class TntFuelAdjustmentCoefficients

# File lib/tnt_fuel_adjustment_coefficients.rb, line 7
def initialize
  @road_multiplier = extracted_values.first
  @air_multiplier  = extracted_values.last(3).first
end

# File lib/tnt_fuel_adjustment_coefficients.rb, line 28
def air_multiplier
  return unless @road_multiplier

  format_multiplier @air_multiplier.last.to_s
end

# File lib/tnt_fuel_adjustment_coefficients.rb, line 22
def road_multiplier
  return unless @air_multiplier

  format_multiplier @road_multiplier.last.to_s
end

# File lib/tnt_fuel_adjustment_coefficients.rb, line 16
def time_period
  return unless @road_multiplier

  @road_multiplier.first.to_s.strip
end

# File lib/tnt_fuel_adjustment_coefficients.rb, line 12
def url
  "https://www.tnt.com/express/fr_fr/site/home/comment-expedier/facturation/surcharges/baremes-et-historiques.html"
end

# File lib/tnt_fuel_adjustment_coefficients.rb, line 50
def extracted_values
  @extracted_values ||=
    response.to_s
            .scan(/Surcharge d[e']+(.*): (.*)<br>$/)
end

# File lib/tnt_fuel_adjustment_coefficients.rb, line 56
def format_multiplier(string)
  string.tr!("%", "")
  string.tr!(",", ".")

  number = (string.to_f / 100 + 1).round(4)
  BigDecimal(number.to_s)
end

# File lib/tnt_fuel_adjustment_coefficients.rb, line 36
def response
  ::HTTP.timeout(10).get(url)
rescue HTTP::Error
  ''
end