1 files changed, 164 insertions, 0 deletions
diff --git a/vendor/dragonmantank/cron-expression/src/Cron/DayOfMonthField.php b/vendor/dragonmantank/cron-expression/src/Cron/DayOfMonthField.php
new file mode 100644
index 0000000..39ff597
--- /dev/null
+++ b/vendor/dragonmantank/cron-expression/src/Cron/DayOfMonthField.php
@@ -0,0 +1,164 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Cron;
+
+use DateTime;
+use DateTimeInterface;
+
+/**
+ * Day of month field.  Allows: * , / - ? L W.
+ *
+ * 'L' stands for "last" and specifies the last day of the month.
+ *
+ * The 'W' character is used to specify the weekday (Monday-Friday) nearest the
+ * given day. As an example, if you were to specify "15W" as the value for the
+ * day-of-month field, the meaning is: "the nearest weekday to the 15th of the
+ * month". So if the 15th is a Saturday, the trigger will fire on Friday the
+ * 14th. If the 15th is a Sunday, the trigger will fire on Monday the 16th. If
+ * the 15th is a Tuesday, then it will fire on Tuesday the 15th. However if you
+ * specify "1W" as the value for day-of-month, and the 1st is a Saturday, the
+ * trigger will fire on Monday the 3rd, as it will not 'jump' over the boundary
+ * of a month's days. The 'W' character can only be specified when the
+ * day-of-month is a single day, not a range or list of days.
+ *
+ * @author Michael Dowling <mtdowling@gmail.com>
+ */
+class DayOfMonthField extends AbstractField
+{
+    /**
+     * {@inheritdoc}
+     */
+    protected $rangeStart = 1;
+
+    /**
+     * {@inheritdoc}
+     */
+    protected $rangeEnd = 31;
+
+    /**
+     * Get the nearest day of the week for a given day in a month.
+     *
+     * @param int $currentYear Current year
+     * @param int $currentMonth Current month
+     * @param int $targetDay Target day of the month
+     *
+     * @return \DateTime|null Returns the nearest date
+     */
+    private static function getNearestWeekday(int $currentYear, int $currentMonth, int $targetDay): ?DateTime
+    {
+        $tday = str_pad((string) $targetDay, 2, '0', STR_PAD_LEFT);
+        $target = DateTime::createFromFormat('Y-m-d', "{$currentYear}-{$currentMonth}-{$tday}");
+
+        if ($target === false) {
+            return null;
+        }
+
+        $currentWeekday = (int) $target->format('N');
+
+        if ($currentWeekday < 6) {
+            return $target;
+        }
+
+        $lastDayOfMonth = $target->format('t');
+        foreach ([-1, 1, -2, 2] as $i) {
+            $adjusted = $targetDay + $i;
+            if ($adjusted > 0 && $adjusted <= $lastDayOfMonth) {
+                $target->setDate($currentYear, $currentMonth, $adjusted);
+
+                if ((int) $target->format('N') < 6 && (int) $target->format('m') === $currentMonth) {
+                    return $target;
+                }
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isSatisfiedBy(DateTimeInterface $date, $value, bool $invert): bool
+    {
+        // ? states that the field value is to be skipped
+        if ('?' === $value) {
+            return true;
+        }
+
+        $fieldValue = $date->format('d');
+
+        // Check to see if this is the last day of the month
+        if ('L' === $value) {
+            return $fieldValue === $date->format('t');
+        }
+
+        // Check to see if this is the nearest weekday to a particular value
+        if ($wPosition = strpos($value, 'W')) {
+            // Parse the target day
+            $targetDay = (int) substr($value, 0, $wPosition);
+            // Find out if the current day is the nearest day of the week
+            $nearest = self::getNearestWeekday(
+                (int) $date->format('Y'),
+                (int) $date->format('m'),
+                $targetDay
+            );
+            if ($nearest) {
+                return $date->format('j') === $nearest->format('j');
+            }
+
+            throw new \RuntimeException('Unable to return nearest weekday');
+        }
+
+        return $this->isSatisfied((int) $date->format('d'), $value);
+    }
+
+    /**
+     * @inheritDoc
+     *
+     * @param \DateTime|\DateTimeImmutable $date
+     */
+    public function increment(DateTimeInterface &$date, $invert = false, $parts = null): FieldInterface
+    {
+        if (! $invert) {
+            $date = $date->add(new \DateInterval('P1D'));
+            $date = $date->setTime(0, 0);
+        } else {
+            $date = $date->sub(new \DateInterval('P1D'));
+            $date = $date->setTime(23, 59);
+        }
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function validate(string $value): bool
+    {
+        $basicChecks = parent::validate($value);
+
+        // Validate that a list don't have W or L
+        if (false !== strpos($value, ',') && (false !== strpos($value, 'W') || false !== strpos($value, 'L'))) {
+            return false;
+        }
+
+        if (!$basicChecks) {
+            if ('?' === $value) {
+                return true;
+            }
+
+            if ('L' === $value) {
+                return true;
+            }
+
+            if (preg_match('/^(.*)W$/', $value, $matches)) {
+                return $this->validate($matches[1]);
+            }
+
+            return false;
+        }
+
+        return $basicChecks;
+    }
+}