# 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 3 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, see <http://www.gnu.org/licenses/>.

# Sensors Module (c) Whise (Helder Fraga) 2008 <helder.fraga@hotmail.com>

import screenlets
import sys
import re
import gobject
import gettext
from datetime import datetime
import commands
import time
import os
import subprocess
import multiprocessing # for processor count
import gtk
import socket # for gethostname()
# translation stuff
gettext.textdomain('screenlets')
gettext.bindtextdomain('screenlets', screenlets.INSTALL_PREFIX +  '/share/locale')

def _(s):
	return gettext.gettext(s)


# ------------------------------------------------------------------------------
# FUNCTIONS
# ------------------------------------------------------------------------------



###########################################
#                                         #
#                 CPU                     #
#                                         #
###########################################

# calculate cpu-usage by values from /proc/stat
# (written by Helder Fraga aka Whise
def cpu_get_load (processor_number=0):
	"""Calculates the system load. Processor nr 0 is the average of all processors."""
        f = open("/proc/stat", "r")
        tmp = f.readlines(2000)
        f.close()

	if processor_number == 0 : 
            suffix = ''
	else: 
            suffix = str(processor_number - 1)
	line = tmp[processor_number]

	if line.startswith("cpu%s "% (suffix)):
                (junk, cuse, cn, csys, tail) = line.split(None, 4)
		if suffix == '':
			return (int(cuse) + int(csys) + int(cn)) / multiprocessing.cpu_count()
		else:
			return int(cuse) + int(cn)
	return None

def cpu_get_cpu_name():
	"""Returns Cpu Name"""
	try:
		f = open("/proc/cpuinfo", "r")
		tmp = f.readlines(500)
		f.close()
	except:
		print "Failed to open /proc/cpuinfo"
		return None
		list = []
	for line in tmp:
		if line.startswith("model name"):
			return line.split(':')[1].strip()
	return ''

def cpu_get_cpu_list ():
	"""Returns Cpu List"""
	try:
		f = open("/proc/stat", "r")
		tmp = f.readlines(2000)
		f.close()
	except:
		print "Failed to open /proc/stat"
		return None
	list = []
	for line in tmp:
		if line.startswith("cpu"):
			list.append(line.split(' ')[0])
			
	return list

def cpu_get_nb_cpu ():
	"""Returns Cpu Number"""
	try:
		f = open("/proc/stat", "r")
		tmp = f.readlines(2000)
		f.close()
	except:
		print "Failed to open /proc/stat"
		return None
	nb = -1 #even one processor has two lines starting with "cpu" in /proc/stat file 
	for line in tmp:
		if line.startswith("cpu"):
			nb = nb+1
	return nb

def cpu_get_current_freq():
	"""Returns Cpu frequency"""
	op = commands.getoutput('cat /proc/cpuinfo | grep "cpu MHz"')
	try:
		op = int(op.replace(" ","").split(':')[1].split('\n')[0].replace(".",""))
		return op
	except: return None

def cpu_get_current_gov(self):
	"""Returns Cpu governator"""
	try:
		op = commands.getoutput('cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor').strip()
		return op
	except: return None

def get_available_freq(self):
	"""Returns available frequencies"""
	try:
		afreqsh = open("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies", "r")
		op = afreqsh.readline().strip().split(' ')
		afreqsh.close()
		return op
	except:
		return None

def get_available_gov(self):
	"""Returns available governators"""
	try:
		afreqsh = open("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors", "r")
		op = afreqsh.readline().strip().split(' ')
		afreqsh.close()
		return op
	except:
		return None

###########################################
#                                         #
#                 System info             #
#                                         #
###########################################

# written by Hendrik Kaju
def sys_get_uptime_long ():
	"""Returns uptime extended version"""
	try:
		f = open("/proc/uptime", "r")
		data1 = f.readline(100)
		f.close()
		uptime = float( data1.split()[0] )
		days = int( uptime / 60 / 60 / 24 )
		uptime = uptime - days * 60 * 60 * 24
		hours = int( uptime / 60 / 60 )
		uptime = uptime - hours * 60 * 60
		minutes = int( uptime / 60 )
		return _("%(days)s days, %(hours)s hours and %(minutes)s minutes") % {"days":str(days), "hours":str(hours), "minutes":str(minutes)}
#		return str(days) + " days, " + str(hours) + " hours and " + str(minutes) + " minutes"
	except:
		print "Failed to open /proc/uptime"
	return 'Error'

def sys_get_uptime():
	"""Returns uptime"""
	try:
		f = open("/proc/uptime", "r")
		tmp = f.readline(100)
		f.close()
		t = tmp.split()[0]
		h = int(float(t)/3600)
		m = int((float(t)-h*3600)/60)
		if m < 10:
			return str(h)+':'+'0'+str(m)
		else:
			return str(h)+':'+str(m)
	except:
		print "Failed to open /proc/uptime"
	return 'Error'


def sys_get_username():
	"""Returns username"""
	return os.environ.get("USER")

def sys_get_hostname ():
	"""Get hostname"""
	return socket.gethostname()

