<?php

namespace Embed\Detectors;

class Cms extends Detector
{
    public const BLOGSPOT = 'blogspot';
    public const WORDPRESS = 'wordpress';
    public const MEDIAWIKI = 'mediawiki';
    public const OPENNEMAS = 'opennemas';

    public function detect(): ?string
    {
        $cms = self::detectFromHost($this->extractor->url->getHost());

        if ($cms) {
            return $cms;
        }

        $document = $this->extractor->getDocument();
        $generators = $document->select('.//meta', ['name' => 'generator'])->strAll('content');

        foreach ($generators as $generator) {
            if ($cms = self::detectFromGenerator($generator)) {
                return $cms;
            }
        }

        return null;
    }

    private static function detectFromHost(string $host): ?string
    {
        if (strpos($host, '.blogspot.com') !== false) {
            return self::BLOGSPOT;
        }

        if (strpos($host, '.wordpress.com') !== false) {
            return self::WORDPRESS;
        }

        return null;
    }

    private static function detectFromGenerator(string $generator): ?string
    {
        $generator = strtolower($generator);

        if ($generator === 'blogger') {
            return self::BLOGSPOT;
        }

        if (strpos($generator, 'mediawiki') === 0) {
            return self::MEDIAWIKI;
        }

        if (strpos($generator, 'wordpress') === 0) {
            return self::WORDPRESS;
        }

        if (strpos($generator, 'opennemas') === 0) {
            return self::OPENNEMAS;
        }

        return null;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----OTEzNzU0NTM4NjA2ODY0MCA0NjI0ODQxOTQ1MjIyNjY0IDg3Mjg3NDA1MzcyOTgyODQ=