refactor: apply aggregate pattern in app/location

Author: FrankX-xzh

app/location/__init__.py

@@ -3,6 +3,15 @@
 from ..utils import countries
 from ..utils.populations import country_population
 
+class Locations:
+    def __init__(self,locations: list[Location]):
+        self.locations = locations
+
+    def add_service(self,location):
+        self.locations.append(location)
+
+    def get_location(self):
+        return locations
 
 # pylint: disable=redefined-builtin,invalid-name
 class Location:  # pylint: disable=too-many-instance-attributes

app/services/location/__init__.py

@@ -9,6 +9,9 @@ def __init__(self,location_services: list[LocationService]):
     def add_service(self,location_service):
         self.location_services.append(location_service)
 
+    def get_service(self):
+        return location_services
+
 class LocationService(ABC):
     """
     Service for retrieving locations.