#  Calendars.py  Copyright (c) Kari Laitinen

#  http://www.naturalprogramming.com

#  2006-05-02  File created.
#  2009-01-22  class ISODate used in place of Date
#  2022-12-18  Converted to Python 3.

#  See notes at the end of this file.

from ISODate import ISODate

class  EnglishCalendar  :

   def __init__( self, given_month, given_year )  :

      self.names_of_months   =   \
         (  "January", "February", "March", "April",
            "May", "June", "July", "August",
            "September", "October", "November", "December"  )

      self.week_description  =  \
          " Week   Mon  Tue  Wed  Thu  Fri  Sat  Sun"

      self.this_month  =  given_month
      self.this_year   =  given_year


   def show( self )  :

      a_day_in_this_month  =  ISODate( self.this_year, self.this_month, 1 )

      day_of_week_index   =  0

      day_of_week_of_first_day  =  a_day_in_this_month.index_for_day_of_week()

      print( "\n\n   %s  %d\n\n%s\n"  %   \
            ( self.names_of_months[ self.this_month - 1 ],
              self.this_year, self.week_description ) )

      print( "%4d  "  %  a_day_in_this_month.get_week_number(), end="" )

      # The first week of a month is often an incomplete week,
      # i.e., the first part of week belongs to the previous
      # month. In place of the days that belong to the previous
      # month we print just spaces.

      while  day_of_week_index  !=  day_of_week_of_first_day  :

         print( "     ", end="" )
         day_of_week_index  +=  1


      while  self.this_month  ==  a_day_in_this_month.month()  :

         if  day_of_week_index  >=  7   :

            print( "\n%4d  "  %  a_day_in_this_month.get_week_number(), end="" )

            day_of_week_index  =  0


         print( "%5d"  %  a_day_in_this_month.day(), end="" )

         a_day_in_this_month.increment()

         day_of_week_index  +=  1

      print( "" )


class  SpanishCalendar  ( EnglishCalendar )  :

   def __init__( self, given_month, given_year )  :

      self.names_of_months   =  \
         ( "Enero", "Febrero", "Marzo", "Abril",
           "Mayo", "Junio", "Julio", "Agosto",
           "Septiembre", "Octubre", "Noviembre", "Deciembre" )

      self.week_description  =  \
           "Semana  Lun  Mar  Mie  Jue  Vie  Sab  Dom"

      self.this_month  =  given_month
      self.this_year   =  given_year


#  The main program begins.

an_english_calendar  =  EnglishCalendar( 7, 2012 )

an_english_calendar.show()

a_spanish_calendar  =  SpanishCalendar( 12, 2022 )

a_spanish_calendar.show()



#  During compilation and execution, the file ISODate.py must be in
#  the same folder together with this program.