'''
Task Coach - Your friendly task manager
Copyright (C) 2004-2015 Task Coach developers <developers@taskcoach.org>

Task Coach 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 3 of the License, or
(at your option) any later version.

Task Coach 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, see <http://www.gnu.org/licenses/>.
'''

import optparse
from taskcoachlib import meta


class OptionParser(optparse.OptionParser, object):
    def __init__(self, *args, **kwargs):
        super(OptionParser, self).__init__(*args, **kwargs)
        self.__addOptionGroups()
        self.__addOptions()

    def __addOptionGroups(self):
        self.__getAndAddOptions('OptionGroup', self.add_option_group)
        
    def __addOptions(self):
        self.__getAndAddOptions('Option', self.add_option)
        
    def __getAndAddOptions(self, suffix, addOption):
        for getOption in self.__methodsEndingWith(suffix):
            addOption(getOption(self))

    def __methodsEndingWith(self, suffix):
        return [method for name, method in vars(self.__class__).items() if
                name.endswith(suffix)]

                
class OptionGroup(optparse.OptionGroup, object):
    pass
    
    
class ApplicationOptionParser(OptionParser):
    def __init__(self, *args, **kwargs):
        kwargs['usage'] = 'usage: %prog [options] [.tsk file]'
        kwargs['version'] = '%s %s'%(meta.data.name, meta.data.version)
        super(ApplicationOptionParser, self).__init__(*args, **kwargs)
        
    def profileOption(self):
        return optparse.Option('--profile', default=False, 
            action='store_true', help=optparse.SUPPRESS_HELP)
 
    def profile_skipstartOption(self):
        return optparse.Option('-s', '--skipstart', default=False, 
            action='store_true', help=optparse.SUPPRESS_HELP)

    def iniOption(self):
        return optparse.Option('-i', '--ini', dest='inifile',
            help='use the specified INIFILE for storing settings')
        
    def languageOption(self):
        return optparse.Option('-l', '--language', dest='language', 
            type='choice', choices=sorted([lang for (lang, enabled) in \
                meta.data.languages.values() if lang is not None] + ['en']),
            help='use the specified LANGUAGE for the GUI (e.g. "nl" or "fr"')

    def poOption(self):
        return optparse.Option('-p', '--po', dest='pofile',
            help='use the specified POFILE for translation of the GUI') 
