Passed
Branch master (576d7a)
by Paweł
01:36
created

HrefLang::addHrefLang()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 12
Code Lines 7

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 2
eloc 7
nc 2
nop 2
dl 0
loc 12
rs 10
c 0
b 0
f 0
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<?php
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namespace Wszetko\Sitemap\Items;
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use InvalidArgumentException;
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/**
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 * Class HrefLang
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 *
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 * @package Wszetko\Sitemap\Items
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 */
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class HrefLang extends Extension
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{
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    /**
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     * Name of Namescapce
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     */
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    const NAMESPACE_NAME = 'xhtml';
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    /**
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     * Namespace URL
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     */
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    const NAMESPACE_URL = 'http://www.w3.org/1999/xhtml';
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    /**
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     * @var array
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     */
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    private $hrefLang = [];
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    /**
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     * @param string $hrefLang
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     * @param string $href
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     *
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     * @return self
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     */
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    public function __construct(string $hrefLang, string $href)
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    {
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        return $this->addHrefLang($hrefLang, $href);
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    }
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    /**
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     * @param string $hrefLang
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     * @param string $href
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     *
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     * @return self
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     */
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    public function addHrefLang(string $hrefLang, string $href): self
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    {
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        preg_match_all("/^(?'hreflang'([a-z]{2}|(x)){1}((-){1}([A-Za-z]{2}|[A-Z]{1}([a-z]{1}|[a-z]{3})|(default)))?)$/",
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            $hrefLang, $matches);
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        if (!empty($matches['hreflang'])) {
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            $this->hrefLang[$hrefLang] = $href;
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        } else {
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            throw new InvalidArgumentException('Invalid hreflang parameter.');
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        }
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        return $this;
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    }
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    /**
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     * @return array
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     */
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    public function toArray(): array
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    {
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        $array = [
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            '_namespace' => static::NAMESPACE_NAME,
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            '_element' => 'link',
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            'link' => []
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        ];
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        foreach ($this->getHrefLangs() as $hreflang => $href) {
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            $array['link'][] = [
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                '_attributes' => [
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                    'rel' => 'alternate',
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                    'hreflang' => $hreflang,
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                    'href' => $href
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                ]
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            ];
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        }
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        return $array;
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    }
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    /**
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     * @return array
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     */
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    public function getHrefLangs(): array
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    {
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        foreach ($this->hrefLang as &$href) {
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            $href = $this->getDomain() . $href;
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        }
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        return $this->hrefLang;
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    }
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}
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