Initial commit for newdesigngestionnaire project

vendor/maennchen/zipstream-php/src/Time.php

@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ZipStream;
+
+use DateInterval;
+use DateTimeImmutable;
+use DateTimeInterface;
+use ZipStream\Exception\DosTimeOverflowException;
+
+/**
+ * @internal
+ */
+abstract class Time
+{
+    private const DOS_MINIMUM_DATE = '1980-01-01 00:00:00Z';
+
+    public static function dateTimeToDosTime(DateTimeInterface $dateTime): int
+    {
+        $dosMinimumDate = new DateTimeImmutable(self::DOS_MINIMUM_DATE);
+
+        if ($dateTime->getTimestamp() < $dosMinimumDate->getTimestamp()) {
+            throw new DosTimeOverflowException(dateTime: $dateTime);
+        }
+
+        $dateTime = DateTimeImmutable::createFromInterface($dateTime)->sub(new DateInterval('P1980Y'));
+
+        ['year' => $year,
+            'mon' => $month,
+            'mday' => $day,
+            'hours' => $hour,
+            'minutes' => $minute,
+            'seconds' => $second
+        ] = getdate($dateTime->getTimestamp());
+
+        return
+            ($year << 25) |
+            ($month << 21) |
+            ($day << 16) |
+            ($hour << 11) |
+            ($minute << 5) |
+            ($second >> 1);
+    }
+}