# Copyright 2018 Agile Geeks

# Permission is hereby granted, free of charge, to any person obtaining a copy of this software
# and associated documentation files (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge, publish, distribute,
# sublicense, and/or sell copies of the Software, and to permit persons to whom the Software
# is furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all copies or substantial
# portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
# LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
# OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

from __future__ import (
    unicode_literals,
    print_function,
    division
)
import re

class GenericValidator(object):
    """
    Generic validator
    """

    def __init__(self):
        self.regexp = re.compile(r'^.{1,}$')

    def validate(self, vat_number):
        vat_number = str(vat_number)
        if not self.regexp.match(vat_number):
            return False


    def sum_weights(self, weights, number, start_pos=0):
        checkval = 0;
        for i in range(start_pos, len(weights)):
            checkval = checkval + int(number[i]) * weights[i]
        return checkval