#
# @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')

    # to find whether we have to use 'almost', 'exactly' or 'around'
    dmin = minute % base
    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 Exception:
            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 Exception:
                print('Bad time entered. Using the system time.')
                h = stm.tm_hour
                m = stm.tm_min
                print(fuzzy(h, m, deg))
            return

main()