InstaCart - Reboot batch #100

interface.rb

cart = {}

items = {
  "pomme" => {price: 3.5, stock: 100},
  "orange" => {price: 1.5, stock: 20},
  "quinoa" => {price: 5.0, stock: 30},
  "pain" => {price: 1.2, stock: 10}
}

# Boucle de prise de commande
while true
  puts "Les produits disponibles sont:"

  items.each do |name, infos|
    puts "> #{name} (€#{infos[:price]}) - #{infos[:stock]} dispos"
  end

  puts "Quel produit veux-tu ajouter? 'exit' pour sortir."
  user_choice = gets.chomp
  if user_choice == "exit"
    break
  elsif items.has_key? user_choice
    puts "Combien en veux-tu ?"
    quantity = gets.chomp.to_i
    available_stock = items[user_choice][:stock]

    # Check if quantity available and ask user for correction
    while quantity > available_stock
      puts "Juste #{available_stock} #{user_choice}s disponibles. Combien en veux-tu ?"
      quantity = gets.chomp.to_i
    end

    # Add to cart
    if cart.has_key? user_choice
      cart[user_choice] += quantity
    else
      cart[user_choice] = quantity
    end

    # Decrement stock
    items[user_choice][:stock] -= quantity

  else
    puts "Invalid choice."
  end
end


# Calcul du ticket de caisse
puts "-" * 20
sum = 0

cart.each do |name, quantity|
  price = items[name][:price]
  subtotal = price * quantity
  puts "- #{quantity} #{name} (#{price}€ each) => #{subtotal}€"
  sum += subtotal
end

puts "=> TOTAL: #{sum}€"