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1<?php
2namespace Apie\DateValueObjects\Concerns;
3
4use DateInterval;
5use DateTimeImmutable;
6use DateTimeInterface;
7
8/**
9 * Adds method to add day related methods to date value objects.
10 */
11trait CanHaveDayIntervals
12{
13    /**
14     * @see CanCreateInstanceFromDateTimeObject
15     */
16    abstract public static function createFromDateTimeObject(DateTimeInterface $dateTime): self;
17
18    /**
19     * @see IsDateValueObject
20     */
21    abstract public function toDate(): DateTimeImmutable;
22
23    /**
24     * @see IsDateValueObject
25     */
26    private int $day;
27
28    /**
29     * Creates a new date value object, but with a different day.
30     */
31    public function withDay(int $day): self
32    {
33        $date = $this->toDate();
34        $object = self::createFromDateTimeObject(
35            $date->setDate((int) $date->format('Y'), (int) $date->format('m'), $day)
36        );
37        $object->day = $day;
38        return $object;
39    }
40
41    /**
42     * Creates a new date value object with the next day.
43     */
44    public function tomorrow(): self
45    {
46        $date = $this->toDate();
47        return self::createFromDateTimeObject($date->add(new DateInterval('P1D')));
48    }
49
50    /**
51     * Creates a new date value object with the previous day.
52     */
53    public function yesterday(): self
54    {
55        $date = $this->toDate();
56        return self::createFromDateTimeObject($date->sub(new DateInterval('P1D')));
57    }
58}