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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) = $range;
// TODO: Actual billing.
echo "Bill from {$last_epoch} to {$next_epoch}.\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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