<?php

namespace Scraping;

use \Goutte\Client;

class Scraper
{
    public $links = [];

    public static function scrape($method, $url, $filters, $level){
        $client = new Client();

        $crawler = $client->request($method, $url);

        print str_pad('['.$level.']', $level*2, ' ', STR_PAD_LEFT).' '.$url."\n";

        // 1) Lista atti
        $crawler->filterXPath($filters[$level])->each(function ($node) use ($method, $filters, $level) {
            $new_url = $node->link()->getUri();
            $new_level = $level+1;

            //print str_pad('['.$new_level.']', $new_level*2, ' ', STR_PAD_RIGHT).' '.$new_url."\n";

            if ($new_level < count($filters)) {
                self::scrape($method, $new_url, $filters, $new_level);
            }
        });
    }
}