blueprints.users: dispatch USER_UPDATE to guilds and friends

- dispatcher: add EventDispatcher.dispatch_many

litecord/blueprints/users.py

@@ -189,10 +189,23 @@ async def patch_me():
         WHERE id = $2
         """, new_hash, user_id)
 
-    # TODO: dispatch USER_UPDATE to guilds and users
+    user.pop('password_hash')
     await app.dispatcher.dispatch_user(
         user_id, 'USER_UPDATE', user)
 
+    public_user = await app.storage.get_user(user_id)
+
+    guild_ids = await app.storage.get_user_guilds(user_id)
+    friend_ids = await app.storage.get_friend_ids(user_id)
+
+    await app.dispatcher.dispatch_many(
+        'guild', guild_ids, 'USER_UPDATE', public_user
+    )
+
+    await app.dispatcher.dispatch_many(
+        'friend', friend_ids, 'USER_UPDATE', public_user
+    )
+
     return jsonify(user)
 
 

litecord/dispatcher.py

@@ -1,5 +1,5 @@
 import collections
-from typing import Any
+from typing import List, Any
 
 from logbook import Logger
 
@@ -62,6 +62,14 @@ class EventDispatcher:
         key = backend.KEY_TYPE(key)
         return await backend.dispatch(key, *args, **kwargs)
 
+    async def dispatch_many(self, backend_str: str,
+                            keys: List[Any], *args, **kwargs):
+        """Dispatch to multiple keys in a single backend."""
+        log.info('MULTI DISPATCH: {!r}, {} keys',
+                 backend_str, len(keys))
+        for key in keys:
+            await self.dispatch(backend_str, key, *args, **kwargs)
+
     async def reset(self, backend_str: str, key: Any):
         """Reset the bucket in the given backend."""
         backend = self.backends[backend_str]