adds duration_to_string to make durations pretty strings

src/bin/duration_to_string.rs

@@ -0,0 +1,42 @@
+use std::time::Duration;
+
+fn duration_to_string(to_convert: Duration) -> String {
+    let mut total_seconds = to_convert.as_secs();
+    let mut working_string = String::new();
+
+    if total_seconds > 86400 {
+        // days
+        let num_days = total_seconds / 86400;
+        working_string = format!("{} days", num_days);
+        total_seconds = total_seconds - (num_days * 86400);
+    }
+
+
+    if total_seconds > 3600 {
+        // hours
+        let num_hours = total_seconds / 3600;
+        if num_hours > 0 {
+            working_string = format!("{} {} hours", working_string, num_hours);
+            total_seconds = total_seconds - (num_hours * 3600);
+        }
+    }
+    if total_seconds > 60 {
+        let num_minutes = total_seconds / 60;
+        if num_minutes > 0 {
+            working_string = format!("{} {} minutes", working_string, num_minutes);
+            total_seconds = total_seconds - ( num_minutes * 60);
+        }
+        // minutes
+    }
+
+
+    working_string = format!("{} {} seconds.", working_string, total_seconds);
+
+    working_string
+}
+
+fn main() {
+    println!("1m 12s => {}", duration_to_string(Duration::from_secs(72)));
+    println!("1h 1m 12s => {}", duration_to_string(Duration::from_secs(3672)));
+    println!("1d 1h 1m 12s => {}", duration_to_string(Duration::from_secs(90072)));
+}