fix bat monitor

modules/desktop-environment/home/eww/configDir/scripts/bat.nu

@@ -15,15 +15,41 @@ const ICONS = [
   [ 󰁹 󰂅 ]
 ];
 
+const DELAY = 2sec;
+
+def "main auto" [] {
+  loop {
+    let paths = ls "/sys/class/power_supply"
+      | each {|it| $it.name | path basename}
+      | filter {|it| $it starts-with "BAT"};
+    
+    if ($paths | is-not-empty) {
+      let result = $paths
+        | each {|it| get_and_format $it}
+        | prepend ""
+        | str join "|";
+
+      print $result
+    } else {
+      print ""
+    }
+    sleep $DELAY;
+  }
+}
+
 def main [ path: string ] {
   loop {
+    print (get_and_format $path)
+    sleep $DELAY;
+  }
+}
+
+def get_and_format [ path: string ] {
     let fract = get_bat_charge_fraction $path;
     let is_charging = get_bat_charging_status $path;
     let percent = ($fract * 100) | math round;
-
-    print $"<span foreground=\"#d65d0e\">(get_bat_icon $fract $is_charging)</span> ($percent)<span foreground=\"#7c6f64\">%</span>";
-    sleep 2sec;
-  }
+  
+    return $"<span foreground=\"#d65d0e\">(get_bat_icon $fract $is_charging)</span> ($percent)<span foreground=\"#7c6f64\">%</span>";
 }
 
 def get_bat_charge_fraction [