Class: Nutriscore::UK::PositiveScore

Inherits:
Common::Score show all
Defined in:
lib/nutriscore/uk/positive_score.rb

Overview

This is called ‘C’-points in the documentation

Instance Attribute Summary

Attributes inherited from Common::Score

#nutrients

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Common::Score

#inspect, #score

Constructor Details

#initialize(nutrients, fibres_method: :aoac, **opts) ⇒ PositiveScore

Returns a new instance of PositiveScore.



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# File 'lib/nutriscore/uk/positive_score.rb', line 8

def initialize(nutrients, fibres_method: :aoac, **opts)
  super(nutrients, **opts)
  @fibres_method = fibres_method
end

Class Method Details

.nutrient_keys ⇒ Object 



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# File 'lib/nutriscore/uk/positive_score.rb', line 13

def self.nutrient_keys
  [:fvnp, :fibres, :proteins]
end

Instance Method Details

#fibres ⇒ Object 



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# File 'lib/nutriscore/uk/positive_score.rb', line 27

def fibres
  score_value(@nutrients.fibres, 0..5) do |v|
    if @fibres_method == :aoac
      if    v > 4.7 then 5
      elsif v > 3.7 then 4
      elsif v > 2.8 then 3
      elsif v > 1.9 then 2
      elsif v > 0.9 then 1
      else               0
      end
    elsif @fibres_method == :nsp
      if    v > 3.5 then 5
      elsif v > 2.8 then 4
      elsif v > 2.1 then 3
      elsif v > 1.4 then 2
      elsif v > 0.7 then 1
      else               0
      end
    end
  end
end

#fvnp ⇒ Object 



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# File 'lib/nutriscore/uk/positive_score.rb', line 17

def fvnp
  score_value(@nutrients.fvnp, 0..5) do |v|
    if    v > 80 then 5
    elsif v > 60 then 2
    elsif v > 40 then 1
    else              0
    end
  end
end

#proteins ⇒ Object 



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# File 'lib/nutriscore/uk/positive_score.rb', line 49

def proteins
  score_value(@nutrients.proteins, 0..5) do |v|
    if    v > 8.0 then 5
    elsif v > 6.4 then 4
    elsif v > 4.8 then 3
    elsif v > 3.2 then 2
    elsif v > 1.6 then 1
    else               0
    end
  end
end

#score_without_proteins ⇒ Object 



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# File 'lib/nutriscore/uk/positive_score.rb', line 61

def score_without_proteins
  (self.class.nutrient_keys - [:proteins]).map(&method(:public_send)).compact.reduce(&:+)
end