Given /^a shopping cart exists$/ do
  @cart = ShoppingCart.create
end

Then /^the total for the cart should be "([^"]*)"$/ do |total|
  @cart.reload
  @cart.total.should eq(total.to_f)
end

Then /^the subtotal for the cart should be "([^"]*)"$/ do |subtotal|
  @cart.reload
  @cart.subtotal.should eq(subtotal.to_f)
end

When /^I add product "([^"]*)" to cart with price "([^"]*)"$/ do |product_name, price|
  product = Product.find_by_name(product_name)
  @cart.add(product, price)
end

Then /^the total unique items on the cart should be "([^"]*)"$/ do |total|
  @cart.reload
  @cart.total_unique_items.should eq(total.to_i)
end

When /^I remove (\d+) "([^"]*)" unit(s?) from cart$/ do |quantity, product_name, plural|
  @cart.reload
  product = Product.find_by_name(product_name)
  @cart.remove(product, quantity.to_i)
end

Then /^cart should be empty$/ do
  @cart.reload
  @cart.cart_items.should be_empty
end

Given /^I add (\d+) "([^"]*)" products to cart with price "([^"]*)"$/ do |quantity, product_name, price|
  product = Product.find_by_name(product_name)
  @cart.add(product, price.to_f, quantity.to_i)
end

Then /^the subtotal for "([^"]*)" on the cart should be "([^"]*)"$/ do |product_name, subtotal|
  @cart.reload
  product = Product.find_by_name(product_name)
  @cart.subtotal_for(product).should eq(subtotal.to_f)
end

Then /^the quantity for "([^"]*)" on the cart should be "([^"]*)"$/ do |product_name, quantity|
  @cart.reload
  product = Product.find_by_name(product_name)
  @cart.quantity_for(product).should eq(quantity.to_f)
end

Then /^the price for "([^"]*)" on the cart should be "([^"]*)"$/ do |product_name, price|
  @cart.reload
  product = Product.find_by_name(product_name)
  @cart.price_for(product).should eq(price.to_f)
end

When /^I update the "([^"]*)" quantity to "([^"]*)"$/ do |product_name, quantity|
  @cart.reload
  product = Product.find_by_name(product_name)
  @cart.update_quantity_for(product, quantity.to_i)
end

When /^I update the "([^"]*)" price to "([^"]*)"$/ do |product_name, price|
  @cart.reload
  product = Product.find_by_name(product_name)
  @cart.update_price_for(product, price.to_f)
end