# businessid.py - functions for handling Austrian company register numbers
#
# Copyright (C) 2015 Holvi Payment Services Oy
# Copyright (C) 2012, 2013 Arthur de Jong
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 USA

"""Austrian Company Register Numbers

The Austrian company register number consist of digits followed by
a single letter, e.g. "122119m". Sometimes it is presented with preceding
"FN", e.g. "FN 122119m".

>>> validate('FN 122119m')
'122119m'
>>> validate('122119m')
'122119m'
>>> validate('m123123')
Traceback (most recent call last):
    ...
InvalidFormat: ...
>>> validate('abc')
Traceback (most recent call last):
    ...
InvalidFormat: ...
"""

from stdnum import luhn
from stdnum.exceptions import *
from stdnum.util import clean


def compact(number):
    """Convert the number to the minimal representation. This strips the
    number of any valid separators and removes surrounding whitespace.
    Preceding "FN" is also removed."""
    number = clean(number, ' -./').strip()
    if number.upper().startswith('FN'):
        number = number[2:]
    return number


def validate(number):
    """Checks to see if the number provided is a valid company register number.
    This checks only the formatting."""
    number = compact(number)
    if not number[-1:].isalpha() or not number[:-1].isdigit():
        raise InvalidFormat()
    return number


def is_valid(number):
    """Checks to see if the number provided is a valid company register number.
    This checks only the formatting."""
    try:
        return bool(validate(number))
    except ValidationError:
        return False

# businessid.py - functions for handling Austrian company register numbers
# coding: utf-8
#
# Copyright (C) 2015 Holvi Payment Services Oy
# Copyright (C) 2012, 2013 Arthur de Jong
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301 USA

"""Austrian Company Register Numbers

The Austrian company register number consist of digits followed by
a single letter, e.g. "122119m". Sometimes it is presented with preceding
"FN", e.g. "FN 122119m".

>>> validate('FN 122119m')
'122119m'
>>> validate('122119m')
'122119m'
>>> validate('m123123')
Traceback (most recent call last):
    ...
InvalidFormat: ...
>>> validate('abc')
Traceback (most recent call last):
    ...
InvalidFormat: ...
"""

from stdnum import luhn
from stdnum.exceptions import *
from stdnum.util import clean


# https://www.wko.at/service/wirtschaftsrecht-gewerberecht/Das_Firmenbuch.html
AUSTRIAN_COURTS = [
    u'Wien',
    u'Wiener Neustadt',
    u'St. Pölten',
    u'Krems an der Donau',
    u'Korneuburg',
    u'Linz',
    u'Ried im Innkreis',
    u'Steyr',
    u'Wels',
    u'Salzburg',
    u'Eisenstadt',
    u'Graz',
    u'Leoben',
    u'Klagenfurt',
    u'Innsbruck',
    u'Feldkirch',
]


def compact(number):
    """Convert the number to the minimal representation. This strips the
    number of any valid separators and removes surrounding whitespace.
    Preceding "FN" is also removed."""
    number = clean(number, ' -./').strip()
    if number.upper().startswith('FN'):
        number = number[2:]
    return number


def validate(number):
    """Checks to see if the number provided is a valid company register number.
    This checks only the formatting."""
    number = compact(number)
    if not number[-1:].isalpha() or not number[:-1].isdigit():
        raise InvalidFormat()
    return number


def is_valid(number):
    """Checks to see if the number provided is a valid company register number.
    This checks only the formatting."""
    try:
        return bool(validate(number))
    except ValidationError:
        return False

Add Firmenbuchgericht courts for Austria