# written by Hendrik Kaju
def sys_get_average_load ():
	"""Get average load (as comma-separated string)"""
	f = open("/proc/loadavg", "r")
	data = f.readline(100)
	f.close()
	data = data.rsplit(' ', 2)[0]
	data = data.replace(' ', ',')
	return data
	
def sys_get_distrib_name():
	try:
		if os.path.exists('/etc/debian_version') and str(commands.getoutput('cat /etc/lsb-release')).lower().find('ubuntu') != -1:
			return str(commands.getoutput('cat /etc/issue')).replace('\\n','').replace('\l','').replace('\r','').strip()
		elif os.path.exists('/etc/pld-release'):
			return str(commands.getoutput('cat /etc/pld-release'))
		elif os.path.exists('/etc/debian_version'):
			return 'Debian ' + str(commands.getoutput('cat /etc/debian_version'))
		elif os.path.exists('/etc/mandriva-release'):
			return 'Mandriva ' + str(commands.getoutput("cat /etc/mandriva-release | sed -e 's/[A-Za-z ]* release //'"))
		elif os.path.exists('/etc/fedora-release'):
			return 'Fedora ' + str(commands.getoutput("cat /etc/fedora-release | sed -e 's/[A-Za-z ]* release //'"))
		elif os.path.exists('/etc/SuSE-release'):

			if str(commands.getoutput('cat /etc/SuSE-release')).lower().find('openSUSE') != -1:
				return 'openSUSE ' + str(commands.getoutput("""cat /etc/SuSE-release | grep "VERSION" | sed -e 's/VERSION = //'"""))
			else:
				return 'SUSE ' + str(commands.getoutput("""cat /etc/SuSE-release | grep "VERSION" | sed -e 's/VERSION = //'"""))
		elif os.path.exists('/etc/gentoo-release'):
			return 'Gentoo ' + str(commands.getoutput("cat /etc/gentoo-release | sed -e 's/[A-Za-z ]* release //'"))
		elif os.path.exists('/etc/slackware-version'):
			return 'Slackware ' + str(commands.getoutput("cat /etc/slackware-version | sed -e 's/Slackware //'"))
		elif os.path.exists('/etc/arch-release'):
			return 'Arch Linux'
		elif os.path.exists('/etc/redhat-release'):
			return 'Redhat ' + str(commands.getoutput("cat /etc/redhat-release | sed -e 's/[A-Za-z ]* release //'"))
		else:
			f = open("/etc/issue", "r")
			tmp = f.readlines(100)
			f.close()
			return tmp[0].replace('\\n','').replace('\l','').replace('\r','').strip()
	except:
		print "Error getting distro name"
	return 'Error'


def sys_get_distroshort ():
	"""Get distro short name"""
	distros = commands.getoutput("lsb_release -is")
	return distros

def sys_get_desktop_enviroment():
	""" shows kde or gnome or xface"""
	if os.environ.get('KDE_FULL_SESSION') == 'true':
		desktop_environment = 'kde'
	elif os.environ.get('GNOME_DESKTOP_SESSION_ID'):
		desktop_environment = 'gnome'
	else:
		try:
			import commands
			info = commands.getoutput('xprop -root _DT_SAVE_MODE')
			if ' = "xfce4"' in info:
				desktop_environment = 'xfce'
		except (OSError, RuntimeError):
			pass
	return desktop_environment

def sys_get_kernel_version():
	"""Returns kernel version"""
	return os.uname()[2]

def sys_get_kde_version():
	"""Returns kde version"""
	res = commands.getstatusoutput('kde-config --version')
	if res[0]==0:
		lst = res[1].splitlines()
		for i in lst:
			if i.startswith('KDE:'):
				return i[4:].strip()
	return _("Can't get KDE version")

def sys_get_gnome_version():
	"""Returns gnome version"""
	res = commands.getstatusoutput('gnome-about --gnome-version')
	if res[0]==0:
		lst = res[1].splitlines()
		for i in lst:
			if i.startswith('Version:'):
				return i[8:].strip()
	return _("Can't get Gnome version")

def sys_get_linux_version ():
	"""Get linux version string."""
	return ' '.join(os.uname())

