Update app.py

app.py

@@ -29,7 +29,7 @@ def generate_invoice(customer_name, table_number, selected_items, wishes):
         ]
         total = sum(item['price'] for item in items)
 
-        invoice = f\"\"\"\n
+        invoice = f"""
         -----------------------------------------
                     Restaurant Invoice
         -----------------------------------------
@@ -38,20 +38,28 @@ def generate_invoice(customer_name, table_number, selected_items, wishes):
         Table Number: {table_number}
         -----------------------------------------
         Items Ordered:
-        \"\"\"
+        """
         for item in items:
-            invoice += f\"- {item['name']} (${item['price']})\\n\"
+            invoice += f"- {item['name']} (${item['price']})\\n"
 
-        invoice += """
+        invoice += f"""
         -----------------------------------------
         Total Amount: ${total:.2f}
         -----------------------------------------
         Customer Wishes:
-        \"\"\"
+        """
         for wish in wishes.split(','):
-            invoice += f\"- {wish.strip()}\\n\"
+            invoice += f"- {wish.strip()}\\n"
 
         invoice += """
+        -----------------------------------------
+        Thank you for dining with us!
+        Have a great day!
+        """
+        return invoice
+    except Exception as e:
+        return f"Error generating invoice: {str(e)}"
+
         -----------------------------------------
         Thank you for dining with us!
         Have a great day!