#!/bin/sh

#Company:   PowerCraft Technology
#Author:    Copyright Jelle de Jong <jelledejong@powercraft.nl>
#Note:      Please send me an email if you enhanced this script
#System:    Ubuntu/Debian GNU/Linux

# Did the script work for you?
# Yes
# Yes, but with some errors
# Yes, but I had to change some things
# Not at all

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.

#~ cat /sys/bus/acpi/devices/PNP0C0A\:00/power_supply\:BAT0/uevent
#~ cat /sys/class/power_supply/BAT0/charge_now
#~ lshal | grep battery
#~ xmessage "I'll shut down in 4 minutes unless you connect to AC" &

if grep -q Full /sys/class/power_supply/BAT0/status
then
    # close this script, is it not nessesary when battery is not used
    exit
fi

while true
do
    sleep 120
    if grep -q Discharging /sys/class/power_supply/BAT0/status
    then
        if [ $(cat /sys/class/power_supply/BAT0/charge_now) -le 10000 ]
        then
            zenity --warning --text="I'll shut down in 3 minutes unless you connect to AC power" &
            sleep 180
            if grep -q Discharging /sys/class/power_supply/BAT0/status
            then
                sudo shutdown -h now
            fi
        fi
    fi
done

exit

#~ if ! grep -q on-line /proc/acpi/ac_adapter/AC0/state ; then
        #~ BAT_DIR=/proc/acpi/battery/BAT0
        #~ FULL_BAT=`grep 'last full capacity' ${BAT_DIR}/info | awk '{ print $4 }'`
        #~ CUR_BAT=`grep 'remaining capacity' ${BAT_DIR}/state | awk '{ print $3 }'`
        #~ AVG=`expr $(expr ${CUR_BAT} \* 100) / ${FULL_BAT}`
#~
        #~ if [ "$AVG" -le "20" ]; then
            #~ xmessage Warning, Low Battery... $AVG &
        #~ fi
        #~ if [ "$AVG" -le "10" ]; then
            #~ xmessage "I'll shut down in 2 minutes unless you connect to AC." &
            #~ sleep 120
            #~ if ! grep -q on-line /proc/acpi/ac_adapter/AC0/state ; then
                #~ sudo shutdown -h now
            #~ fi
        #~ fi
#~ fi