#!/bin/bash
# ===========================================================================
#  idle-battery-suspend.sh — Suspend laptop only when on battery
#  Checks AC power status before suspending. If on AC power, does nothing.
#  Used by swayidle.service (systemd user service).
# ===========================================================================
# Only suspend if on battery (AC online = 0)
AC_ONLINE=$(cat /sys/class/power_supply/AC/online 2>/dev/null)
if [ "$AC_ONLINE" = "0" ]; then
    systemctl suspend-then-hibernate
fi