# TODO: return dict and parse the output of cpuinfo (function does not much yet)
def sys_get_full_info ():	
	"""Get cpu info from /proc/cpuinfo."""
	return open('/proc/cpuinfo').read()

def sys_get_window_manager():
	"""Returns window manager name"""
	root = gtk.gdk.get_default_root_window()
	try:
		ident = root.property_get("_NET_SUPPORTING_WM_CHECK", "WINDOW")[2]
		_WM_NAME_WIN = gtk.gdk.window_foreign_new(long(ident[0]))
	except TypeError, exc:
		_WM_NAME_WIN = ""

	name = ""
	win = _WM_NAME_WIN
	if (win != None):
		try:
			name = win.property_get("_NET_WM_NAME")[2]
		except TypeError, exc:

			return name

	return name

###########################################
#                                         #
#               Memory                    #
#                                         #
###########################################


def _get_meminfo():
	"""Helper function for mem_get_* functions"""
	meminfo_file = open('/proc/meminfo')
	meminfo = {}
	for l in meminfo_file:
                if l.startswith('MemTotal') or l.startswith('MemFree') or l.startswith('Cached') or l.startswith('Buffers'):
                        c = l.index(':')
                        e = l.index('kB')
			meminfo[l[:c]] = int(l[c+1:e])
		if len(meminfo) >= 4:
			break
	meminfo_file.close()
	return meminfo


def mem_get_freemem ():
	"""Get free memory."""
	meminfo = _get_meminfo()
	return (meminfo['Cached'] + meminfo['Buffers'] + meminfo['MemFree']) / 1024


def mem_get_usedmem ():
	"""Get used memory."""
	meminfo = _get_meminfo()
	return (meminfo['MemTotal'] - meminfo['Cached'] - meminfo['Buffers'] - meminfo['MemFree']) / 1024

def mem_get_usage():
	"""Returns memory usage"""
	meminfo = _get_meminfo()
	return int(round((100*(meminfo['MemTotal'] - meminfo['Cached'] - meminfo['Buffers'] - meminfo['MemFree']) / meminfo['MemTotal'] )))

def mem_get_total():
	meminfo = _get_meminfo()['MemTotal'] / 1024
	return meminfo

def _get_swapinfo():
	"""Helper function for mem_get_*swap functions"""
	meminfo_file = open('/proc/meminfo')
	meminfo = {}
	for l in meminfo_file:
                if l.startswith('SwapTotal') or l.startswith('SwapFree') or l.startswith('SwapCached'):
                        c = l.index(':')
                        e = l.index('kB')
			meminfo[l[:c]] = int(l[c+1:e])
		if len(meminfo) >= 3:
			break
	meminfo_file.close()
	return meminfo

def mem_get_usedswap():
	"""Returns used swap"""
	swapinfo = _get_swapinfo()
	if(swapinfo['SwapTotal']==0):
 		return 0
	return int(round((100*(swapinfo['SwapTotal'] - swapinfo['SwapCached'] - swapinfo['SwapFree']) / swapinfo['SwapTotal'] )))


def mem_get_totalswap():
	"""Returns total swap"""
	swapinfo = _get_swapinfo()
	if(swapinfo['SwapTotal']==0):
 		return 0
	return swapinfo['SwapTotal']/1024


###########################################
#                                         #
#               Disks                     #
#                                         #
###########################################


def disk_get_drive_info (mount_point):
	"""Returns info about the given mount point (as dict)."""
	proc = subprocess.Popen('df -h -a -P | grep ^/dev/ ', shell='true', 
		stdout=subprocess.PIPE)
	sdevs = proc.stdout.read().rsplit('\n')
	sdevs.pop()
	for stdev in sdevs:
		sdev = re.findall("(\S*)\s*", stdev)
		dev = {
			'device': sdev[0],
			'size': sdev[1],
			'used': sdev[2],
			'free': sdev[3],
			'quota': sdev[4],
			'mount': sdev[5]
		}
		if dev['mount'] == mount_point:
			return dev
	return None

def disk_get_swap ():
	"""Get a list of swap partitions."""
	try:
		f = open("/proc/swaps", "r")
		swap = f.read()
		f.close()
		swap = str(swap.split()[5:])
		swap = swap.replace("'","")
		swap = swap.replace("[","")
		swap = swap.replace("]","")
		swap = swap.replace(",","")
		return str(swap)
	except:
		print "Failed to open /proc/swaps"
	return 'Error'

def disk_get_usage(disk_disk):
	"""Returns disk usage"""
	res = commands.getoutput('df -h -a -P').splitlines()
	for i in res:
		if i.startswith('/dev/'):
			data = re.findall("(\S*)\s*", i)
			
			if (data[5] == disk_disk) or (data[0] == disk_disk):
				return data
	
def disk_get_disk_list():
	"""Returns disk list"""
	disks = []
	res = commands.getoutput('df -h -a -P').splitlines()
	for i in res:
		if i.startswith('/dev/'):
			data = re.findall("(\S*)\s*", i)
			disks.append(data[5])
	return disks


