BaseComparator.php

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<?php

declare(strict_types=1);

namespace ILIAS\Filesystem\Finder\Comparator;

use InvalidArgumentException;

/******************************************************************************
 *
 * This file is part of ILIAS, a powerful learning management system.
 *
 * ILIAS is licensed with the GPL-3.0, you should have received a copy
 * of said license along with the source code.
 *
 * If this is not the case or you just want to try ILIAS, you'll find
 * us at:
 *      https://www.ilias.de
 *      https://github.com/ILIAS-eLearning
 *
 *****************************************************************************/

abstract class BaseComparator
{
    private string $target = '';
    private string $operator = '==';

    public function getTarget(): string
    {
        return $this->target;
    }

    public function setTarget(string $target): void
    {
        $this->target = $target;
    }

    public function getOperator(): string
    {
        return $this->operator;
    }

    public function setOperator(string $operator): void
    {
        if ($operator === '') {
            $operator = '==';
        }

        if (!in_array($operator, ['>', '<', '>=', '<=', '==', '!='])) {
            throw new InvalidArgumentException(sprintf('Invalid operator "%s".', $operator));
        }

        $this->operator = $operator;
    }

    public function test(string $test): bool
    {
        switch ($this->operator) {
            case '>':
                return $test > $this->target;

            case '>=':
                return $test >= $this->target;

            case '<':
                return $test < $this->target;

            case '<=':
                return $test <= $this->target;

            case '!=':
                return $test !== $this->target;
        }

        return $test === $this->target;
    }
}