<?php

namespace FileManagerBundle\Entity;

use App\Entity\User\User;
use Doctrine\ORM\Mapping as ORM;
use FileManagerBundle\Interfaces\UserFileOwnerInterface;
use Symfony\Component\Config\Definition\Exception\Exception;

/**
 * FileProcessItem
 *
 * @ORM\Table(name="file_process_item")
 * @ORM\HasLifecycleCallbacks
 * @ORM\Entity(repositoryClass="FileManagerBundle\Repository\FileProcessItemRepository")
 */
class FileProcessItem
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var string
     *
     * @ORM\Column(name="type", type="string", length=255)
     */
    private $type;

    /**
     * @var int
     *
     * @ORM\Column(name="state", type="integer")
     */
    private $state;

    /**
     * @var \DateTime
     *
     * @ORM\Column(name="dateAdd", type="datetime")
     */
    private $dateAdd;

    /**
     * @var string
     *
     * @ORM\Column(name="guid", type="text")
     */
    private $guid;


    /**
     * @var string
     *
     * @ORM\Column(name="path", type="text")
     */
    protected $path;

    /**
     * @var string
     *
     * @ORM\Column(name="return_url", type="text")
     */
    protected $returnUrl;

    /**
     * @var string
     *
     * @ORM\Column(name="response", type="text", nullable=true)
     */
    protected $response;


    /**
     * @var UserFileOwnerInterface
     * @ORM\ManyToOne(targetEntity="FileManagerBundle\Interfaces\UserFileOwnerInterface",inversedBy="fileOwners",cascade={"persist"})
     * @ORM\JoinColumn(nullable=true)
     */
    private $userFileOwnerInterface;

    /**
     * @var array
     *
     * @ORM\Column(name="params", type="array")
     */
    protected $params;


    public function __construct($storePath)
    {
        $this->path = $storePath;
        $this->state = 0;
        $this->dateAdd = new \DateTime();
        $this->generateGuid();
    }

    /**
     * @ORM\PrePersist
     * @ORM\PreUpdate
     */
    public function prePersist(): void{
        $this->createPath();
        $this->updateFile();
    }

    /**
     * create path to work with
     */
    protected function createPath(): void{
        if(empty($this->path))
            throw new Exception('path cannot be empty');

        if(!str_contains('.lock',$this->path)){
            if(substr($this->path, -1) != "/")
                $this->path .= "/";

            $this->path .= $this->guid.'.lock';
        }
    }

    /**
     * put params in given file
     */
    protected function updateFile(): void{
        if(empty($this->params))
            throw new Exception('param cannot be empty');

        if(!is_file($this->path)){
            $tmp = array();
            $tmp['guid'] = $this->guid;
            $tmp['params'] = $this->params;
            $tmp['url'] = $this->returnUrl;

            if(!is_null($this->userFileOwnerInterface) && method_exists($this->userFileOwnerInterface,"getId"))
                $tmp['user'] = $this->userFileOwnerInterface->getId();

            file_put_contents($this->path,json_encode($tmp));
        }
    }

    /**
     * @param int $length
     * @return bool|string
     */
    private function generateHumanHash($length = 64){
        $hash = "";
        while(strlen($hash) < $length){
            $hash .= hash('sha512', random_bytes($length));
        }
        return substr($hash, 0,$length);
    }

    /**
     * generate and return a guid for the current request
     *
     * @return string
     */
    public function generateGuid(){
        $md5 = $this->generateHumanHash(64);
        $newFileName = time().'P'.$md5;
        $this->guid = $newFileName;
        return $newFileName;
    }

    /**
     * @param UserFileOwnerInterface $userFileOwnerInterface
     * @return FileProcessItem
     */
    public function setUserFileOwnerInterface(UserFileOwnerInterface $userFileOwnerInterface): FileProcessItem
    {
        $this->userFileOwnerInterface = $userFileOwnerInterface;

        return $this;
    }

    /**
     * @return UserFileOwnerInterface|null
     */
    public function getUserFileOwnerInterface(): ?UserFileOwnerInterface
    {
        return $this->userFileOwnerInterface;
    }

    /**
     * Get id
     *
     * @return int
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set type
     *
     * @param string $type
     *
     * @return FileProcessItem
     */
    public function setType($type)
    {
        $this->type = str_replace(array('/','\\','@','..'),'',$type);

        return $this;
    }

    /**
     * Get type
     *
     * @return string
     */
    public function getType()
    {
        return $this->type;
    }

    /**
     * Set state
     *
     * @param integer $state
     *
     * @return FileProcessItem
     */
    public function setState($state)
    {
        $this->state = $state;

        return $this;
    }

    /**
     * Get state
     *
     * @return int
     */
    public function getState()
    {
        return $this->state;
    }


    /**
     * Get dateAdd
     *
     * @return \DateTime
     */
    public function getDateAdd()
    {
        return $this->dateAdd;
    }

    /**
     * Set guid
     *
     * @param string $guid
     *
     * @return FileProcessItem
     */
    public function setGuid($guid)
    {
        $this->guid = $guid;

        return $this;
    }

    /**
     * Get guid
     *
     * @return string
     */
    public function getGuid()
    {
        return $this->guid;
    }

    /**
     * @return string
     */
    public function getPath(): string
    {
        return $this->path;
    }

    /**
     * @param string $path
     * @return FileProcessItem
     */
    public function setPath(string $path): FileProcessItem
    {
        $this->path = $path;

        return $this;
    }

    /**
     * @return array
     */
    public function getParams(): array
    {
        return $this->params;
    }

    /**
     * @param array $params
     * @return FileProcessItem
     */
    public function setParams(array $params): FileProcessItem
    {
        $this->params = $params;
        return $this;
    }

    /**
     * @return string
     */
    public function getResponse(): ?string
    {
        return $this->response;
    }

    /**
     * @param string $response
     * @return FileProcessItem
     */
    public function setResponse(string $response): FileProcessItem
    {
        $this->response = $response;
        return $this;
    }

    /**
     * @return string
     */
    public function getReturnUrl(): ?string
    {
        return $this->returnUrl;
    }

    /**
     * @param string $returnUrl
     * @return FileProcessItem
     */
    public function setReturnUrl(string $returnUrl): FileProcessItem
    {
        $this->returnUrl = $returnUrl;

        return $this;
    }

    public function setDateAdd(\DateTimeInterface $dateAdd): self
    {
        $this->dateAdd = $dateAdd;

        return $this;
    }
}