#!/usr/bin/python
#
# Thinkpad Anti Theft Script
# Janitha Karunaratne <janitha@janitha.com>
# 
# This is made to work with Gnome Screensaver and Ts_smapi for /sys/device/platform/hdaps/position
# Change the Variables and point them to the files you want to execute to make the sounds
#
# Copyright 2008 Janitha Karunaratne <janitha@janitha.com>
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

import fileinput
import os
import time
import sys


### Variables
###############################################################################
hdaps = "/sys/devices/platform/hdaps/position"
threshold_alert = 10
threshold_alarm = 40

sound_armed = "mp3-cmdline /home/j/projects/theftalarm/bleep.mp3 -q"
sound_alert = "mp3-cmdline /home/j/projects/theftalarm/alert.mp3 -q"
sound_alarm = "mp3-cmdline /home/j/projects/theftalarm/alarm.mp3 -q -g 1000"


### Give few Seconds to Arm the Laptop
###############################################################################


os.system("gnome-screensaver-command -l")
for i in range(0, 3):
	os.system(sound_armed)
	time.sleep(1)
	
os.system(sound_alert)


### Set Defaults
###############################################################################
file = open(hdaps)
value = file.readline()
bx = int(value.partition("(")[2].partition(",")[0])
by = int(value.partition(",")[2].partition(")")[0])
print bx
print by
file.close()
x = bx
y = by


while x > bx-threshold_alarm and x < bx+threshold_alarm and y > by-threshold_alarm and y < by+threshold_alarm:
	
	time.sleep(0.05)

	# Read HDAPS values
	file = open(hdaps)
	value = file.readline()
	x = int(value.partition("(")[2].partition(",")[0])
	y = int(value.partition(",")[2].partition(")")[0])
	file.close()

	if x < bx-threshold_alert or x > bx+threshold_alert or y < by-threshold_alert or y > by+threshold_alert:
		
		diff = abs(bx-x) + abs(by-y)
		gain_diff = int((diff*100.0) / (threshold_alarm))*2
		#print "alert",gain_diff
		cmd = sound_alert + " -g " + `gain_diff`
		#print cmd		
		os.system(cmd)

	if os.popen('gnome-screensaver-command -q').readlines()[0].find("inactive") > 0:
		sys.exit(0)
	
while 1:

	if os.popen('gnome-screensaver-command -q').readlines()[0].find("inactive") > 0:
		sys.exit(0)

	print "Alarm!"
	os.system(sound_alarm)
	time.sleep(1.4)