Discount Store.py - develop - RusSold/First-project

Discount Store.py
65 строк2 KB
maklorenecolog-spec
added solution for Task 4 Discount Store
25 июл 2026, 19:57
25 июл 2026, 19:57d083e1b
import Module_VerificationFunctions as ver_number


def show_error_input(number, types_numbers_list):
    if not ver_number.complex_check_number(number, types_numbers_list):
        print("Вы ввели неправильное число!")
        return False
    else:
        return True 


def calculate_discounts(preliminary_sum, quantity, has_discount_card):
    result = {}
    current_sum = preliminary_sum
    if quantity > 5:
        discount = round(preliminary_sum * 0.1, 2)
        result["скидка за количество"] = discount
        current_sum = current_sum - discount 
    if has_discount_card:
        discount = round(current_sum * 0.05, 2) 
        result["скидка за карту"] = discount
        current_sum = current_sum - discount
    return result       
         

price = input("Введите цену товара: ")
proceed = True
if ver_number.is_integer_number(price):
    types_numbers = ["natural", "integer"]
else:
    types_numbers = ["not zero", "rational"]    
    
if show_error_input(price, types_numbers):
    price = float(price)
else:
    proceed = False
     
if proceed:
    quantity = input("Введите количество товара: ") 
    if show_error_input(quantity, ["natural", "integer"]):
        quantity = int(quantity)
    else:
        proceed = False

if proceed:
    has_discount_card = input("У Вас есть скидочная карта (да/нет)? ").strip().lower()
    if has_discount_card == "да":
        has_discount_card = True
    elif has_discount_card == "нет":
        has_discount_card = False
    else:
        print("Вы ввели неправильный ответ! (только 'да' или 'нет')")
        proceed = False
        has_discount_card = False 
        
if proceed:
    preliminary_sum = round(price * quantity, 2)
    final_discounts = calculate_discounts(preliminary_sum, quantity, has_discount_card)
    final_value_discount = 0
    text_discounts = "" 
    for discount in final_discounts:
        text_discounts += discount + " = " + str(final_discounts[discount]) + "\n"
        final_value_discount += final_discounts[discount]
    final_sum =  round(preliminary_sum -  final_value_discount, 2)           
    print(f"Сумма без скидки = {preliminary_sum}\nCкидки: \n{text_discounts}Итоговая цена: {final_sum}")