#!/bin/sh
# Copyright (c) 2007, Sofian Brabez <sbrabez@gmail.com>, <sbz@gcu.info>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer
#    in this position and unchanged.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. The name(s) of the author(s) may not be used to endorse or promote
#    products derived from this software without specific prior written
#    permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# $Id$ - get the remaining time before shutdown to use it in screen
#

OS=$(uname|tr A-Z a-z)

case $OS in

  freebsd)
    RATE=$(sysctl hw.acpi.battery.life|cut -d':' -f2|sed s/\ //)
    TEMP=$(sysctl hw.acpi.thermal.tz0.temperature|cut -d':' -f2|sed s/\ //)
  ;;

  linux)
    BATTERY_STATE="/proc/acpi/battery/BAT0/state"
    BATTERY_INFO="/proc/acpi/battery/BAT0/info"
    CAPACITY=$(cat $BATTERY_INFO|grep 'last full capacity:'|cut -d: -f2 |sed s/mWh//g) 
    REMAINING=$(cat $BATTERY_STATE|grep 'remaining capacity:'|cut -d: -f2 |sed s/mWh//g)

    RATE=$(echo $REMAINING/$CAPACITY*100 | bc -l|tr '.' ',')
  ;;

esac
    
printf "%.01f %%" $RATE
echo -n " temp: $TEMP "