init

src/util/mod.rs

@@ -0,0 +1 @@
+pub mod time;

src/util/time.rs

@@ -0,0 +1,19 @@
+pub fn parse_time_to_seconds(s: &str) -> Option<i64> {
+    let parts: Vec<_> = s.split(':').collect();
+    match parts.len() {
+        2 => {
+            // MM:SS
+            let minutes: i64 = parts[0].parse().ok()?;
+            let seconds: i64 = parts[1].parse().ok()?;
+            Some(minutes * 60 + seconds)
+        }
+        3 => {
+            // HH:MM:SS
+            let hours: i64 = parts[0].parse().ok()?;
+            let minutes: i64 = parts[1].parse().ok()?;
+            let seconds: i64 = parts[2].parse().ok()?;
+            Some(hours * 3600 + minutes * 60 + seconds)
+        }
+        _ => None,
+    }
+}