of topics for MCQ generation")
     question_per_topic: int = Field(1, ge=1, le=10, description="Number of questions per topic")
-    difficulty: str = Field(
+    difficulty: Optional[DifficultyLevel] = Field(
         DifficultyLevel.MEDIUM,
         description="Difficulty level for generated questions"
     )
-    qtype: str = Field(
+    qtype: Optional[QuestionType] = Field(
         QuestionType.DEFINITION,
         description="Type of question to generate"
     )
@@ -68,10 +68,14 @@ async def mcq_gen(
 ):
     if not generator:
         raise HTTPException(status_code=500, detail="Generator not initialized")
+    
+    print("generator initialized")
 
     topic_list = [t.strip() for t in topics.split(',') if t.strip()]
     if not topic_list:
         raise HTTPException(status_code=400, detail="At least one topic must be provided")
+    
+    print("topic validated")
 
     # Validate and convert enum values
     try:
@@ -80,12 +84,16 @@ async def mcq_gen(
         valid_difficulties = [d.value for d in DifficultyLevel]
         raise HTTPException(status_code=400, detail=f"Invalid difficulty. Must be one of: {valid_difficulties}")
 
+    print("difficulty validated")
+
     try:
         qtype_enum = QuestionType(qtype.lower())
     except ValueError:
         valid_types = [q.value for q in QuestionType]
         raise HTTPException(status_code=400, detail=f"Invalid question type. Must be one of: {valid_types}")
 
+    print("question type validated")
+
     # Save uploaded PDF to temporary folder
     filename = file.filename if file.filename else "uploaded_file"
     file_path = os.path.join(tmp_folder, filename)
@@ -93,6 +101,8 @@ async def mcq_gen(
         shutil.copyfileobj(file.file, buffer)
     file.file.close()
 
+    print(f"file read and written to {file_path}")
+
     try:
         # Load and index the uploaded document
         docs, _ = generator.load_documents(tmp_folder)
@@ -100,6 +110,8 @@ async def mcq_gen(
     except Exception as e:
         raise HTTPException(status_code=500, detail=f"Document processing error: {e}")
 
+    print("loaded and indexed the document")
+
     start_time = time.time()
     try:
         mcqs = generator.generate_batch(