###########################################
#                                         #
#             Internet                    #
#                                         #
###########################################

def net_get_ip(): # by Whise
	"""Returns ip if it can"""
	command = 'ifconfig'
	command_path=os.popen("whereis -b "+command+" | sed 's/"+command+": //g'").readlines()
	command_string = ''.join(command_path)[:-1]
	ip = commands.getoutput("LANG=\"\" "+command_string)
	while True:
		ip = ip[ip.find("inet "):]
		if len(ip) < 7:
			break
		ip = ip[ip.find(":")+1:]
		ipc = ip[:ip.find(" ")]
		if ipc != '127.0.0.1' and ipc != None and ipc !='1': 
			return ipc

	return _('Cannot get ip')


def net_get_updown():
	"""Returns upload and download"""
	try:
		f = open("/proc/net/dev", "r")
		data = f.readlines(2000)
		f.close()
		newNetUp = 0
		newNetDown = 0
		for i in data:
			if i.find(':') != -1 and i.strip().startswith('lo:') == False:
				v = i.split(':')[1].split()
				newNetUp = float( v[8] )+newNetUp
				newNetDown = float( v[0] )+newNetDown

	
		return (newNetUp/1024), (newNetDown/1024)
	except:
		print("Can't open /proc/net/dev")
		return 0,0


def net_get_activity (device):
	"""This will return the total download and upload this
	session, as a 2-tuple with floats."""
	prefix = '%6s:' % device
	net = open('/proc/net/dev')
	for line in net:
		if line.startswith(prefix):
			data = line[7:].split()
			net.close()
			return (float(data[0]), float(data[8]))


def net_get_connections ():
	"""This will return the number of connections."""
	data = commands.getoutput("netstat -n | grep -c tcp")
	
	return data

###########################################
#                                         #
#                 Wireless                #
#                                         #
###########################################

def wir_get_interfaces():
	"""Returns wireless interfaces"""
	try:
		interfaces = []
		f = open("/proc/net/wireless")
		cards = f.read(1024)
		f.close()
		for line in cards.splitlines():
			colon = line.find(":")
			if colon > 0:
				interfaces.append(line[:colon].strip())
		return interfaces
	except:
		print("Can't open /proc/net/wireless")
		return []

def get_wireless_stats (interface):
	return wir_get_stats (interface)

def wir_get_stats (interface):
	"""Returns wireless stats as dict."""
	stats = {}
	#We're going to use 'iwconfig' to get information about wireless device
	command = 'iwconfig'
	#We need ful path, just in case user doesn't have 'iwconfig' in the search path
	command_path=os.popen("whereis -b "+command+" | sed 's/"+command+": //g'").readlines()
	#command_path is a list so it has to be converted
	command_string = ''.join(command_path)[:-1] + ' ' + interface
	iwcfd = os.popen(command_string)
	iwconfig = iwcfd.read(1024)
	iwcfd.close()
	#TODO error check in case there is no iwconfig

	command = 'ifconfig'
	command_path=os.popen("whereis -b "+command+" | sed 's/"+command+": //g'").readlines()
	command_string = ''.join(command_path)[:-1] + ' ' + interface

	ip = commands.getoutput("LANG=\"\" "+command_string)
	ip = ip[ip.find("inet"):]
	ip = ip[ip.find(":")+1:]
	ip = ip[:ip.find(" ")]
	stats['local_ip'] = ip

	essid = iwconfig[iwconfig.find('ESSID:"')+7:]
	stats['essid'] = essid[:essid.find('"')]
	if stats['essid'].strip()[:stats['essid'].strip().find("  ")] == "unassociated":
		return {"essid": _("Not connected"), "percentage": 0}
	else:
		bitrate = iwconfig[iwconfig.find("Bit Rate:")+9:]
		stats['bitrate'] = bitrate[:bitrate.find(" ")]
		quality = iwconfig[iwconfig.find("Link Quality")+13:]
		quality = quality[:quality.find(" ")]
		if quality.find("/") > 0:
			stats['quality'], stats['quality_max'] = quality.split("/")
		else:
			stats['quality'] = quality
		try:
			stats['percentage'] = int(float(stats['quality'])/float(stats['quality_max'])*100)
		except:
			return {"essid": _("Not connected"), "percentage": 0}
		signal = iwconfig[iwconfig.find("Signal level")+13:]
		stats['signal'] = signal[:signal.find("  ")]
		noise = iwconfig[iwconfig.find("Noise level")+12:]
		stats['noise'] = noise[:noise.find('\n')]
		return stats

###########################################
#                                         #
#                calendar                 #
#                                         #
###########################################


# by whise	
def cal_get_now ():
	"""Returns full now time and date"""	
	return str(datetime.now())


def cal_get_local_date ():
	"""returns date using local format"""	
	return str(datetime.now().strftime("%x"))

def cal_get_date ():
	"""returns date."""	
	return str(datetime.now().strftime("%d/%m/%Y"))

def cal_get_local_time ():
	"""returns time using local format"""	
	return str(datetime.now().strftime("%X"))

def cal_get_time ():
	"""returns time"""	
	return str(datetime.now().strftime("%H:%M:%S"))

def cal_get_time24 ():
	"""returns 24 hour time"""	
	return str(datetime.now().strftime("%R"))

def cal_get_time12 ():
	"""returns 12 hour time"""	
	return str(datetime.now().strftime("%r"))

