Next major version 2 with PHP 8.1, Symfony 6, Tabler UI, 2FA ... (#2902)

src/Utils/JavascriptFormatConverter.php

@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Utils;
+
+final class JavascriptFormatConverter
+{
+    /**
+     * Convert PHP date format to Luxon compatible format.
+     *
+     * @see https://moment.github.io/luxon/#/formatting?id=table-of-tokens
+     * @see https://www.php.net/manual/en/datetime.format.php
+     * @var array
+     */
+    private static array $formatConvertRules = [
+        // year: Litepicker interprets 2-digit year as 1900, so we have to convert 20 to 2022.
+        'yyyy' => 'YYYY', 'yy' => 'YYYY', 'y' => 'YYYY',
+        // day
+        'dd' => 'DD', 'd' => 'D',
+        // day of week
+        'EE' => 'ddd', 'EEEEEE' => 'dd',
+        // timezone
+        'ZZZZZ' => 'Z', 'ZZZ' => 'ZZ',
+        // letter 'T'
+        '\'T\'' => 'T',
+        // am/pm (a) to AM/PM (A) - Luxon always produces uppercase AM/PM
+        'a' => 'A',
+    ];
+
+    /**
+     * The output of this format is used only to convert the Litepicker date object
+     * to the input field (expected by Symfony form).
+     */
+    public function convert(string $format): string
+    {
+        return strtr($format, self::$formatConvertRules);
+    }
+}