do not register callbacks every restart

matrix-invitation-dealer/main.py

@@ -33,7 +33,12 @@ class Bot:
         # FIXME: weird hack because we get the same event twice when we join a room
         self.seen_events: Deque[str] = deque(maxlen=20)
 
+        self.callback_inhibitor = True
+
     async def invite_callback(self, room: MatrixRoom, event: InviteMemberEvent):
+        if self.callback_inhibitor:
+            return
+
         if (
             event.membership == "invite"
             and event.state_key == self.client.user_id  # event about me
@@ -49,6 +54,9 @@ class Bot:
     async def room_member_update_callback(
         self, room: MatrixRoom, event: RoomMemberEvent
     ):
+        if self.callback_inhibitor:
+            return
+
         if event.event_id in self.seen_events:
             return
         else:
@@ -66,6 +74,9 @@ class Bot:
             await self.leave(room)
 
     async def room_message_callback(self, room: MatrixRoom, event: RoomMessage):
+        if self.callback_inhibitor:
+            return
+
         if type(room) is not MatrixRoom or event.sender == self.client.user_id:
             return
 
@@ -206,8 +217,11 @@ class Bot:
     async def main(self):
         await self.client.synced.wait()
 
+        self.callback_inhibitor = False
+
         logger.info("logged in as %s !", self.client.user_id)
 
+    def register_callbacks(self):
         self.client.add_event_callback(self.invite_callback, (InviteMemberEvent,))  # type: ignore
         self.client.add_event_callback(self.room_member_update_callback, (RoomMemberEvent,))  # type: ignore
         self.client.add_event_callback(self.room_message_callback, (RoomMessage,))  # type: ignore
@@ -219,8 +233,12 @@ class Bot:
         )
         self.db = await aiosqlite.connect(env.DATABASE_FILE)
 
+        self.register_callbacks()
+
         while True:
+            self.callback_inhibitor = True
             future = asyncio.gather(self.client.sync_forever(30_000), self.main())
+
             try:
                 await asyncio.shield(future)
             except asyncio.CancelledError:
@@ -228,6 +246,7 @@ class Bot:
                 # and then gracefully shutdown all connections
                 logger.info("Gracefully shutting down")
 
+
                 await self.db_lock.acquire()
 
                 try: