Pop Bottles

pop_bottles.rb

# You've just been hired at Lighthouse Markets, a reputable (and thoroughly fictional) grocery store chain. 
# One of the primary features of Lighthouse Markets is their recycling program on pop bottles. Here is how the program works:
# For every two empty bottles, you can get one free (full) bottle of pop
# For every four bottle caps, you can get one free (full) bottle of pop
# Each bottle of pop costs $2 to purchase
# Given these parameters, write a program so that you can figure out how many total bottles of pop can be redeemed given a customer investment.

p 'Welcome to Lighthouse Pop Bottle Recycling Program, Bottles are $2 each, how many would you like to purchase?'
init_investment = gets.chomp.to_i

  # def caps(dollar_amount)
  #     @caps = dollar_amount / 4
  # end 

  # def bottles(dollar_amount)
  #     @bottles = dollar_amount / 2 
  # end 
  
  def recycled_bottles(bottles)
      bottles / 2
  end

  def recycled_caps(caps)
      caps / 4
  end 

  def extra_bottles(bottles)
      bottles % 2
  end 

  def extra_caps(caps)
      caps % 4
  end



  # def total_bottles(dollars)
  #     bottles = dollars / 2 
  # end 

dollar_amount = init_investment
total_bottles = dollar_amount / 2 
total_caps = dollar_amount / 2

redeemed_bottles = total_bottles 

while (total_bottles >= 2 || total_caps >= 4)

    new_bottles_from_bottles = recycled_bottles(total_bottles)
    new_bottles_from_caps = recycled_caps(total_caps)
    remaining_bottles = extra_bottles(total_bottles)
    remaining_caps = extra_caps(total_caps)
    total_bottles = new_bottles_from_bottles + remaining_bottles + new_bottles_from_caps
    total_caps = new_bottles_from_caps + remaining_caps + new_bottles_from_bottles

    redeemed_bottles += (new_bottles_from_bottles + new_bottles_from_caps)

end 

puts redeemed_bottles