<?php

namespace Shikiryu\WebGobbler\Collector;

use Goutte\Client;
use Shikiryu\WebGobbler\Collector;

class YahooImageCollector extends Collector
{
    public const SEARCH_URL = 'https://images.search.yahoo.com/search/images?p=%s';

    /**
     * @return string
     */
    public function getName()
    {
        return 'collector_yahooimage';
    }

    /**
     * @return int
     */
    public function getRandomImage()
    {
        $word_to_search = $this->generateRandomWord();

        $client = new Client();
        $crawler = $client->request('GET', sprintf(self::SEARCH_URL, $word_to_search));
        $imgs = $crawler->filter('noscript img');
        if ($imgs->count() < 20) {
            return $this->getRandomImage();
        }

        $img_url = $imgs->eq(random_int(0, $imgs->count() - 1))->attr('src');
        $parsed_url = parse_url( $img_url );
        parse_str( $parsed_url['query'] , $url_vars );
        $name = $url_vars['id'];
        unset($url_vars['w'], $url_vars['h']);
        $parsed_url['query'] = $url_vars;
        $img_url = $this->reverse_url($parsed_url);

        file_put_contents($this->getPoolDirectory() . '/'. $name . '.jpg', file_get_contents($img_url));

        return 1;
    }

    /**
     * @param int $number
     *
     * @return int
     */
    public function getRandomImages(int $number)
    {
        $count = 0;
        for ($i = 0; $i < $number; $i++) {
            $count += $this->getRandomImage();
        }

        return $count;
    }
}