Contents

require_relative 'swift_bic/bank_db'
require_relative 'ibanizator/bank_db'
require_relative 'ibanizator/bank'
require_relative 'ibanizator/iban'

class Ibanizator
  def self.bank_db
    @bank_db ||= BankDb.new
  end

  def self.iban_from_string(a_string)
    Iban.from_string(a_string)
  end

  def calculate_iban(options) # rubocop:disable Metrics/AbcSize
    # Error handling
    # TODO

    # delete spaces
    options[:account_number] = options[:account_number].to_s.gsub(/\s+/, '')
    options[:bank_code]      = options[:bank_code].to_s.gsub(/\s+/, '')

    # Fill account number to 10 digits
    while options[:account_number].size < 10
      options[:account_number] = options[:account_number].rjust(10, '0')
    end

    country_code_num = character_to_digit options[:country_code].to_s
    checksum = calculate_checksum options[:bank_code], options[:account_number], country_code_num

    options[:country_code].to_s.upcase + checksum + options[:bank_code] + options[:account_number]
  end

  def character_to_digit(char)
    char.upcase.split('').inject('') { |code, c| code + (c.ord - 55).to_s }
  end

  def calculate_checksum(bank_code, account_number, country_code_num)
    x = (bank_code + account_number + country_code_num + '00').to_i % 97
    checksum = (98 - x).to_s
    checksum.length == 1 ? checksum.insert(0, '0') : checksum
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
dkd-ibanizator-0.10.0	lib/ibanizator.rb
dkd-ibanizator-0.9.0	lib/ibanizator.rb