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<?php
/**
* This file is part of the Klarna KP module
*
* (c) Klarna Bank AB (publ)
*
* For the full copyright and license information, please view the NOTICE
* and LICENSE files that were distributed with this source code.
*/
namespace Klarna\Kp\Model;
use Klarna\Core\Api\BuilderInterface;
use Klarna\Core\Model\Api\Exception as KlarnaApiException;
use Klarna\Kp\Api\CreditApiInterface;
use Klarna\Kp\Api\Data\RequestInterface;
use Klarna\Kp\Api\Data\ResponseInterface;
use Klarna\Kp\Api\QuoteInterface;
use Klarna\Kp\Api\QuoteRepositoryInterface;
use Klarna\Kp\Model\QuoteFactory as KlarnaQuoteFactory;
use Magento\Framework\Exception\NoSuchEntityException;
/**
* Class Session
*
* @package Klarna\Kp\Model
*/
class Session
{
/**
* Request Builder
*
* @var BuilderInterface
*/
private $builder;
/**
* Klarna Payments API
*
* @var CreditApiInterface
*/
private $api;
/**
* Klarna Quote Repository
*
* @var QuoteRepositoryInterface
*/
private $kQuoteRepository;
/**
* Klarna Quote Factory
*
* @var KlarnaQuoteFactory
*/
private $klarnaQuoteFactory;
/**
* @var ResponseInterface
*/
private $apiResponse;
/**
* @var QuoteInterface
*/
private $klarnaQuote;
/**
* @var \Magento\Checkout\Model\Session
*/
private $session;
/**
* Session constructor.
*
* @param \Magento\Checkout\Model\Session $session
* @param CreditApiInterface $api
* @param BuilderInterface $builder
* @param QuoteRepositoryInterface $kQuoteRepository
* @param KlarnaQuoteFactory $klarnaQuoteFactory
*/
public function __construct(
\Magento\Checkout\Model\Session $session,
CreditApiInterface $api,
BuilderInterface $builder,
QuoteRepositoryInterface $kQuoteRepository,
KlarnaQuoteFactory $klarnaQuoteFactory
) {
$this->api = $api;
$this->builder = $builder;
$this->kQuoteRepository = $kQuoteRepository;
$this->klarnaQuoteFactory = $klarnaQuoteFactory;
$this->session = $session;
}
/**
* Initialize Session
*
* @param string $sessionId
* @return ResponseInterface
* @throws \Klarna\Core\Model\Api\Exception
* @throws \Klarna\Core\Exception
*/
public function init($sessionId = null)
{
$klarnaResponse = $this->getApiResponse();
if (!$klarnaResponse) {
$klarnaResponse = $this->requestKlarnaSession($sessionId);
$klarnaQuote = $this->generateKlarnaQuote($klarnaResponse);
$this->setKlarnaQuote($klarnaQuote);
$this->setApiResponse($klarnaResponse);
}
return $klarnaResponse;
}
/**
* Get API Response
*
* @return ResponseInterface
*/
public function getApiResponse()
{
return $this->apiResponse;
}
/**
* Set API Response
*
* @param ResponseInterface $klarnaQuote
* @return $this
*/
public function setApiResponse($klarnaQuote)
{
$this->apiResponse = $klarnaQuote;
return $this;
}
/**
* Start a Klarna Session
*
* @param string $sessionId
* @return ResponseInterface
* @throws \Klarna\Core\Model\Api\Exception
* @throws \Klarna\Core\Exception
*/
private function requestKlarnaSession($sessionId = null)
{
if (null === $sessionId) {
return $this->initWithoutSession();
}
return $this->initWithSession($sessionId);
}
/**
* Create a new Klarna Session
*
* @return ResponseInterface
* @throws \Klarna\Core\Model\Api\Exception
* @throws \Klarna\Core\Exception
*/
private function initWithoutSession()
{
$data = $this->getGeneratedCreateRequest();
$klarnaResponse = $this->initKlarnaQuote($data);
return $klarnaResponse;
}
/**
* Get the create request
*
* @return RequestInterface|string[]
* @throws \Klarna\Core\Exception
*/
private function getGeneratedCreateRequest()
{
return $this->builder->setObject($this->getQuote())->generateRequest(BuilderInterface::GENERATE_TYPE_CREATE)
->getRequest();
}
/**
* @return \Magento\Quote\Model\Quote
