/**
* @param int $summit_id
* @return string
* @throws EntityValidationException
* @throws NotFoundEntityException
*/
public function getSpeakerConfirmationLink($summit_id)
{
$confirmation_page = SummitConfirmSpeakerPage::getBy(intval($summit_id));
if (!$confirmation_page) {
throw new NotFoundEntityException('Confirmation Speaker Page not set on current summit!');
}
$url = $confirmation_page->getAbsoluteLiveLink(false);
if ($this->hasAssistanceFor($summit_id)) {
throw new EntityValidationException(sprintf('this is already an assistance request for speaker %s on summit id %s', $this->ID, $summit_id));
}
$request = $this->createAssistanceFor($summit_id);
$token = null;
$already_exists = false;
do {
$token = $request->generateConfirmationToken();
$already_exists = intval(PresentationSpeakerSummitAssistanceConfirmationRequest::get()->filter(['SummitID' => intval($summit_id), 'SpeakerID:ExactMatch:not' => $this->ID, 'ConfirmationHash' => PresentationSpeakerSummitAssistanceConfirmationRequest::HashConfirmationToken($token)])->count()) > 1;
} while ($already_exists);
$request->write();
return $url . 'confirm?t=' . base64_encode($token);
}
