auto suspend to protect battery

.config/ags/modules/.configuration/user_options.js

@@ -37,6 +37,7 @@ let configOptions = {
         'warnLevels': [20, 15, 5],
         'warnTitles': ["Low battery", "Very low battery", 'Critical Battery'],
         'warnMessages': ["Plug in the charger", "You there?", 'PLUG THE CHARGER ALREADY'],
+        'suspendThreshold': 3,
     },
     'brightness': {
         // Object of controller names for each monitor, either "brightnessctl" or "ddcutil" or "auto"

.config/ags/services/messages.js

@@ -45,6 +45,12 @@ async function batteryMessage() {
             break;
         }
     }
+    if(perc <= userOptions.battery.suspendThreshold) {
+        Utils.execAsync(['bash', '-c',
+                `notify-send "Suspending system" "Critical battery level (${perc}% remaining)" -u critical -a '${APP_NAME}' -t 69420 &`
+            ]).catch(print);
+        Utils.execAsync('systemctl suspend').catch(print);
+    }
 }
 
 // Run them