#!/usr/bin/env bash

val=$(cat /sys/class/power_supply/BAT0/capacity)
discharging=$(upower -i /org/freedesktop/UPower/devices/battery_BAT0 | grep -i "state" | grep -i "discharging" | wc -l)

if [ $val -gt 19 ]; then
    echo "(label :class \"power__text\" :text \"$val%\")"
elif [ $discharging -eq 0 ]; then
    echo "(label :class \"power__text\" :text \"$val%\")"
else
    echo "(label :class \"power__text_low\" :text \"$val%\")"
fi