def cal_get_year ():
	"""returns the years."""	
	return str(datetime.now().strftime("%Y"))

def cal_get_month ():
	"""returns the month"""	
	return str(datetime.now().strftime("%m"))

def cal_get_month_name ():
	"""returns the month name"""	
	return str(datetime.now().strftime("%B"))

def cal_get_day ():
	"""returns the day"""	
	return str(datetime.now().strftime("%d"))

def cal_get_day_monday ():
	"""returns the number of the day of the week starting from monday"""	
	return str(datetime.now().strftime("%u"))

def cal_get_day_sonday ():
	"""returns the number of the day of the week starting from sonday"""	
	return str(datetime.now().strftime("%w"))

def cal_get_day_name ():
	"""returns the day name"""	
	return str(datetime.now().strftime("%A"))

def cal_get_hour ():
	"""returns the hour"""	
	return str(datetime.now().strftime("%H"))

def cal_get_hour24 ():
	"""returns the hour"""	
	return str(datetime.now().strftime("%H"))

def cal_get_hour12 ():
	"""returns the hours"""	
	return str(datetime.now().strftime("%I"))

def cal_get_minute ():
	"""returns minutes"""	
	return str(datetime.now().strftime("%M"))

def cal_get_second ():
	"""returns seconds"""	
	return str(datetime.now().strftime("%S"))

def cal_get_ampm ():
	"""return am/pm or None if not available"""	
	return str(datetime.now().strftime("%p"))



###########################################
#                                         #
#               Battery                   #
#                                         #
###########################################


def bat_get_battery_list():
	"""Returns battery list"""
	try:
		path = "/proc/acpi/battery/"
		files = os.listdir(path)
		return files
	except:
		return[]
	
def bat_get_data(name):
	"""Returns battery data"""
	path = "/proc/acpi/battery/"+name+"/info"
	try:
		f = open(path)
		data = f.readlines()
		f.close()
		total = 0
		current = 0
		full = 0
		rate = 0
		state = ''
		present = True
		for line in data:
			if line.startswith('present:') and line.find('yes')==-1:
				present = False
			elif line.startswith('design capacity:'):
				total = int(line.split(':')[1].strip().split(' ')[0])
			elif line.startswith('last full capacity:'):
				full = int(line.split(':')[1].strip().split(' ')[0])
		path = "/proc/acpi/battery/"+name+"/state"
		f = open(path)
		data = f.readlines()
		f.close()
		for line in data:	
			if line.startswith('present:') and line.find('yes')==-1:
				present = False
			elif line.startswith('remaining capacity:'):
				current = int(line.split(':')[1].strip().split(' ')[0])
			elif line.startswith('charging state:'):
				state = line.split(':')[1].strip().split(' ')[0]
			elif line.startswith('present rate:'):
				rate = line.split(':')[1].strip().split(' ')[0]
		return total, current, full, state, present, rate
	except:
		return 0, 0, 0, '', False, 0

def bat_get_value(line):
	"""Returns battery value"""
	return line.split(':')[1].strip().split(' ')[0]


def bat_get_ac():
	"""Returns battery ac"""
	data = commands.getoutput("acpi -V | grep AC | sed 's/.*: //'")
	return data

###########################################
#                                         #
#                 Processes               #
#                                         #
###########################################


def process_get_list():
	"""Returns process list"""
	res = commands.getoutput('ps -eo pcpu,pmem,comm --sort pcpu').splitlines()
	l = res.__len__()
	return res,l

def process_get_top():
	"""Returns top list"""
	res = commands.getoutput('ps axo comm,user,pcpu --sort=-pcpu | head -n 10')
	
	return res



###########################################
#                                         #
#                Nvidia                   #
#                                         #
###########################################


def getGpuType():
	"""return GPU Type to its caller"""
	output = commands.getoutput("nvidia-settings -q Gpus | cut -d '(' -f 2 -s | cut -d ')' -f 1")
	return output



def getGpuRam():
	"""return GPU Ram size in MB to its caller"""
	output = commands.getoutput("nvidia-settings -q VideoRam | cut -d ':' -f 3 -s | cut -d ' ' -f 2 | cut -d '.' -f 1")
	return str(int(output)/1024) + " MB"


def getGpuDriver():
	"""return current GPU Driver version to its caller"""
	output = commands.getoutput("nvidia-settings -q NvidiaDriverVersion | cut -d ':' -f 3 -s | cut -d ' ' -f 2")
	return output


def getGpuResolution():
	"""return current screen resolution to its caller"""
	output = commands.getoutput("nvidia-settings -q FrontendResolution")
	return output[74:83].replace(",", "x")

	
def getGpuRefreshRate():
	"""return current refreshrate to its caller"""
	output = commands.getoutput("nvidia-settings -q RefreshRate | cut -d ':' -f 4 -s | cut -d ' ' -f 2 | cut -d ',' -f 1")
	return str(int(output)) + " Hz"


