Implementation and CLI

miojo.rb

puts "Type the cooking time: "
cooking_time = gets.chomp.to_i
puts "Type the first hourglass time: "
hour_glass_one = gets.chomp.to_i
puts "Type the second hourglass time: "
hour_glass_two = gets.chomp.to_i

def calculate_minimum_time(cooking_time, hour_glass_one, hour_glass_two)

  minimum_time = 0
  # Set initial current times
  current_time_one, current_time_two = hour_glass_one, hour_glass_two
  current_times_difference= nil
  possible_cooking = false

  while current_times_difference!= 0
    if current_time_one > current_time_two
      current_times_difference = current_time_one - current_time_two
      minimum_time += current_time_two
      current_time_one = current_times_difference
      current_time_two = hour_glass_two
    else
      current_times_difference = current_time_two - current_time_one
      minimum_time += current_time_one
      current_time_two = current_times_difference
      current_time_one = hour_glass_one
    end

    if current_times_difference == cooking_time
      minimum_time += cooking_time
      possible_cooking = true
      break
    end
  end

  return "Minimum time: #{minimum_time} minutes." if possible_cooking
  "Can't cook exactly with these times."
end

p calculate_minimum_time(cooking_time, hour_glass_one, hour_glass_two)