#
# @author Sinu John
#         sinuvian at gmail dot com
#         www.sinujohn.wordpress.com
#

#
# Usage:
#       python clock.py [degree [time]]
#
#           'degree' is the degree of fuzziness - can have values of 1 or 2
#           'time' - give time in the format hour:minute (24-hour format)
#                               example: 9:45, 11:30, 14:25
#            Default value of 'degree' is 1, and 'time' is System time.
#

import sys
import time

def fuzzy(hour, minute, degree=1):
	'''Implements the fuzzy clock.
	returns the the string that spells out the time - hour:minute
	Supports two degrees of fuzziness. Set with degree = 1 or degree = 2
	When degree = 1, time is in quantum of 5 minutes.
	When degree = 2, time is in quantum of 15 minutes.'''

	if degree<=0 or degree>2:
		print 'Please use a degree of 1 or 2. Using fuzziness degree=1'
		degree = 1

	begin = 'It\'s '

	f0 = 'almost '
	f1 = 'exactly '
	f2 = 'around '

	b0 = ' past '
	b1 = ' to '

	hourList = ('One', 'Two', 'Three', 'Four', 'Five', 'Six', 'Seven', 'Eight', 'Nine', 'Ten', 'Eleven', 'Twelve')

	s1 = s2 = s3 = s4 = ''
	base = 5

	if degree == 1:
		base = 5
		val = ('Five', 'Ten', 'Quarter', 'Twenty', 'Twenty-Five', 'Half')
	elif degree == 2:
		base = 15
		val = ('Quarter', 'Half')

	dmin = minute % base # to find whether we have to use 'almost', 'exactly' or 'around'
	if minute > 30:
		pos = int((60 - minute) / base) #position in the tuple 'val'
	else:
		pos = int(minute / base)

	if dmin == 0:
		s1 = f1
		pos = pos - 1
	elif dmin <= base/2:
		s1 = f2
		if minute < 30:
			pos = pos-1
	else:
		s1 = f0
		if minute > 30:
			pos = pos -1

	s2 = val[pos]

	if minute <= base/2:               # Case like "It's around/exactly Ten"
		s2 = s3 = ''
		s4 = hourList[hour - 12 - 1]
	elif minute >= 60-base/2:          # Case like "It's almost Ten"
		s2 = s3 = ''
		s4 = hourList[hour - 12]
	else:                              # Other cases with all words, like "It's around Quarter past One"
		if minute>30:
			s3 = b1  # to
			s4 = hourList[hour - 12]
		else:
			s3 = b0  # past
			s4 = hourList[hour - 12 - 1]

	return begin + s1 + s2 + s3 + s4

def main():
	deg = 1
	stm = time.localtime()
	h = stm.tm_hour
	m = stm.tm_min

	if len(sys.argv)>=2:
		try:
			deg = int(sys.argv[1])
		except:
			print 'Please use a degree of 1 or 2. Using fuzziness degree=1'

		if len(sys.argv)>=3:
			tm = sys.argv[2].split(':')
			try:
				h = int(tm[0])
				m = int(tm[1])
				if h<0 or h>23 or m<0 or m>59:
					raise Exception
			except:
				print 'Bad time entered. Using the system time.'
				h = stm.tm_hour
				m = stm.tm_min
			print fuzzy(h, m, deg)
			return

main()