<?php


namespace FileManagerBundle\Service;


use Doctrine\ORM\EntityManager;
use Doctrine\ORM\OptimisticLockException;
use Doctrine\ORM\ORMException;
use FileManagerBundle\Entity\Box;
use FileManagerBundle\Entity\Boxes\PhotosBox;
use FileManagerBundle\Entity\Directory;
use FileManagerBundle\Entity\SystemBox;
use FileManagerBundle\Entity\TrashBox;
use FileManagerBundle\Entity\UserBox;
use FileManagerBundle\Interfaces\FolderItemInterface;

class DirectoryManager
{
    /**
     * @var EntityManager
     */
    private $entityManager;
    /**
     * @var \Doctrine\Common\Persistence\ObjectRepository|\Doctrine\ORM\EntityRepository|\FileManagerBundle\Repository\DirectoryRepository
     */
    private $repository;

    public function __construct(EntityManager $entityManager)
    {
        $this->entityManager = $entityManager;
        $this->repository = $this->entityManager->getRepository(Directory::class);
    }

    /**
     * @param Directory $element
     * @return Directory|null
     */
    public function quickUpdate(Directory $element): ?Directory
    {
        if (!$this->entityManager->contains($element)) {
            try {
                $this->entityManager->persist($element);
            } catch (ORMException $e) {
                return null;
            }
        }

        try {
            $this->entityManager->flush();
        } catch (OptimisticLockException $e) {
            return null;
        } catch (ORMException $e) {
            return null;
        }

        return $element;
    }

    public function createTrashDirectory(string $name, ?FolderItemInterface $parent, TrashBox $trashBox){

        $directory = new Directory();
        $directory->setDefault($name, $parent);
        $directory->setTrashBox($trashBox);

        if (!$this->quickUpdate($directory))
            return null;

        return $directory;
    }

    public function createUserBoxDirectory(string $name, ?FolderItemInterface $parent, UserBox $userBox){

        $directory = new Directory();
        $directory->setDefault($name, $parent);
        $directory->setUserBox($userBox);

        if (!$this->quickUpdate($directory))
            return null;

        return $directory;
    }

    /**
     * @param string $name
     * @param FolderItemInterface|null $parent
     * @param Box $systemBox
     * @return Directory|null
     */
    public function createSystemBoxDirectory(string $name, ?FolderItemInterface $parent, Box $systemBox): ?Directory{

        $directory = new Directory();
        $directory->setDefault($name,$systemBox , $parent);
        $directory->setParentBox($systemBox);

        if (!$this->quickUpdate($directory))
            return null;

        return $directory;
    }

    /**
     * @param string $name
     * @param Box|null $box
     * @param FolderItemInterface|null $parentDirectory
     * @return Directory|null
     */
    public function createDirectory(string $name, ?Box $box = null, ?FolderItemInterface $parentDirectory = null): ?Directory{

        $directory = new Directory();
        $directory->setDefault($name,$box, $parentDirectory);

        if (!$this->quickUpdate($directory))
            return null;

        return $directory;
    }

    public function updateBoxDirectory(Directory $directory, string $name, ?FolderItemInterface $parentDirectory = null, Box $box = null): ? Directory{
        $directory->setDefault($name, $box, $parentDirectory);

        if (!$this->quickUpdate($directory))
            return null;

        return $directory;
    }

//    public function updateUserBoxDirectory(Directory $directory, string $name, ?FolderItemInterface $parentDirectory, UserBox $userBox): ? Directory{
//        $directory->setDefault($name, $parentDirectory);
//        $directory->setUserBox($userBox);
//
//        if (!$this->quickUpdate($directory))
//            return null;
//
//        return $directory;
//    }

//    public function updateTrashBoxDirectory(Directory $directory, string $name, ?FolderItemInterface $parentDirectory, TrashBox $trashBox): ? Directory{
//        $directory->setDefault($name, $parentDirectory);
//        $directory->setTrashBox($trashBox);
//
//        if (!$this->quickUpdate($directory))
//            return null;
//
//        return $directory;
//    }

    public function getFolderByName(string $folderName){
        return $this->repository->findOneBy(['name'=>$folderName]);
    }

    public function getByName(string $name, ?Box $box = null, ?FolderItemInterface $parentDirectory = null){
        $directory = $this->entityManager->getRepository(Directory::class)->findOneBy(['name'=>$name, 'parentDirectory'=> $parentDirectory]);

        if($directory === null){
            $directory = $this->createDirectory($name, $box, $parentDirectory);
        }

        return $directory;
    }

}