refactor: use slots and strongly typed properties

src/cert_manager.py

@@ -6,7 +6,7 @@ import subprocess
 import typing
 
 if typing.TYPE_CHECKING:
-    from . import params
+    from .params import Parameters
 
 
 class CertManagerError(Exception):
@@ -14,16 +14,24 @@ class CertManagerError(Exception):
 
 
 class CertManager:
+    __slots__ = [
+        "certbot_conf",
+        "certbot_www",
+        "logger",
+        "self_signed_path",
+        "with_certbot",
+    ]
+
     SELF_SIGNED_DAYS = 30
     CRT_FILE = "fullchain.pem"
     KEY_FILE = "privkey.pem"
 
-    def __init__(self, params: params.Parameters) -> None:
-        self.logger = logging.getLogger(self.__class__.__name__)
-        self.certbot_conf = pathlib.Path(params.certbot_conf)
-        self.certbot_www = pathlib.Path(params.certbot_www)
-        self.self_signed_path = pathlib.Path(params.self_signed_path)
-        self.with_certbot = params.with_certbot
+    def __init__(self, params: Parameters) -> None:
+        self.logger: logging.Logger = logging.getLogger(self.__class__.__name__)
+        self.certbot_conf: pathlib.Path = pathlib.Path(params.certbot_conf)
+        self.certbot_www: pathlib.Path = pathlib.Path(params.certbot_www)
+        self.self_signed_path: pathlib.Path = pathlib.Path(params.self_signed_path)
+        self.with_certbot: bool = params.with_certbot
 
     def init(self, hosts: list[str]) -> None:
         self.logger.debug("Initializing...")