*/
public function getQuote()
{
return $this->session->getQuote();
}
/**
* Initialize Klarna Quote
*
* @param RequestInterface $data
* @return \Klarna\Kp\Api\Data\ResponseInterface
*/
private function initKlarnaQuote(RequestInterface $data)
{
try {
$klarnaQuote = $this->kQuoteRepository->getActiveByQuote($this->getQuote());
$sessionId = $klarnaQuote->getSessionId();
if (null === $sessionId) {
$this->kQuoteRepository->markInactive($klarnaQuote);
return $this->api->createSession($data);
}
$resp = $this->updateOrCreateSession($sessionId, $data);
if ($resp->getSessionId() !== $sessionId) {
$this->kQuoteRepository->markInactive($klarnaQuote);
}
return $resp;
} catch (NoSuchEntityException $e) {
return $this->api->createSession($data);
}
}
/**
* Update existing session. Create a new session if update fails
*
* @param string $sessionId
* @param RequestInterface $data
* @return ResponseInterface
*/
private function updateOrCreateSession($sessionId, RequestInterface $data)
{
$resp = $this->api->updateSession($sessionId, $data);
if ($resp->isSuccessfull()) {
return $resp;
}
return $this->api->createSession($data);
}
/**
* Attempt to lookup existing session
*
* @param string $sessionId
* @return ResponseInterface
* @throws \Klarna\Core\Model\Api\Exception
* @throws \Klarna\Core\Exception
*/
private function initWithSession($sessionId)
{
$data = $this->getGeneratedCreateRequest();
$klarnaResponse = $this->updateOrCreateSession($sessionId, $data);
if (!$klarnaResponse->isSuccessfull()) {
throw new KlarnaApiException(__('Unable to initialize Klarna payments session'));
}
return $klarnaResponse;
}
/**
* Lookup or create Klarna Quote
*
* @param ResponseInterface $klarnaResponse
* @return QuoteInterface
*/
private function generateKlarnaQuote(ResponseInterface $klarnaResponse)
{
try {
$klarnaQuote = $this->kQuoteRepository->getBySessionId($klarnaResponse->getSessionId());
$klarnaQuote->setPaymentMethods(
$this->extractPaymentMethods($klarnaResponse->getPaymentMethodCategories())
);
$klarnaQuote->setPaymentMethodInfo($klarnaResponse->getPaymentMethodCategories());
$this->kQuoteRepository->save($klarnaQuote);
return $klarnaQuote;
} catch (NoSuchEntityException $e) {
return $this->createNewQuote($klarnaResponse);
}
}
/**
* @param $quoteData
* @return mixed
*/
private function extractPaymentMethods($categories)
{
$payment_methods = [];
foreach ($categories as $category) {
$payment_methods[] = 'klarna_' . $category['identifier'];
}
return implode(',', $payment_methods);
}
/**
* Create a new Klarna quote object
*
* @param ResponseInterface $resp
* @return QuoteInterface
*/
private function createNewQuote(ResponseInterface $resp)
{
if (!$this->getQuote()->getId()) {
throw new KlarnaApiException(__('Unable to initialize Klarna payments session'));
}
/** @var QuoteInterface $klarnaQuote */
$klarnaQuote = $this->klarnaQuoteFactory->create();
$klarnaQuote->setSessionId($resp->getSessionId());
$klarnaQuote->setClientToken($resp->getClientToken());
$klarnaQuote->setIsActive(1);
$klarnaQuote->setQuoteId($this->getQuote()->getId());
$klarnaQuote->setPaymentMethods($this->extractPaymentMethods($resp->getPaymentMethodCategories()));
$klarnaQuote->setPaymentMethodInfo($resp->getPaymentMethodCategories());
$this->kQuoteRepository->save($klarnaQuote);
return $klarnaQuote;
}
/**
* Get Klarna Quote
*
* @return \Klarna\Kp\Api\QuoteInterface
*/
public function getKlarnaQuote()
{
return $this->klarnaQuote;
}
/**
* Set Klarna Quote
*
* @param QuoteInterface $klarnaQuote
* @return $this
*/
public function setKlarnaQuote(QuoteInterface $klarnaQuote)
{
$this->klarnaQuote = $klarnaQuote;
return $this;
}
}