Solution

app/customer.py

@@ -0,0 +1,86 @@
+from __future__ import annotations
+
+import datetime
+import math
+from dataclasses import dataclass
+from typing import List
+
+from app.shop import Shop
+
+
+@dataclass
+class Customer:
+    name: str
+    product_cart: dict
+    location: List[int]
+    money: float | int
+    car: dict
+
+    def _fuel_costs(self, fuel_price: float, shop: Shop) -> float:
+        x1, y1 = self.location
+        x2, y2 = shop.location
+
+        distance = round(math.sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2), 3)
+        cost_both_ways = round(
+            (fuel_price * distance * self.car["fuel_consumption"] / 100 * 2), 2
+        )
+        return cost_both_ways
+
+    def _products_coasts(self, shop: Shop) -> float:
+        cost = 0
+        for key in self.product_cart.keys():
+            cost += self.product_cart[key] * shop.products[key]
+        return cost
+
+    def print_the_trip(
+            self,
+            fuel_price: float,
+            shops_list: List[Shop]
+    ) -> None:
+        print(f"{self.name} has {self.money} dollars")
+
+        trips_costs = {}
+        for shop in shops_list:
+            trip_costs = sum((
+                self._fuel_costs(fuel_price, shop),
+                self._products_coasts(shop)
+            ))
+            print(f"{self.name}'s trip to the {shop.name} costs {trip_costs}")
+            trips_costs[shop.name] = trip_costs
+
+        shop_name_to_go = min(trips_costs, key=trips_costs.get)
+        shop_to_go = next((
+            shop for shop in shops_list if shop.name == shop_name_to_go
+        ))
+
+        if trips_costs[shop_name_to_go] <= self.money:
+            print(f"{self.name} rides to {shop_name_to_go}\n")
+
+            self._print_receipt(shop_to_go)
+
+            remainder = self.money - trips_costs[shop_name_to_go]
+            print(
+                f"{self.name} rides home\n"
+                f"{self.name} now has {remainder} dollars\n"
+            )
+        else:
+            print(f"{self.name} doesn't have enough money "
+                  f"to make a purchase in any shop")
+
+    def _print_receipt(self, shop: Shop) -> None:
+        now = datetime.datetime.now()
+        print(
+            f"Date: {now.strftime("%d/%m/%Y %I:%M:%S")}\n"
+            f"Thanks, {self.name}, for your purchase!\n"
+            f"You have bought: ")
+
+        for key in self.product_cart.keys():
+            amount = self.product_cart[key] * shop.products[key]
+            if isinstance(amount, float) and amount.is_integer():
+                amount = int(amount)
+            print(f"{self.product_cart[key]} {key}s for {amount} dollars")
+
+        print(
+            f"Total cost is {self._products_coasts(shop)} dollars\n"
+            f"See you again!\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.shop import Shop
+
+
+def shop_trip() -> None:
+    with open("config.json", "r") as file:
+        config = json.load(file)
+
+    fuel_price = config["FUEL_PRICE"]
+    customers = config["customers"]
+    shops = config["shops"]
+
+    shops_list = [Shop(
+        shop["name"],
+        shop["location"],
+        shop["products"]
+    ) for shop in shops]
+
+    customers_list = [Customer(
+        customer["name"],
+        customer["product_cart"],
+        customer["location"],
+        customer["money"],
+        customer["car"],
+    ) for customer in customers]
+
+    for customer in customers_list:
+        customer.print_the_trip(fuel_price, shops_list)
+
+
+shop_trip()

app/shop.py

@@ -0,0 +1,9 @@
+from dataclasses import dataclass
+from typing import List
+
+
+@dataclass
+class Shop:
+    name: str
+    location: List[int]
+    products: dict