<?php
/**
 * Created by PhpStorm.
 * User: liujin834
 * Date: 14/12/21
 * Time: 下午4:46
 */

namespace Westdc\Metadata;

use Zend\ServiceManager\ServiceManager;
use Zend\ServiceManager\ServiceManagerAwareInterface;
use Westdc\EventModel\AbstractEventManager;

class Dataset extends AbstractEventManager implements ServiceManagerAwareInterface{

    protected $serviceManager;

    private $db;

    public function setServiceManager(ServiceManager $serviceManager)
    {
        $this->serviceManager = $serviceManager;

        $this->init();

        return $this;
    }

    private function init()
    {
        $dbService = $this->serviceManager->get('Db');
        $this->db = $dbService->getPdo();
    }

    /**
     * 查询某个元数据的数据集信息（数据存储位置）
     * @param $uuid
     * @return mixed
     */
    public function fetch($uuid)
    {
        $sql = "SELECT * FROM dataset WHERE uuid=?";
        $sth = $this->db->prepare($sql);
        $sth ->execute(array($uuid));
        return $sth->fetch();
    }

    /**
     *
     * @param $uuid
     * @param $host
     * @param $path
     * @return bool|string
     */
    public function record($uuid,$host,$path)
    {
        $tools = $this->serviceManager->get('Tools');

        if( false == $tools->isUUID($uuid) )
            return "Invalid UUID";

        $data = $this->fetch($uuid);

        if(isset($data['id']) && $data['id'] > 0)
            return $this->update($uuid,$host,$path);
        else
            return $this->insert($uuid,$host,$path);

    }

    /**
     * @param $uuid
     * @param $host
     * @param $path
     * @return bool
     */
    public function update($uuid,$host,$path)
    {
        $sql = "UPDATE dataset SET host='$host',path='$path' WHERE uuid='$uuid'";
        if($this->db->exec($sql) > 0)
        {
            $this->proftpUpload($uuid,$host);
            $this->getEventManager()->trigger('dataset.update.success', $this, compact('uuid','host','path'));
            return true;
        }else{
            return false;
        }
    }

    /**
     * @param $uuid
     * @param $host
     * @param $path
     * @return bool
     */
    public function insert($uuid,$host,$path)
    {
        $dbService = $this->serviceManager->get('Db');
        $dbh = $dbService->getDbh();

        $id = $dbh->insert('dataset',[
            'uuid' => $uuid,
            'host' => $host,
            'path' => $path,
        ],true);

        if(is_numeric($id) && $id>0)
        {
            $this->proftpUpload($uuid,$host);
            $this->getEventManager()->trigger('dataset.insert.success', $this, compact('id','uuid','host','path'));
            return true;
        }else{
            return false;
        }

    }

    /**
     * @param $uuid
     * @return bool
     */
    public function delete($uuid)
    {
        $sql = "DELETE FROM dataset WHERE uuid='$uuid'";
        if($this->db->exec($sql) > 0)
        {
            $this->getEventManager()->trigger('dataset.delete.success', $this, compact('uuid'));
            return true;
        }else{
            return false;
        }
    }


    public function reload($uuid)
    {
        $data = $this->fetch($uuid);

        if(!isset($data['id']) || empty($data['id']))
        {
            return "未找到对应的记录，无法完成更新";
        }

        try {
            $this->proftpUpload($uuid, $data['host']);
        }catch(\Exception $e){
            return $e->getMessage();
        }
        return true;

    }


    /**
     * @param $uuid
     * @param $host
     */
    public function proftpUpload($uuid,$host)
    {
        if ($host=='ftp1.westgis.ac.cn')
        {
            //var_dump("http://ftp1.westgis.ac.cn/proftp_upload.php?uuid=".$uuid."&filelist=1");
            file_get_contents("http://ftp1.westgis.ac.cn/proftp_upload.php?uuid=".$uuid."&filelist=1");
        } else if  ($host=='ftp2.westgis.ac.cn') {
            //var_dump("http://ftp1.westgis.ac.cn/proftp_upload.php?uuid=".$uuid."&filelist=1");
            file_get_contents("http://ftp2.westgis.ac.cn/proftp_upload.php?uuid=".$uuid."&filelist=1");
        }
    }

}