Method setInboxReadTill

Telegram/SourceFiles/data/data_replies_list.cpp:787–809

}

void RepliesList::setInboxReadTill(
		MsgId readTillId,
		std::optional<int> unreadCount) {
	const auto newReadTillId = std::max(readTillId.bare, int64(1));
	const auto ignore = (newReadTillId < _inboxReadTillId);
	if (ignore) {
		return;
	}
	const auto changed = (newReadTillId > _inboxReadTillId);
	if (changed) {
		_inboxReadTillId = newReadTillId;
	}
	if (_skippedAfter == 0
		&& !_list.empty()
		&& _inboxReadTillId >= _list.front()) {
		unreadCount = 0;
	}
	const auto wasUnreadCount = _unreadCount;
	if (_unreadCount.current() != unreadCount
		&& (changed || unreadCount.has_value())) {
		setUnreadCount(unreadCount);
	}
}

MsgId RepliesList::inboxReadTillId() const {
	return _inboxReadTillId;