<?php

declare(strict_types=1);

/*
 * Chill is a software for social workers
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace Chill\DocStoreBundle\Entity;

use ChampsLibres\AsyncUploaderBundle\Model\AsyncFileInterface;
use ChampsLibres\AsyncUploaderBundle\Validator\Constraints\AsyncFileExists;
use ChampsLibres\WopiLib\Contract\Entity\Document;
use Chill\DocGeneratorBundle\Entity\DocGeneratorTemplate;
use Chill\MainBundle\Doctrine\Model\TrackCreationInterface;
use Chill\MainBundle\Doctrine\Model\TrackCreationTrait;
use Doctrine\ORM\Mapping as ORM;
use Ramsey\Uuid\Uuid;
use Ramsey\Uuid\UuidInterface;
use Symfony\Component\Serializer\Annotation as Serializer;

/**
 * Represent a document stored in an object store.
 *
 * StoredObjects 's content should be read and written using the @see{StoredObjectManagerInterface}.
 *
 * The property `$deleteAt` allow a deletion of the document after the given date. But this property should
 * be set before the document is actually written by the StoredObjectManager.
 *
 * @ORM\Entity
 *
 * @ORM\Table("chill_doc.stored_object")
 *
 * @AsyncFileExists(
 *     message="The file is not stored properly"
 * )
 */
class StoredObject implements AsyncFileInterface, Document, TrackCreationInterface
{
    use TrackCreationTrait;
    final public const STATUS_READY = 'ready';
    final public const STATUS_PENDING = 'pending';
    final public const STATUS_FAILURE = 'failure';

    /**
     * @ORM\Column(type="json", name="datas")
     *
     * @Serializer\Groups({"write"})
     */
    private array $datas = [];

    /**
     * @ORM\Column(type="text")
     *
     * @Serializer\Groups({"write"})
     */
    private string $filename = '';

    /**
     * @ORM\Id
     *
     * @ORM\GeneratedValue
     *
     * @ORM\Column(type="integer")
     *
     * @Serializer\Groups({"write"})
     */
    private ?int $id = null;

    /**
     * @var int[]
     *
     * @ORM\Column(type="json", name="iv")
     *
     * @Serializer\Groups({"write"})
     */
    private array $iv = [];

    /**
     * @ORM\Column(type="json", name="key")
     *
     * @Serializer\Groups({"write"})
     */
    private array $keyInfos = [];

    /**
     * @ORM\Column(type="text", name="title")
     *
     * @Serializer\Groups({"write"})
     */
    private string $title = '';

    /**
     * @ORM\Column(type="text", name="type", options={"default": ""})
     *
     * @Serializer\Groups({"write"})
     */
    private string $type = '';

    /**
     * @ORM\Column(type="uuid", unique=true)
     *
     * @Serializer\Groups({"write"})
     */
    private UuidInterface $uuid;

    /**
     * @ORM\ManyToOne(targetEntity=DocGeneratorTemplate::class)
     */
    private ?DocGeneratorTemplate $template = null;

    /**
     * Store the number of times a generation has been tryied for this StoredObject.
     *
     * This is a workaround, as generation consume lot of memory, and out-of-memory errors
     * are not handled by messenger.
     *
     * @ORM\Column(type="integer", options={"default": 0})
     */
    private int $generationTrialsCounter = 0;

    /**
     * @ORM\Column(type="datetime_immutable", nullable=true, options={"default": null})
     */
    private ?\DateTimeImmutable $deleteAt = null;

    /**
     * @ORM\Column(type="text", nullable=false, options={"default": ""})
     */
    private string $generationErrors = '';

