# -*- coding: utf-8 -*-
#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2004-2006  Donald N. Allingham
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# Portuguese version translated by Duarte Loreto <happyguy_pt@hotmail.com>, 2007.
# Based on the Spanish file.

# $Id$

"""
Portuguese-specific classes for parsing and displaying dates.
"""

#-------------------------------------------------------------------------
#
# Python modules
#
#-------------------------------------------------------------------------
import re

#-------------------------------------------------------------------------
#
# GRAMPS modules
#
#-------------------------------------------------------------------------
from gen.lib import Date
from _DateParser import DateParser
from _DateDisplay import DateDisplay
from _DateHandler import register_datehandler

#-------------------------------------------------------------------------
#
# Portuguese parser
#
#-------------------------------------------------------------------------
class DateParserPT(DateParser):

    modifier_to_int = {
        u'antes de'   : Date.MOD_BEFORE, 
        u'antes'      : Date.MOD_BEFORE, 
        u'ant.'       : Date.MOD_BEFORE, 
        u'ant'        : Date.MOD_BEFORE, 
        u'após'       : Date.MOD_AFTER,
        u'aprox.'     : Date.MOD_ABOUT,
        u'aprox'      : Date.MOD_ABOUT,
        u'apr.'       : Date.MOD_ABOUT,
        u'apr'        : Date.MOD_ABOUT,
        u'cerca de'   : Date.MOD_ABOUT,
        u'ca.'        : Date.MOD_ABOUT,
        u'ca'         : Date.MOD_ABOUT,
        u'c.'         : Date.MOD_ABOUT,
        u'até'       : Date.MOD_ABOUT,
        }

    calendar_to_int = {
        u'gregoriano'            : Date.CAL_GREGORIAN,
        u'g'                     : Date.CAL_GREGORIAN,
        u'juliano'               : Date.CAL_JULIAN,
        u'j'                     : Date.CAL_JULIAN,
        u'hebreu'                : Date.CAL_HEBREW,
        u'h'                     : Date.CAL_HEBREW,
        u'islâmico'              : Date.CAL_ISLAMIC,
        u'i'                     : Date.CAL_ISLAMIC,
        u'revolucionário'        : Date.CAL_FRENCH,
        u'r'                     : Date.CAL_FRENCH,
        u'persa'                 : Date.CAL_PERSIAN,
        u'p'                     : Date.CAL_PERSIAN,
        u'swedish'               : Date.CAL_SWEDISH, 
        u's'                     : Date.CAL_SWEDISH, 
        }

    quality_to_int = {
        u'estimado'   : Date.QUAL_ESTIMATED,
        u'est.'       : Date.QUAL_ESTIMATED,
        u'est'        : Date.QUAL_ESTIMATED,
        u'calc.'      : Date.QUAL_CALCULATED,
        u'calc'       : Date.QUAL_CALCULATED,
        u'calculado'  : Date.QUAL_CALCULATED,
        }

    def init_strings(self):
        DateParser.init_strings(self)
        _span_1 = [u'de']
        _span_2 = [u'a']
        _range_1 = [u'entre',u'ent\.',u'ent']
        _range_2 = [u'e']
        self._span     = re.compile("(%s)\s+(?P<start>.+)\s+(%s)\s+(?P<stop>.+)" % 
                                   ('|'.join(_span_1),'|'.join(_span_2)),
                           re.IGNORECASE)
        self._range    = re.compile("(%s)\s+(?P<start>.+)\s+(%s)\s+(?P<stop>.+)" %
                                   ('|'.join(_range_1),'|'.join(_range_2)),
                           re.IGNORECASE)

#-------------------------------------------------------------------------
#
# Portuguese display
#
#-------------------------------------------------------------------------
class DateDisplayPT(DateDisplay):
    """
    Portuguese language date display class. 
    """
    # TODO: Translate these month strings:
    long_months = ( u"", u"January", u"February", u"March", u"April", u"May", 
                    u"June", u"July", u"August", u"September", u"October", 
                    u"November", u"December" )
    
    short_months = ( u"", u"Jan", u"Feb", u"Mar", u"Apr", u"May", u"Jun", 
                     u"Jul", u"Aug", u"Sep", u"Oct", u"Nov", u"Dec" )
    
    calendar = (
        "", u" (Juliano)", u" (Hebreu)", 
        u" (Revolucionário)", u" (Persa)", u" (Islâmico)", 
        u" (Swedish)" 
        )

    _mod_str = ("",u"antes de ",u"depois de ",u"até ","","","")

    _qual_str = ("","estimado ","calculado ")

    formats = (
        "AAAA-MM-DD (ISO)", "Numérica", "Mês Dia, Ano",
        "MÊS Dia, Ano", "Dia Mês, Ano", "Dia MÊS, Ano"
        )
    
    def display(self,date):
        """
        Return a text string representing the date.
        """
        mod = date.get_modifier()
        cal = date.get_calendar()
        qual = date.get_quality()
        start = date.get_start_date()

        qual_str = self._qual_str[qual]
        
        if mod == Date.MOD_TEXTONLY:
            return date.get_text()
        elif start == Date.EMPTY:
            return ""
        elif mod == Date.MOD_SPAN:
            d1 = self.display_cal[cal](start)
            d2 = self.display_cal[cal](date.get_stop_date())
            return "%s%s %s %s %s%s" % (qual_str, u'de', d1, u'a', d2,self.calendar[cal])
        elif mod == Date.MOD_RANGE:
            d1 = self.display_cal[cal](start)
            d2 = self.display_cal[cal](date.get_stop_date())
            return "%s%s %s %s %s%s" % (qual_str, u'entre', d1, u'e', d2, self.calendar[cal])
        else:
            text = self.display_cal[date.get_calendar()](start)
            return "%s%s%s%s" % (qual_str, self._mod_str[mod], text, self.calendar[cal])

#-------------------------------------------------------------------------
#
# Register classes
#
#-------------------------------------------------------------------------
register_datehandler(('pt', 'pt_PT', 'pt_PT.UTF-8', 'pt_BR', 'pt_BR.UTF-8', 'pt', 'portuguese', 'Portuguese'), DateParserPT, DateDisplayPT)