/**
* Calculate the last date for existing downline snap or the "yesterday" for the first change log entry.
*
* @param Request\GetLastDate $request
*
* @return Response\GetLastDate
*/
public function getLastDate(Request\GetLastDate $request)
{
$result = new Response\GetLastDate();
$this->_logger->info("'Get Last Data' operation is requested.");
/* get the maximal date for existing snapshot */
$snapMaxDate = $this->_repoSnap->getMaxDatestamp();
if ($snapMaxDate) {
/* there is snapshots data */
$result->setData([Response\GetLastDate::LAST_DATE => $snapMaxDate]);
$result->markSucceed();
} else {
/* there is no snapshot data yet, get change log minimal date */
$changelogMinDate = $this->_repoChange->getChangelogMinDate();
if ($changelogMinDate) {
$period = $this->_toolPeriod->getPeriodCurrent($changelogMinDate);
$dayBefore = $this->_toolPeriod->getPeriodPrev($period);
$this->_logger->info("The last date for downline snapshot is '{$dayBefore}'.");
$result->setData([Response\GetLastDate::LAST_DATE => $dayBefore]);
$result->markSucceed();
}
}
$this->_logger->info("'Get Last Data' operation is completed.");
return $result;
}
