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phab/src/applications/phortune/worker/PhortuneSubscriptionWorker.php
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PhortuneSubscriptionWorker.php
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<?php
final class PhortuneSubscriptionWorker extends PhabricatorWorker {
protected function doWork() {
$subscription = $this->loadSubscription();
$range = $this->getBillingPeriodRange($subscription);
list($last_epoch, $next_epoch) = $range;
$account = $subscription->getAccount();
$merchant = $subscription->getMerchant();
$viewer = PhabricatorUser::getOmnipotentUser();
$product = id(new PhortuneProductQuery())
->setViewer($viewer)
->withClassAndRef('PhortuneSubscriptionProduct', $subscription->getPHID())
->executeOne();
$cart_implementation = id(new PhortuneSubscriptionCart())
->setSubscription($subscription);
// TODO: This isn't really ideal. It would be better to use an application
// actor than the original author of the subscription. In particular, if
// someone initiates a subscription, adds some other account managers, and
// later leaves the company, they'll continue "acting" here indefinitely.
// However, for now, some of the stuff later in the pipeline requires a
// valid actor with a real PHID. The subscription should eventually be
// able to create these invoices "as" the application it is acting on
// behalf of.
$actor = id(new PhabricatorPeopleQuery())
->setViewer($viewer)
->withPHIDs(array($subscription->getAuthorPHID()))
->executeOne();
if (!$actor) {
throw new Exception(pht('Failed to load actor to bill subscription!'));
}
$cart = $account->newCart($actor, $cart_implementation, $merchant);
$purchase = $cart->newPurchase($actor, $product);
// TODO: Consider allowing subscriptions to cost an amount other than one
// dollar and twenty-three cents.
$currency = PhortuneCurrency::newFromUserInput($actor, '1.23 USD');
$purchase
->setBasePriceAsCurrency($currency)
->setMetadataValue('subscriptionPHID', $subscription->getPHID())
->save();
$cart->setSubscriptionPHID($subscription->getPHID());
$cart->activateCart();
// TODO: Autocharge this, etc.; this is still mostly faked up.
echo 'Okay, made a cart here: ';
echo $cart->getCheckoutURI()."\n\n";
}
/**
* Load the subscription to generate an invoice for.
*
* @return PhortuneSubscription The subscription to invoice.
*/
private function loadSubscription() {
$viewer = PhabricatorUser::getOmnipotentUser();
$data = $this->getTaskData();
$subscription_phid = idx($data, 'subscriptionPHID');
$subscription = id(new PhortuneSubscriptionQuery())
->setViewer($viewer)
->withPHIDs(array($subscription_phid))
->executeOne();
if (!$subscription) {
throw new PhabricatorWorkerPermanentFailureException(
pht(
'Failed to load subscription with PHID "%s".',
$subscription_phid));
}
return $subscription;
}
/**
* Get the start and end epoch timestamps for this billing period.
*
* @param PhortuneSubscription The subscription being billed.
* @return pair<int, int> Beginning and end of the billing range.
*/
private function getBillingPeriodRange(PhortuneSubscription $subscription) {
$data = $this->getTaskData();
$last_epoch = idx($data, 'trigger.last-epoch');
if (!$last_epoch) {
// If this is the first time the subscription is firing, use the
// creation date as the start of the billing period.
$last_epoch = $subscription->getDateCreated();
}
$this_epoch = idx($data, 'trigger.next-epoch');
if (!$last_epoch || !$this_epoch) {
throw new PhabricatorWorkerPermanentFailureException(
pht(
'Subscription is missing billing period information.'));
}
$period_length = ($this_epoch - $last_epoch);
if ($period_length <= 0) {
throw new PhabricatorWorkerPermanentFailureException(
pht(
'Subscription has invalid billing period.'));
}
if (PhabricatorTime::getNow() < $this_epoch) {
throw new Exception(
pht(
'Refusing to generate a subscription invoice for a billing period '.
'which ends in the future.'));
}
return array($last_epoch, $this_epoch);
}
}
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