remindcomparemanager.php

<?php
 
namespace Bitrix\Calendar\Core\Managers\Compare;
 
use Bitrix\Calendar\Core\Base\Property;
use Bitrix\Calendar\Core\Event\Properties\Remind;
use Bitrix\Calendar\Core\Event\Properties\RemindCollection;
use Bitrix\Calendar\Core\Event\Tools\PropertyException;
 
class RemindCompareManager implements CompareManager
{
    protected $currentCollection;
    protected $originalCollection;
    protected $diff;
    protected $isEqual = true;
 
    public function __construct(RemindCollection $currentCollection, RemindCollection $originalCollection)
    {
        $this->currentCollection = $currentCollection;
        $this->originalCollection = $originalCollection;
 
        $this->compare();
    }
 
    public static function createInstance(
        RemindCollection $currentCollection,
        RemindCollection $originalCollection
    ): RemindCompareManager
    {
        return new self($currentCollection, $originalCollection);
    }
 
    protected function compare(): void
    {
        $this->diff = array_udiff(
            $this->currentCollection->getCollection(),
            $this->originalCollection->getCollection(),
            [$this, 'compareHandler']
        );
 
        if (
            $this->diff
            || $this->originalCollection->count() !== $this->currentCollection->count()
        )
        {
            $this->isEqual = false;
        }
    }
 
    public function getDiff(): array
    {
        return $this->diff;
    }
 
    public function hasDiff(): bool
    {
        return (bool)$this->diff;
    }
 
    public function getDiffCollection(): RemindCollection
    {
        return new RemindCollection($this->diff);
    }
 
    public function isEqual(): bool
    {
        return $this->isEqual;
    }
 
    private function compareHandler(Remind $current, Remind $original): int
    {
        return $current->getSpecificTime()->getTimestamp() <=> $original->getSpecificTime()->getTimestamp();
    }
}