# -*- coding: utf-8 -*-
#
# Copyright (C) 2009 Damien Churchill <damoxc@gmail.com>
#
# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
# the additional special exception to link portions of this program with the OpenSSL library.
# See LICENSE for more details.
#

from __future__ import unicode_literals

import gettext

from mako.template import Template as MakoTemplate

from deluge.common import PY2, get_version


def _(text):
    text_local = gettext.gettext(text)
    if PY2:
        return text_local.decode('utf-8')
    return text_local


def escape(text):
    """
    Used by gettext.js template to escape any translated language strings that
    might contain newlines or quotes as they would break the script.
    """
    text = text.replace("'", "\\'")
    text = text.replace('\r\n', '\\n')
    text = text.replace('\r', '\\n')
    text = text.replace('\n', '\\n')
    return text


class Template(MakoTemplate):
    """
    A template that adds some built-ins to the rendering
    """

    builtins = {'_': _, 'escape': escape, 'version': get_version()}

    def render(self, *args, **data):
        data.update(self.builtins)
        rendered = MakoTemplate.render_unicode(self, *args, **data)
        return rendered.encode('utf-8')