## Trying to figure out how to delete a singlar item from the session-based cart
## Cart.rb
class Cart

  # Remember this cart has been hacked around and it is actually managing ProductOption, not Product models.
  attr_reader :items

  def initialize
    @items = []
  end

  def add_product(product)
    current_item = @items.find {|item| item.product == product}
    if current_item
      current_item.increment_quantity
    else
      current_item = CartItem.new(product)
      @items << current_item
    end
    current_item
  end

  # Still trying to figure this out =\
  def remove_product(product)
    current_item = @items.find {|item| item.product == product}
    current_item.remove_item
  end

  def total_items
    @items.sum { |item| item.quantity }
  end

  def total_price
    @items.sum { |item| item.sub_total }
  end
end

## CartItem.rb
class CartItem

  attr_reader :product, :quantity, :piece_name, :item_id, :size, :price, :sub_total, :perma_link

  def initialize(product)
    @product = product
    @quantity = 1
  end

  def increment_quantity
    @quantity += 1
  end

  def remove_item
    session[:cart][:item][:id] = nil
  end

  def piece_name
    @product.piece_name
  end

  def item_id
    @product.id
  end

  def size
    @product.size
  end

  def price
    @product.price
  end

  def sub_total
    @product.price * @quantity
  end

  def perma_link
    @product.perma_link
  end

end