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<?php
namespace SimplyBook\Services;
use Carbon\Carbon;
use SimplyBook\Http\ApiClient;
use SimplyBook\Traits\LegacyLoad;
class LoginUrlService
{
use LegacyLoad;
public const LOGIN_URL_CREATION_DATE_OPTION = 'simplybook_login_url_creation_date';
private ApiClient $client;
public function __construct(ApiClient $client)
{
$this->client = $client;
}
/**
* Returns de SimplyBook dashboard URL containing the company path and the
* SimplyBook domain WITHOUT trailing slash.
*/
public function getDashboardUrl(): string
{
$simplyBookDomain = $this->get_domain();
$simplyBookCompanyPath = $this->client->get_company_login();
return "https://$simplyBookCompanyPath.secure.$simplyBookDomain";
}
/**
* Returns the login URL for the user. If the login URL is not valid or has
* expired, a new login URL will be fetched. If the user should be logged in
* already, then the dashboard URL will be returned.
*
* @param string|null $path Optional path to append to the login URL
*/
public function getLoginUrl(?string $path = null): string
{
$loginUrlCreationDate = get_option(self::LOGIN_URL_CREATION_DATE_OPTION, '');
$loginUrl = $this->userShouldBeLoggedIn($loginUrlCreationDate)
? $this->getDashboardUrl()
: $this->fetchNewAutomaticLoginUrl();
// Return the URL if path is empty
if (empty($path)) {
return $loginUrl;
}
$path = ltrim($path, '/');
if (strpos($loginUrl, 'by-hash') !== false) {
return add_query_arg('back_url', '/' . $path . '/', $loginUrl);
}
return $loginUrl . '/' . $path . '/';
}
/**
* Method checks if the user should be logged in already. This is based on
* the login URL creation date. A user should be logged in for one hour.
*
* @param string $loginUrlCreationDate Can only be empty if the login-hash
* was never created before. We then assume a user is not logged in.
*/
protected function userShouldBeLoggedIn(string $loginUrlCreationDate): bool
{
if (empty($loginUrlCreationDate)) {
return false;
}
$userLoggedThreshold = Carbon::now()->subHour();
return Carbon::parse($loginUrlCreationDate)->isAfter($userLoggedThreshold);
}
/**
* Method fetches a new login URL for the user and stores it in the options.
* Returns the login URL containing the login hash WITHOUT trailing slash.
*/
protected function fetchNewAutomaticLoginUrl(): string
{
try {
$loginHashData = $this->client->createLoginHash();
} catch (\Exception $e) {
return $this->getDashboardUrl();
}
$loginUrlValue = $loginHashData['login_url'];
$loginUrlCreationDate = Carbon::now('UTC')->toDateTimeString();
update_option(self::LOGIN_URL_CREATION_DATE_OPTION, $loginUrlCreationDate, false);
return untrailingslashit($loginUrlValue);
}
}