<?php

namespace App\MetadataResolver;

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

class MelonbooksResolver 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(['AUTH_ADULT' => '1'], 'www.melonbooks.co.jp');

        $res = $this->client->get($url, ['cookies' => $cookieJar]);
        if ($res->getStatusCode() === 200) {
            $metadata = $this->ogpResolver->parse($res->getBody());

            $dom = new \DOMDocument();
            @$dom->loadHTML(mb_convert_encoding($res->getBody(), 'HTML-ENTITIES', 'UTF-8'));
            $xpath = new \DOMXPath($dom);
            $descriptionNodelist = $xpath->query('//div[@id="description"]//p');
            $specialDescriptionNodelist = $xpath->query('//div[@id="special_description"]//p');

            // censoredフラグの除去
            if (mb_strpos($metadata->image, '&c=1') !== false) {
                $metadata->image = preg_replace('/&c=1/u', '', $metadata->image);
            }

            // 抽出
            preg_match('~^(.+)（(.+)）の通販・購入はメロンブックス$~', $metadata->title, $match);
            $title = $match[1];
            $maker = $match[2];

            // 整形
            $description = 'サークル: ' . $maker . "\n";

            if ($specialDescriptionNodelist->length !== 0) {
                $description .= trim(str_replace('<br>', "\n", $specialDescriptionNodelist->item(0)->nodeValue)) . "\n";
                if ($specialDescriptionNodelist->length === 2) {
                    $description .= "\n";
                    $description .= trim(str_replace('<br>', "\n", $specialDescriptionNodelist->item(1)->nodeValue)) . "\n";
                }
            }

            if ($descriptionNodelist->length !== 0) {
                $description .= trim(str_replace('<br>', "\n", $descriptionNodelist->item(0)->nodeValue));
            }

            $metadata->title = $title;
            $metadata->description = trim($description);

            return $metadata;
        } else {
            throw new \RuntimeException("{$res->getStatusCode()}: $url");
        }
    }
}