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<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2023 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Psy\VersionUpdater;
class IntervalChecker extends GitHubChecker
{
private $cacheFile;
private $interval;
public function __construct($cacheFile, $interval)
{
$this->cacheFile = $cacheFile;
$this->interval = $interval;
}
public function fetchLatestRelease()
{
// Read the cached file
$cached = \json_decode(@\file_get_contents($this->cacheFile, false));
if ($cached && isset($cached->last_check) && isset($cached->release)) {
$now = new \DateTime();
$lastCheck = new \DateTime($cached->last_check);
if ($lastCheck >= $now->sub($this->getDateInterval())) {
return $cached->release;
}
}
// Fall back to fetching from GitHub
$release = parent::fetchLatestRelease();
if ($release && isset($release->tag_name)) {
$this->updateCache($release);
}
return $release;
}
/**
* @throws \RuntimeException if interval passed to constructor is not supported
*/
private function getDateInterval(): \DateInterval
{
switch ($this->interval) {
case Checker::DAILY:
return new \DateInterval('P1D');
case Checker::WEEKLY:
return new \DateInterval('P1W');
case Checker::MONTHLY:
return new \DateInterval('P1M');
}
throw new \RuntimeException('Invalid interval configured');
}
private function updateCache($release)
{
$data = [
'last_check' => \date(\DATE_ATOM),
'release' => $release,
];
\file_put_contents($this->cacheFile, \json_encode($data));
}
}