begin restructuring bot's fediverse client code

bot/client.py

@@ -1,6 +1,45 @@
+from abc import abstractmethod
+from typing import Iterable, override
+
 import misskey
 import config
 
+class FediverseNote:
+    """Abstraction for notes Use this to talk to per-software implementations"""
+    def __init__(self, note):
+        pass
 
-def client_connection() -> misskey.Misskey:
-    return misskey.Misskey(address=config.INSTANCE, i=config.KEY)
+class FediverseClient:
+    def __init__(self, instance, software):
+        self.instance = instance
+        self.software = software
+
+    @abstractmethod
+    def get_notifications(self) -> Iterable[FediverseNote]:
+        """Page through notifications from the instance"""
+        pass
+
+    @abstractmethod
+    def create_note(self, text, visibility, addressee, attachment):
+        """Create a new note"""
+        pass
+
+class MisskeyClient(FediverseClient):
+    def __init__(self, instance, software):
+        super().__init__(instance, software)
+
+
+    def get_notifications(self) -> Iterable[FediverseNote]:
+        pass
+
+    def create_note(self, text, visibility, addressee, attachment):
+        pass
+
+class PleromaClient(FediverseClient):
+    def __init__(self, instance, software):
+        super().__init__(instance, software)
+
+    def get_notifications(self) -> Iterable[FediverseNote]:
+        pass
+    def create_note(self, text, visibility, addressee, attachment):
+        pass