Mail::sendInvoice

public function sendInvoice()
{
	global $USER_FIELD_MANAGER;

	$result = new Main\Result();
	$now = new DateTime();

	$invoice = $this->invoice;

	if (empty($invoice['ID']) || empty($invoice['ACCOUNT_NUMBER']))
	{
		$result->addError(new Main\Error('Mail sending error. Invoice data are empty!'));
		return $result;
	}

	$message = $this->fillEmailMessage($invoice);

	if(!check_email($this->dataFrom['VALUE']))
	{
		$result->addError(new Main\Error('Mail sending error. Wrong owner email!'));
		return $result;
	}

	try
	{
		$attachmentId = static::getPdfAttachment($invoice['ID']);
		if (is_bool($attachmentId))
		{
			if ($attachmentId === false)
			{
				$result->addError(new Main\Error(Loc::getMessage('CRM_ERROR_SAVING_BILL')));
			}

			return $result;
		}
	}
	catch (Main\SystemException $e)
	{
		$result->addError(new Main\Error($e->getMessage(), $e->getCode()));
		return $result;
	}

	$attachments = array($attachmentId);
	if (!empty($this->templateData['ID']) && $this->templateData['ID'] > 0 && StorageType::getDefaultTypeId() === StorageType::Disk)
	{
		$files = $USER_FIELD_MANAGER->getUserFieldValue('CRM_MAIL_TEMPLATE', 'UF_ATTACHMENT', $this->templateData['ID']);
		if (!empty($files) && is_array($files))
		{
			$diskUfManager = Disk\Driver::getInstance()->getUserFieldManager();
			$diskUfManager->loadBatchAttachedObject($files);
			foreach ($files as $attachedId)
			{
				if ($attachedObject = $diskUfManager->getAttachedObjectById($attachedId))
				{
					$attachments[] = $attachedObject->getObjectId();

					$message['BODY'] = str_replace(
						sprintf('bxacid:%u', $attachedId),
						sprintf('bxacid:n%u', $attachedObject->getObjectId()),
						$message['BODY']
					);
				}
			}
		}
	}

	$fields = array(
		'OWNER_ID' => $this->dataFrom['ID'],
		'OWNER_TYPE_ID' => $this->dataFrom['TYPE_ID'],
		'TYPE_ID' =>  \CCrmActivityType::Email,
		'SUBJECT' => $message['SUBJECT'],
		'START_TIME' => $now,
		'END_TIME' => $now,
		'COMPLETED' => 'Y',
		'RESPONSIBLE_ID' => $invoice['RESPONSIBLE_ID'],
		'PRIORITY' => \CCrmActivityPriority::Medium,
		'DESCRIPTION' => $message['BODY'],
		'DESCRIPTION_TYPE' => \CCrmContentType::Html,
		'DIRECTION' => \CCrmActivityDirection::Outgoing,
		'LOCATION' => '',
		'SETTINGS' => array('MESSAGE_FROM' => $this->dataFrom['VALUE']),
		'NOTIFY_TYPE' => \CCrmActivityNotifyType::None,
		'STORAGE_TYPE_ID' => StorageType::getDefaultTypeID(),
		'COMMUNICATIONS' => array($this->dataTo['COMMUNICATIONS']),
		'STORAGE_ELEMENT_IDS' => $attachments,
		'BINDINGS' => array_values($this->dataTo['BINDINGS'])
	);

	if(!($id = \CCrmActivity::Add($fields, false, false, array('REGISTER_SONET_EVENT' => true))))
	{
		$result->addError(new Main\Error(\CCrmActivity::GetLastErrorMessage()));
		return $result;
	}

	\CCrmActivity::SaveCommunications($id, $fields['COMMUNICATIONS'], $fields);

	$hostname = \COption::getOptionString('main', 'server_name', 'localhost');
	if (defined('BX24_HOST_NAME') && BX24_HOST_NAME !== '')
	{
		$hostname = BX24_HOST_NAME;
	}
	elseif (defined('SITE_SERVER_NAME') && SITE_SERVER_NAME !== '')
	{
		$hostname = SITE_SERVER_NAME;
	}

