Class: CnpjUtils::Cnpj

Inherits:
Object
  • Object
show all
Defined in:
lib/cnpj_utils/cnpj.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(numbers) ⇒ Cnpj

Inicializador da classe



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# File 'lib/cnpj_utils/cnpj.rb', line 8

def initialize(numbers)
  if numbers.is_a? String
    numbers = numbers.split('')
  elsif numbers.is_a? Integer
    numbers = numbers.to_s.split('')
  end

  @numbers = numbers
end

Instance Attribute Details

#numbers ⇒ Object (readonly)

Acessor de leitura para os números



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# File 'lib/cnpj_utils/cnpj.rb', line 5

def numbers
  @numbers
end

Instance Method Details

#check_remainder(remainder) ⇒ Object

Checa o resto da divisão



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# File 'lib/cnpj_utils/cnpj.rb', line 54

def check_remainder(remainder)
  if remainder < 2
    0
  else
    (11 - remainder)
  end
end

#first_digit ⇒ Object

Gera o primeiro dígito verificador



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# File 'lib/cnpj_utils/cnpj.rb', line 26

def first_digit
  if @numbers.size == 12
    value = 0
    multipliers = [5,4,3,2,9,8,7,6,5,4,3,2]

    multipliers.each_with_index do |mult, index|
      value += @numbers[index].to_i * mult
    end

    check_remainder(value % 11)
  end
end

#generate_cnpj ⇒ Object

Gera o CNPJ propriamente dito



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# File 'lib/cnpj_utils/cnpj.rb', line 19

def generate_cnpj
  @numbers << first_digit
  @numbers << second_digit
  @numbers.join("")
end

#second_digit ⇒ Object

Gera o segundo dígito verificador



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# File 'lib/cnpj_utils/cnpj.rb', line 40

def second_digit
  if @numbers.size == 13
    value = 0
    multipliers = [6,5,4,3,2,9,8,7,6,5,4,3,2]

    multipliers.each_with_index do |mult, index|
      value += @numbers[index].to_i * mult
    end

    check_remainder(value % 11)
  end
end