ChannelOpenLine::getLiveChatWidget

static function getLiveChatWidget($lineId, $removeCopyright, $lang): ?array
{
	$widget = [];
	$liveChatManager = new ImOpenLines\LiveChatManager($lineId);
	$widget['script'] = $liveChatManager->getWidget(
		ImOpenLines\LiveChatManager::TYPE_BUTTON,
		$lang,
		['copyright' => !$removeCopyright],
		true
	);

	if (!$widget['script'])
	{
		return null;
	}

	$widget['show'] = 'window.BX.LiveChat.openLiveChat();';
	$widget['hide'] = 'window.BX.LiveChat.closeLiveChat();';
	$widget['freeze'] = true;
	$widget['sort'] = 100;
	$widget['useColors'] = true;

	return $widget;
}