# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018  Rickard Lindberg, Roger Lindberg
#
# This file is part of Timeline.
#
# Timeline 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.
#
# Timeline 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 Timeline.  If not, see <http://www.gnu.org/licenses/>.


ENGLISH_MONTH_NAMES = [
    "January",
    "February",
    "March",
    "April",
    "May",
    "June",
    "July",
    "August",
    "September",
    "October",
    "November",
    "December",
]


def _(message):
    return message  # deferred translation


ABBREVIATED_ENGLISH_MONTH_NAMES = [
    _("Jan"),
    _("Feb"),
    _("Mar"),
    _("Apr"),
    _("May"),
    _("Jun"),
    _("Jul"),
    _("Aug"),
    _("Sep"),
    _("Oct"),
    _("Nov"),
    _("Dec"),
]
del _


def month_from_english_name(month_name):
    return ENGLISH_MONTH_NAMES.index(month_name) + 1


def english_name_of_month(month):
    return ENGLISH_MONTH_NAMES[month - 1]


def abbreviated_name_of_month(month):
    return _(ABBREVIATED_ENGLISH_MONTH_NAMES[month - 1])


def month_of_abbreviated_name(name):
    for month in range(1, 13):
        if abbreviated_name_of_month(month) == name:
            return month
    raise ValueError("Could not find month name %s." % name)
