CIMRestService::onBotJoinChat

static function onBotJoinChat($arParams, $arHandler)
{
	$arParams = array_change_key_case($arParams, CASE_UPPER);

	if (!$arHandler['APP_CODE'])
	{
		$parts = parse_url($arHandler['EVENT_HANDLER']);
		parse_str($parts['query'], $query);
		$query = array_change_key_case($query, CASE_UPPER);
		if ($query['CLIENT_ID'])
		{
			$arHandler['APP_CODE'] = 'custom'.$query['CLIENT_ID'];
		}
	}

	if (!$arHandler['APP_CODE'])
	{
		throw new Exception('Event is intended for another application');
	}

	$bots = Array();
	if ($arParams[0]['APP_ID'] == $arHandler['APP_CODE'])
	{
		$sendBotData = self::getAccessToken($arHandler['APP_ID'], $arParams[0]['BOT_ID']);
		$sendBotData['AUTH'] = $sendBotData;
		$sendBotData['BOT_ID'] = $arParams[0]['BOT_ID'];
		$sendBotData['BOT_CODE'] = $arParams[0]['CODE'];
		$bots[$arParams[0]['BOT_ID']] = $sendBotData;
	}

	if (empty($bots))
	{
		throw new Exception('Event is intended for another application');
	}

	$params = $arParams[2];
	$params['DIALOG_ID'] = $arParams[1];
	$params['LANGUAGE'] = BitrixImBot::getDefaultLanguage();

	if ($params['USER_ID'] > 0)
	{
		$fromUser = BitrixImUser::getInstance($params['USER_ID'])->getFields();

		$user = Array(
			'ID' => $fromUser['id'],
			'NAME' => $fromUser['name'],
			'FIRST_NAME' => $fromUser['first_name'],
			'LAST_NAME' => $fromUser['last_name'],
			'WORK_POSITION' => $fromUser['work_position'],
			'GENDER' => $fromUser['gender'],
		);
	}
	else
	{
		$user = Array();
	}

	if ($arParams[2]['CHAT_TYPE'] != 'LINES' && $arParams[0]['TYPE'] != BitrixImBot::TYPE_SUPERVISOR)
	{
		BitrixImBot::startWriting(Array('BOT_ID' => $params['BOT_ID']), $params['DIALOG_ID']);
	}

	return Array(
		'BOT' => $bots,
		'PARAMS' => $params,
		'USER' => $user
	);
}