Weekly reporting view (#1892)

src/Timesheet/DateTimeFactory.php

@@ -0,0 +1,101 @@
+<?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\Timesheet;
+
+use DateTime;
+use DateTimeZone;
+
+class DateTimeFactory
+{
+    /**
+     * @var DateTimeZone
+     */
+    private $timezone;
+
+    public function __construct(?DateTimeZone $timezone = null)
+    {
+        if (null === $timezone) {
+            $timezone = new \DateTimeZone(date_default_timezone_get());
+        }
+        $this->setTimezone($timezone);
+    }
+
+    public function setTimezone(DateTimeZone $timezone)
+    {
+        $this->timezone = $timezone;
+    }
+
+    public function getTimezone(): DateTimeZone
+    {
+        return $this->timezone;
+    }
+
+    public function getStartOfMonth(): DateTime
+    {
+        $date = $this->createDateTime('first day of this month');
+        $date->setTime(0, 0, 0);
+
+        return $date;
+    }
+
+    public function getStartOfWeek(?DateTime $date = null): DateTime
+    {
+        if (null === $date) {
+            $date = $this->createDateTime('now');
+        }
+
+        return $this->createWeekDateTime($date->format('Y'), $date->format('W'), 1, 0, 0, 0);
+    }
+
+    public function getEndOfWeek(?DateTime $date = null): DateTime
+    {
+        if (null === $date) {
+            $date = $this->createDateTime('now');
+        }
+
+        return $this->createWeekDateTime($date->format('Y'), $date->format('W'), 7, 23, 59, 59);
+    }
+
+    public function getEndOfMonth(): DateTime
+    {
+        $date = $this->createDateTime('last day of this month');
+        $date->setTime(23, 59, 59);
+
+        return $date;
+    }
+
+    private function createWeekDateTime($year, $week, $day, $hour, $minute, $second)
+    {
+        $date = new DateTime('now', $this->getTimezone());
+        $date->setISODate($year, $week, $day);
+        $date->setTime($hour, $minute, $second);
+
+        return $date;
+    }
+
+    public function createDateTime(string $datetime = 'now'): DateTime
+    {
+        $date = new DateTime($datetime, $this->getTimezone());
+
+        return $date;
+    }
+
+    /**
+     * @param string $format
+     * @param null|string $datetime
+     * @return bool|DateTime
+     */
+    public function createDateTimeFromFormat(string $format, ?string $datetime = 'now')
+    {
+        $date = DateTime::createFromFormat($format, $datetime, $this->getTimezone());
+
+        return $date;
+    }
+}