<?php

namespace App\MetadataResolver;

use GuzzleHttp\Client;
use GuzzleHttp\Cookie\CookieJar;

class NarouResolver implements Resolver
{
    /**
     * @var Client
     */
    private $client;
    /**
     * @var OGPResolver
     */
    private $ogpResolver;

    public function __construct(Client $client, OGPResolver $ogpResolver)
    {
        $this->client = $client;
        $this->ogpResolver = $ogpResolver;
    }

    public function resolve(string $url): Metadata
    {
        $cookieJar = CookieJar::fromArray(['over18' => 'yes'], '.syosetu.com');

        $res = $this->client->get($url, ['cookies' => $cookieJar]);
        $metadata = $this->ogpResolver->parse($res->getBody());
        $metadata->description = '';

        $dom = new \DOMDocument();
        @$dom->loadHTML(mb_convert_encoding($res->getBody(), 'HTML-ENTITIES', 'ASCII,JIS,UTF-8,eucJP-win,SJIS-win'));
        $xpath = new \DOMXPath($dom);

        $description = [];

        // 作者名
        $writerNodes = $xpath->query('//*[contains(@class, "novel_writername")]');
        if ($writerNodes->length !== 0 && !empty($writerNodes->item(0)->textContent)) {
            $description[] = trim($writerNodes->item(0)->textContent);
        }

        // あらすじ
        $exNodes = $xpath->query('//*[@id="novel_ex"]');
        if ($exNodes->length !== 0 && !empty($exNodes->item(0)->textContent)) {
            $summary = trim($exNodes->item(0)->textContent);
            $description[] = mb_strimwidth($summary, 0, 101, '…'); // 100 + '…'(1)
        }

        $metadata->description = implode(' / ', $description);

        return $metadata;
    }
}
