Class: Steuer::Steuernummer

Inherits:
Object
  • Object
show all
Defined in:
lib/steuer/steuernummer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(tax_number, state: nil) ⇒ Steuernummer 



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# File 'lib/steuer/steuernummer.rb', line 9

def initialize(tax_number, state: nil)
  @original_input = tax_number.to_s.strip
  @explicit_state_code = normalize_state_code(state)
  @state_code = @explicit_state_code || auto_detect_state

  validate_tax_number!
end

Instance Attribute Details

#original_input ⇒ Object (readonly)

Returns the value of attribute original_input.



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# File 'lib/steuer/steuernummer.rb', line 7

def original_input
  @original_input
end

#state_code ⇒ Object (readonly)

Returns the value of attribute state_code.



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# File 'lib/steuer/steuernummer.rb', line 7

def state_code
  @state_code
end

Instance Method Details

#format_type ⇒ Object 



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# File 'lib/steuer/steuernummer.rb', line 79

def format_type
  @format_type ||= if normalized_input.include?('/')
    :standard
  elsif normalized_input.length == 12 && normalized_input.match?(/^\d{12}$/)
    :federal_12
  elsif normalized_input.length == 13 && normalized_input.match?(/^\d{13}$/)
    :federal_13
  elsif unseparated_standard?
    :standard
  end

  @format_type
end

#state_name ⇒ Object 



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# File 'lib/steuer/steuernummer.rb', line 73

def state_name
  return unless @state_code

  StateMapping::STATES[@state_code][:name]
end

#to_federal_12 ⇒ Object 



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# File 'lib/steuer/steuernummer.rb', line 34

def to_federal_12
  return unless valid?

  case format_type
  when :standard
    convert_standard_to_federal_12
  when :federal_12
    normalized_input
  when :federal_13
    convert_federal_13_to_federal_12
  end
end

#to_federal_13 ⇒ Object Also known as: to_elster 



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# File 'lib/steuer/steuernummer.rb', line 47

def to_federal_13
  return unless valid?

  case format_type
  when :standard
    convert_standard_to_federal_13
  when :federal_12
    convert_federal_12_to_federal_13
  when :federal_13
    normalized_input
  end
end

#to_standard ⇒ Object 



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# File 'lib/steuer/steuernummer.rb', line 60

def to_standard
  return unless valid?

  case format_type
  when :standard
    canonical_standard_input || @original_input
  when :federal_12
    convert_federal_12_to_standard
  when :federal_13
    convert_federal_13_to_standard
  end
end

#valid? ⇒ Boolean 



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# File 'lib/steuer/steuernummer.rb', line 17

def valid?
  return false if @original_input.empty?
  return false unless format_type
  return false unless @state_code

  case format_type
  when :standard
    validate_standard_format
  when :federal_12
    validate_federal_12_format
  when :federal_13
    validate_federal_13_format
  else
    false
  end
end