<?php

namespace App\Libraries\MyCrawler;

use Symfony\Component\DomCrawler\Crawler;
use App\Libraries\CommonLibrary;

abstract class MyCrawlerLibrary extends CommonLibrary
{
    private $_mySocket = null;
    private $_myStorage = null;
    protected function __construct($mySocket, $myStorage)
    {
        parent::__construct();
        $this->_mySocket = $mySocket;
        $this->_myStorage = $myStorage;
    }

    abstract public function execute(): void;
    final protected function getMySocket(): mixed
    {
        if ($this->_mySocket === null) {
            throw new \Exception("MySocket이 지정되지 않았습니다.");
        }
        return $this->_mySocket;
    }
    final protected function getMyStorage(): mixed
    {
        if ($this->_myStorage === null) {
            throw new \Exception("MySocket이 지정되지 않았습니다.");
        }
        return $this->_myStorage;
    }

    final protected function getContent(string $url, string $tag): Crawler
    {
        $response = $this->getMySocket()->getContent($url);
        if (!$response) {
            throw new \Exception("getCrawler 실패:{$url}");
        }
        $crawler = new Crawler($response);
        return $crawler->filter($tag);
    }

    //Download한 파일 저장후 추가작업시 사용
    final protected function download(string $mediaType, Crawler $crawler, array $options, array $myStorageLibrarys = []): array
    {
        $nodes = [];
        $crawler->filter($options["tag"])->each(
            function (Crawler $node) use (&$options, &$nodes): void {
                log_message("debug", sprintf("getNode->%s[%s]", $options["tag"], $node->attr($options['attr'])));
                $nodes[] = $node;
            }
        );
        $file_sequence = 1;
        foreach ($nodes as $node) {
            try {
                list($fileName, $content) = $this->getMySocket()->download($node->attr($options["attr"]));
                $this->getMyStorage()->setOriginName($fileName);
                $this->getMyStorage()->setOriginContent($content);
                $this->getMyStorage()->setOriginType($mediaType);
                $this->getMyStorage()->setOriginSequence($file_sequence);
                $myStorageLibrarys[] = $this->getMyStorage()->save();
                $file_sequence++;
                log_message("notice", __FUNCTION__ . " OriginType->{$mediaType} 작업 완료");
            } catch (\Exception $e) {
                log_message("warning", sprintf(
                    "\n---%s,OriginType->%s 오류---\n%s\n-----------------------------------------\n",
                    __FUNCTION__,
                    $mediaType,
                    $e->getMessage()
                ));
            }
        }
        return $myStorageLibrarys;
    }
}