<?php

namespace App\Services;

use Illuminate\Support\Facades\Http;

class OgImageResolver
{
    public function resolve(string $pageUrl): ?string
    {
        try {
            $response = Http::withHeaders([
                'User-Agent' => 'Mozilla/5.0 (compatible; DredgeNewsBot/1.0)',
            ])->timeout(8)->get($pageUrl);

            if (! $response->successful()) {
                return null;
            }

            libxml_use_internal_errors(true); // suppress warnings from imperfect HTML
            $dom = new \DOMDocument();
            $dom->loadHTML($response->body());
            $xpath = new \DOMXPath($dom);

            foreach (['og:image', 'twitter:image', 'twitter:image:src'] as $property) {
                $node = $xpath->query("//meta[@property='{$property}']/@content")->item(0)
                    ?? $xpath->query("//meta[@name='{$property}']/@content")->item(0);

                if ($node && filled($node->nodeValue)) {
                    return $node->nodeValue;
                }
            }

            return null;
        } catch (\Throwable $e) {
            report($e);
            return null;
        }
    }
}