#!/usr/pkg/bin/python
"""determine if this computer is not being actively used

   just checks the first 12 ttys and mouse atimes and returns the
   amount of time since last accessed"""

Copyright = """
    quiescent -- how long the computer has been idle
    Copyright (C) 2004  John Comeau <jc@jcomeau.com>

    This program 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
    (at your option) any later version.

    This program 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.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    """
errormessage = "Not all needed libraries found, upgrade or check path"
try:
 True # not defined in older Python releases
except:
 True, False = 1, 0
try:
 import sys, os, types, re, pwd
 sys.path.append(os.sep.join([pwd.getpwuid(os.geteuid())[5], 'lib', 'python']))
 from com.jcomeau import gpl, jclicense
except:
 try:
  sys.stderr.write("%s\n" % errormessage)
 except:
  print errormessage
 raise

# get name this program was called as
self = sys.argv[0].split(os.sep)[-1]
command = self.split('.')[0]  # chop any suffix (extension)
# now get name we gave it when we wrote it
originalself = Copyright.split()[0]

# globals and routines that should be in every program
# (yes, you could import them, but there are problems in that approach too)

def DebugPrint(*whatever):
 return False  # defined instead by pytest module, use that for debugging

# other globals, specific to this program
import time

def minutes():
 """return how many full minutes since last accessed via tty or mouse
 
    if 63 or over, return 63, as this allows other errorlevel
    ($?) bits to be used"""

 atimes = [0]  # have something in the array in case all stats fail
 for tty in range(1, 13):
  try:
   atimes.append(os.stat("/dev/tty%d" % tty)[7])
  except:
   DebugPrint("failed stat: /dev/tty%d" % tty)
   pass
 try:
  atimes.append(os.stat("/dev/mouse")[7])
 except:
  DebugPrint("failed stat: /dev/mouse")
  pass
 DebugPrint('atimes: ', atimes, 'minimum: ', min(atimes))
 minutes = int((time.time() - max(atimes)) / 60)
 DebugPrint('minutes quiescent: ', minutes)
 return min(63, minutes)

if __name__ == '__main__':
 # if this program was imported by another, the above test will fail,
 # and this following code won't be used...
 sys.exit(minutes())
else:
 # if you want something to be done on import, do it here; otherwise pass
 pass