def getGpuClock():
	"""return current GPU Clock Frequency to its caller"""
	output = commands.getoutput("nvidia-settings -q gpuperfmodes | cut -d '=' -f 3 | cut -d ',' -f 1 -s")
	return str(output) + " MHz"

def getGpuMemClock():
	"""return current GPU Memory Clock Frequency to its caller"""
	output = commands.getoutput("nvidia-settings -q gpuperfmodes | grep 'memclock'")
	return str(output).lstrip()[9:] + " MHz"

def getGpuTemp():
	"""return current GPU Core Temperature to its caller"""
	output = commands.getoutput("nvidia-settings -q GPUCoreTemp | cut -d ':' -f 3 -s | cut -d ' ' -f 2 | cut -d '.' -f 1")
	return output


###########################################
#                                         #
#               Custom Sensors            # thanks Mathieu Villegas for you great watermark
#                                         #
###########################################


def sensors_get_sensors_list():
	res = commands.getstatusoutput('sensors')
	output = ['Custom Sensors']	
	output.remove ('Custom Sensors')
	if res[0]==0:
		sol = res[1].replace(':\n ',': ').replace(':\n\t',': ').splitlines()
		for i in sol:
			i = i.strip()
			if (i.find('\xb0')!= -1) or (i.find('\xc2')!= -1) or (i.find('temp')!= -1) or (i.find('Temp')!= -1) or (i.find(' V ')!= -1) or (i.find(' RPM ')!= -1):
				output.append(i.lstrip())#.split(')')[0]+')')
	#now look for nvidia sensors
	res = commands.getstatusoutput(' nvidia-settings -q GPUAmbientTemp | grep :')
	if res[0] == 0:
		if res[1].strip().startswith('Attribute \'GPUAmbientTemp\''):
			sol = res[1].splitlines()[0].split('):')[1].strip()
			output.append('nvidia GPU ambiant: '+str(float(sol))+' C')
	res = commands.getstatusoutput(' nvidia-settings -q GPUCoreTemp | grep :')
	if res[0] == 0:
		if res[1].strip().startswith('Attribute \'GPUCoreTemp\''):
			sol = res[1].splitlines()[0].split('):')[1].strip()
			output.append('nvidia GPU core: '+str(float(sol))+'C')	
		
		
	#recherche des senseurs ACPI
	try:
		path = "/proc/acpi/thermal_zone/"
		files = os.listdir(path)
		for entry in files:
			try:
				f = open(path+entry+'/temperature', "r")
				tmp = f.readlines(200)
				f.close()
				val = tmp[0].replace('temperature:','').replace('C','').strip()
				output.append('acpi temperature '+entry+': '+val+'C')
			except:
				print("Can't open %s/temperature" % path+entry)
	except:
		print("Can't open folder /proc/acpi/thermal_zone/")

	#recherche des senseurs IBM
	path = "/proc/acpi/ibm/thermal"
	try:
		f = open(path, "r")
		tmp = f.readlines(200)
		f.close()
		lst = tmp[0].split(' ')
		pos = 0
		for i in lst:
			i = i.strip()
			if i != '' and i != '-128':
				output.append('ibm temperature '+str(pos)+': '+i+'C')
			pos = pos+1
	except:
		print("Can't open %s" % path)
	
	path = "/proc/acpi/ibm/fan"
	try:
		f = open(path, "r")
		tmp = f.readlines(200)
		f.close()
		for i in tmp:
			if i.startswith('speed:'):
				output.append('ibm fan: '+i.split(':')[1].strip()+' RPM')
	except:
		print("Can't open %s" % path)
		
		#recherche des temperatures de disque
	res = commands.getstatusoutput("netcat 127.0.0.1 7634")
	if res[0] != 0:
		res = commands.getstatusoutput("nc 127.0.0.1 7634")
	if res[0] == 0:
		try:
			hddtemp_data = res[1].lstrip('|').rstrip('|')
			sol = hddtemp_data.split('||')
			for i in sol:
				if len(i)>1:
					lst = i.split('|')
					output.append("hddtemp sensor "+lst[0]+": "+lst[2]+" "+lst[3])
		except:
			print('Error during hddtemp drives search')
	else:
		print('Hddtemp not installed')
	return output


def sensors_get_sensor_value(sensorName):

	if sensorName.startswith('nvidia GPU ambiant'):
		res = commands.getstatusoutput(' nvidia-settings -q GPUAmbientTemp | grep :')
		if res[0] == 0:
			if res[1].strip().startswith('Attribute \'GPUAmbientTemp\''):
				#ici, je fais un str(float()) comme ca ca transforme 48. en 48.0
				return str(float(res[1].splitlines()[0].split('):')[1].strip()))+'C'
	elif sensorName.startswith('nvidia GPU core'):
		res = commands.getstatusoutput(' nvidia-settings -q GPUCoreTemp | grep :')
		if res[0] == 0:
			if res[1].strip().startswith('Attribute \'GPUCoreTemp\''):
				#ici, je fais un str(float()) comme ca ca transforme 48. en 48.0
				return str(float(res[1].splitlines()[0].split('):')[1].strip()))+'C'

