AlecRabbit\Spinner\Core\SpinnerCore

Complexity

Total Complexity

7

Size/Duplication

Total Lines	36
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	assertOutput()	0	9	5
A	refineOutput()	0	7	2

<?php declare(strict_types=1);

namespace AlecRabbit\Spinner\Core;

use AlecRabbit\Spinner\Core\Adapters\EchoOutputAdapter;
use AlecRabbit\Spinner\Core\Contracts\Frames;
use AlecRabbit\Spinner\Core\Contracts\SpinnerInterface;
use AlecRabbit\Spinner\Core\Contracts\SpinnerOutputInterface;
use AlecRabbit\Spinner\Core\Contracts\StylesInterface;
use AlecRabbit\Spinner\Settings\Contracts\Defaults;
use function AlecRabbit\typeOf;

abstract class SpinnerCore implements SpinnerInterface
{
    protected const EMPTY_STRING = Defaults::EMPTY_STRING;

    protected const INTERVAL = Defaults::DEFAULT_INTERVAL;
    protected const FRAMES = Frames::BASE;
    protected const STYLES = StylesInterface::STYLING_DISABLED;

    /** @var null|SpinnerOutputInterface */
    protected $output;

    /**
     * @param null|false|SpinnerOutputInterface $output
     * @return null|SpinnerOutputInterface
     */
    protected function refineOutput($output): ?SpinnerOutputInterface
    {
        $this->assertOutput($output);
        if (false === $output) {
            return null;
        }
        return $output ?? new EchoOutputAdapter();
    }

    /**
     * @param mixed $output
     */
    protected function assertOutput($output): void
    {
        if (null !== $output && false !== $output && !$output instanceof SpinnerOutputInterface) {
            $typeOrValue =
                true === $output ? 'true' : typeOf($output);
            throw new \InvalidArgumentException(
                'Incorrect parameter: ' .
                '[null|false|' . SpinnerOutputInterface::class . '] expected'
                . ' "' . $typeOrValue . '" given.'
            );
        }
    }
}