<?php

namespace App\Entity\Blog;

use App\Entity\EntityInterface;
use App\Repository\Blog\CategoryRepository;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity(repositoryClass=CategoryRepository::class)
 */
class Category implements EntityInterface
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue
     * @ORM\Column(type="integer")
     */
    private $id;

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

    /**
     * @ORM\Column(type="string", length=255, nullable=true)
     */
    private $subTitle;

    /**
     * @ORM\Column(type="text", nullable=true)
     */
    private $description;

    /**
     * @ORM\Column(type="string", length=255, nullable=true)
     */
    private $slug;

    /**
     * @ORM\ManyToMany(targetEntity=Post::class, mappedBy="categories")
     */
    private $posts;

    public function __construct()
    {
        $this->posts = new ArrayCollection();
    }

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

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

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

        return $this;
    }

    public function getSubTitle(): ?string
    {
        return $this->subTitle;
    }

    public function setSubTitle(?string $subTitle): self
    {
        $this->subTitle = $subTitle;

        return $this;
    }

    public function getDescription(): ?string
    {
        return $this->description;
    }

    public function setDescription(string $description): self
    {
        $this->description = $description;

        return $this;
    }

    public function getSlug(): ?string
    {
        return $this->slug;
    }

    public function setSlug(?string $slug): self
    {
        $this->slug = $slug;

        return $this;
    }

    /**
     * @return Collection|Post[]
     */
    public function getPosts(): Collection
    {
        return $this->posts;
    }

    public function addPost(Post $post): self
    {
        if (!$this->posts->contains($post)) {
            $this->posts[] = $post;
            $post->addCategory($this);
        }

        return $this;
    }

    public function removePost(Post $post): self
    {
        if ($this->posts->removeElement($post)) {
            $post->removeCategory($this);
        }

        return $this;
    }
}