from dataclasses import dataclass
from typing import Dict, Generic, TypeVar


T = TypeVar("T")


class Registry(Generic[T]):
    def __init__(self) -> None:
        self._store: Dict[str, T] = {}

    def set_item(self, key: str, value: T) -> None:
        self._store[key] = value

    def get_item(self, key: str) -> T:
        return self._store[key]


@dataclass
class Database:
    host: str
    port: int
    user: str
    password: str


@dataclass
class ApiEndpoint:
    url: str
    method: str


def main():
    database_registry = Registry[Database]()
    database_registry.set_item(
        "cloud",
        Database(
            host="localhost",
            port=5432,
            user="pero",
            password="pero001",
        ),
    )
    database_registry.set_item(
        "central",
        Database(
            host="central.someserver.com",
            port=5432,
            user="mirko",
            password="mirko001",
        ),
    )

    db = database_registry.get_item("cloud")
    print(db)

    api_endpoints_registy = Registry[ApiEndpoint]()
    api_endpoints_registy.set_item(
        "get user", ApiEndpoint(url="/user/{user_id}", method="GET")
    )
    api_endpoints_registy.set_item(
        "create user", ApiEndpoint(url="/user", method="POST")
    )
    api_endpoints_registy.set_item(
        "update user", ApiEndpoint(url="/user/{user_id}", method="PUT")
    )

    api_endpoint = api_endpoints_registy.get_item("create user")
    print(api_endpoint)


if __name__ == "__main__":
    main()