<?php

namespace Embed\Detectors;

class Keywords extends Detector
{
    public function detect(): array
    {
        $tags = [];
        $metas = $this->extractor->getMetas();
        $ld = $this->extractor->getLinkedData();

        $types = [
            'keywords',
            'og:video:tag',
            'og:article:tag',
            'og:video:tag',
            'og:book:tag',
            'lp.article:section',
            'dcterms.subject',
        ];

        foreach ($types as $type) {
            $value = $metas->strAll($type);

            if ($value) {
                $tags = array_merge($tags, self::toArray($value));
            }
        }

        $value = $ld->strAll('keywords');

        if ($value) {
            $tags = array_merge($tags, self::toArray($value));
        }

        $tags = array_map('mb_strtolower', $tags);
        $tags = array_unique($tags);
        $tags = array_filter($tags);
        $tags = array_values($tags);

        return $tags;
    }

    private static function toArray(array $keywords): array
    {
        $all = [];

        foreach ($keywords as $keyword) {
            $tags = explode(',', $keyword);
            $tags = array_map('trim', $tags);
            $tags = array_filter(
                $tags,
                fn ($value) => !empty($value) && substr($value, -3) !== '...'
            );

            $all = array_merge($all, $tags);
        }

        return $all;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----Nzg1NzA1NTYzODgyMTUgOTMwNzMyNTMxOTg4MDgxNCAyNDM2NTE5MDYwMTY5ODM1