    /**
     * @param StoredObject::STATUS_* $status
     */
    public function __construct(/**
     * @ORM\Column(type="text", options={"default": "ready"})
     */
        private string $status = 'ready',
    ) {
        $this->uuid = Uuid::uuid4();
    }

    public function addGenerationTrial(): self
    {
        ++$this->generationTrialsCounter;

        return $this;
    }

    /**
     * @Serializer\Groups({"read", "write"})
     *
     * @deprecated
     */
    public function getCreationDate(): \DateTime
    {
        if (null === $this->createdAt) {
            // this scenario will quite never happens
            return new \DateTime('now');
        }

        return \DateTime::createFromImmutable($this->createdAt);
    }

    public function getDatas(): array
    {
        return $this->datas;
    }

    public function getFilename(): string
    {
        return $this->filename;
    }

    public function getGenerationTrialsCounter(): int
    {
        return $this->generationTrialsCounter;
    }

    public function getId(): ?int
    {
        return $this->id;
    }

    public function getIv(): array
    {
        return $this->iv;
    }

    public function getKeyInfos(): array
    {
        return $this->keyInfos;
    }

    /**
     * @deprecated use method "getFilename()"
     */
    public function getObjectName()
    {
        return $this->getFilename();
    }

    /**
     * @return StoredObject::STATUS_*
     */
    public function getStatus(): string
    {
        return $this->status;
    }

    public function getTitle()
    {
        return $this->title;
    }

    public function getType()
    {
        return $this->type;
    }

    public function getUuid(): UuidInterface
    {
        return $this->uuid;
    }

    public function getWopiDocId(): string
    {
        return (string) $this->uuid;
    }

    /**
     * @Serializer\Groups({"write"})
     *
     * @deprecated
     */
    public function setCreationDate(\DateTime $creationDate): self
    {
        $this->createdAt = \DateTimeImmutable::createFromMutable($creationDate);

        return $this;
    }

    public function setDatas(?array $datas): self
    {
        $this->datas = (array) $datas;

        return $this;
    }

    public function setFilename(?string $filename): self
    {
        $this->filename = (string) $filename;

        return $this;
    }

    public function setIv(?array $iv): self
    {
        $this->iv = (array) $iv;

        return $this;
    }

    public function setKeyInfos(?array $keyInfos): self
    {
        $this->keyInfos = (array) $keyInfos;

        return $this;
    }

    /**
     * @param StoredObject::STATUS_* $status
     */
    public function setStatus(string $status): self
    {
        $this->status = $status;

        return $this;
    }

    public function setTitle(?string $title): self
    {
        $this->title = (string) $title;

        return $this;
    }

    public function setType(?string $type): self
    {
        $this->type = (string) $type;

        return $this;
    }

    public function getTemplate(): ?DocGeneratorTemplate
    {
        return $this->template;
    }

    public function hasTemplate(): bool
    {
        return null !== $this->template;
    }

    public function setTemplate(?DocGeneratorTemplate $template): StoredObject
    {
        $this->template = $template;

        return $this;
    }

    public function isPending(): bool
    {
        return self::STATUS_PENDING === $this->getStatus();
    }

    public function isFailure(): bool
    {
        return self::STATUS_FAILURE === $this->getStatus();
    }

    public function getDeleteAt(): ?\DateTimeImmutable
    {
        return $this->deleteAt;
    }

    public function setDeleteAt(?\DateTimeImmutable $deleteAt): StoredObject
    {
        $this->deleteAt = $deleteAt;

        return $this;
    }

    public function getGenerationErrors(): string
    {
        return $this->generationErrors;
    }

    /**
     * Adds generation errors to the stored object.
     *
     * The existing generation errors are not removed
     *
     * @param string $generationErrors the generation errors to be added
     *
     * @return StoredObject the modified StoredObject instance
     */
    public function addGenerationErrors(string $generationErrors): StoredObject
    {
        $this->generationErrors = $this->generationErrors.$generationErrors."\n";

        return $this;
    }

    public function saveHistory(): void
    {
        if ('' === $this->getFilename()) {
            return;
        }

        $this->datas['history'][] = [
            'filename' => $this->getFilename(),
            'iv' => $this->getIv(),
            'key_infos' => $this->getKeyInfos(),
            'type' => $this->getType(),
            'before' => (new \DateTimeImmutable('now'))->getTimestamp(),
        ];
    }
}