UPSTREAM BASELINE: nextcloud/spreed v22.0.12 (без изменений)

Источник: https://github.com/nextcloud/spreed/archive/refs/tags/v22.0.12.tar.gz
С этого коммита ветка официального Nextcloud Talk отрезана (решение владельца 2026-07-06).
Все дальнейшие изменения — только наши; версии релизов: 22.0.12-f7.N.

lib/Events/ASystemMessageSentEvent.php

@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Talk\Events;
+
+use OCA\Talk\Participant;
+use OCA\Talk\Room;
+use OCP\Comments\IComment;
+
+abstract class ASystemMessageSentEvent extends AMessageSentEvent {
+	public function __construct(
+		Room $room,
+		IComment $comment,
+		?Participant $participant = null,
+		bool $silent = false,
+		?IComment $parent = null,
+		protected bool $skipLastActivityUpdate = false,
+	) {
+		parent::__construct(
+			$room,
+			$comment,
+			$participant,
+			$silent,
+			$parent,
+		);
+	}
+
+	/**
+	 * If multiple messages will be posted (e.g. when adding multiple users to a room)
+	 * we can skip the last message and last activity update until the last entry
+	 * was created and then update with those values.
+	 * This will replace O(n) with 1 database update.
+	 *
+	 * A {@see SystemMessagesMultipleSentEvent} will be triggered
+	 * as a final event when all system messages have been created.
+	 *
+	 * @return bool
+	 */
+	public function shouldSkipLastActivityUpdate(): bool {
+		return $this->skipLastActivityUpdate;
+	}
+}