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cf05092 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | """Cart calculations."""
import config
def calculate_subtotal(items: list[dict[str, float]]) -> float:
subtotal = 0.0
for item in items:
subtotal += float(item.get("price", 0.0)) * float(item.get("qty", 0.0))
return subtotal
def calculate_total(items: list[dict[str, float]]) -> float:
subtotal = calculate_subtotal(items)
# BUG: config.DISCOUNT_RATE is intended to be 0.20, but set to 20 in config.
discounted = subtotal - (subtotal * config.DISCOUNT_RATE)
return discounted + (discounted * config.TAX_RATE)
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