/**
* Dispatch request
*
* @return ResponseInterface
*/
public function execute()
{
$facebookHelper = $this->facebook->getRedirectLoginHelper();
try {
$accessToken = $facebookHelper->getAccessToken();
if (isset($accessToken)) {
$facebookUser = $this->facebook->get('/me?fields=' . static::FIELDS, $accessToken)->getGraphUser();
$customer = $this->customerRepository->getByFacebookId($facebookUser->getId());
if ($this->customerSession->getId()) {
$this->customer = $this->customerSession->getCustomerData();
$this->createOrUpdateAndLogin($facebookUser, $accessToken);
$this->messageManager->addSuccess(__("Your Facebook account is now connected to your account at our store."));
} else {
if (!is_null($customer)) {
$this->customer = $customer;
$this->createOrUpdateAndLogin($facebookUser, $accessToken);
$this->messageManager->addSuccess(__("You have successfully logged in using your Facebook account."));
} else {
try {
$this->customer = $this->customerRepository->get($facebookUser->getEmail());
} finally {
$customer = $this->createOrUpdateAndLogin($facebookUser, $accessToken);
if ($this->customer->getId() == $customer->getId()) {
$this->messageManager->addSuccess(__("We have discovered you already have an account at our store." . " Your Facebook account is now connected to your store account."));
} else {
$this->messageManager->addSuccess(__("Your Facebook account is now connected to your new user account at our store."));
}
}
}
}
} else {
throw new FacebookSDKException('The Facebook code is null');
}
} catch (FacebookSDKException $e) {
$this->logger->addError($e->getMessage());
$this->messageManager->addError(__("Oops. Something went wrong! Please try again later."));
} catch (InputException $e) {
$this->logger->addError($e->getMessage());
$this->messageManager->addError(__("Some of required values is not received. Please, check your Facebook settings." . "Required fields: email, first name, last name."));
} catch (Exception $e) {
$this->logger->addError($e->getMessage());
$this->messageManager->addError(__("Oops. Something went wrong! Please try again later."));
}
$this->_redirect($this->_redirect->getRefererUrl());
}
/**
* @return string
*/
public function getLoginUrl()
{
$facebookHelper = $this->facebook->getRedirectLoginHelper();
return $facebookHelper->getLoginUrl($this->getUrl('facebook/login'), ['scope' => 'email']);
}