	elif sensorName.startswith('acpi temperature'):
		name = sensorName.split()[2].strip()
		path = "/proc/acpi/thermal_zone/"+name+"/temperature"
		try:
			f = open(path, "r")
			tmp = f.readlines(200)
			f.close()
			val = tmp[0].replace('temperature:','').replace('C','').strip()
			
			return val+'C'
		except:
			print("can't read temperature in: %s" % path)
			return 'Error'

	elif sensorName.startswith('ibm temperature'):
		path = "/proc/acpi/ibm/thermal"
		try:
			name = sensorName
			f = open(path, "r")
			tmp = f.readlines(200)
			f.close()
			lst = tmp[0].split(' ')
			val = int(sensorName.split(' ')[2])
			return lst[val]+'C'
		except:
			print("Can't read value from %s" % path)
			return 'None'
		
	elif sensorName.startswith('ibm fan'):
		path = "/proc/acpi/ibm/fan"
		try:
			name = sensorName
			f = open(path, "r")
			tmp = f.readlines(200)
			f.close()
			for i in tmp:
				if i.startswith('speed:'):
		
					return i.split(':')[1].strip()+' RPM'
			return 'None'
		except:
			print("Can't read value from %s" % path)
			return 'None'

	elif sensorName.startswith('hddtemp sensor'):
		res = commands.getstatusoutput("netcat 127.0.0.1 7634")
		if res[0] != 0:
			res = commands.getstatusoutput("nc 127.0.0.1 7634")
		name = sensorName[sensorName.rfind(' ')+1:]
		if res[0] == 0:
			hddtemp_data = res[1].lstrip('|').rstrip('|')
			sol = hddtemp_data.split('||')
			for i in sol:
				if len(i)>1:
					if i.startswith(name):
						lst = i.split('|')
						if sensorName.startswith('hddtemp sensor-numeric'):
							return int(lst[2])
						else:
							return lst[0]+": "+lst[2]+" "+lst[3]
		else:
			print('Hddtemp not installed')
			return ''

	

		#maintenant, je recherche dans lm-sensors
	else:
		res = commands.getstatusoutput('sensors')
		if res[0] == 0:
			sol = res[1].replace(':\n ',': ').replace(':\n\t',': ').splitlines()
			for s in sol:
				s.strip()
				if s.startswith(sensorName):
					try:
						s = s.split(':')[1].strip(' ').strip('\t')
						i = 0
						while(((s[i]>='0') and (s[i]<='9')) or (s[i]=='.') or (s[i]=='+') or (s[i]=='-')):
							i = i+1
						return float(s[0:i])
					except:
						return 0









# ------------------------------------------------------------------------------
# CLASSES should not be used , calling classes from multiple screenlets instances causes erros due to gobject multiple instaces
# ------------------------------------------------------------------------------

class Sensor (gobject.GObject):
	"""A base class for deriving new Sensor-types from."""
	
	# define custom signals
	__gsignals__ = dict( \
		sensor_updated	= (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ()),
		sensor_stopped	= (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE, ()) )
	
	def __init__ (self, interval=1000):
		"""Create a new sensor which updates after the given interval."""
		gobject.GObject.__init__(self)
		self._timeout_id	= None
		self._interval		= interval
		# start sensor timeout
		self.set_interval(interval)
	
	# + public functions
	
	def get_interval (self):
		"""Get the update-interval time for this Sensor."""
		return self._interval
	
	def set_interval (self, ms):
		"""Set the update-interval time for this Sensor and start it."""
		if self._timeout_id:
			gobject.source_remove(self._timeout_id)
		if ms and ms > 10:
			self._interval		= ms
			self._timeout_id	= gobject.timeout_add(ms, self.__timeout)
			return True
		return False
	
	def stop (self):
		"""Immediately stop this sensor and emit the "sensor_stopped"-signal."""
		self.set_interval(0)
		self.emit('sensor_stopped')
	
	# + handlers to be overridden in subclasses
	
	def on_update (self):
		"""Override this handler in subclasses to implement your calculations
		and update the Sensor's attributes. Must return True to emit a signal
		which can then be handled within the screenlets, returning False
		causes the Sensor to be stopped.."""
		return True
	
	# + internals
	
	def __timeout (self):
		"""The timeout function. Does nothing but calling the on_update
		handler and emitting a signal if the handler returned True."""
		# call sensor's on_update-handler
		if self.on_update():
			self.emit('sensor_updated')			
			return True
		# on_update returned False? Stop
		self.stop()
		return False
	

class CPUSensor (Sensor):
	"""A very simple CPU-sensor."""
	
