chat delete: bridge properly

Signed-off-by: Sumner Evans <sumner.evans@automattic.com>

pkg/connector/client.go

@@ -192,6 +192,7 @@ func NewTelegramClient(ctx context.Context, tc *TelegramConnector, login *bridge
 	dispatcher.OnPeerBlocked(func(ctx context.Context, e tg.Entities, update *tg.UpdatePeerBlocked) error {
 		return client.onPeerBlocked(ctx, update)
 	})
+	dispatcher.OnChat(client.onChat)
 
 	client.ScopedStore = tc.Store.GetScopedStore(telegramUserID)
 

pkg/connector/telegram.go

@@ -887,3 +887,18 @@ func (t *TelegramClient) onPeerBlocked(ctx context.Context, update *tg.UpdatePee
 	})
 	return nil
 }
+
+func (t *TelegramClient) onChat(ctx context.Context, e tg.Entities, update *tg.UpdateChat) error {
+	if _, ok := e.ChatsForbidden[update.ChatID]; ok {
+		// The chat is now forbidden, we should leave it.
+		t.main.Bridge.QueueRemoteEvent(t.userLogin, &simplevent.ChatDelete{
+			OnlyForMe: true,
+			EventMeta: simplevent.EventMeta{
+				Type:      bridgev2.RemoteEventChatDelete,
+				PortalKey: t.makePortalKeyFromID(ids.PeerTypeChat, update.ChatID),
+				Sender:    t.mySender(),
+			},
+		})
+	}
+	return nil
+}