#!/bin/bash

export DISPLAY=:0
export DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/1000/bus"

# Find out which battery is the laptop's battery
BATTERY=$(acpi | grep -vwE "(unavailable)" | grep -o '[0-9]' | head -n 1)

# 1 = Charging
# 0 = Discharging
BAT_CHARGING=$1

# Filtering one more time to find the percentage of the laptop's battery level
BAT_LEVEL=$(acpi -b | grep "Battery $BATTERY" | grep -P -o '[0-9]+(?=%)')

CHARGE_FILE=/tmp/laptop-charging
DISCHARGE_FILE=/tmp/laptop-discharging

# Notification handling
if [ "$BAT_CHARGING" -eq 1 ] && [ ! -f $CHARGE_FILE ]; then
	rm $DISCHARGE_FILE
	touch $CHARGE_FILE
	/usr/bin/notify-send "Charging" "Charging battery at ${BAT_LEVEL}%" -u low -i "battery-level-50-charging-symbolic" -t 5000 -r 9991
elif [ "$BAT_CHARGING" -eq 0 ] && [ ! -f $DISCHARGE_FILE ]; then
	rm $CHARGE_FILE
	touch $DISCHARGE_FILE
	/usr/bin/notify-send "Discharging" "${BAT_LEVEL}% remaining" -u low -i "battery-level-70-symbolic" -t 5000 -r 9991
fi