#!/usr/bin/python

import RPi.GPIO as GPIO  
import time  
import glob
import os

path = '/opt/tempberrypi'


def getVarFromFile(filename):
    import imp
    f = open(filename)
    global data
    data = imp.load_source('data', '', f)
    f.close()

getVarFromFile(path + '/etc/TBp1.conf')


# blinking function  
def blink(pin):  
        GPIO.output(pin,GPIO.HIGH)  
        time.sleep(1)  
        GPIO.output(pin,GPIO.LOW)  
        time.sleep(1)  
        return  



# find the path of a sensor directory that starts with 28
i = 1
textdata = ''
sensadata = ''
devicelist = glob.glob('/sys/bus/w1/devices/28*')

for sensor in devicelist:
	print "=========================================================================="
	print "= "
	print "=  The sensor is located at %s" % sensor + "/w1_slave"
	sensor_file = sensor + "/w1_slave"
	
	# Open the file that we viewed earlier so that python can see what is in it. Replace the serial number as before.
	tfile = open(sensor_file)
	
	# Read all of the text in the file.
	text = tfile.read()
	# Close the file now that the text has been read.
	tfile.close()
	# Split the text with new lines (\n) and select the second line.
	secondline = text.split("\n")[1]
	# Split the line into words, referring to the spaces, and select the 10th word (counting from 0).
	temperaturedata = secondline.split(" ")[9]
	# The first two characters are "t=", so get rid of those and convert the temperature from a string to a number.
	temperature = float(temperaturedata[2:])
	# Put the decimal point in the right place and display it.
	ctemperature = temperature / 1000
	ftemperature = (temperature/1000 + 0) * 9/5 + 32
	print '=	The temperature in C: ' + repr(ctemperature) + '.'
	print '= 	The temperature in F: ' + repr(ftemperature) + '.'

        if textdata == '':
                textdata = repr(i) + ";C=" + repr(ctemperature) + ";F=" + repr(ftemperature)
        else:
                textdata = textdata + "|" + repr(i) + ";C=" + repr(ctemperature) + ";F=" + repr(ftemperature)

        if sensadata == '':
                sensadata = repr(i) + "|" + repr(ctemperature)
        else:
                sensadata = sensadata + "|" + repr(i) + "|" + repr(ctemperature)

	# to use Raspberry Pi board pin numbers  
	GPIO.setmode(GPIO.BOARD)  
	
	# blink GPIO17 50 times  
	if ftemperature > data.high:
		print "= "
		print '= 	This sensor is OVER TEMP!!!'
		# set up GPIO output channel  
		GPIO.setup(11, GPIO.OUT)  
		for j in range(0,i):  
       			blink(11)  
		GPIO.cleanup()

	#GPIO.setmode(GPIO.BOARD)  
	if ftemperature < data.low:
		print "= "
		print '= 	This sensor is UNDER TEMP!!!'
		GPIO.setup(13, GPIO.OUT)  
		for j in range(0,i):  
			blink(13)  
		GPIO.cleanup()
	
	print "= "
	print "=========================================================================="
	print " "
	time.sleep(2)
	i = i + 1


file = open("/var/www/temperature.txt", "w")
file.writelines(textdata)
file.write("\n")
file.close()

file = open("/var/www/temp", "w")
file.writelines(sensadata)
file.write("\n")
file.close()

commands.getoutput("/bin/rm ./c")