	def __init__ (self, interval=1000, cpu=0):
		"""Create a new CPUSensor which emits an 'sensor_updated'-signal after a
		given interval (default is 1000ms). The multi-cpu support is untested
		but theoretically works :)."""
		Sensor.__init__(self, interval)
		self._load 	= 0
		self._cpu	= cpu
	
	# + public functions
	
	def get_load (self):
		"""Return the current CPU-load."""
		return self._load
	
	# + internals
	
	def on_update (self, old_cuse=[0]):
		"""Called on each interval. Calculates the CPU-load and updates the
		internal load-value."""
		try:
			f = open("/proc/stat", "r")
			tmp = f.readlines(200)
			f.close()
		except:
			print "CPUSensor: Failed to open /proc/stat. Sensor stopped."
			self.stop()
		line = tmp[self._cpu + 1]
		if line[0:5] == "cpu%i " % self._cpu:
			reg = re.compile('[0-9]+')
			load_values = reg.findall(line[5:])
			# extract values from /proc/stat
			cuse = int(load_values[0])
			csys = int(load_values[2])
			load = cuse + csys - old_cuse[0]
			if load < 0: load = 0
			if load > 99: load = 99
			self._load = load
			old_cuse[0] = cuse + csys
			# return True to emit the "update_event"-signal
			return True
		return False


class MemorySensor (Sensor):
	
	def __init__ (self, interval=1000):
		"""Create a new RAMSensor which emits an 'sensor_updated'-signal after a
		given interval (default is 1000ms)."""
		Sensor.__init__(self, interval)
		self._freemem 	= 0
		self._usedmem	= 0
	
	# + public functions
	
	def get_freemem (self):
		"""Return the amount of currently free RAM."""
		return self._freemem
	
	def get_usedmem (self):
		"""Return the amount of currently used RAM."""
		return self._usedmem
	
	# + internals
	
	def on_update (self):
		"""Called on each interval. Calculates the load and updates the
		internal values."""
		self._freemem = mem_get_freemem()
		self._usedmem = mem_get_usedmem()
		return True
	

class NetSensor (Sensor):
	
	def __init__ (self, interval=1000, device='eth0'):
		"""Create a new NetSensor which emits an 'sensor_updated'-signal after a
		given interval (default is 1000ms)."""
		Sensor.__init__(self, interval)
		self._device = device
		self._downloaded, self._uploaded	= net_get_activity(device)
		self._last_down, self._last_up		= self._downloaded, self._uploaded
		
	# + public functions
	
	def get_upload_speed (self):
		"""Return the current upload speed in b/s."""
		return self._uploaded - self._last_up
	
	def get_download_speed (self):
		"""Return the current download speed in b/s."""
		return self._downloaded - self._last_down
	
	def get_uploaded (self):
		"""Return the overall upload amount."""
		return self._uploaded
	
	def get_downloaded (self):
		"""Return the overall download amount."""
		return self._downloaded
	
	# + internals
	
	def on_update (self):
		"""Called on each interval. Calculates the load and updates the
		internal values."""
		d, u = net_get_activity(self._device)
		self._last_up		= self._uploaded
		self._last_down		= self._downloaded
		self._downloaded	= int(d)
		self._uploaded		= int(u)
		#print net_get_activity(self._device)
		return True


# TEST:
if __name__ == '__main__':
	
	old_cpu = cpu_get_load(0)
	time.sleep(1)
	new_cpu = cpu_get_load(0)
	print 'CPU0: %i%%' % (new_cpu-old_cpu)
	sys.exit(0)

	# some tests
	print sys_get_hostname()
	print net_get_activity('eth0')
	print sys_get_linux_version()
	print sys_get_kernel_version()
#	print sys_get_full_info()
	print 'CPU0: %i%%' % cpu_get_load (0)
	print 'USED RAM: %i MB' % mem_get_usedmem()
	print 'FREE RAM: %i MB' % mem_get_freemem()
	print sensors_get_sensor_value('hddtemp sensor /dev/sda')
	sys.exit(0)
	# callbacks which get notified about updates of sensor's values
	def handle_cpusensor_updated (cs):
		print 'CPU0: %i%%' % cs.get_load()
	def handle_ramsensor_updated (rs):
		print 'USED RAM: %i MB' % rs.get_usedmem()
		print 'FREE RAM: %i MB' % rs.get_freemem()
	def handle_netsensor_updated (ns):
		#print (ns.get_upload_speed(), ns.get_download_speed())
		print 'UP/DOWN: %i/%i bytes/s' % (ns.get_upload_speed(), 
			ns.get_download_speed())
	
	# create sensors and connect callbacks to them
	cpu = CPUSensor()
	cpu.connect('sensor_updated', handle_cpusensor_updated)
	ram = MemorySensor(5000)
	ram.connect('sensor_updated', handle_ramsensor_updated)
	net = NetSensor(1500, 'eth0')
	net.connect('sensor_updated', handle_netsensor_updated)
	
	# start mainloop
	mainloop = gobject.MainLoop()
	mainloop.run()

