<?php

namespace App\Entity;

use ApiPlatform\Core\Annotation\ApiResource;
use App\Repository\FileRepository;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Serializer\Annotation\Groups;
use Symfony\Component\Serializer\Annotation\SerializedName;

#[ApiResource(collectionOperations: ['get'], itemOperations: ['get'], denormalizationContext: ['groups' => ['file:write']], normalizationContext: ['groups' => ['file:read']])]
#[ORM\Entity(repositoryClass: FileRepository::class)]
class File
{
    #[ORM\Id]
    #[ORM\GeneratedValue]
    #[ORM\Column(type: 'integer')]
    #[Groups('file:read')]
    private $id;

    #[ORM\Column(type: 'string', length: 255)]
    #[Groups('file:read')]
    private $file_name;

    #[ORM\Column(type: 'integer')]
    private $file_size;

    #[ORM\Column(type: 'string', length: 255)]
    #[Groups('file:read')]
    private $extension;

    #[ORM\Column(type: 'string', length: 255)]
    private $type = 'ebook';

    #[ORM\ManyToOne(targetEntity: Book::class, inversedBy: 'files')]
    #[ORM\JoinColumn(nullable: false)]
    #[Groups('file:read')]
    private $book;

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

    public function getFileName(): ?string
    {
        return $this->file_name;
    }

    public function setFileName(string $file_name): self
    {
        $this->file_name = $file_name;

        return $this;
    }

    public function getFileSize(): ?int
    {
        return $this->file_size;
    }

    #[Groups('file:read')]
    #[SerializedName('file_size_human')]
    public function getFileSizeHuman(): string
    {
        $base = log($this->file_size) / log(1024);
        $suffix = array("B", "KB", "MB", "GB", "TB")[floor($base)];
        return round(pow(1024, $base - floor($base)), 2) . $suffix;
    }

    public function setFileSize(int $file_size): self
    {
        $this->file_size = $file_size;

        return $this;
    }

    public function getExtension(): ?string
    {
        return $this->extension;
    }

    public function setExtension(string $extension): self
    {
        $this->extension = $extension;

        return $this;
    }

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

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

        return $this;
    }

    public function getBook(): ?Book
    {
        return $this->book;
    }

    public function setBook(?Book $book): self
    {
        $this->book = $book;

        return $this;
    }
}