lib/br_documents/ie/mg.rb
require_relative 'base'
require_relative '../commons/mod11'
module BrDocuments
module IE
class MG < Base
include Commons::Mod11
protected
def format_ie(number)
number.sub(/(\d{3})(\d{3})(\d{3})(\d{4})/, '\\1.\\2.\\3/\\4')
end
def valid_format?
regex = /^(\d{3}\.\d{3}\.\d{3}\/\d{4})$|^(\d{13})$/
regex.match(@number).present?
end
def valid_check_digit?
@number.gsub!(/[\.\/-]/, '')
number1 = "#{@number[0, 3]}0#{@number[3..10]}"
weight1 = [1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2]
digital_check1 = generate_first_digital_check(number1, weight1)
number2 = "#{@number[0, 11]}#{digital_check1}"
weight2 = [3, 2, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2]
digital_check2 = generate_check_digit(number2, weight2)
@number[-2, 2] == "#{digital_check1}#{digital_check2}"
end
private
def generate_first_digital_check(values, weights)
sum = 0
weights.each_index do |i|
number = weights[i] * values[i].to_i
sum += number < 10 ? number : number.to_s[0].to_i + number.to_s[1].to_i
end
next_dozen(sum) - sum
end
def next_dozen(number)
number += 1 while number % 10 != 0
number
end
end
end
end