modularize

src/uptime.rs

@@ -0,0 +1,42 @@
+use std::fs::File;
+use std::io::{self, BufRead};
+use std::path::Path;
+
+pub fn get_system_uptime() -> Result<String, io::Error> {
+    let path = Path::new("/proc/uptime");
+    let file = File::open(path)?;
+    let reader = io::BufReader::new(file);
+
+    let line = reader
+        .lines()
+        .next()
+        .ok_or_else(|| io::Error::new(io::ErrorKind::Other, "Failed to read uptime"))??;
+
+    let uptime_seconds: f64 = line
+        .split_whitespace()
+        .next()
+        .ok_or_else(|| io::Error::new(io::ErrorKind::Other, "Failed to parse uptime"))?
+        .parse()
+        .map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))?;
+
+    // calculate days, hours, and minutes
+    let total_minutes = (uptime_seconds / 60.0).round() as u64;
+    let days = total_minutes / (60 * 24);
+    let hours = (total_minutes % (60 * 24)) / 60;
+    let minutes = total_minutes % 60;
+
+    let mut parts = Vec::new();
+    if days > 0 {
+        parts.push(format!("{} days", days));
+    }
+
+    if hours > 0 || days > 0 {
+        parts.push(format!("{} hours", hours));
+    }
+
+    if minutes > 0 || hours > 0 || days > 0 {
+        parts.push(format!("{} minutes", minutes));
+    }
+
+    Ok(parts.join(", "))
+}