Solution

app/car.py

@@ -0,0 +1,7 @@
+class Car:
+    def __init__(self, brand: str, fuel_consumption: float) -> None:
+        self.brand = brand
+        self.fuel_consumption = fuel_consumption
+
+    def spent_liters_of_fuel(self, distance: float) -> float:
+        return self.fuel_consumption * distance / 100

app/customer.py

@@ -0,0 +1,29 @@
+import math
+
+from app.car import Car
+
+
+class Customer:
+    def __init__(
+            self,
+            name: str,
+            product_cart: dict,
+            location: list[int],
+            money: int,
+            car: Car
+    ) -> None:
+        self.name = name
+        self.product_cart = product_cart
+        self.location = location
+        self.money = money
+        self.car = car
+        self.__home_location = location
+
+    def initial_money(self) -> None:
+        print(f"{self.name} has {self.money} dollars")
+
+    def calculate_way_price(self, shop_location: list[int],
+                            fuel_price: float) -> float:
+        distance = math.dist(self.location, shop_location)
+        road_price = self.car.spent_liters_of_fuel(distance) * 2 * fuel_price
+        return road_price

app/main.py

@@ -1,3 +1,51 @@
-def shop_trip():
-    # write your code here
-    pass
+import json
+
+from app.car import Car
+from app.customer import Customer
+from app.shop import Shop
+
+
+def shop_trip() -> None:
+    with open("app/config.json", "r") as config_file:
+        config = json.load(config_file)
+    fuel_price = config["FUEL_PRICE"]
+    customers = [
+        Customer(
+            customer["name"],
+            customer["product_cart"],
+            customer["location"],
+            customer["money"],
+            Car(**customer["car"])
+        )
+        for customer in config["customers"]
+    ]
+    shops = [
+        Shop(**shop)
+        for shop in config["shops"]
+    ]
+
+    for customer in customers:
+        customer.initial_money()
+        price_shop_list = {}
+        for shop in shops:
+            price_for_trip = customer.calculate_way_price(
+                shop.location, fuel_price
+            ) + shop.calculate_product_price(customer)
+            print(f"{customer.name}'s trip to the {shop.name} "
+                  f"costs {round(price_for_trip, 2)}")
+            price_shop_list[price_for_trip] = shop
+        min_price = min(price_shop_list)
+        cheapest_shop = price_shop_list[min_price]
+
+        if customer.money >= min_price:
+            print(f"{customer.name} rides to "
+                  f"{cheapest_shop.name}\n")
+            home_location = customer.location
+            customer.location = cheapest_shop.location
+            cheapest_shop.print_receipt(customer)
+            print(f"{customer.name} rides home\n{customer.name} now has "
+                  f"{round(customer.money - min_price, 2)} dollars\n")
+            customer.location = home_location
+        else:
+            print(f"{customer.name} doesn't have enough money "
+                  f"to make a purchase in any shop")

app/shop.py

@@ -0,0 +1,36 @@
+import datetime
+
+from app.customer import Customer
+
+
+class Shop:
+    def __init__(
+            self,
+            name: str,
+            location: list[int],
+            products: dict
+    ) -> None:
+        self.name = name
+        self.location = location
+        self.products = products
+
+    def calculate_product_price(self, customer: Customer) -> float:
+        full_price = 0
+        for product, amount in customer.product_cart.items():
+            full_price += self.products[product] * amount
+        return full_price
+
+    def print_receipt(self, customer: Customer) -> None:
+        now = datetime.datetime.now().strftime("%d/%m/%Y %H:%M:%S")
+        print(f"Date: {now}\n"
+              f"Thanks, {customer.name}, for your purchase!\n"
+              "You have bought:")
+        for product, amount in customer.product_cart.items():
+            price = self.products[product] * amount
+            print(
+                f"{amount} {product}s for "
+                f"{int(price) if price == int(price) else price} dollars"
+            )
+        print(f"Total cost is "
+              f"{self.calculate_product_price(customer)} dollars\n"
+              f"See you again!\n")