price_calculator

cart.rb

require_relative 'local_grocery'
class Cart
  attr_accessor :name
  attr_accessor :cart
  attr_accessor :convert
  def initialize(name)
    @name = name
    @all_items = Hash.new(0)
    @cart = []
    @cart_with_quantities = Hash.new(0)
  end

  def add_items_to_hash(item)
    @all_items[item.name] += item.price
  end

  def ask_user
    puts "Please enter all the items purchased separated by a comma"
    @cart = gets.chomp.split(',')
    convert_cart_to_quantities
  end

  def convert_cart_to_quantities
    @cart.each do |name|
      @cart_with_quantities[name] += 1
    end
    puts @cart_with_quantities
  end

  def calculate_cart
    total = @cart_with_quantities.merge(@all_items) {|key, oldval, newval| newval * oldval }
    how_much = total.values
    final = how_much.inject(:+)
    puts final.round(2)
  end

end

local_grocery.rb

class LocalGrocery
  attr_accessor :name
  attr_accessor :price

  def initialize(name, price=0)
    @name = name
    @price = price
  end

end

price_calculator.rb

require_relative 'local_grocery'
require_relative 'cart'

milk = LocalGrocery.new("milk", 3.97)
bread = LocalGrocery.new("bread", 2.17)
banana = LocalGrocery.new("banana", 0.99)
apple = LocalGrocery.new("apple", 0.89)

lets_go = Cart.new("Lets Go") 

lets_go.add_items_to_hash(milk)
lets_go.add_items_to_hash(bread)
lets_go.add_items_to_hash(banana)
lets_go.add_items_to_hash(apple)


lets_go.ask_user
lets_go.calculate_cart