sources/oauth: split up single large "core" views

passbook/sources/oauth/views/base.py

@@ -0,0 +1,19 @@
+"""OAuth Base views"""
+from typing import Callable, Optional
+
+from passbook.sources.oauth.clients import BaseOAuthClient, get_client
+from passbook.sources.oauth.models import OAuthSource
+
+
+# pylint: disable=too-few-public-methods
+class OAuthClientMixin:
+    "Mixin for getting OAuth client for a source."
+
+    client_class: Optional[Callable] = None
+
+    def get_client(self, source: OAuthSource) -> BaseOAuthClient:
+        "Get instance of the OAuth client for this source."
+        if self.client_class is not None:
+            # pylint: disable=not-callable
+            return self.client_class(source)
+        return get_client(source)