Adapter refactor

Allows using different ways to retrieve hosts IP address

transip_client/cli.py

@@ -1,54 +1,40 @@
+from pathlib import Path
+
 import click
 
 from transip_client.main import detect
 
 
-DEFAULT_SERVICE = "https://api.ipify.org"
-DEFAULT_API_URL = "https://api.transip.nl/v6"
-
-
 @click.command()
-@click.argument("domains", envvar="DOMAINS", nargs=-1)
-@click.option("--token", envvar="TOKEN")
-@click.option("--login", envvar="LOGIN")
-@click.option("--private-key-path", envvar="PRIVATE_KEY_PATH")
-@click.option("--service", envvar="SERVICE", default=DEFAULT_SERVICE)
-@click.option("--api-url", envvar="API_URL", default=DEFAULT_API_URL)
-@click.option("--read-only/--write", envvar="READ_ONLY", default=False)
+@click.argument("login")
+@click.argument("private-key-path")
+@click.argument("domains", nargs=-1)
+@click.option(
+    "--adapter-class",
+    default="transip_client.adapters.OpenDNSAdapter",
+)
+@click.option("--read-only/--write", default=False)
 def run(
     domains: list[str],
-    token: str,
     login: str,
     private_key_path: str,
-    service: str,
-    api_url: str,
+    adapter_class: str,
     read_only: bool,
 ) -> None:
     if not domains:
         raise ValueError("No domain(s) specified")
 
-    token_retrieval = any(
-        (
-            login,
-            private_key_path,
-        )
-    )
+    if not Path(private_key_path).exists():
+        raise ValueError(f"Unknown private key path: {private_key_path}")
 
-    if token_retrieval and not all((login, private_key_path)):
+    if not all((login, private_key_path)):
         raise ValueError(
             "Both a login name and the path to a private key need to be specified"
         )
-    elif not token_retrieval and not token:
-        raise ValueError(
-            "Either a token or a login name with a path to a private key need"
-            " to be specified"
-        )
 
     detect(
         domains,
-        service,
         (private_key_path, login),
-        token,
-        api_url,
+        adapter_class,
         read_only,
     )