#!/usr/bin/env python2
import time
import sys
import getopt


def usage():
    '''Function to print out the usage of the script
    '''
    print "Script to validate convert from timestamps to human times "
    print "Usage:"
    print "epochToHuman.py [-h] [-t] <timestamp>]"
    print ""
    print "Where:"
    print "<timestamp> is the timestamp to be converted."
    print ""
    print "Options:"
    print "-h, --help            Prints this help."
    print "-t, --t               Take the timestamp to convert."
    print ""


def parseOptions():
    '''Function to read in the command line options
    '''
    
    eventtime = None
    
    try:
        opts, args = getopt.getopt(sys.argv[1:], "h:t:",
                                   ["help",
                                    "timestamp="])
    except getopt.GetoptError, err:
        print str(err)
        usage()
        sys.exit(2)
    
    timeStamp = -1
    verboseFlag = False

    for opt, val in opts:
        if (opt in ("-h", "--help")):
            usage()
            sys.exit()
        if (opt in ("-t", "--timestamp")):
            timeStamp = int(val)

    # Return the event time and the subdetectors selected 
    return (timeStamp)



#def convertTime(timeStamp):
def convertTime():
   '''Small function to convert time-stamps'''

    # Read in the command-line options
   timeStamp = parseOptions()

   # Convert to human readable format (converted to localtime)
   hum1 = time.ctime(timeStamp)
   print "human readable: ", hum1

   # Convert to formatted human readable time (formats in python-time-info.pdf)
   ltim1 = time.localtime(timeStamp) # localtime
   gtim1 = time.gmtime(timeStamp) # gmt time
   t1 = time.strftime("%d-%m-%y::%H:%M:%S",ltim1)
   t2 = time.strftime("%d-%m-%y::%H:%M:%S",gtim1)
   print "localtime string: ", t1
   print "gmtime string: ", t2

   # Convert from formatted time string to epoch
   etim1 = time.strptime(t1, "%d-%m-%y::%H:%M:%S")
   epoch = time.mktime(etim1)
   print "epoch time seconds: ", epoch
   
if __name__ == '__main__':
    #timeStamp = int(sys.argv[1])
    #convertTime(timeStamp)
    convertTime()