'Solution'

app/customer.py

@@ -0,0 +1,37 @@
+from app.shop import Shop
+
+
+class Customer:
+    def __init__(
+            self,
+            name: str,
+            products_cart: dict,
+            location: list[int],
+            money: int | float,
+            car: dict
+    ) -> None:
+        self.name = name
+        self.products_cart = products_cart
+        self.location = location
+        self.money = money
+        self.car = car
+
+    def trip_price(self, fuel_price: int | float, shop: Shop) -> int | float:
+        distance = (
+            (
+                (shop.location[0] - self.location[0]) ** 2
+                + (shop.location[1] - self.location[1]) ** 2
+            ) ** 0.5
+        )
+        fuel_cost = fuel_price * (
+            self.car["fuel_consumption"] / 100
+        ) * distance * 2
+
+        products_price = sum(
+            [
+                shop.products[product] * amount
+                for product, amount in self.products_cart.items()
+            ]
+        )
+
+        return fuel_cost + products_price

app/main.py

@@ -1,3 +1,64 @@
-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("config.json", "r") as config_file:
+        config_info = json.load(config_file)
+
+    fuel_price = config_info["FUEL_PRICE"]
+
+    customers = []
+    for customer in config_info["customers"]:
+        customers.append(
+            Customer(
+                customer["name"],
+                customer["product_cart"],
+                customer["location"],
+                customer["money"],
+                customer["car"]
+            )
+        )
+
+    shops = []
+    for shop in config_info["shops"]:
+        shops.append(
+            Shop(
+                shop["name"],
+                shop["location"],
+                shop["products"]
+            )
+        )
+
+    for customer in customers:
+        print(f"{customer.name} has {customer.money} dollars")
+
+        best_shop = [shops[0], customer.trip_price(fuel_price, shops[0])]
+        for shop in shops:
+            trip_price = customer.trip_price(fuel_price, shop)
+            if trip_price < best_shop[1]:
+                best_shop = [shop, trip_price]
+
+            print(
+                f"{customer.name}'s trip to the {shop.name} "
+                f"costs {round(customer.trip_price(fuel_price, shop), 2)}"
+            )
+
+        if customer.money < customer.trip_price(fuel_price, best_shop[0]):
+            print(
+                f"{customer.name} doesn't have enough money "
+                f"to make a purchase in any shop"
+            )
+            break
+
+        initial_coordinates = customer.location
+        print(f"{customer.name} rides to {best_shop[0].name}")
+        customer.location = shop.location
+
+        print(best_shop[0].receipt(customer))
+
+        customer.location = initial_coordinates
+        customer.money -= customer.trip_price(fuel_price, best_shop[0])
+        print(f"{customer.name} rides home\n"
+              f"{customer.name} now has {round(customer.money, 2)} dollars\n")

app/shop.py

@@ -0,0 +1,35 @@
+import datetime
+
+
+class Shop:
+    def __init__(
+            self,
+            name: str,
+            location: list[int],
+            products: dict
+    ) -> None:
+        self.name = name
+        self.location = location
+        self.products = products
+
+    def receipt(self, customer: object) -> str:
+        date = datetime.datetime.now()
+        receipt = (f"\nDate: {date.strftime('%d/%m/%Y %H:%M:%S')}"
+                   f"\nThanks, {customer.name}, for your purchase!"
+                   f"\nYou have bought: \n")
+
+        total_cost = 0
+        for product in customer.products_cart:
+            price_of_products = (
+                customer.products_cart[product]
+                * self.products[product]
+            )
+            total_cost += price_of_products
+
+            receipt += (f"{customer.products_cart[product]} {product}s for "
+                        f"{price_of_products} dollars\n")
+
+        receipt += (f"Total cost is {total_cost} dollars"
+                    f"\nSee you again!\n")
+
+        return receipt

config.json

@@ -0,0 +1,76 @@
+{
+    "FUEL_PRICE": 2.4,
+    "customers": [
+        {
+            "name": "Bob",
+            "product_cart": {
+                "milk": 4,
+                "bread": 2,
+                "butter": 5
+            },
+            "location": [12, -2],
+            "money": 55,
+            "car": {
+                "brand": "Suzuki",
+                "fuel_consumption": 9.9
+            }
+        },
+        {
+            "name": "Alex",
+            "product_cart": {
+                "milk": 2,
+                "bread": 2,
+                "butter": 2
+            },
+            "location": [1, -2],
+            "money": 41,
+            "car": {
+                "brand": "BMW",
+                "fuel_consumption": 9.1
+            }
+        },
+        {
+            "name": "Monica",
+            "product_cart": {
+                "milk": 3,
+                "bread": 3,
+                "butter": 1
+            },
+            "location": [11, -2],
+            "money": 12,
+            "car": {
+                "brand": "Audi",
+                "fuel_consumption": 7.6
+            }
+        }
+    ],
+    "shops": [
+        {
+            "name": "Outskirts Shop",
+            "location": [10, -5],
+            "products": {
+                "milk": 3,
+                "bread": 1,
+                "butter": 2.5
+            }
+        },
+        {
+            "name": "Shop '24/7'",
+            "location": [4, 3],
+            "products": {
+                "milk": 2,
+                "bread": 1.5,
+                "butter": 3.2
+            }
+        },
+        {
+            "name": "Central Shop",
+            "location": [0, 0],
+            "products": {
+                "milk": 3,
+                "bread": 2,
+                "butter": 3.5
+            }
+        }
+    ]
+}