<?php

namespace VendorBundle\Services;

use ProductBundle\Entity\Product;
use VendorBundle\Util\S3;
use phpseclib\Net\SFTP;
use Doctrine\ORM\EntityManager;
use ProductBundle\Entity\InventoryItem;
use ProductBundle\Entity\Image;

class FtpService
{
    private $ftp_host;
    private $ftp_username;
    private $ftp_password;
    private $em;
    private $s3;
    private $resizer;

    public function __construct($ftp_host, $ftp_username, $ftp_password, EntityManager $em, $s3, $resizer)
    {
        $this->ftp_host = $ftp_host;
        $this->ftp_username = $ftp_username;
        $this->ftp_password = $ftp_password;
        $this->em = $em;
        $this->s3 = $s3;
        $this->resizer = $resizer;
    }

    public function getConnection() {
        $sftp = new SFTP($this->ftp_host);
        $login = $sftp->login($this->ftp_username,$this->ftp_password);
        $dir = $sftp->chdir("/path/to/images");
        return $sftp;
    }

    public function getImages($path) {
        $views = [ "Misc" , "Front" , "Back" , "Angle" , "3Q Front"];
        $sftp = new SFTP($this->ftp_host);
        $login = $sftp->login($this->ftp_username,$this->ftp_password);
        $dir = $sftp->chdir("/path/to/images" . $path . "/");
        $list = $sftp->nlist();
        $results = [];
        $matches = 0;
        foreach($list as $each) {
            $filename = explode(".",$each);
            if ($filename[1] !== "jpg")
                continue;
            $parsedFile = explode("-",$filename[0]);
            $invItem = $this->em->getRepository("ProductBundle:InventoryItem")->findOneBy(["serialNumber" => $parsedFile[0], "status" => 1]);
            if ($invItem !== null && strlen($parsedFile[1]) == 1) {
                $view = $parsedFile[1] - count($views) <= -1 ? $parsedFile[1] : 0;
                $matches++;
                $newImage = $this->em->getRepository("ProductBundle:Image")->findOneBy(["path" => $path . '-' .$each]) ? "no" : "yes";
                if (!in_array($invItem->getProduct()->getName(), array_keys($results)))
                    $results[$invItem->getProduct()->getName()] = [];
                $results[$invItem->getProduct()->getName()][] = ["newImage" => $newImage, "serial" => $parsedFile[0], "view" => $views[$view], "filename" => $each];
            }
        }

        return(["results" => $results,
                "total" => count($list)-2,
                "matches" => $matches
               ]);
    }

    public function transferImageToS3($path, $imageData) {
        $sftp = $this->getConnection();
        $ftpPath = "/path/to/images/" . $path . "/";
        foreach($imageData as $data) {
            $data = explode(',',$data);
            $filename = $path . '-' . $data[3];
            $invItem = $this->em->getRepository("ProductBundle:InventoryItem")->findOneBy(["serialNumber" => $data[1]]);
            $image = new Image();
            $image->setPath($filename);
            $image->setView($data[2]);
            $image->setInventoryItem($invItem);
            if ($this->s3->checkS3FileExists($filename) == null) {
                $file = $sftp->get($ftpPath . $data[3]);
                if ($data[2] === "Full Front" )
                    $file = $this->resizer->ReorientImage($file, 90);
                else if ($data[2] === "Full Back")
                    $file = $this->resizer->ReorientImage($file, 270);
                $this->s3->putS3File($file,$filename, $mimeType = null);
            };
            //get correct image path
            $image->setFullPath($this->s3->checkS3FileExists($filename));
            $this->em->persist($image);
        }
        $this->em->flush();
    }

}