require_relative "label"

class Ecu
  class Festwert < Label

    attr_reader :value, :unit

    def initialize(name:,
                   value:,
                   unit: nil,
                   function: nil,
                   description: nil)
      @name        = name
      @value       = value.is_a?(Array) ? value.first : value
      @unit        = unit
      @function    = function
      @description = description
    end

    def round_to(n)
      return self unless value.is_a?(Numeric)
      self.with \
        value: value.round(n)
    end

    def bytesize
      BYTESIZE[:number]
    end

    def to_s(detail: false)
      if detail == :justvalue
        value.to_s
      elsif detail == :value
        "#{name}: #{value}"
      elsif detail == :onelinefull
        "#{name}: #{to_s(detail: :oneline)}"
      elsif detail == :oneline
        "#{value}"
      elsif detail
        <<~EOS
        #{name}: #{type}
          Value: #{value}
          Unit: "#{unit}"
        EOS
      else
        "#{name}: #{type}"
      end
    end

    def properties
      [:name, :value, :unit, :function, :description]
    end

    def equality_properties
      [:name, :value]
    end
  end
end