Discussion on: Daily Challenge #106 - Average Fuel Consumption

# frozen_string_literal: true

require 'json'
# Save file as fuel.rb and then run `ruby fuel.rb [7.9,100] [7.0,600]`
class FuelConsumption
  def initialize(before, after)
    @before = JSON.parse(before)
    @after = JSON.parse(after)
  end

  def calculate
    trip = @after[1] - @before[1]
    puts(
      ((consumed(@after) - consumed(@before)) / trip).round(1)
    )
  end

  def consumed(data)
    data[1] * data[0]
  end
end

FuelConsumption.new(*ARGV).calculate