<?php

namespace app\master\service\push;

use app\master\service\XmlBuilder;

/**
 * EBSCO 推送器
 * 为每篇文章生成 XML，连同 PDF 通过 FTP 上传到 EBSCO。
 * 逻辑迁移自 Datebase::pushXmlToEp / pushFtpForEp。
 */
class EbscoPusher extends AbstractPusher
{
    public function code()
    {
        return 'ebsco';
    }

    public function label()
    {
        return 'EBSCO';
    }

    public function pushStage($stage_id, array $options = [])
    {
        $stage_info = $this->journal_stage_obj->where("journal_stage_id", $stage_id)->find();
        $list = $this->article_obj->where("journal_stage_id", $stage_id)->select();
        $journal_info = $this->journal_obj->where("journal_id", $stage_info['journal_id'])->find();
        $count = 0;
        foreach ($list as $v) {
            $local_file = XmlBuilder::forArticle($v['article_id']);
            $file = substr($v['doi'], strpos($v['doi'], "/") + 1) . ".xml";
            $remote_file = "/" . $journal_info['title'] . "/" . $stage_info['stage_year'] . "v" . $stage_info['stage_vol'] . "n" . $stage_info['stage_no'] . "-" . $file;
            $this->pushFtp($remote_file, $local_file);
            $localPdf = ROOT_PATH . "public/articlePDF/" . $v['file_pdf'];
            $remotePdf = "/" . $journal_info['title'] . "/" . $stage_info['stage_year'] . "v" . $stage_info['stage_vol'] . "n" . $stage_info['stage_no'] . "-" . substr($v['doi'], strpos($v['doi'], "/") + 1) . ".pdf";
            $this->pushFtp($remotePdf, $localPdf);
            $count++;
        }
        return PushResult::success("EBSCO 已上传 {$count} 篇文章的 XML/PDF");
    }

    private function pushFtp($remote_file, $local_file)
    {
        $cred = $this->cred('ebsco');
        $con = ftp_connect($cred['host'], $cred['port']);
        if (!$con) {
            throw new \Exception('EBSCO FTP 连接失败');
        }
        $res = ftp_login($con, $cred['user'], $cred['pass']);
        if (!$res) {
            ftp_close($con);
            throw new \Exception('EBSCO FTP 登录失败');
        }
        ftp_pasv($con, true);
        $data = ftp_put($con, $remote_file, $local_file, FTP_BINARY);
        ftp_close($con);
        if (!$data) {
            throw new \Exception('EBSCO FTP 上传失败: ' . $remote_file);
        }
    }
}