#!/bin/sh
# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

if [ "$(id -u)" != "0" ] ; then
  echo $0 must be run as root.
  echo Did you mean to run \"sudo $(basename "$0")\"\?
  exit 1
fi

TO_REMOVE=''

write_value() {
  echo $1 > "$2"
  TO_REMOVE="$TO_REMOVE \"$2\""
}

write_time_ms () {
  write_value $1 "/var/lib/power_manager/plugged_$2"
  write_value $1 "/var/lib/power_manager/unplugged_$2"
}

write_time_ms 30000 dim_ms
write_time_ms 60000 off_ms
write_time_ms 90000 suspend_ms
write_value 0       /var/lib/power_manager/disable_idle_suspend

initctl restart powerd

cat <<EOF

Adjusted power manager settings so that machine will go to sleep
in 90 seconds.

Please do not touch the machine until it suspends.  You can tell that
a machine is suspended because its power light will start blinking

To bring machine back up after it goes to sleep, press the power
button on the keyboard.

EOF

sleep 30
echo 60 seconds remaining until suspend:  monitor should dim around now

sleep 20
echo 40 seconds remaining until suspend:  monitor should power off in 10 seconds

sleep 50
echo Machine should be back from suspend.  Undoing changes

echo cleaning up
eval rm -v $TO_REMOVE

# Belt-and-suspenders; powerd gets file notify messages on those files
initctl restart powerd