#!/bin/bash

BAT_PNT=$(upower -i "$(upower -e | grep 'battery')" | grep -E "state|to\ full|percentage" | awk '/perc/{print $2}' | cut -d % -f1 )

if [ "$BAT_PNT" -lt "20" ]; then

    if [ "$BAT_PNT" -lt "5" ]; then
        echo '{"type":"once","content":"Low Battery: 5% of battery remaining"}'
    elif [ "$BAT_PNT" -lt "10" ]; then
        echo '{"type":"once","content":"Low Battery: 10% of battery remaining"}'
    fi

else
    echo "$BAT_PNT"
fi