def is_applicable(
self,
order: Order
) -> bool:
"""
Check if the promotion 15% burrimenu is applicable.
The same number of hamburgers, drinks and chips.
:param Order order: order
:return boolean: is promotion applicable
"""
return len(order.hamburgers()) == len(order.chips()) == len(order.drinks())
def apply(
self,
order: Order
):
"""
Apply the promotion burrimenu.
15% hamburgers.
:param Order order: order
:return order: order with promotion applied
"""
for hamburger in order.hamburgers():
hamburger.set_price(price=hamburger.price() * (100 - 15) / 100)
order.promotions().append('burrimenu')
def calculate(
self,
order: Order
) -> float:
"""
Calculate the total price of all items.
:param Order order: order
:return float: price
"""
for drink in order.drinks():
drink.set_price(price=PriceDrink().calculate(drink=drink))
for chips in order.chips():
chips.set_price(price=PriceChips().calculate(chips=chips))
for hamburger in order.hamburgers():
hamburger.set_price(price=PriceHamburger().calculate(hamburger=hamburger))
if PromotionBurrimenu().is_applicable(order=order):
PromotionBurrimenu().apply(order=order)
if PromotionEuromania().is_applicable(order=order):
PromotionEuromania().apply(order=order)
total = 0.0
if PromotionJarramania().is_applicable(order=order):
total = 3.0
PromotionJarramania().apply(order=order)
else:
for item in order.hamburgers() + order.drinks() + order.chips():
total += item.price()
order.set_price(price=total)
return total
def normalize(order: Order) -> Dict[str, Union[str, int]]:
return dict(
barista=order.barista() or None,
hamburgers=[
HamburgerNormalizer.normalize(hamburger=hamburger)
for hamburger in order.hamburgers()
],
chips=[
ChipsNormalizer.normalize(chips=chips)
for chips in order.chips()
],
drinks=[
DrinkNormalizer.normalize(drink=drink)
for drink in order.drinks()
],
price=order.price(),
dt_created=order.dt_created(),
is_ready=order.is_ready(),
promotions=order.promotions(),
)