Update app.py

app.py

@@ -73,20 +73,31 @@ def extract_text_from_excel(excel_bytes):
     except Exception as e:
         return f"❌ Error reading Excel: {str(e)}"
 
-def answer_question_from_document(file: UploadFile, question: str):
+def answer_question_from_document(file, question: str):
     print("📂 Processing document for QA...")
-    validation_error = validate_file_type(file)
-    if validation_error:
-        return validation_error
     
-    file_ext = file.filename.split(".")[-1].lower()
-    file_bytes = file.file.read()
+    # Ensure file is not None
+    if not file:
+        return "❌ No file uploaded."
+    
+    ext = file.name.split(".")[-1].lower()
+    print(f"🔍 Validating file type: {ext}")
+    if ext not in ALLOWED_EXTENSIONS:
+        return f"❌ Unsupported file format: {ext}"
+    
+    # Read file contents
+    try:
+        with open(file.name, "rb") as f:
+            file_bytes = f.read()
+    except Exception as e:
+        return f"❌ Error reading file: {str(e)}"
 
-    if file_ext == "pdf":
+    # Extract text based on file type
+    if ext == "pdf":
         text = extract_text_from_pdf(file_bytes)
-    elif file_ext in ["docx", "pptx"]:
+    elif ext in ["docx", "pptx"]:
         text = extract_text_with_tika(file_bytes)
-    elif file_ext == "xlsx":
+    elif ext == "xlsx":
         text = extract_text_from_excel(file_bytes)
     else:
         return "❌ Unsupported file format!"