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 +1,74 @@
+import math
+from dataclasses import dataclass
+from datetime import datetime
+from typing import List
+
+from app.car import Car
+from app.shop import Shop
+
+
+@dataclass
+class Customer:
+    name: str
+    product_cart: dict
+    location: List[int]
+    money: int
+    car: Car
+
+    def calculate_products_cost(self, shop: Shop,
+                                print_info: bool = False) -> float:
+        product_coast = sum([shop.products[key] * self.product_cart[key]
+                             for key in self.product_cart])
+        if print_info:
+            date = datetime(2021, 1, 4, 12, 33, 41)
+            date_str = date.strftime("%d/%m/%Y %H:%M:%S")
+            print(f"Date: {date_str}\n"
+                  f"Thanks, {self.name}, for your purchase!\n"
+                  "You have bought:")
+            for key, value in self.product_cart.items():
+                price = shop.products[key] * value
+                if price % 1 == 0:
+                    price = int(price)
+                print(f"{value} {key}s for {price} dollars")
+            print(f"Total cost is {product_coast} dollars\n"
+                  "See you again!\n")
+
+        return product_coast
+
+    def calculate_travel_expenses(self, shop: Shop,
+                                  fuel_price: float) -> float:
+        distance = math.dist(self.location, shop.location)
+        return (distance * 2 * self.car.fuel_consumption / 100) * fuel_price
+
+    def calculate_shops_trip(self, shops: List[Shop],
+                             fuel_price: float) -> dict:
+        shops_dict = {}
+        for shop in shops:
+            products = self.calculate_products_cost(shop)
+            trip = self.calculate_travel_expenses(shop, fuel_price)
+            shops_dict[shop.name] = round(products + trip, 2)
+        return shops_dict
+
+    def print_info(self, shops: List[Shop], fuel_price: float) -> None:
+        print(f"{self.name} has {self.money} dollars")
+        shops_trip = self.calculate_shops_trip(shops, fuel_price)
+        for key, value in shops_trip.items():
+            print(f"{self.name}'s trip to the {key} costs {value}")
+
+        selected_shop_name = min(shops_trip, key=shops_trip.get)
+        selected_shop_expenses = shops_trip[selected_shop_name]
+        if self.money >= shops_trip[selected_shop_name]:
+            print(f"{self.name} rides to {selected_shop_name}\n")
+        else:
+            print(f"{self.name} doesn't have enough money "
+                  f"to make a purchase in any shop\n")
+            return
+        selected_shop_instance = None
+        for shop in shops:
+            if shop.name == selected_shop_name:
+                selected_shop_instance = shop
+        self.calculate_products_cost(selected_shop_instance, print_info=True)
+
+        print(f"{self.name} rides home\n"
+              f"{self.name} now has "
+              f"{self.money - selected_shop_expenses} dollars\n")

app/main.py

@@ -1,3 +1,33 @@
-def shop_trip():
-    # write your code here
-    pass
+import json
+
+from app.customer import Customer
+from app.car import Car
+from app.shop import Shop
+
+
+def shop_trip() -> None:
+    with open("app/config.json", "r") as file:
+        data = json.load(file)
+        fuel_price = data["FUEL_PRICE"]
+        customers = data["customers"]
+        shops = data["shops"]
+        customers_instance = []
+        for customer in customers:
+            car_instance = Car(brand=customer["car"]["brand"],
+                               fuel_consumption=customer["car"]
+                               ["fuel_consumption"])
+            customer_instance = Customer(name=customer["name"],
+                                         product_cart=customer["product_cart"],
+                                         location=customer["location"],
+                                         money=customer["money"],
+                                         car=car_instance)
+            customers_instance.append(customer_instance)
+        shops_instance = []
+        for shop in shops:
+            shop_instance = Shop(name=shop["name"],
+                                 location=shop["location"],
+                                 products=shop["products"])
+            shops_instance.append(shop_instance)
+
+        for customer in customers_instance:
+            customer.print_info(shops_instance, fuel_price)

app/shop.py

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