Create utils.rs

src/smart_contract/utils.rs

@@ -0,0 +1,9 @@
+pub fn calculate_fee(amount: Balance) -> Balance {
+    // Example fee calculation: 1% of the transaction amount
+    amount / 100
+}
+
+pub fn log_event(event: &str) {
+    // Log an event to the blockchain
+    ink_env::debug_println!("{}", event);
+}