<?php

namespace App\Libraries\MyCrawler;

use Symfony\Component\DomCrawler\Crawler;
use App\Libraries\MyStorage\Mangboard\FileLibrary as MyStorageLibrary;
use App\Libraries\MyStorage\Mangboard\BoardsLibrary;
use App\Libraries\MyStorage\Mangboard\BoardLibrary;
use App\Libraries\MySocket\WebLibrary as MySocketLibrary;
use App\Entities\Mangboard\UserEntity;
use App\Traits\FileTrait;

class YamapLibrary extends MyCrawlerLibrary
{
    use FileTrait;
    private $_user_entity = null;
    private $_boards_library = null;
    private $_board_library = null;
    private $_file_librarys = [];
    public function __construct()
    {
        parent::__construct();
    }
    final protected function getMySocket(): mixed
    {
        if ($this->_mySocket === null) {
            $this->_mySocket = new MySocketLibrary(getenv('yamap.host.url'));
        }
        return $this->_mySocket;
    }
    final protected function getMyStorage(): mixed
    {
        if ($this->_myStorage === null) {
            $this->_myStorage = new MyStorageLibrary(getenv('yamap.storage.upload.path'));
            $this->_myStorage->setBoardsEntity($this->getBoardsLibrary()->getEntity());
            $this->_myStorage->setUserEntity($this->getUserEntity());
        }
        return $this->_myStorage;
    }
    public function getBoardsLibrary(): BoardsLibrary
    {
        if ($this->_boards_library === null) {
            $this->_boards_library = new BoardsLibrary(
                getenv('yamap.storage.board.name'),
                $this->getUserEntity()
            );
        }
        return $this->_boards_library;
    }
    public function getBoardLibrary(): BoardLibrary
    {
        if ($this->_board_library === null) {
            $this->_board_library = new BoardLibrary(
                $this->getBoardsLibrary()->getEntity(),
                $this->getUserEntity()
            );
        }
        return $this->_board_library;
    }
    public function getUserEntity(): UserEntity
    {
        if ($this->_user_entity === null) {
            throw new \Exception("사용자정보가 없습니다.");
        }
        return $this->_user_entity;
    }
    public function setUserEntity(UserEntity $_user_entity): void
    {
        $this->_user_entity = $_user_entity;
    }

