public function getPromptEmailData(SiteModel $site, EventModel $lastEvent = null)
{
global $CONFIG;
$moreEventsNeeded = false;
$checkTime = \TimeSource::getDateTime();
if ($lastEvent) {
$dateInterval = new \DateInterval("P" . $site->getPromptEmailsDaysInAdvance() . "D");
$endTimeMinusExtra = clone $lastEvent->getEndAt();
$endTimeMinusExtra->sub($dateInterval);
if ($endTimeMinusExtra < $checkTime) {
// there is a last event and it is before now plus whenever!
// Now check; have we notified the user of this before?
$dateSince = $this->getSinceDateForPromptChecking();
if ($endTimeMinusExtra > $dateSince) {
// Finally check: has safe gap passed where we only send one email every X days?
$safeGapDays = max($site->getPromptEmailsDaysInAdvance(), $CONFIG->userWatchesPromptEmailSafeGapDays);
$nowMinusSafeGap = \TimeSource::getDateTime();
$nowMinusSafeGap->sub(new \DateInterval("P" . $safeGapDays . "D"));
if ($dateSince < $nowMinusSafeGap) {
// Finally we can agree to send an alert!
$moreEventsNeeded = true;
}
}
}
}
// TODO when add importing, need to double check this.
return array('moreEventsNeeded' => $moreEventsNeeded, 'checkTime' => $checkTime);
}