1 files changed, 108 insertions, 0 deletions
diff --git a/vendor/ramsey/uuid/src/Codec/TimestampFirstCombCodec.php b/vendor/ramsey/uuid/src/Codec/TimestampFirstCombCodec.php
new file mode 100644
index 0000000..9d13af7
--- /dev/null
+++ b/vendor/ramsey/uuid/src/Codec/TimestampFirstCombCodec.php
@@ -0,0 +1,108 @@
+<?php
+/**
+ * This file is part of the ramsey/uuid library
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
+ * @license http://opensource.org/licenses/MIT MIT
+ * @link https://benramsey.com/projects/ramsey-uuid/ Documentation
+ * @link https://packagist.org/packages/ramsey/uuid Packagist
+ * @link https://github.com/ramsey/uuid GitHub
+ */
+namespace Ramsey\Uuid\Codec;
+
+use Ramsey\Uuid\Exception\InvalidUuidStringException;
+use Ramsey\Uuid\UuidInterface;
+
+/**
+ * TimestampFirstCombCodec encodes and decodes COMB UUIDs which have the timestamp as the first 48 bits.
+ * To be used with MySQL, PostgreSQL, Oracle.
+ */
+class TimestampFirstCombCodec extends StringCodec
+{
+    /**
+     * Encodes a UuidInterface as a string representation of a timestamp first COMB UUID
+     *
+     * @param UuidInterface $uuid
+     *
+     * @return string Hexadecimal string representation of a GUID
+     */
+    public function encode(UuidInterface $uuid)
+    {
+        $sixPieceComponents = array_values($uuid->getFieldsHex());
+
+        $this->swapTimestampAndRandomBits($sixPieceComponents);
+
+        return vsprintf(
+            '%08s-%04s-%04s-%02s%02s-%012s',
+            $sixPieceComponents
+        );
+    }
+
+    /**
+     * Encodes a UuidInterface as a binary representation of timestamp first COMB UUID
+     *
+     * @param UuidInterface $uuid
+     *
+     * @return string Binary string representation of timestamp first COMB UUID
+     */
+    public function encodeBinary(UuidInterface $uuid)
+    {
+        $stringEncoding = $this->encode($uuid);
+
+        return hex2bin(str_replace('-', '', $stringEncoding));
+    }
+
+    /**
+     * Decodes a string representation of timestamp first COMB UUID into a UuidInterface object instance
+     *
+     * @param string $encodedUuid
+     *
+     * @return UuidInterface
+     * @throws InvalidUuidStringException
+     */
+    public function decode($encodedUuid)
+    {
+        $fivePieceComponents = $this->extractComponents($encodedUuid);
+
+        $this->swapTimestampAndRandomBits($fivePieceComponents);
+
+        return $this->getBuilder()->build($this, $this->getFields($fivePieceComponents));
+    }
+
+    /**
+     * Decodes a binary representation of timestamp first COMB UUID into a UuidInterface object instance
+     *
+     * @param string $bytes
+     *
+     * @return UuidInterface
+     * @throws InvalidUuidStringException
+     */
+    public function decodeBytes($bytes)
+    {
+        return $this->decode(bin2hex($bytes));
+    }
+
+    /**
+     * Swaps the first 48 bits with the last 48 bits
+     *
+     * @param array $components An array of UUID components (the UUID exploded on its dashes)
+     *
+     * @return void
+     */
+    protected function swapTimestampAndRandomBits(array &$components)
+    {
+        $last48Bits = $components[4];
+        if (count($components) == 6) {
+            $last48Bits = $components[5];
+            $components[5] = $components[0] . $components[1];
+        } else {
+            $components[4] = $components[0] . $components[1];
+        }
+
+        $components[0] = substr($last48Bits, 0, 8);
+        $components[1] = substr($last48Bits, 8, 4);
+    }
+}