#! /bin/bash
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-power/acpid/files/acpid-1.0.4-default.sh,v 1.1 2005/03/15 19:15:53 ciaranm Exp $

# Default acpi script that takes an entry for all actions
# Hacked by Jaco Kroon <jaco@kroon.co.za>

group=${1/\/*/}
action=${1/*\//}
acpi_dev=${2}
event_code=${3}
seq_number=${4}

logger "ACPI group='${group}', action='${action}', dev=${acpi_dev}, ev=${event_code}, num=${seq_number}"

function allusers() {
	scriptname="${1}"
	shift
	
	while [[ $# != 0 ]]; do
		params=" '${1}'"
		shift
	done

	echo "${scriptname}${params}"

	for u in $(who | awk '{ print $1 }' | sort -u); do
		uhome=$(getent passwd ${u} | awk -F: '{ print $6 }')
		logfile="${uhome}/.acpi/log"

		if [ -x "${uhome}/.acpi/${scriptname}" ]; then
#			logger "Executing ${scriptname} for ${u}"
			echo "==== $(date '+%Y-%m-%d %H:%M:%S'): ${scriptname}${params} ====" >> ${logfile}
			su - "$u" -c "'${uhome}/.acpi/${scriptname}'${params}" 2>&1 >> "${logfile}"
		fi
	done
}

case "$group" in
	button)
		case "$action" in
			power)
				allusers power
				[ ! -f /var/lock/acpi_power ] && /sbin/init 0
				;;
			lid)
				state=$(awk '{ print $2 }' < /proc/acpi/button/lid/LID/state)

				logger "Lid is now $state"
				
				allusers lid $state

				# Suspend to RAM if the system is idle.  Note that if the system
				# just happens to be overly busy over the last minute (user scripts above?)
				# then this may fail.  So possibly drop the minute check and only look
				# at the 5-minute period or change it so that if either of them is < 0.1
				[ "$state" == "closed" ] && \
					uptime | sed -r -e 's/^.*average: (.*), (.*), (.*)$/\1 \2 \3/' \
					| awk '{ if($1 < 0.1 && $2 < 0.2) system("/usr/local/sbin/restabit --mem"); }'
				;;
			*)	
				logger "ACPI button/$action is not defined"
				;;
		esac
		;;
	*)
		logger "ACPI group $group / action $action is not defined"
		;;
esac