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AbstractBouncer::subjectsFromString()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 6
Code Lines 4

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
eloc 4
dl 0
loc 6
rs 10
c 0
b 0
f 0
cc 1
nc 1
nop 1
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<?php
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declare(strict_types=1);
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/**
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 * This file is part of the theroadbunch/bouncer package.
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 *
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 * (c) Dan McAdams <[email protected]>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace RoadBunch\Bouncer;
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/**
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 * Class AbstractBouncer
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 *
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 * @author Dan McAdams <[email protected]>
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 */
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abstract class AbstractBouncer implements BouncerInterface
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{
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    /** @var string[] $subjectPool */
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    private array $subjectPool = [];
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    /**
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     * Provide an array of strings or a single string value.
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     * If a single string is provided, values will be extracted with the delimiter ';'
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     *
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     * @param string|string[] $subjects
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     */
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    public function __construct(array|string $subjects = [])
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    {
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        if (is_string($subjects)) {
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            $subjects = $this->subjectsFromString($subjects);
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        }
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        array_walk($subjects, [$this, 'add']);
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    }
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    public function has(string $subject): bool
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    {
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        return in_array($subject, $this->subjectPool);
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    }
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    public function add(string $subject): void
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    {
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        if (!$this->has($subject)) {
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            $this->subjectPool[] = $subject;
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        }
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    }
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    public function remove(string $subject): void
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    {
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        $key = array_search($subject, $this->subjectPool);
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        if ($key !== false) {
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            unset($this->subjectPool[$key]);
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        }
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    }
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    private function subjectsFromString(string $subjects): array
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    {
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        return array_filter(
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            explode(';', $subjects),
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            function ($subject) {
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                return !empty(trim($subject));
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            }
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        );
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    }
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}
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