#!/bin/bash

icon=""
percent="$(upower -d | grep 'percentage' | awk '{print $2}' | head -n 1)"
remaining="$(upower -d | grep 'time to empty' | awk -F: '{print $2}' | awk '{print $1,$2}' | head -n 1)"

if [ -n "$remaining" ] && [ "$(echo "$percent" | awk -F% '{print $1}')" -lt 5 ]; then
    notify-send "CHARGE BATTERY"
    for file in /dev/pts/*; do
        if [ "$(ls -l "$file" | awk '{print $5}')" = '136,' ]; then
            echo "CHARGE BATTERY" >> "$file"
        fi
    done
fi

echo "${icon} ${percent} (${remaining})"