#!/usr/bin/python
"""
This is an older program which was part of my
first attempts with python and OWFS. Like some of the others
I no longer use it but it is included for you to examine if you wish.

 Copyright (c) 2010 Norman Elliott. All rights reserved.
 This program or module 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 2 of the License, or
 version 3 of the License, or (at your option) any later version. It is
 provided and 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.
"""
import os
import sys
import subprocess

basedir = os.path.expanduser("~")

buttondir = basedir + "/button"
wiredir = basedir + "/1-wire"
try:
	os.system("clear")
except ValueError:
	print "Houston we have a problem with permissions"
print "                Setting up your ibutton"
try:
	os.mkdir( buttondir)
	print "\nmaking Button directory"
except OSError, e:
	if e.errno == 17 and os.path.isdir(buttondir):
		print "\nButton directory exists"
	else:
		raise

try:
	os.mkdir( wiredir)
	print "\nmaking wire directory"
except OSError, e:
	if e.errno == 17 and os.path.isdir(wiredir):
		print "\n1-wire directory exists"
	else:
		raise

print "\nDirectories in place so now checking if owfs is running\n"


procdir = buttondir + "/process.txt"

while True:
	try:
		os.system("ps ax" ">$HOME/button/process.txt")
		break
	except ValueError:
		print"\nCannot get process list\n"
found = 0
fo = open(procdir, 'r')

for line in fo:
	p = line
	q = p.find("owfs")
	if q != -1 :
		found = 1
			
if found == 1:
	print "owfs is already running"
else:
	print "Starting owfs\n"
	while True:
		try:
			os.system("/opt/owfs/bin/owfs " "--allow_other " "-C " "-u " "-m " "$HOME/1-wire")
			break
		except ValueError:
			print"\nCannot start owfs\n"

print "\nFinding your ibutton\n and creating the config file for it"
directory = basedir + "/1-wire"
buttonconfig = basedir + "/button/mybutton.cfg"
bf=open(buttonconfig, 'w')
for name in os.listdir(directory):
	if os.path.isdir(os.path.join(directory, name)):
		if name[0:2] == "21":
			print "\n\033[34m>  Found ibutton " + name  + "  <\033[0m\n"
			bf.write(name)


bf.close()