'Solution'

app/car.py

@@ -0,0 +1,7 @@
+from dataclasses import dataclass
+
+
+@dataclass
+class Car:
+    brand: str
+    fuel_consumption: float

app/customer.py

@@ -0,0 +1,60 @@
+from app.car import Car
+from app.shop import Shop
+import datetime
+
+
+class Customer:
+    def __init__(
+            self,
+            name: str,
+            product_cart: dict,
+            location: list,
+            money: int,
+            car: dict
+    ) -> None:
+        self.name = name
+        self.product_cart = product_cart
+        self.location = location
+        self.money = money
+        self.car = Car(**car)
+
+    def __str__(self) -> str:
+        return (f"Customer(name={self.name}, "
+                f"product_cart={self.product_cart}, "
+                f"location={self.location}, "
+                f"money={self.money}, car={self.car})")
+
+    def calculate_distance(self, other_location: list) -> float:
+        return ((self.location[0] - other_location[0]) ** 2
+                + (self.location[1] - other_location[1]) ** 2) ** 0.5
+
+    def cost_of_products(self, price: dict) -> float:
+        return sum(self.product_cart[product] * price[product]
+                   for product in self.product_cart)
+
+    def calculate_trip_expenses(
+            self,
+            shop: Shop,
+            fuel_price: float | int
+    ) -> float:
+        return round(self.calculate_distance(shop.location)
+                     * self.car.fuel_consumption * fuel_price * 2 / 100
+                     + self.cost_of_products(shop.products), 2)
+
+    def shopping(self, shop: Shop) -> None:
+        formatted_date = datetime.datetime.now().strftime("%d/%m/%Y %H:%M:%S")
+        print()
+        print(f"Date: {formatted_date}")
+        print(f"Thanks, {self.name}, for your purchase!")
+        print("You have bought:")
+        spending_on_products = 0
+        for product in self.product_cart:
+            purchase = self.product_cart[product] * shop.products[product]
+            str_purchase = int(purchase) \
+                if purchase == int(purchase) \
+                else purchase
+            spending_on_products += purchase
+            print(f"{self.product_cart[product]} {product}s for "
+                  f"{str_purchase} dollars")
+        print(f"Total cost is {spending_on_products} dollars")
+        print("See you again!\n")

app/main.py

@@ -1,3 +1,41 @@
-def shop_trip():
-    # write your code here
-    pass
+import json
+from app.customer import Customer
+from app.shop import Shop
+
+
+def shop_trip() -> None:
+    with open("app/config.json", "r") as file:
+        data = json.load(file)
+        fuel_price, customers, shops = data.values()
+        people = [Customer(*customer.values()) for customer in customers]
+        citi_shops = [Shop(*shop.values()) for shop in shops]
+
+        for person in people:
+            print(f"{person.name} has {person.money} dollars")
+            total_costs = []
+            for shop in citi_shops:
+                total_costs.append(
+                    (shop, person.calculate_trip_expenses(
+                        shop, fuel_price)
+                     )
+                )
+                print(f"{person.name}'s trip to the {total_costs[-1][0].name}"
+                      f" costs {total_costs[-1][1]}")
+            cheapest_shop, spending = min(total_costs, key=lambda x: x[1])
+
+            if person.money < spending:
+                print(f"{person.name} doesn't have enough money"
+                      f" to make a purchase in any shop")
+                continue
+
+            print(f"{person.name} rides to {cheapest_shop.name}")
+            person.shopping(cheapest_shop)
+            person.money = person.money - spending
+
+            print(f"{person.name} rides home")
+            print(f"{person.name} now has {person.money} dollars")
+            print()
+
+
+if __name__ == "__main__":
+    shop_trip()

app/shop.py

@@ -0,0 +1,8 @@
+from dataclasses import dataclass
+
+
+@dataclass
+class Shop:
+    name: str
+    location: list
+    products: dict