#! /usr/bin/python


# this is a script for converting birthday files into a format for use in remind
# it uses the file ~/.birthdays as input, since its the default input file for birthday
# output can be piped away
#
# author: markus.decke@phoetry.de
# COPYRIGHT: GPLv2
#
import re
import datetime
import calendar
from calendar import month_abbr

current = datetime.datetime.now()

birthdays_file = open('.birthdays','r')

#// regex matches entries in birthday file <name>=DD/MM/YYYY
birthday_filter = re.compile('[\w\s]+[=][\s]*[\d+/\d+][/\d]*')

# abbreviated month names in english, starting from 0 to 12
# note : 0 will return an empty String
# In the class calendar there is a month_abbr for this, 
# since it uses the system locale it can cause problems for remind
# Only used if MONTHS and month_abbr are not equal
MONTHS = ['',
        'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
        'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'
    ]

# test if the python set locale will make output not fit for remind
if list(MONTHS) == list(month_abbr):
	MONTHS = month_abbr

# suffix for a nice sentence in remind
suffix = "th"



for line in birthdays_file:
	birthdays = birthday_filter.match(line)
	if birthdays:
		entry = birthdays.group()
		seperate = entry.split('=')
		name = seperate[0]
		date  = seperate[1].split('/')
		if len(date)>0:
			day   = date[0]
		if len(date)>1:
			month = date[1]
		if len(date)>2:
			year  = date[2]
		else: year = ""
		

		#output 
		
		#use abbrieviated month names for use in remind
		abbr= month_abbr[int(month)]

		# if year is set print the age 
		if year:
			
		#	abbr= month_abbr[int(month)]
			print 'REM %(day)s %(abbr)s MSG  %(name)s\'s [ord(year(current())-%(year)s)] birthday' % vars()
		else:
			print 'REM %(day)s %(abbr)s MSG %(name)s\'s birthday' % vars()