    private function save(int $file_sequence, string $mediaType, string $file_name, string $content): void
    {
        $this->getMyStorage()->setOriginName($file_name);
        $this->getMyStorage()->setOriginContent($content);
        $this->getMyStorage()->setOriginType($mediaType);
        $this->getMyStorage()->setOriginSequence($file_sequence);
        $this->_file_librarys[] = $this->getMyStorage()->save();
    }
    //Yamap ViewPage의 이미지나영상데이터가 있으면 Dodownload 한다.
    private function download(string $mediaType, string $url): array
    {
        $file_names = explode('/', $url);
        if (!is_array($file_names) || !count($file_names)) {
            throw new \Exception("URL이 파일명 형식이 아닙니다 : " . $this->getMySocket()->getHost() . $url);
        }
        $file_name = array_pop($file_names);
        $temps = explode(".", $file_name);
        $file_ext = array_pop($temps);
        if (!$this->isFileType($file_ext, $mediaType)) {
            throw new \Exception("파일명 형식이 {$mediaType}가 아닙니다");
        }
        $content = $this->getMySocket()->getContent($url);
        log_message("notice", "{$file_name} 파일이 다운로드되었습니다!");
        return array($file_name, $content);
    }
    private function mediaContent(array $urls): void
    {
        $file_sequence = 1;
        $this->_file_librarys = []; //CreateBoard에서 사용을 위해 DetailPage마다 초기화
        foreach ($urls as $mediaType => $url) {
            try {
                list($file_name, $content) = $this->download($mediaType, $url);
                $this->save($file_sequence, $mediaType, $file_name, $content);
                $file_sequence++;
                log_message("notice", __FUNCTION__ . " OriginType->{$mediaType} 작업 완료");
            } catch (\Exception $e) {
                log_message("warning", sprintf(
                    "\n---%s,OriginType->%s 오류---\n%s\n-----------------------------------------\n",
                    __FUNCTION__,
                    $mediaType,
                    $e->getMessage()
                ));
            }
        }
        if (!count($this->_file_librarys)) {
            throw new \Exception("Download된 Content가 없습니다.");
        }
    }
    //Yamap ViewPage의 이미지나영상데이터가 있으면 URL과MediaType을 가져온다
    private function getUrlsByDetailPageMediaType(string $mediaType, Crawler $selector, array $options, array $urls = []): array
    {
        $selector->filter($options["tag"])->each(
            function (Crawler $node) use (&$mediaType, &$options, &$urls): void {
                log_message("debug", sprintf(
                    "getNode->%s[%s]",
                    $options["tag"],
                    $node->attr($options['attr'])
                ));
                $urls[$mediaType] = $node->attr($options["attr"]);
            }
        );
        return $urls;
    }
    private function detailPage(array $listInfo): array
    {
        $response = $this->getMySocket()->getContent($listInfo['detail_url']);
        $selector = $this->getSelector($response, getenv("yamap.view.content.tag"));
        $urls = $this->getUrlsByDetailPageMediaType("image", $selector, ["tag" => "img", "attr" => "src"]);
        $urls = $this->getUrlsByDetailPageMediaType("video", $selector, ["tag" => "video", "attr" => "src"], $urls);
        log_message("notice", sprintf("\n-----------%s 작업완료--------\n%s\n-----------------------\n", __FUNCTION__, var_export($urls, true)));
        return $urls;
    }
    private function mainPage(string $url): array
    {
        $listInfos   = [];
        $response = $this->getMySocket()->getContent($url);
        $selector = $this->getSelector($response, getenv("yamap.list.tag"));
        //div.bbs_item를 가진 객체를 찾아서 같은 형식의 객체(sibling)를 배열로 넘김
        // log_message("debug", sprintf("\n-------------MainPage------------\n%s\n--------------------------\n", $selector->html()));
        $selector->filter(getenv("yamap.list.item.tag"))->each(
            function (Crawler $node) use (&$listInfos): void {
                //bbs_item에서 span.g_nickname 객체를 찾아서 작성자가 "관리자" 아닌지 확인 후 Return Bool
                $nickname = $node->filter(getenv("yamap.list.item.nickname.tag"))->text();
                $hit      = $node->filter(getenv("yamap.list.item.hit.tag"))->text();
                $date     = $node->filter(getenv("yamap.list.item.date.tag"))->text();
                if ($nickname != getenv("yamap.list.item.nickname.except")) {
                    //작성자가 "관리자"가 아니 게시물이면 해당 bbs_item에서 a.list_subject 객체를 찾아서
                    $link_node  = $node->filter(getenv("yamap.list.item.link.tag"));
                    $detail_url = $link_node->attr("href");
                    $title      = $link_node->children()->last()->text();
                    $listInfos[]    = ['title' => $title, 'nickname' => $nickname, 'detail_url' => $detail_url, 'date' => $date, 'hit' => $hit];
                }
            }
        );
        if (!count($listInfos)) {
            throw new \Exception("Target URL이 없습니다.");
        }
        log_message("notice", __FUNCTION__ . " 작업 완료");
        return $listInfos;
    }
    public function execute(): void
    {
        if ($this->getDebug()) {
            $listInfos = [
                'title'      => getenv("yamap.view.test.title"),
                'nickname'   => getenv("yamap.view.test.nickname"),
                'detail_url' => getenv("yamap.view.test.url"),
                'time'       => date("Y-m-d H:i:s"),
                'hit'        => 1,
            ];
        } else {
            $listInfos = $this->mainPage(getenv("yamap.list.url"));
        }
        //Limit가 0이면 $listInfos 갯수만큼 다하고, LIMIT 갯수 혹은 item의 갯수중 작은수만큼 한다.
        $max_limit = intval(getenv("yamap.list.max_limit"));
        if ($max_limit) {
            $max_limit = count($listInfos) <= $max_limit ? count($listInfos) : $max_limit;
        } else {
            $max_limit = count($listInfos);
        }
        $i = 1;
        foreach ($listInfos as $listInfo) {
            if ($i <= $max_limit) {
                try {
                    log_message("notice", "게시물 {$i}번째 {$listInfo["nickname"]} 작업시작");
                    $this->mediaContent($this->detailPage($listInfo));
                    //File DB 및 Board DB 등록작업
                    $this->getBoardLibrary()->create($i, $listInfo, $this->_file_librarys);
                    log_message("notice", "게시물 {$i}번째 {$listInfo["nickname"]} 작업완료.");
                    $i++;
                } catch (\Exception $e) {
                    log_message("debug", $e->getMessage());
                }
            }
        }
        log_message("notice", "Crawler->" . __FUNCTION__ . " 작업이 완료되었습니다.");
    }
}