Env::__construct()   A
last analyzed

Complexity

Conditions 1
Paths 1

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 3
CRAP Score 1

Importance

Changes 0
Metric Value
dl 0
loc 4
c 0
b 0
f 0
rs 10
ccs 3
cts 3
cp 1
cc 1
eloc 2
nc 1
nop 0
crap 1
1
<?php
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declare(strict_types = 1);
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/*
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 * This file is part of the skeleton package.
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 *
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 * (c) Gennady Knyazkin <[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 Gennadyx\Skeleton\VarSource;
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/**
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 * Class Env
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 *
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 * @author Gennady Knyazkin <[email protected]>
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 */
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class Env extends AbstractSource
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{
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    /**
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     * Template for sprintf
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     */
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    const TEMPLATE = 'COMPOSER_DEFAULT_%s';
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    /**
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     * @var array
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     */
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    private $customEnv;
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    /**
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     * Env constructor.
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     *
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     */
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    public function __construct()
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    {
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        $this->customEnv = self::getCustomEnv();
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    }
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    /**
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     * {@inheritdoc}
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     */
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    protected function find(string $name)
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    {
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        $value = $this->getEnv(sprintf(self::TEMPLATE, strtoupper($name)));
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        if (null === $value && isset($this->customEnv[$name])) {
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            $value = $this->getEnv($this->customEnv[$name]);
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        }
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        return $value;
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    }
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    /**
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     * @param string $env
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     *
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     * @return string|null
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     */
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    private function getEnv(string $env)
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    {
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        $value = getenv($env);
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        if ($this->checkString($value)) {
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            return $value;
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        } elseif ($this->checkArray($value)) {
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            return array_shift($value);
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        }
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        return null;
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    }
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    /**
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     * Check is valid string
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     *
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     * @param mixed $value
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     *
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     * @return bool
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     */
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    private function checkString($value): bool
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    {
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        return is_string($value) && !empty($value);
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    }
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    /**
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     * Check is valid array
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     *
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     * @param $value
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     *
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     * @return bool
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     */
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    private function checkArray($value): bool
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    {
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        if (!is_array($value)) {
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            return false;
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        }
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        $first = array_shift($value);
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        return $this->checkString($first);
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    }
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    /**
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     * @return array
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     */
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    private static function getCustomEnv(): array
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    {
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        return [
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            'vendor' => strpos(PHP_OS, 'WIN') === 0 ? 'USERNAME' : 'USER',
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        ];
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    }
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}
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