Refactor sessions management

src/utils/mod.rs

@@ -1 +1,2 @@
-pub mod err;
+pub mod err;
+pub mod time;

src/utils/time.rs

@@ -0,0 +1,6 @@
+use std::time::{SystemTime, UNIX_EPOCH};
+
+/// Get the current time since epoch
+pub fn time() -> u64 {
+    SystemTime::now().duration_since(UNIX_EPOCH).unwrap().as_secs()
+}