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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright (C) 2025 Étienne Loks <etienne.loks at iggdrasil dot net>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# See the file COPYING for details.
from datetime import datetime
from jinja2.filters import pass_environment as environmentfilter
import locale
from num2words import num2words
import re
from django.conf import settings
def set_locale():
language_code = settings.LANGUAGE_CODE.split("-")
language_code = language_code[0] + "_" + language_code[1].upper()
for language_suffix in (".utf8", ""):
try:
locale.setlocale(locale.LC_TIME, language_code + language_suffix)
break
except locale.Error:
pass
@environmentfilter
def float_format(*args):
"""
10350.5 -> 10 350,5
5 -> 5
5.449999 -> 5,45
"""
value = args[0] if len(args) == 1 else args[1] # jinja simple filter
if value is None or value == "":
return ""
try:
value = float(value)
except ValueError:
return ""
locale.setlocale(locale.LC_ALL, "fr_FR.UTF-8")
if int(value) != value:
value = float(f"{value:.2f}")
return f"{value:n}"
@environmentfilter
def euro_format(*args):
"""
15000 -> 15 000,00 €
5 -> 5,00 €
"""
value = args[0] if len(args) == 1 else args[1] # jinja simple filter
value = float_format(value)
if not value:
return ""
parts = value.split(",")
if len(parts) < 2:
return value + ",00 €"
elif len(parts[1]) == 1:
return value + "0 €"
return value + " €"
@environmentfilter
def number_to_words(*args):
value = args[0] if len(args) == 1 else args[1] # jinja simple filter
if value is None or value == "":
return ""
try:
value = float(value)
except ValueError:
return ""
return num2words(value, lang=settings.LANGUAGE_CODE.split("-")[0])
@environmentfilter
def replace_line_breaks(*args):
value = args[0] if len(args) == 1 else args[1] # jinja simple filter
return (value or "").replace("\r\n", "\n")
@environmentfilter
def capfirst_filter(*args):
value = args[0] if len(args) == 1 else args[1] # jinja simple filter
return value[0].upper() + value[1:] if value else value
@environmentfilter
def lowerfirst_filter(*args):
value = args[0] if len(args) == 1 else args[1] # jinja simple filter
return value[0].lower() + value[1:] if value else value
RE_CAP = re.compile(r"[^-' ]+")
SEP = ("un", "une", "le", "la", "les", "lez", "d", "l", "de", "des", "du", "sur",
"sous", "en")
@environmentfilter
def capitalize_filter(*args):
value = args[0] if len(args) == 1 else args[1] # jinja simple filter
if not value:
return ""
value = value.lower()
res = ""
for m in RE_CAP.finditer(value):
start = m.start()
if start:
res += value[start - 1]
v = m.group()
if v not in SEP:
v = v[0].upper() + v[1:]
res += v
return res
@environmentfilter
def human_date_filter(*args):
value = args[0] if len(args) == 1 else args[1] # jinja simple filter
try:
value = datetime.strptime(value, "%Y-%m-%d")
except (ValueError, TypeError) as __:
return ""
set_locale()
return value.strftime(settings.DATE_FORMAT)
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