feat: define authentication logic to at protocol

skywipe/auth.py

@@ -0,0 +1,25 @@
+"""Authentication module for Skywipe CLI."""
+
+from atproto import Client
+from skywipe.configure import Configuration
+
+
+class Auth:
+    def __init__(self, configuration: Configuration = None):
+        self.configuration = configuration or Configuration()
+        self.client: Client = None
+
+    def login(self) -> Client:
+        config_data = self.configuration.load()
+
+        handle = config_data.get("handle")
+        password = config_data.get("password")
+
+        if not handle or not password:
+            raise ValueError(
+                "handle and password must be set in configuration")
+
+        self.client = Client()
+        self.client.login(handle, password)
+
+        return self.client