	$description = $fields['DESCRIPTION'];
	foreach ($attachments as $item)
	{
		$fileInfo = StorageManager::getFileInfo(
			$item, $fields['STORAGE_TYPE_ID'], false,
			array('OWNER_TYPE_ID' => \CCrmOwnerType::Activity, 'OWNER_ID' => $id)
		);

		$description = str_replace(
			sprintf('bxacid:n%u', $item),
			htmlspecialcharsbx($fileInfo['VIEW_URL']),
			$description,
			$count
		);

		if ($count > 0)
		{
			$descriptionUpdated = true;
		}

		$fileArray = StorageManager::makeFileArray($item, $fields['STORAGE_TYPE_ID']);

		$contentId = sprintf(
			'bxacid.%s@%s.crm',
			hash('crc32b', $fileArray['external_id'].$fileArray['size'].$fileArray['name']),
			hash('crc32b', $hostname)
		);
		$fields['DESCRIPTION'] = str_replace(
			sprintf('bxacid:n%u', $item),
			sprintf('cid:%s', $contentId),
			$fields['DESCRIPTION']
		);
	}

	if (!empty($descriptionUpdated))
	{
		\CCrmActivity::update($id, array(
			'DESCRIPTION' => $description,
		), false, false, array('REGISTER_SONET_EVENT' => true));
	}

	$sendErrors = array();
	if(!\CCrmActivityEmailSender::TrySendEmail($id, $fields, $sendErrors))
	{
		$errorList = array();
		foreach($sendErrors as $error)
		{
			$code = $error['CODE'];
			if($code === \CCrmActivityEmailSender::ERR_CANT_LOAD_SUBSCRIBE)
			{
				$errors[] = 'Email send error. Failed to load module "subscribe".';
			}
			elseif($code === \CCrmActivityEmailSender::ERR_INVALID_DATA)
			{
				$errors[] = 'Email send error. Invalid data.';
			}
			elseif($code === \CCrmActivityEmailSender::ERR_INVALID_EMAIL)
			{
				$errors[] = 'Email send error. Invalid email is specified.';
			}
			elseif($code === \CCrmActivityEmailSender::ERR_CANT_FIND_EMAIL_FROM)
			{
				$errors[] = 'Email send error. "From" is not found.';
			}
			elseif($code === \CCrmActivityEmailSender::ERR_CANT_FIND_EMAIL_TO)
			{
				$errors[] = 'Email send error. "To" is not found.';
			}
			elseif($code === \CCrmActivityEmailSender::ERR_CANT_ADD_POSTING)
			{
				$errors[] = 'Email send error. Failed to add posting. Please see details below.';
			}
			elseif($code === \CCrmActivityEmailSender::ERR_CANT_SAVE_POSTING_FILE)
			{
				$errors[] = 'Email send error. Failed to save posting file. Please see details below.';
			}
			elseif($code === \CCrmActivityEmailSender::ERR_CANT_UPDATE_ACTIVITY)
			{
				$errors[] = 'Email send error. Failed to update activity.';
			}
			else
			{
				$errors[] = 'Email send error. General error.';
			}

			$msg = $error['MESSAGE'] ?? '';
			if($msg !== '')
			{
				$errors[] = $msg;
			}
			foreach ($errors as $errorMsg)
			{
				$errorList[] = new Main\Error($errorMsg);
			}
		}
		$result->addErrors($errorList);
		return $result;
	}

	addEventToStatFile(
		'crm',
		'send_email_message',
		sprintf('recurring_%s', $invoice['RECURRING_ID']),
		trim(trim($fields['SETTINGS']['MESSAGE_HEADERS']['Message-Id']), '<>')
	);

	if ($result->isSuccess())
	{
		$result->setData(array('ACTIVITY_ID' => $id));
	}

	return $result;
}