interface.rb

puts '--------------------'
puts 'Welcome to Instacart'
puts '--------------------'

store_items = {
  kiwi: 1.25,
  banana: 0.5,
  mango: 4.0,
  asparagus: 9.0
}

puts "In our store today:"
store_items.each do |name, price|
  puts "#{name}: R$#{price}"
end

bill_total = Hash.new(0)
# Change cart to be a hash of { item: quantity }
# { kiwi: 4, mango: 5 }

loop do
  puts "Which item? (or 'quit' to checkout)"
  user_input = gets.chomp
  break if user_input == 'quit'

  item_price = store_items[user_input.to_sym]

  # Ask the user for quantity
  #   print message for quantity
  #   get the quantity input
  puts "How many #{user_input} do you want to add?"
  item_quantity = gets.chomp.to_i

  #   increment the cart quantity for each item
  bill_total[user_input.to_sym] += item_quantity
end

# Diplay the shop list
bill_total_price = 0
puts "-------BILL---------"
bill_total.each do |name, quantity|
  price = store_items[name]
  total_price = price * quantity
  bill_total_price += total_price
  puts "#{name}: #{quantity} X R$#{price} = R$#{total_price}"
end

# Calculate the bill_total_price from cart before displaying checkout
puts "TOTAL: R$#{bill_total_price}"
puts "--------------------"