<?php

namespace App\Libraries;

use App\Libraries\MyWeb\MyWebLibrary;
use App\Libraries\MyStorage\MyStorageLibrary;
use App\Libraries\MyCrawler\MyCrawlerLibrary;
use Symfony\Component\DomCrawler\Crawler;

class YamapLibrary
{
    private $_web = null;
    private $_storage = null;
    private $_crawler = null;
    private $_debug = false;

    private $_host = null;
    public function __construct(string $host)
    {
        $this->_host = $host;
    }

    public function getMyWeb()
    {
        if ($this->_web === null) {
            $this->_web = new MyWebLibrary($this->getHost());
            $this->_web->setDebug($this->getDebug());
        }
        return $this->_web;
    }
    public function getMyStorage()
    {
        if ($this->_storage === null) {
            $this->_storage = new MyStorageLibrary();
            $this->_storage->setDebug($this->getDebug());
        }
        return $this->_storage;
    }
    public function getMyCrawler()
    {
        if ($this->_crawler === null) {
            $this->_crawler = new MyCrawlerLibrary();
            $this->_crawler->setDebug($this->getDebug());
        }
        return $this->_crawler;
    }

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

    public function getLinks(Crawler $crawler): array
    {
        //div.bbs_item를 가진 객체를 찾아서 같은 형식의 객체(sibling)를 배열로 넘김
        $bbs_items  = $crawler->filter("div.bbs_item")->first()->siblings();
        $links = [];
        foreach ($bbs_items as $bbs_item) {
            //bbs_item에서 span.g_nickname 객체를 찾아서 "관리자"가 작성한것이 아닌것을 확인 후
            $this->getMyCrawler()->createCrawler($bbs_item)->filter("span.g_nickname")->each(function (Crawler $node) use (&$links, &$bbs_item) {
                if ($node->text() != "관리자") {
                    //다시 bbs_item에서 a.list_subject 객체를 찾아서 Links에 추가한다.
                    foreach ($this->getMyCrawler()->getLinks($this->getMyCrawler()->createCrawler($bbs_item), ["tag" => ".list_subject", "attr" => "href"]) as $link) {
                        array_push($links, $link);
                    }
                }
            });
        }
        return $links;
    }

    public function getImages(Crawler $crawler, array $options = ["tag" => "img", "attr" => "src"]): array
    {
        $images = $this->getMyCrawler()->getImages($crawler, $options);
        foreach ($images as $image) {
            $this->download($image['src']);
        }
        return $images;
    }

    public function getVideos(Crawler $crawler, array $options = ["tag" => "video", "attr" => "src"]): array
    {
        $videos = $this->getMyCrawler()->getVideos($crawler, $options);
        foreach ($videos as $video) {
            $this->download($video['src']);
        }
        return $videos;
    }

    // 파일 다운로드 메서드
    final public function download($url)
    {
        try {
            $fileNames = explode('/', $url);
            if (!is_array($fileNames) || !count($fileNames)) {
                throw new \Exception("Download URL Error:" . $url);
            }
            if (!is_dir($this->getMyStorage()->getPath())) {
                if (!mkdir($this->getMyStorage()->getPath())) {
                    throw new \Exception("Make Directory Error:" . $this->getMyStorage()->getPath());
                }
            }
            $fullPath = $this->getMyStorage()->getPath() . DIRECTORY_SEPARATOR . array_pop($fileNames);
            log_message("debug", "FullPath-> " . $fullPath);
            if (!$this->getDebug()) {
                $response = $this->getMyWeb()->getClient()->get($this->getMyWeb()->gethost() . $url, [
                    'cookies' => $this->getMyWeb()->getCookieJar(),
                    'sink'    => $fullPath,
                ]);
                if ($response->getStatusCode() == 200) {
                    log_message("info", "파일이 성공적으로 다운로드되었습니다!");
                    return true;
                } else {
                    log_message("info", "파일 다운로드 실패: " . $response->getStatusCode());
                    return false;
                }
            }
            return true;
        } catch (\Exception $e) {
            log_message("error", "파일 다운로드 중 오류 발생: " . $e->getMessage());
            return false;
        }
    }

    public function getLinksByMainPage(string $url): array
    {
        $html    =  $this->getMyWeb()->getContent($url);;
        $crawler = $this->getMyCrawler()->createCrawler($html)->filter("div.bbs_list")->first();;
        $links = $this->getLinks($crawler,);
        if (!count($links)) {
            throw new \Exception("Target Links가 없습니다.");
        }
        return $links;
    }
    public function getCrawlerByDetailPage(string $url): Crawler
    {
        log_message("debug", "Target-> " . $url);
        $html    =  $this->getMyWeb()->getContent($url);;
        return $this->getMyCrawler()->createCrawler($html)->filter("div.contents")->first();
    }
}