<?php

namespace App\Libraries\MyCrawler;

use Symfony\Component\DomCrawler\Crawler;

class MyCrawlerLibrary
{
    private $_debug = false;

    public function __construct() {}

    final public function getDebug(): bool
    {
        return $this->_debug;
    }
    final public function setDebug(bool $debug): void
    {
        $this->_debug = $debug;
    }

    final public function createCrawler($html)
    {
        return new Crawler($html);
    }

    final public function getInnerHTML(string $html, $tag = false)
    {
        return $tag ? $this->createCrawler($html)->filter($tag)->html() : $this->createCrawler($html)->html();
    }

    public function getLinks(Crawler $crawler, array $options = ["tag" => "a", "attr" => "href"]): array
    {
        $links = $crawler->filter($options["tag"])->each(
            function (Crawler $node) use (&$options) {
                return [
                    "anchor" => $node->text(),
                    "href" => $node->attr($options["attr"])
                ];
            }
        );
        foreach ($links as $link) {
            log_message("debug", "Link-> " . $link['href']);
        }
        return $links;
    }

    public function getImages(Crawler $crawler, array $options = ["tag" => "img", "attr" => "src"]): array
    {
        $images = $crawler->filter($options["tag"])->each(
            function (Crawler $node) use (&$options) {
                return [
                    "alt" => $node->attr('alt'),
                    "src" => $node->attr($options["attr"])
                ];
            }
        );
        foreach ($images as $image) {
            log_message("debug", "Image-> " . $image['src']);
        }
        return $images;
    }

    public function getVideos(Crawler $crawler, array $options = ["tag" => "video", "attr" => "src"]): array
    {
        $videos = $crawler->filter($options["tag"])->each(
            function (Crawler $node) use (&$options) {
                return [
                    "alt" => $node->attr('alt'),
                    "src" => $node->attr($options["attr"])
                ];
            }
        );
        foreach ($videos as $video) {
            log_message("debug", "Video-> " . $video['src']);
        }
        return $videos;
    }
}